US20080156545A1 - Method, System, and Apparatus of Cutting Earthen Formations and the like - Google Patents
Method, System, and Apparatus of Cutting Earthen Formations and the like Download PDFInfo
- Publication number
- US20080156545A1 US20080156545A1 US10/558,181 US55818104A US2008156545A1 US 20080156545 A1 US20080156545 A1 US 20080156545A1 US 55818104 A US55818104 A US 55818104A US 2008156545 A1 US2008156545 A1 US 2008156545A1
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- US
- United States
- Prior art keywords
- cutting
- front face
- cutter element
- cutting portion
- circumferential surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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- 238000005520 cutting process Methods 0.000 title claims abstract description 132
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 36
- 238000005755 formation reaction Methods 0.000 title claims description 33
- 238000000034 method Methods 0.000 title claims description 9
- 239000000758 substrate Substances 0.000 claims abstract description 54
- 239000000463 material Substances 0.000 claims abstract description 34
- 238000005553 drilling Methods 0.000 claims abstract description 6
- 229910003460 diamond Inorganic materials 0.000 claims description 53
- 239000010432 diamond Substances 0.000 claims description 53
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 239000011435 rock Substances 0.000 description 13
- 230000002349 favourable effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/56—Button-type inserts
- E21B10/567—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/56—Button-type inserts
- E21B10/567—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
- E21B10/573—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts characterised by support details, e.g. the substrate construction or the interface between the substrate and the cutting element
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Earth Drilling (AREA)
Abstract
A cutter element is provided for use on a rotary drill bit of a drilling string to cut earthen formation and the like. The cutter element includes a cutting portion formed from cutting material adapted to cut into the earthen formation, and a substrate positioned adjacent the cutting portion. The cutting portion and the substrate form a body having a substantially planar front face, a longitudinal axis extending centrally through the front face and the substrate, and a circumferential surface extending inwardly form the front face and spaced outwardly from the longitudinal axis. The cutting portion includes a cutting face that provides at least a portion of the front face. The cutting portion extends longitudinally inward from the front face to a back surface engaging or inter-facing the substrate. Thus, a distinct, longitudinally extending volume of cutting material is provided and includes a predesignated portion of the circumferential surface that extends from the cutting face to the back surface, the circumferential surface portion being predesignated for wearing contact with the earthen formation.
Description
- The present application claims the benefit of the filing date of U.S. Provisional Application Ser. No. 60/473,832, filed May 27, 2003 (pending) (hereby incorporated by reference for all purposes and made a part of the present disclosure).
- 1. Field of the Invention
- The present invention relates to methods, systems, and/or apparatus for cutting earthen formations that may be above ground or subterranean, and, more particularly, but not by way of limitation, to methods of and apparatus for cutting earthen formations for various applications such as oil, gas, and geothermal production, in addition to excavations including tunnels, pipe chases, foundation piers, building stone, quarried rock, etc.
- 2. Description of the Related Art
- The prior art is replete with designs for cutting elements or cutters secured on a drill bit and utilized in the drilling of well bores or the cutting of formations for the construction of tunnels and other subterranean earthen excavations. One type of conventional cutter is a polycrystalline diamond cutter (PDCs) that is axisymmetric and includes a diamond table attached to a substrate, usually tungsten carbide. Such a cutter is described in U.S. Pat. Nos. 4,552,232, 4,981,183, and 5,119,511, which are hereby incorporated by reference for all purposes and made a part of the present disclosure.
- The life of the cutter is controlled largely by wear or fracture. Fracture is typically a result of a combination of applied cutting loads and stresses associated with the cutter geometry and stresses residual to the high pressure/high temperature manufacturing process. Wear is a function of diamond feed stock size, integrated metallurgy, and “sintering” conditions. Wear is also a function of the volume of the diamond available at the cutting interface between the cutter and the rock formation.
-
FIG. 1 illustrates a prior art cutting element or cutter 110 engaging anearthen formation 112. The cutter 110 has a front or cuttingface 120 and circumferential all-around wall or surface 118 extending longitudinally inwardly therefrom. The conventional cutter 110 includes a cutting surface or table 122 and asubstrate 124 positioned adjacent thereto. The cutting table 122 has a front planar surface that provides thecutting face 120 and aback face 110 a positioned adjacent a forward planar face of thesubstrate 124. Theback face 110 a is planar, in parallel relation with thecutting face 120, and thus, generally normal to the longitudinal axis, L. - As shown in
FIG. 1 , the cutter 110 may be inclined with a negative back rake angle, θ, to the direction oftravel 114 in therock formation 112. In order to keep the cutter 110 buried at aconstant depth 116 in the cut, a normal load, N, is applied to the cutter 110 (often referred to as the weight on bit (WOB)). A load, L, is also applied in the direction of the cut, forcing the cutter 110 to abrade therock formation 112 anddisplace rock fragments 112 a. This load, L, is a result of the torque applied to a rotating bit and transferred to the cutter 110 secured therein. - In general, only a portion of the cutter 110 actually contacts the
rock formation 112. This includes aportion 126 of thecutting face 120 and a portion of the circumferential surface 118. As this contact area increases to cause diamond abrasion (i.e., wearing contact), it is referred to as the wear flat.FIGS. 2A-2D illustrate the process of wearing as applied to aconventional cutter 210 contracting a rock formation.FIG. 2A illustrates a substantially uniform andunworn cutter 210.FIG. 2A illustrates the formation of a wear flat 228 on thecutter 210 after operation in the formation. The wear flat 228 is, however, confined to the cutting surface ordiamond surface 222 of thecutter 210. After continued use, the wear flat 228 is worn further, as shown inFIG. 2C . At this point, the wear flat 228 extends from the cutting table 222 and into thesubstrate 224, thereby exposing the material of thesubstrate 224. In the side view ofFIG. 2D , the wear flat 228 is shown extending well into the substrate. Such exposed substrates have high rates of failure and therefore may lead to the progressive failure of the entire drill bit. Bit failures cost time and money through reduced performance and additional trip time. - In one aspect of the present invention, a cutter element is provided for use on a rotary drill bit of a drilling string to cut earthen formations and the like. The cutter element includes a cutting portion formed from cutting material (e.g., polycrystalline diamond) adapted to cut into the earthen formation, and a substrate positioned adjacent the cutting portion. The cutting portion and the substrate form a body (e.g., substantially rod shaped) having a substantially planar front face, a longitudinal axis extending centrally through the front face and the substrate, and a circumferential surface extending inwardly from the front face and spaced outwardly from the longitudinal axis. The cutting portion includes a cutting face that provides at least a portion of the front face. The cutting portion extends longitudinally inward from the front face to a back surface engaging or interfacing the substrate. Thus, a distinct, longitudinally extending volume of cutting material is provided and includes a predesignated portion of the circumferential surface that extends from the cutting face to the back surface, the circumferential surface portion being predesignated for wearing contact with the earthen formation.
- In a method according to the invention, operation of a drill bit having such a cutting elements generates a wear flat along the predesignated portion of the circumferential surface.
- For a more complete understanding of the present invention, and for further objects and advantages thereof, reference is made to the following description taken in conjunction with the accompanying drawings in which
-
FIG. 1 (Prior Art) is a side view of a prior art cutter engaging a rock formation; -
FIG. 2 (Prior Art) is an illustration of the progressive wear of the prior art cutter ofFIG. 1 ; -
FIGS. 3A-3C are illustrations of one embodiment according to the present invention; -
FIG. 3D is an illustration of the cutter ofFIG. 3A-3C engaging a rock formation; -
FIG. 4 is an illustration of an alternate embodiment of the cutter of the present invention; -
FIG. 5 is an illustration of an alternate embodiment of the cutter of the present invention; -
FIG. 6 is an illustration of alternate embodiment of the cutter of the present invention; -
FIG. 7 is an illustration of an alternate embodiment of the cutter of the present invention; -
FIG. 8 is an illustration of an alternate embodiment of the cutter of the present invention; -
FIG. 9 is an illustration of a worn cutter of one of the embodiments of the present invention; and -
FIG. 10 is an illustration of a worn cutter of one of the embodiments of the present invention. -
FIGS. 3A , 3B, and 3C provide front, longitudinal (vertical) cross-sectional, and bottom views, respectively of a cutting element orcutter 310 according to the present invention. The longitudinal axis ZZ may be described as dividing the cross-section into two halves. - The
cutter 310 has a front or cuttingface 320 outlined by a circumference orperipheral edge 320 a (which may be a chamfered, beveled, or straight edge), and the longitudinal axis, ZZ, extending from the center of the cuttingface 320 and generally normal thereto. Thecutter 310 includes a substantially forward cuttingportion 322 that is preferably comprised of polycrystalline diamond material and thus, referred to as a diamond table. In other embodiments, the material for the cutting portion may be tungsten carbide, cubic boron nitride, or other commonly used materials. Thecutter 310 further includes a substantially rearward portion provided by asubstrate 324. Thesubstrate 324 is preferably formed from tungsten carbide material, and, in other applications, other carbide materials having suitable thermal expansion properties relative to the that of the cutting material. - Referring to the cross-sectional view of
FIG. 3B , the lower half of thecutter 310 includes substantially more area of the cuttingportion 322 than the upper half. As shown therein, the back surface 320A of the cuttingportion 322 that interfaces thesubstrate 324 is non-planar, in contrast to the substantially planar surface of the cuttingface 320. The inward back surface 320A is also oriented at an angle other than normal in respect to the longitudinal axis, ZZ. Accordingly, the cuttingmaterial 322 extends longitudinally inward more so at different radii locations (and in certain sectors) than in others. In other word, the longitudinal distance, e.g., distances 320B, 320C, between thefront face 320 and the back face 320A vary. For example, an exposedsurface 350 shown inFIG. 3B extends from the cuttingface 320 longitudinally inward through a distance or depth significantly greater than at the longitudinal axis, L, or at the oppositetop edge 370. Thecutter 310 is said to have a greater or longitudinally extended volume of cuttingmaterial 310 adjacent a predesignated exposed or surface portion (e.g., surface portion 350) that extends inwardly from the cutting orfront face 320. InFIGS. 3B and 3C , this “longitudinally extended volume of cutting material” is denoted byreference 350′. -
FIG. 3D illustrates engagement of thecutter 310 with the rock formation 312, thereby providing a depth ofcut 316 into the formation 312. The engagement is provided as a result of an axial load N and a tangential load L applied through thecutter 310. Thecutter 310 has the diamond table 322 extended opposite thecutter face 320 in the area of the wear flat 328, (i.e., corresponding to 350 ofFIGS. 3B , 3C). At wear flat 328, thecutter 310 is subjected to both abrasive wear through contact under load to the rock 312 as well as heat generated to thecutter 310 from the energy exerted in the cutting process. By longitudinally extending the diamond table 322, more diamond volume is available to be worn during the drilling process, thereby confining or containing the wear flat or wear scar to the cutter material portion of thecutter 310. Such a longitudinally extended volume ofdiamond 350 life and subsequently better bit performance. - A variety of options, shown as
FIGS. 3E-EH , accomplish extension of the diamond table 322 in the vicinity of the expected wear flat 328 to increase the amount of diamond available to be abraded as the cutter wears. Full face and partial diamond face geometries may be utilized for the cutter. In each of these vertical cross sections, ofFIGS. 3E-3G , the longitudinally extended volume of cutting material is provided in the lower half of thecutter 310 and in adjacent asurface portion 350 expected or designated to correspond with the expectedwear flat 328. InFIG. 3H , the longitudinally extendeddiamond volume 350′ is provided above, as well as below the longitudinally axis, ZZ. -
FIG. 4 illustrates alternative embodiments of acutter 410 according to the invention.FIGS. 4A , 4B, and 4C provide front, vertical cross sectional, and bottom views, respectively, of a second embodiment of the present invention.FIGS. 4G-4I provide yet further variations of this alternative embodiment. In these Figures, like elements are indicated using like reference numerals. Furthermore, in each further variation, thecutter 410 employs a diamond table 422 and a reinforcingstructure 460 positioned adjacent the table 422. - Referring to
FIGS. 4A-4C , thecutter 410 of this embodiment utilizes a reinforcingstructure 460 integral to the diamond table 422. The reinforcingstructure 460 also provides a longitudinally extended diamond table to increase the volume of diamond available for wear (i.e., longitudinally extend diamond volume 450′). This feature will allow key areas of the diamond to be in a higher compressive stress state which is favorable to the reduction of fracture in the cutter. As shown in these additional Figures, there are a variety of geometrical shapes that may be utilized to form this embodiment of the cutter. Moreover, the reinforcing structure may be provided by a variety of cutting material, including polycrystalline diamond. - Referring to
FIGS. 5A-5C , another embodiment of the cutter of the present invention is illustrated. Thecutter 510 differs in that a geometrical shape ofdiamond 522 is confined within the frontal area of thecutter 510 and supported partially therearound by theadjacent substrate 524. If the diamond material is located at an angle to the centerline of thecutter 510, the extend of diamond material in contact with the formation during operation is extended, again creating more diamond material volume available for wear. - By configuring the geometric shape over most of the surface area with the
substrate 524, the diamond is stressed favorably to better resist fracture. The stresses to which the diamond is subjected are created as part of the fabrication process. Theentire cutter 510, including diamond and substrate, are elevated to extreme temperature and pressure (sintering) to allow diamond to diamond grain growth. On cooling and reduction of pressure, the substrate has a tendency to shrink at a faster rate than the diamond because the coefficient of thermal expansion is higher in the substrate than in the diamond. The end result is that the diamond table 522 is compressionally stressed, whereas thesubstrate 524 near the diamond table 524 holds more tension. In this concept, the additional stresses created through the cutting process are mostly directed to thediamond portion 522 of thecutter 510 already, which is in a more favorable stress state than thecutter substrate 524. - Referring now to
FIG. 6 , another embodiment of the present invention is illustrated. This cutter is related to the cutter ofFIG. 5 in that not only is the majority of the diamond surface area in contact with the substrate but the diamond is completely surrounded by the substrate for a significant portion of the diamond volume. By surrounding the geometrical shape contained in the substrate, the favorable stresses in the diamond are further enhanced, as well has having some substrate support to the rear of the cutting portion of the diamond, which in most cases is an enhancement to the stress state of the diamond near the wear flat and substrate boundary of the cutter. - It should be noted that the above lateral cross-sectional views, in many embodiments, is substantially similar along the longitudinal length of the cutter portion. In each such view, the area of cutting portion in one half of the cross-section is larger than in the opposite half.
- Referring to
FIG. 7 , an alternate embodiment of the cutter of the present invention is shown. Thecutter 710 of this embodiment is similar to that ofFIG. 6 in that thecutter 710 has a geometric shape which allows a different improved stress state for the diamond in addition to providing a more rigid structure relative to the highest applied loads. As shown in the lateral cross-sectional view ofFIG. 7A , the cuttingportion 722 occupies only a portion of thecutter 710. In this particular embodiment, the cuttingportion 722 is substantially bounded by thesubstrate 724. It should be noted that any such cross-sectional view along the longitudinal length of the cuttingportion 722 reveals thesubstrate 724 occupying a portion of the cross-sectional are and specifically, thecircumference 718. In respect to the embodiment ofFIG. 7C , the area occupied by the cuttingportion 722 is reduced as the longitudinal position approaches theback surface 760. - Referring to
FIG. 8 , yet another alternate cutter is illustrated. Thiscutter 810 is different from the previously described embodiments in that thesubstrate 824 is oriented with a rake angle opposite of the previous embodiments. Thecutter 810 is also different because thediamond cutting portion 822 incorporated into thesubstrate 824 rather than a face of thesubstrate 824. This concept provides a cutter having either planar or non-planar diamond elements by altering the geometry of the diamond portion of the cutter assembly. -
FIGS. 9 and 10 illustrate the wearing process applied to some of the embodiments of thecutters cutters cutter substrate cutter - It is thus believed that the operation and construction of the present invention will be apparent from the foregoing description. While the drill bit and drilling system shown and described have been characterized as being preferred it will be obvious that various changes and modifications may be made therein without departing from the spirit and scope of the invention.
Claims (25)
1. A cutter element for use on a rotary drill bit attach to a drill string to cut earthen formations and the like, said cutter element comprising:
a cutting portion formed from cutting material adapted to cut the earthen formation; and
a substrate positioned adjacent the cutting portion;
wherein the cutting portion and the substrate form a body having a substantially planar front face, a longitudinal axis extending centrally through the front face and the substrate, and a circumferential surface extending inwardly from the front face and spaced outwardly from the longitudinal axis; and
wherein the cutting portion includes a cutting face providing at least a portion of the front face, the cutting portion extending longitudinally inward from the front face to a back surface engaging the substrate, such that a distinct, longitudinally extending volume of cutting material is provided and includes a predesignated portion of the circumferential surface that extends from the cutting face to the back surface, the predesignated circumferential surface portion being predesignated for wearing contact with the earthen formation.
2. The cutter element of claim 1 , wherein the back surface deviates from normal angular relation with the longitudinal axis, such that the longitudinal distance between the front face and locations on the back surface varies.
3. The cutter element of claim 2 , wherein the front face consists entirely of the cutting face of the cutting portion.
4. The cutter element of claim 2 , wherein the cutting portion is configured such that at least one longitudinal cross-section of the cutter element, generally normal to the front face, reveals a cross-sectional area of the cutting portion with a larger area on one side of the longitudinal axis than on an opposite side of the longitudinal axis.
5. The cutter element of claim 2 , wherein the cutting portion is configured such that at least one longitudinal cross-sectional view of the cutter element, generally normal to the front face, reveals an exposed circumferential surface of the cutting portion in one half of the cross-section that is longer than a corresponding exposed circumferential surface portion of the cutting portion on an opposite half of the cross-section.
6. The cutter element of claim 2 , wherein the cutting portion is configured such that a lateral cross-sectional view of the cutting element, generally normal to the longitudinal axis, reveals a larger area of the cutting portion concentrated in one half of the cross-section adjacent the predesignated circumferential surface portion than in an opposite half of the cross-section.
7. The cutter element of claim 2 , wherein at least one longitudinal cross-sectional view of the cutting element, generally normal to the front face, reveals a longitudinally extending area of the distinct longitudinal volume of cutting material, the area having a thickness that is reduced as the area extends in the longitudinally inward direction.
8. The cutter element of claim 1 , wherein the volume of cutting material located in the vicinity of the predesignated circumferential surface portion substantially larger than the volume of cutting material located in the vicinity of other portions of the circumferential surface.
9. The cutter element of claim 1 , wherein the substrate form a portion of the front face.
10. The cutter element of claim 1 , wherein a lateral cross-sectional view through the cutting portion, generally normal to the longitudinal axis, reveals the substrate forming a portion of the exposed circumference of the cutter element.
11. The cutter element of claim 10 , wherein the cutting portion is configured such that any lateral cross-sectional view through the cutting portion, generally normal to the longitudinal axis, reveals the substrate forming a portion of the exposed circumference of the cutting element.
12. The cutter element of claim 1 , further comprising a bore extending from a portion of the circumferential surface to a portion of the cutting face, the cutting portion being situated therein.
13. The cutter element of claim 1 , wherein the cutter portion includes a reinforcing cutter material providing the distinct longitudinally extending volume.
14. The cutter element of claim 1 , wherein the cutting material is polycrystalline diamond.
15. The cutter element of claim 1 , wherein the cutting portion and the substrate form a substantially rod shaped body having a circumferential surface spaced radially from and in generally parallel relation with the longitudinal axis.
16. A cutter element for use on a rotary drill bit of a drill string to cut earthen formations and the like, said cutter element comprising:
a cutting portion formed substantially from polycrystalline diamond material adapted to cut the earthen formation; and
a substrate positioned adjacent the cutting portion;
wherein the cutting portion and the substrate form a substantially rod shaped body having a substantially planar front face, a longitudinal axis extending centrally through the front face and the substrate, and a circumferential surface extending inwardly from the front face and spaced radially from the longitudinal axis; and
wherein the cutting portion includes a cutting face providing at least a portion of the front face, the cutting portion extending longitudinally inward from the front face to a back surface interfacing the substrate, such that a distinct, longitudinally extending volume of cutting material is provided and includes a portion of the circumferential surface that extends from the cutting face to the back surface, the circumferential surface portion being predesignated for wearing contact with the earthen formation; and
wherein the cutting portion is configured such that a lateral cross-sectional view of the cutting element, generally normal to the longitudinal axis, reveals a larger area of the cutting portion concentrated in one half of the cross-section adjacent the predesignated circumferential surface portion than in an opposite half of the cross-section.
17. The cutter element of claim 16 , wherein the cutting portion is configured such that at least one longitudinal cross-section of the cutter element, generally normal to the front face, reveals a cross-sectional area of the cutting portion with a larger area on one side of the longitudinal axis than on an opposite side of the longitudinal axis.
18. The cutter element of claim 17 , wherein the back surface deviates from normal angular relation with the longitudinal axis, such that the longitudinal distance between the front face and locations on the back surface varies.
19. The cutter element of claim 18 , wherein the cutting portion is configured such that at least one longitudinal cross-sectional view of the cutter element, generally normal to the front face, reveals an exposed circumferential surface of the cutting portion on one side of the longitudinal axis that is longer than a corresponding exposed circumferential surface portion of the cutting portion on an opposite side of the longitudinal axis.
20. The cutter element of claim 16 , wherein the front face consists entirely of the cutting face of the cutting portion.
21. The cutter element of claim 16 , wherein at least one longitudinal cross-sectional view of the cutting element, generally normal to the front face, reveals a longitudinally extending area of the distinct longitudinal volume of cutting material, the area having a thickness that is reduced as the area extends in the longitudinally inward direction.
22. The cutter element of claim 16 , wherein the volume of cutting material located in the vicinity of the predesignated circumferential surface portion is substantially larger than the volume of cutting material located in the vicinity of other portions of the circumferential surface.
23. The cutter element of claim 16 , wherein the substrate provides a portion of the front face.
24. The cutter element of claim 16 , wherein the cutting portion is configured such that any lateral cross-sectional view through the cutting portion, generally normal to the longitudinal axis, reveals the substrate forming a portion of the exposed circumference of the cutter element.
25. A method of drilling a borehole, comprising the steps of:
providing a drill bit having a plurality of cutting elements thereon, the cutting elements having,
a cutting portion formed substantially from polycrystalline diamond material adapted to cut the earthen formation; and
a substrate positioned adjacent the cutting portion;
wherein the cutting portion and the substrate form a substantially rod shaped body having a substantially planar front face, a longitudinal axis extending centrally through the front face and the substrate, and a circumferential surface extending inwardly from the front face and spaced radially from the longitudinal axis;
wherein the cutting portion includes a cutting face providing at least a portion of the front face, the cutting portion extending longitudinally inward from the front face to a back surface interfacing the substrate, such that a distinct, longitudinally extending volume of cutting material is provided and includes a portion of the circumferential surface that extends from the cutting face to the back surface, the circumferential surface portion being predesignated for wearing contact with the earthen formation; and
wherein the cutting portion is configured such that a lateral cross-sectional view of the cutting element, generally normal to the longitudinal axis, reveals a larger area of the cutting portion concentrated in one half of the cross-section adjacent the predesignated circumferential surface portion than in an opposite half of the cross-section;
mounting the bit on the end of a drill string;
directing the drill bit at a position such that the cutting elements engage the earthen formation at an angle, whereby the predesignated circumferential surface portion is in contact with the earthen formation; and
operating the drill string such that the drill bit and the cutting elements cut into the earthen formation, thereby creating a wear flat along the predesignated circumferential surface portion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US10/558,181 US20080156545A1 (en) | 2003-05-27 | 2004-05-27 | Method, System, and Apparatus of Cutting Earthen Formations and the like |
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US47383203P | 2003-05-27 | 2003-05-27 | |
US10/558,181 US20080156545A1 (en) | 2003-05-27 | 2004-05-27 | Method, System, and Apparatus of Cutting Earthen Formations and the like |
PCT/US2004/016987 WO2004106693A2 (en) | 2003-05-27 | 2004-05-27 | Method and appartus for cutting earthen formations |
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US20080156545A1 true US20080156545A1 (en) | 2008-07-03 |
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US10/558,181 Abandoned US20080156545A1 (en) | 2003-05-27 | 2004-05-27 | Method, System, and Apparatus of Cutting Earthen Formations and the like |
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US7503407B2 (en) | 2003-04-16 | 2009-03-17 | Particle Drilling Technologies, Inc. | Impact excavation system and method |
US20090126994A1 (en) * | 2007-11-15 | 2009-05-21 | Tibbitts Gordon A | Method And System For Controlling Force In A Down-Hole Drilling Operation |
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US20110031036A1 (en) * | 2009-08-07 | 2011-02-10 | Baker Hughes Incorporated | Superabrasive cutters with grooves on the cutting face, and drill bits and drilling tools so equipped |
US7987928B2 (en) | 2007-10-09 | 2011-08-02 | Pdti Holdings, Llc | Injection system and method comprising an impactor motive device |
US7997355B2 (en) | 2004-07-22 | 2011-08-16 | Pdti Holdings, Llc | Apparatus for injecting impactors into a fluid stream using a screw extruder |
US8037950B2 (en) | 2008-02-01 | 2011-10-18 | Pdti Holdings, Llc | Methods of using a particle impact drilling system for removing near-borehole damage, milling objects in a wellbore, under reaming, coring, perforating, assisting annular flow, and associated methods |
US20130067985A1 (en) * | 2011-09-19 | 2013-03-21 | Varel International Ind., L.P. | Thermal-mechanical wear testing for pdc shear cutters |
US20130092455A1 (en) * | 2009-06-29 | 2013-04-18 | Baker Hughes Incorporated | Oblique face polycrystalline diamond cutter and drilling tools so equipped |
US20130118813A1 (en) * | 2011-11-11 | 2013-05-16 | Baker Hughes Incorporated | Cutting elements having laterally elongated shapes for use with earth-boring tools, earth-boring tools including such cutting elements, and related methods |
US9140072B2 (en) | 2013-02-28 | 2015-09-22 | Baker Hughes Incorporated | Cutting elements including non-planar interfaces, earth-boring tools including such cutting elements, and methods of forming cutting elements |
US20180274303A1 (en) * | 2015-11-30 | 2018-09-27 | Smith International, Inc. | Cutting structure of cutting elements for downhole cutting |
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Citations (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3112800A (en) * | 1959-08-28 | 1963-12-03 | Phillips Petroleum Co | Method of drilling with high velocity jet cutter rock bit |
US3374341A (en) * | 1963-11-26 | 1968-03-19 | Union Oil Co | Method for controlling pressure differential resulting from fluid friction forces in well-drilling operations |
US3416614A (en) * | 1965-12-27 | 1968-12-17 | Gulf Research Development Co | Hydraulic jet drilling method using ferrous abrasives |
US3576221A (en) * | 1969-07-25 | 1971-04-27 | Gulf Research Development Co | High-density drilling liquid for hydraulic jet drilling |
US3704966A (en) * | 1971-09-13 | 1972-12-05 | Us Navy | Method and apparatus for rock excavation |
US3852200A (en) * | 1973-02-08 | 1974-12-03 | Gulf Research Development Co | Drilling liquid containing microcrystalline cellulose |
US3865202A (en) * | 1972-06-15 | 1975-02-11 | Japan National Railway | Water jet drill bit |
US3924698A (en) * | 1974-04-08 | 1975-12-09 | Gulf Research Development Co | Drill bit and method of drilling |
US4042048A (en) * | 1976-10-22 | 1977-08-16 | Willie Carl Schwabe | Drilling technique |
US4391339A (en) * | 1978-08-04 | 1983-07-05 | Hydronautics, Incorporated | Cavitating liquid jet assisted drill bit and method for deep-hole drilling |
US4414592A (en) * | 1981-05-01 | 1983-11-08 | Iomega Corporation | Support for stabilizing the movement of a magnetic medium over a magnetic head |
US4534427A (en) * | 1983-07-25 | 1985-08-13 | Wang Fun Den | Abrasive containing fluid jet drilling apparatus and process |
US4624327A (en) * | 1984-10-16 | 1986-11-25 | Flowdril Corporation | Method for combined jet and mechanical drilling |
US4627502A (en) * | 1985-07-18 | 1986-12-09 | Dismukes Newton B | Liquid-filled collar for tool string |
US4768709A (en) * | 1986-10-29 | 1988-09-06 | Fluidyne Corporation | Process and apparatus for generating particulate containing fluid jets |
US4809791A (en) * | 1988-02-08 | 1989-03-07 | The University Of Southwestern Louisiana | Removal of rock cuttings while drilling utilizing an automatically adjustable shaker system |
US4825963A (en) * | 1988-07-11 | 1989-05-02 | Ruhle James L | High-pressure waterjet/abrasive particle-jet coring method and apparatus |
US5199512A (en) * | 1990-09-04 | 1993-04-06 | Ccore Technology And Licensing, Ltd. | Method of an apparatus for jet cutting |
US5291957A (en) * | 1990-09-04 | 1994-03-08 | Ccore Technology And Licensing, Ltd. | Method and apparatus for jet cutting |
US5355967A (en) * | 1992-10-30 | 1994-10-18 | Union Oil Company Of California | Underbalance jet pump drilling method |
US5421420A (en) * | 1994-06-07 | 1995-06-06 | Schlumberger Technology Corporation | Downhole weight-on-bit control for directional drilling |
US5542486A (en) * | 1990-09-04 | 1996-08-06 | Ccore Technology & Licensing Limited | Method of and apparatus for single plenum jet cutting |
US5862871A (en) * | 1996-02-20 | 1999-01-26 | Ccore Technology & Licensing Limited, A Texas Limited Partnership | Axial-vortex jet drilling system and method |
US5881830A (en) * | 1997-02-14 | 1999-03-16 | Baker Hughes Incorporated | Superabrasive drill bit cutting element with buttress-supported planar chamfer |
US5944123A (en) * | 1995-08-24 | 1999-08-31 | Schlumberger Technology Corporation | Hydraulic jetting system |
US6003623A (en) * | 1998-04-24 | 1999-12-21 | Dresser Industries, Inc. | Cutters and bits for terrestrial boring |
US6142248A (en) * | 1998-04-02 | 2000-11-07 | Diamond Products International, Inc. | Reduced erosion nozzle system and method for the use of drill bits to reduce erosion |
US6347675B1 (en) * | 1999-03-15 | 2002-02-19 | Tempress Technologies, Inc. | Coiled tubing drilling with supercritical carbon dioxide |
US6386300B1 (en) * | 2000-09-19 | 2002-05-14 | Curlett Family Limited Partnership | Formation cutting method and system |
US6571700B2 (en) * | 2000-05-17 | 2003-06-03 | Riso Kagaku Corporation | Method for making a heat-sensitive stencil |
US20060011386A1 (en) * | 2003-04-16 | 2006-01-19 | Particle Drilling Technologies, Inc. | Impact excavation system and method with improved nozzle |
US20060016622A1 (en) * | 2003-04-16 | 2006-01-26 | Particle Drilling, Inc. | Impact excavation system and method |
US20060016624A1 (en) * | 2003-04-16 | 2006-01-26 | Particle Drilling Technologies, Inc. | Impact excavation system and method with suspension flow control |
US20060021798A1 (en) * | 2003-04-16 | 2006-02-02 | Particle Drilling Technologies, Inc. | Impact excavation system and method with particle separation |
US7090017B2 (en) * | 2003-07-09 | 2006-08-15 | Halliburton Energy Services, Inc. | Low cost method and apparatus for fracturing a subterranean formation with a sand suspension |
US7172038B2 (en) * | 1997-10-27 | 2007-02-06 | Halliburton Energy Services, Inc. | Well system |
-
2004
- 2004-05-27 US US10/558,181 patent/US20080156545A1/en not_active Abandoned
- 2004-05-27 WO PCT/US2004/016987 patent/WO2004106693A2/en active Application Filing
Patent Citations (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3112800A (en) * | 1959-08-28 | 1963-12-03 | Phillips Petroleum Co | Method of drilling with high velocity jet cutter rock bit |
US3374341A (en) * | 1963-11-26 | 1968-03-19 | Union Oil Co | Method for controlling pressure differential resulting from fluid friction forces in well-drilling operations |
US3416614A (en) * | 1965-12-27 | 1968-12-17 | Gulf Research Development Co | Hydraulic jet drilling method using ferrous abrasives |
US3576221A (en) * | 1969-07-25 | 1971-04-27 | Gulf Research Development Co | High-density drilling liquid for hydraulic jet drilling |
US3704966A (en) * | 1971-09-13 | 1972-12-05 | Us Navy | Method and apparatus for rock excavation |
US3865202A (en) * | 1972-06-15 | 1975-02-11 | Japan National Railway | Water jet drill bit |
US3852200A (en) * | 1973-02-08 | 1974-12-03 | Gulf Research Development Co | Drilling liquid containing microcrystalline cellulose |
US3924698A (en) * | 1974-04-08 | 1975-12-09 | Gulf Research Development Co | Drill bit and method of drilling |
US4042048A (en) * | 1976-10-22 | 1977-08-16 | Willie Carl Schwabe | Drilling technique |
US4391339A (en) * | 1978-08-04 | 1983-07-05 | Hydronautics, Incorporated | Cavitating liquid jet assisted drill bit and method for deep-hole drilling |
US4414592A (en) * | 1981-05-01 | 1983-11-08 | Iomega Corporation | Support for stabilizing the movement of a magnetic medium over a magnetic head |
US4534427A (en) * | 1983-07-25 | 1985-08-13 | Wang Fun Den | Abrasive containing fluid jet drilling apparatus and process |
US4624327A (en) * | 1984-10-16 | 1986-11-25 | Flowdril Corporation | Method for combined jet and mechanical drilling |
US4624327B1 (en) * | 1984-10-16 | 1990-08-21 | Flowdril Corp | |
US4627502A (en) * | 1985-07-18 | 1986-12-09 | Dismukes Newton B | Liquid-filled collar for tool string |
US4768709A (en) * | 1986-10-29 | 1988-09-06 | Fluidyne Corporation | Process and apparatus for generating particulate containing fluid jets |
US4809791A (en) * | 1988-02-08 | 1989-03-07 | The University Of Southwestern Louisiana | Removal of rock cuttings while drilling utilizing an automatically adjustable shaker system |
US4825963A (en) * | 1988-07-11 | 1989-05-02 | Ruhle James L | High-pressure waterjet/abrasive particle-jet coring method and apparatus |
US5199512A (en) * | 1990-09-04 | 1993-04-06 | Ccore Technology And Licensing, Ltd. | Method of an apparatus for jet cutting |
US5542486A (en) * | 1990-09-04 | 1996-08-06 | Ccore Technology & Licensing Limited | Method of and apparatus for single plenum jet cutting |
US5291957A (en) * | 1990-09-04 | 1994-03-08 | Ccore Technology And Licensing, Ltd. | Method and apparatus for jet cutting |
US5355967A (en) * | 1992-10-30 | 1994-10-18 | Union Oil Company Of California | Underbalance jet pump drilling method |
US5421420A (en) * | 1994-06-07 | 1995-06-06 | Schlumberger Technology Corporation | Downhole weight-on-bit control for directional drilling |
US5944123A (en) * | 1995-08-24 | 1999-08-31 | Schlumberger Technology Corporation | Hydraulic jetting system |
US5862871A (en) * | 1996-02-20 | 1999-01-26 | Ccore Technology & Licensing Limited, A Texas Limited Partnership | Axial-vortex jet drilling system and method |
US5881830A (en) * | 1997-02-14 | 1999-03-16 | Baker Hughes Incorporated | Superabrasive drill bit cutting element with buttress-supported planar chamfer |
US7172038B2 (en) * | 1997-10-27 | 2007-02-06 | Halliburton Energy Services, Inc. | Well system |
US6142248A (en) * | 1998-04-02 | 2000-11-07 | Diamond Products International, Inc. | Reduced erosion nozzle system and method for the use of drill bits to reduce erosion |
US6003623A (en) * | 1998-04-24 | 1999-12-21 | Dresser Industries, Inc. | Cutters and bits for terrestrial boring |
US6347675B1 (en) * | 1999-03-15 | 2002-02-19 | Tempress Technologies, Inc. | Coiled tubing drilling with supercritical carbon dioxide |
US6571700B2 (en) * | 2000-05-17 | 2003-06-03 | Riso Kagaku Corporation | Method for making a heat-sensitive stencil |
US6386300B1 (en) * | 2000-09-19 | 2002-05-14 | Curlett Family Limited Partnership | Formation cutting method and system |
US6581700B2 (en) * | 2000-09-19 | 2003-06-24 | Curlett Family Ltd Partnership | Formation cutting method and system |
US20060011386A1 (en) * | 2003-04-16 | 2006-01-19 | Particle Drilling Technologies, Inc. | Impact excavation system and method with improved nozzle |
US20060016622A1 (en) * | 2003-04-16 | 2006-01-26 | Particle Drilling, Inc. | Impact excavation system and method |
US20060016624A1 (en) * | 2003-04-16 | 2006-01-26 | Particle Drilling Technologies, Inc. | Impact excavation system and method with suspension flow control |
US20060021798A1 (en) * | 2003-04-16 | 2006-02-02 | Particle Drilling Technologies, Inc. | Impact excavation system and method with particle separation |
US20060027398A1 (en) * | 2003-04-16 | 2006-02-09 | Particle Drilling, Inc. | Drill bit |
US7090017B2 (en) * | 2003-07-09 | 2006-08-15 | Halliburton Energy Services, Inc. | Low cost method and apparatus for fracturing a subterranean formation with a sand suspension |
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US7909116B2 (en) | 2003-04-16 | 2011-03-22 | Pdti Holdings, Llc | Impact excavation system and method with improved nozzle |
US20080017417A1 (en) * | 2003-04-16 | 2008-01-24 | Particle Drilling Technologies, Inc. | Impact excavation system and method with suspension flow control |
US20080230275A1 (en) * | 2003-04-16 | 2008-09-25 | Particle Drilling Technologies, Inc. | Impact Excavation System And Method With Injection System |
US8342265B2 (en) | 2003-04-16 | 2013-01-01 | Pdti Holdings, Llc | Shot blocking using drilling mud |
US7503407B2 (en) | 2003-04-16 | 2009-03-17 | Particle Drilling Technologies, Inc. | Impact excavation system and method |
US8162079B2 (en) | 2003-04-16 | 2012-04-24 | Pdti Holdings, Llc | Impact excavation system and method with injection system |
US20090205871A1 (en) * | 2003-04-16 | 2009-08-20 | Gordon Tibbitts | Shot Blocking Using Drilling Mud |
US20060011386A1 (en) * | 2003-04-16 | 2006-01-19 | Particle Drilling Technologies, Inc. | Impact excavation system and method with improved nozzle |
US7757786B2 (en) | 2003-04-16 | 2010-07-20 | Pdti Holdings, Llc | Impact excavation system and method with injection system |
US7793741B2 (en) | 2003-04-16 | 2010-09-14 | Pdti Holdings, Llc | Impact excavation system and method with injection system |
US7798249B2 (en) | 2003-04-16 | 2010-09-21 | Pdti Holdings, Llc | Impact excavation system and method with suspension flow control |
US8113300B2 (en) | 2004-07-22 | 2012-02-14 | Pdti Holdings, Llc | Impact excavation system and method using a drill bit with junk slots |
US7997355B2 (en) | 2004-07-22 | 2011-08-16 | Pdti Holdings, Llc | Apparatus for injecting impactors into a fluid stream using a screw extruder |
US20090038856A1 (en) * | 2007-07-03 | 2009-02-12 | Particle Drilling Technologies, Inc. | Injection System And Method |
US7987928B2 (en) | 2007-10-09 | 2011-08-02 | Pdti Holdings, Llc | Injection system and method comprising an impactor motive device |
US20090126994A1 (en) * | 2007-11-15 | 2009-05-21 | Tibbitts Gordon A | Method And System For Controlling Force In A Down-Hole Drilling Operation |
US7980326B2 (en) | 2007-11-15 | 2011-07-19 | Pdti Holdings, Llc | Method and system for controlling force in a down-hole drilling operation |
US8186456B2 (en) | 2008-02-01 | 2012-05-29 | Pdti Holdings, Llc | Methods of using a particle impact drilling system for removing near-borehole damage, milling objects in a wellbore, under reaming, coring, perforating, assisting annular flow, and associated methods |
US8037950B2 (en) | 2008-02-01 | 2011-10-18 | Pdti Holdings, Llc | Methods of using a particle impact drilling system for removing near-borehole damage, milling objects in a wellbore, under reaming, coring, perforating, assisting annular flow, and associated methods |
US8353367B2 (en) | 2008-02-01 | 2013-01-15 | Gordon Tibbitts | Methods of using a particle impact drilling system for removing near-borehole damage, milling objects in a wellbore, under reaming, coring perforating, assisting annular flow, and associated methods |
US8353366B2 (en) | 2008-02-01 | 2013-01-15 | Gordon Tibbitts | Methods of using a particle impact drilling system for removing near-borehole damage, milling objects in a wellbore, under reaming, coring, perforating, assisting annular flow, and associated methods |
US20100155063A1 (en) * | 2008-12-23 | 2010-06-24 | Pdti Holdings, Llc | Particle Drilling System Having Equivalent Circulating Density |
US20100294567A1 (en) * | 2009-04-08 | 2010-11-25 | Pdti Holdings, Llc | Impactor Excavation System Having A Drill Bit Discharging In A Cross-Over Pattern |
US8485279B2 (en) | 2009-04-08 | 2013-07-16 | Pdti Holdings, Llc | Impactor excavation system having a drill bit discharging in a cross-over pattern |
US8851206B2 (en) * | 2009-06-29 | 2014-10-07 | Baker Hughes Incorporated | Oblique face polycrystalline diamond cutter and drilling tools so equipped |
US20130092455A1 (en) * | 2009-06-29 | 2013-04-18 | Baker Hughes Incorporated | Oblique face polycrystalline diamond cutter and drilling tools so equipped |
US9598909B2 (en) | 2009-06-29 | 2017-03-21 | Baker Hughes Incorporated | Superabrasive cutters with grooves on the cutting face and drill bits and drilling tools so equipped |
US20110031036A1 (en) * | 2009-08-07 | 2011-02-10 | Baker Hughes Incorporated | Superabrasive cutters with grooves on the cutting face, and drill bits and drilling tools so equipped |
US8739904B2 (en) | 2009-08-07 | 2014-06-03 | Baker Hughes Incorporated | Superabrasive cutters with grooves on the cutting face, and drill bits and drilling tools so equipped |
US20130067985A1 (en) * | 2011-09-19 | 2013-03-21 | Varel International Ind., L.P. | Thermal-mechanical wear testing for pdc shear cutters |
US9309724B2 (en) * | 2011-11-11 | 2016-04-12 | Baker Hughes Incorporated | Cutting elements having laterally elongated shapes for use with earth-boring tools, earth-boring tools including such cutting elements, and related methods |
US20130118813A1 (en) * | 2011-11-11 | 2013-05-16 | Baker Hughes Incorporated | Cutting elements having laterally elongated shapes for use with earth-boring tools, earth-boring tools including such cutting elements, and related methods |
US10047569B2 (en) * | 2011-11-11 | 2018-08-14 | Baker Hughes Incorporated | Cutting elements having laterally elongated shapes for use with earth-boring tools, earth-boring tools including such cutting elements, and related methods |
US9140072B2 (en) | 2013-02-28 | 2015-09-22 | Baker Hughes Incorporated | Cutting elements including non-planar interfaces, earth-boring tools including such cutting elements, and methods of forming cutting elements |
US20180274303A1 (en) * | 2015-11-30 | 2018-09-27 | Smith International, Inc. | Cutting structure of cutting elements for downhole cutting |
US11814904B2 (en) * | 2015-11-30 | 2023-11-14 | Schlumberger Technology Corporation | Cutting structure of cutting elements for downhole cutting tools |
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WO2004106693A3 (en) | 2005-03-03 |
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Owner name: PARTICLE DRILLING TECHNOLOGIES, INC., TEXAS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:TIBBITTS, GORDON ALLEN;REEL/FRAME:018750/0701 Effective date: 20070105 |
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Owner name: PDTI HOLDINGS, LLC, TEXAS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PARTICLE DRILLING TECHNOLOGIES, INC.;REEL/FRAME:023348/0522 Effective date: 20091009 |
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