CN103498651B - Thickened oil steam-stimulated well pressure curve gathers and application process - Google Patents
Thickened oil steam-stimulated well pressure curve gathers and application process Download PDFInfo
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- CN103498651B CN103498651B CN201310408432.1A CN201310408432A CN103498651B CN 103498651 B CN103498651 B CN 103498651B CN 201310408432 A CN201310408432 A CN 201310408432A CN 103498651 B CN103498651 B CN 103498651B
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Abstract
The present invention proposes the collection of a kind of thickened oil steam-stimulated well pressure curve and application process, the method comprises: steps A: the temperature and pressure data gathering a thickened oil steam-stimulated well stewing well pressure Restoration stage after steam injection, and the collection position of temperature and pressure data is well head place; Step B: according to the pressure build-up curve of a temperature and pressure data creating thickened oil steam-stimulated well of the thickened oil steam-stimulated well gathered, and record the subsequent production trend of thickened oil steam-stimulated well after this steam injection; Step C: make the multiple pressure build-up curve after the repeatedly steam injection of a thickened oil steam-stimulated well or make the pressure build-up curve of the multiple thickened oil steam-stimulated wells in same oil recovery block, and recording corresponding subsequent production trend; Step D: the one or more pressure build-up curve templates forming the thickened oil steam-stimulated well of a described thickened oil steam-stimulated well or oil recovery block according to step C, and determine the subsequent production trend corresponding to each pressure build-up curve template.
Description
Technical field
The present invention relates to oil recovery field, be specifically related to the collection of a kind of thickened oil steam-stimulated well pressure curve and application process, to judge steam soak later stage steam injection efficiency fast.
Background technology
Heavy crude reservoir is handled up development late stage, ubiquity inefficient well increases, economic benefit is obviously deteriorated, the contradiction such as usually not go out after steam injection drives a well, although have at present a lot of document and report in various degree apply falloff curve or pressure build-up curve, but these technology are all the pressure monitorings to gas well or stratum reset pressure etc., under can not HTHP being realized and the real-time collection of pressure and storage, all do not mention the acquisition method of the pressure and temperature under steam injection high-temperature and high-pressure conditions and utilize this pressure curve to the quick judgement of producing well Production trend after steam soak.After steam injection, only have when by the time driving a well, could find that steam injection efficiency is bad, at this moment just need again to close oil well steam injection again, cannot realizing judging steam injection efficiency when not driving a well, delaying the activity duration, increase operating cost, affect operating efficiency.
Summary of the invention
The object of this invention is to provide the collection of a kind of thickened oil steam-stimulated well pressure curve and application process, to solve the problem that prior art is difficult to judge when not driving a well steam injection efficiency.After the present invention can also solve steam injection, when adopting remedial measures for needs, prior art must drive a well the problem that just can complete.
For this reason, the present invention proposes a kind of method of temperature, pressure Real-time Collection of steam-stimulated well at high temperature under high pressure, storage and data processing, the pressure build-up curve analysis classification recurrence gathered is utilized to produce pressure build-up curve masterplate, and lower step measure embodiment is provided to masterplate curve type, recycling masterplate and the pressure build-up curve of new steam injection well guidance well of handling up of comparing is produced.
The thickened oil steam-stimulated well pressure curve collection that the present invention proposes and application process comprise:
Steps A: the temperature and pressure data gathering a thickened oil steam-stimulated well stewing well pressure Restoration stage after steam injection, set every N minute and gather a secondary data, the collection position of temperature and pressure data is well head place;
Step B: according to the pressure build-up curve of a temperature and pressure data creating described thickened oil steam-stimulated well of the described thickened oil steam-stimulated well gathered, and record the subsequent production trend of a described thickened oil steam-stimulated well after this steam injection;
Step C: make the multiple pressure build-up curve after the repeatedly steam injection of a described thickened oil steam-stimulated well or make the pressure build-up curve of the multiple thickened oil steam-stimulated wells in same oil recovery block, and recording corresponding subsequent production trend;
Step D: the one or more pressure build-up curve templates forming the thickened oil steam-stimulated well of a described thickened oil steam-stimulated well or described oil recovery block according to step C, and determine the subsequent production trend corresponding to each pressure build-up curve template.
Further, the collection of described thickened oil steam-stimulated well pressure curve and application process also comprise step e: carry out steam injection to target thickened oil steam-stimulated well, gather the temperature and pressure data of described target thickened oil steam-stimulated well stewing well pressure Restoration stage after steam injection, set every N minute and gather a secondary data, the collection position of temperature and pressure data is well head place;
Make the pressure build-up curve of this target thickened oil steam-stimulated well, the pressure build-up curve of this target thickened oil steam-stimulated well and pressure build-up curve template are contrasted, judge the home type of target thickened oil steam-stimulated well, according to the home type of target thickened oil steam-stimulated well, judge the subsequent production trend of this target thickened oil steam-stimulated well.
Further, follow-up technical measures are taked according to the Production trend of target thickened oil steam-stimulated well.
Further, described follow-up technical measures comprise: the normal exploitation that drives a well, do not drive a well direct after-teeming steam and take energization, viscosity reduction or displacement of reservoir oil measure.
Further, described steps A also comprises: before the temperature and pressure data of described collection thickened oil steam-stimulated well stewing well pressure Restoration stage after steam injection, gather the temperature T of described thickened oil steam-stimulated well in steam injection process, when only having T to reach more than 250 DEG C, steam injection is qualified, could make described template with the pressure data of the thickened oil steam-stimulated well gathered stewing well pressure Restoration stage after steam injection.
Further, described step e also comprises: before the temperature and pressure data gathering described target thickened oil steam-stimulated well stewing well pressure Restoration stage after steam injection, gather the temperature T1 of described target thickened oil steam-stimulated well in steam injection process, when only having T1 to reach more than 250 DEG C, steam injection is qualified, could make the pressure build-up curve of described target thickened oil steam-stimulated well of the pressure data of the described target thickened oil steam-stimulated well gathered stewing well pressure Restoration stage after steam injection.
Present invention utilizes heavy crude reservoir to handle up pressure data and the down-hole at well head place in exploitation or the corresponding feature of the pressure data at shaft bottom place, by gathering the pressure data at well head place, analyze, draw the Production trend of producing well after steam soak, foundation can be provided for the production of thickened oil steam-stimulated well after steam injection in the future.
In addition, prior art is monitored oil reservoir reset pressure at normal temperatures, instead of under the HTHP of steam, can not be used for judging the Production trend of producing well after steam soak, the present invention is the real-time collection of the temperature, pressure under HTHP, analyze, and form masterplate, effectively can judge the Production trend of producing well after steam soak.
And then, no matter the present invention is in template construct process or in the manufacturing process of the pressure build-up curve of target thickened oil steam-stimulated well, the temperature and pressure data of stewing well pressure Restoration stage after all not only gathering steam injection, also to gather in steam injection process, or after steam injection before stewing well pressure Restoration stage, gather the temperature data of steam injection, to make template and to carry out actual contrast, using the steam injecting temperature data before well pressure Restoration stage stewing after steam injection as the qualified condition of steam injection, and as evidence, whether feasiblely judge making template and carry out actual contrast, like this, improve the accuracy of the present invention's application.
Accompanying drawing explanation
Fig. 1 is the structural representation of the thickened oil steam-stimulated well pressure curve harvester according to the embodiment of the present invention;
Fig. 2 is the figure of the template curve according to the embodiment of the present invention, wherein, shows the first figure of ascending-type;
Fig. 3 is the figure of the template curve according to the embodiment of the present invention, wherein, shows the second figure of ascending-type;
Fig. 4 is the figure of the template curve according to the embodiment of the present invention, wherein, shows the first figure of steady down type;
Fig. 5 is the figure of the template curve according to the embodiment of the present invention, wherein, shows the second figure of steady down type;
Fig. 6 is the figure of the template curve according to the embodiment of the present invention, wherein, shows the first figure of quick down type;
Fig. 7 is the figure of the template curve according to the embodiment of the present invention, wherein, shows the second figure of quick down type;
Fig. 8 is the figure of the template curve according to the embodiment of the present invention, wherein, shows the first figure of notch cuttype;
Fig. 9 is the figure of the template curve according to the embodiment of the present invention, wherein, shows the second figure of notch cuttype;
Figure 10 is the figure of the template curve according to the embodiment of the present invention, wherein, shows first low rear the first figure rising type;
Figure 11 is the figure of the template curve according to the embodiment of the present invention, wherein, shows the first low rear the second figure rising type.
Drawing reference numeral illustrates:
1, first end 12, the second end 2 of hoop, oil pipe short circuit 3, union 4, end plate 5, pressure meter 6, thermometer 7, cooling tube 8, the high pressure resistant valve of hoop 11, hoop
In Fig. 2 to Figure 11, abscissa is time (unit for minute), and ordinate is pressure (unit is MPa)
Detailed description of the invention
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, now contrast accompanying drawing and the specific embodiment of the present invention is described.
Thickened oil steam-stimulated well pressure curve of the present invention collection and application process comprise:
Steps A: gathering a thickened oil steam-stimulated well stewing temperature and pressure data temperature of well pressure Restoration stage and collection position of pressure data after steam injection is well head place;
Such as, pressure meter is arranged on before steam injection on the steam injection well head of thickened oil steam-stimulated well to be tested, in order to gather pressure data, in addition, thermometer can also be arranged on the steam injection well head of to be tested well of handling up, in order to collecting temperature data, the temperature data gathered like this reflects actual temperature and the steam injection situation at scene or well head place more accurately relative to the temperature at outlet of steam boiler place, can learn that whether actual steam injection situation is qualified; Set every N minute and (be such as 3 minutes, 5 minutes, 7 minutes or set as required, preferred interval 5 minutes, like this, image data frequency comparatively dense, the curve made is more meticulous) gather a secondary data, the time gathered comprises: in steam injection process and after steam injection in 3-7 days, the temperature and pressure data at continuous acquisition well head place, and whole gatherer process is about 8-12 days;
Step B: according to the pressure build-up curve of a temperature and pressure data creating described thickened oil steam-stimulated well of the described thickened oil steam-stimulated well gathered, and record the subsequent production trend of a described thickened oil steam-stimulated well after this steam injection; Subsequent production trend such as comprises: oil-well strata energy is sufficient, normal, the oil-well strata energy deficit of output after oil well stream-injection drives a well, steam injection there will be the situation of High water cut more after driving a well, oil-well strata energy has certain deficit, steam injection can not there will be after driving a well or production declining situation, oil-well strata energy have certain deficit, often occur after steam injection drives a well that feed flow is poor, oil-well strata energy deficit is serious, can not drive a well, or occur in High water cut region, after driving a well, occur the situations such as High water cut;
Step C: make the multiple pressure build-up curve after the repeatedly steam injection of a described thickened oil steam-stimulated well or make the pressure build-up curve of the multiple thickened oil steam-stimulated wells in same oil recovery block, and record corresponding subsequent production trend, namely record subsequent production trend after each steam injection of described thickened oil steam-stimulated well or the subsequent production trend of multiple thickened oil steam-stimulated well after each steam injection;
Step D: the one or more pressure build-up curve templates forming the thickened oil steam-stimulated well of a described thickened oil steam-stimulated well or described oil recovery block according to step C, and determine the subsequent production trend corresponding to each pressure build-up curve template.
Template curve is a large amount of measured datas by prior thickened oil steam-stimulated well (can be a well, also can be the Duo Koujing of an oil recovery block), and combines the curve of well Production development regression fit gained of handling up.Template curve abscissa is the time, ordinate is pressure, is analyzed by the pressure curve of the pressure curve of a bite well obtained according to step C or many mouthfuls of wells of an oil recovery block, arranges, can also revise with productive frontiers, adopt data processing methods such as intending recurrence to produce masterplate.Make in template procedure, often survey a bite well and form a figure, masterplate is that the figure overlap that a upper thousand sheets is close produces, and likely also revises with creation data, returns out universal law.
Further, the collection of described thickened oil steam-stimulated well pressure curve and application process also comprise step e: carry out steam injection to target thickened oil steam-stimulated well, gather the temperature and pressure data of described target thickened oil steam-stimulated well stewing well pressure Restoration stage after steam injection, set every N minute and gather a secondary data, the collection position of temperature and pressure data is well head place;
Make the pressure build-up curve of this target thickened oil steam-stimulated well, the pressure build-up curve of this target thickened oil steam-stimulated well and pressure build-up curve template are contrasted, judge the home type of target thickened oil steam-stimulated well, namely judge that the pressure build-up curve of target thickened oil steam-stimulated well belongs to any pressure build-up curve template, according to the home type of target thickened oil steam-stimulated well, judge the subsequent production trend of this target thickened oil steam-stimulated well.
Step e is namely applied the pressure data of target thickened oil steam-stimulated well collection and pressure build-up curve, contrast by the pressure build-up curve template of the same time period obtained in advance, thus can when not driving a well, just can prejudge the subsequent production trend of target thickened oil steam-stimulated well, for the subsequent production of this well provides theoretical direction.
Further, according to the Production trend of target thickened oil steam-stimulated well, take follow-up technical measures.Like this, can when can normally produce, opening well and making production, if can not normally produce, then when not driving a well, can directly taking the remedial measures such as after-teeming steam, avoiding and can not produce remedial measures such as taking after-teeming steam again after driving a well and technologicly doing over again and repeatedly of causing.
Further, described follow-up technical measures comprise: the normal exploitation that drives a well, do not drive a well direct after-teeming steam and take the measures such as energization, viscosity reduction or the displacement of reservoir oil.According to the Production trend of target thickened oil steam-stimulated well, follow-up technical measures that are suitable or correspondence can be adopted, to accomplish to shoot the arrow at the target, make the continuous technical measures of target thickened oil steam-stimulated well pointed.
Further, described steps A also comprises: before the temperature and pressure data of described collection thickened oil steam-stimulated well stewing well pressure Restoration stage after steam injection, gather the temperature T of described thickened oil steam-stimulated well in steam injection process, when only having T to reach more than 250 DEG C, steam injection is qualified, could make described template with the pressure data of the thickened oil steam-stimulated well gathered stewing well pressure Restoration stage after steam injection.Like this, can ensure the making of pressure build-up curve template, be when steam injection is qualified, thus, ensure that the quality of pressure build-up curve template, because, the outlet of injection boiler and the well head of thickened oil steam-stimulated well have larger distance, generally at about 2000 meters.Although the steam parameter in the exit of injection boiler can reach the requirement of steam injection, but the well head of thickened oil steam-stimulated well is arrived through a segment distance, there is larger energy loss, likely there is the underproof situation of steam injection, if with the data creating template obtained in the underproof situation of steam injection, then lose the original intention and meaning that make template.
Further, described step e also comprises: before the temperature and pressure data gathering described target thickened oil steam-stimulated well stewing well pressure Restoration stage after steam injection, gather the temperature T1 of described target thickened oil steam-stimulated well in steam injection process, when only having T1 to reach more than 250 DEG C, steam injection is qualified, could make the pressure build-up curve of described target thickened oil steam-stimulated well of the pressure data of the described target thickened oil steam-stimulated well gathered stewing well pressure Restoration stage after steam injection.It is identical for making pressure build-up curve with the requirement of making to steam injecting temperature of template curve above to target thickened oil steam-stimulated well.
No matter the present invention is in template construct process or in the manufacturing process of the pressure build-up curve of target thickened oil steam-stimulated well, the temperature and pressure data of stewing well pressure Restoration stage after all not only gathering steam injection, also to gather in steam injection process, or after steam injection before stewing well pressure Restoration stage, gather the temperature data of steam injection, to make template and to carry out actual contrast, using the steam injecting temperature data before well pressure Restoration stage stewing after steam injection as the qualified condition of steam injection, and as evidence, whether feasiblely judge making template and carry out actual contrast, like this, improve the accuracy of the present invention's application.
In the present invention, such as, template curve comprises with Types Below: ascending-type, steadily down type, fast down type, notch cuttype, first lowly rise type and pressure-free type afterwards, 6 types altogether, wherein, the pressure of pressure-free type is always 0, and without the need to diagram, Fig. 2 to Figure 11 shows the template curve of remaining 5 types.Above-mentioned template curve is by a large amount of measured curve, the well Production development regression fit gained and combination is handled up, in actual production, the steam injection well of above-mentioned 6 types is after each steam injection terminates, all drive a well to carry out follow-up operation, for also need supplementary steam injection or again closing well could operation when, define drive a well repetition in the program of closing well and waste.According to the present invention, there is template curve, then just can judge steam injection efficiency when not driving a well, determined whether drive a well operation or other operations, the repetition of the closing well that drives a well can be reduced.
Fig. 2 and Fig. 3 shows two types of ascending-type, and this type of curve feature is that stewing well pressure is in rising trend gradually after short-term (a day or about a day) adjustment, and the oil-well strata energy possessing this type of curvilinear characteristic is sufficient, and after oil well stream-injection drives a well, output is normal.Wherein, in the later stage, in Fig. 2, the speed of pressure increase is faster than Fig. 3.(Fig. 2 is the rising having flex point, and Fig. 3 is continuous rising substantially)
Fig. 4 and Fig. 5 shows two types of steady down type, this type of curve feature is stewing well pressure is steady or steadily (namely not having the decline of flex point) downward trend gradually after short-term correction, this type of curve feature is stewing well pressure is steady or trend of dropping steadily gradually after short-term (a day or about a day) adjustment, the oil-well strata energy possessing this type of curvilinear characteristic is sufficient, and after oil well stream-injection drives a well, output is normal.Wherein, the shape of Fig. 4 is protruding upward, and the shape of Fig. 5 is to lower recess.
Fig. 6 and Fig. 7 shows two types of quick down type, this type of curve feature is stewing well pressure is quick downward trend, as compared to the steady down type of Fig. 4 with Fig. 5, the decline dropping to flex point fast of quick down type, and under this situation, the force value in template curve latter stage is also relatively low, generally differs from an order of magnitude.That is, Fig. 5 terminal pressure be about 3Mpa or 3Mpa, Fig. 6 and Fig. 7 also just at about 0.3Mpa or 0.3Mpa, possess the oil-well strata energy deficit of this type of curvilinear characteristic, steam injection there will be the situation of High water cut more after driving a well.Wherein in Fig. 6 pressure drop than Fig. 7 decline more hurry up;
Fig. 8 and Fig. 9 shows two types of notch cuttype, class curve feature is that pressure starts in trend of dropping steadily, then sharply decline again, last again in moderate tone, the oil-well strata energy possessing this type of curvilinear characteristic has certain deficit, steam injection can not there will be after driving a well or production declining situation, can consider after-teeming steam or take other well stimulation.The difference of Fig. 8 and Fig. 9: at the steady section in later stage, Fig. 8 is leveling style curve or stable with a slight decline, and Fig. 9 is steadily increasing at the steady section in later stage;
Figure 10 and Figure 11 shows first low rear two types rising type, this type of curve feature is that incipient stage (pressure at stewing initial stage in well stage) pressure significantly declines, then significantly rise again, the oil-well strata energy possessing this type of curvilinear characteristic has certain deficit, often occurs that feed flow is poor after steam injection drives a well.Figure 10 and Figure 11 difference is in back segment ascent stage, and Figure 10 rises always, and Figure 11 declines after rising a period of time.
For the pressure-free type do not shown in the drawings, stewing well pressure is always 0Mpa.The oil-well strata energy deficit possessing this type of curvilinear characteristic is serious, can not drive a well, or occurs in High water cut region, occur High water cut after driving a well.
The present invention, in the collection of thickened oil steam-stimulated well temperature and pressure data of stewing well pressure Restoration stage after steam injection, adopts thickened oil steam-stimulated well pressure curve harvester as shown in Figure 1.Thickened oil steam-stimulated well pressure curve harvester comprises: hoop 1; Oil pipe short circuit 2, is connected in first end 11(Fig. 1 of described hoop, and the first end of each parts is right-hand member); Union 3, is connected to the first end of described oil pipe short circuit 2; End plate 4(also claim blind plate), be connected to the first end of described union 3; Pressure meter 5, to be connected on described oil pipe short circuit 2 and between described hoop 1 and described union 3; Be arranged on the thermometer 6 on the first end of end plate, described thermometer has probe (not shown), and described end plate 3 is provided with connecting hole, and described probe passes described hoop 1 along the axis of described hoop 1 by described connecting hole.Wherein, hoop 1, oil pipe short circuit 2, union 3 are all tubular part, and end plate 3 is provided with connecting hole, and like this, probe can be deep in the head valve at well head place, records the temperature at well head place.
The present invention is contained on steam injection well head before steam injection, pressure and temperature data can be read by dial plate, its data are stored in USB flash disk, through the collection to data, the temperature, pressure curve map in steam injection stage and stewing well stage can be obtained, the temperature and pressure of electronic curve steam injection part is used for monitoring steam injection quality.Electron pressure curve being boiled in a covered pot over a slow fire well part and carry out comparison of classification by block, hole condition, the condition of production, return into pressure stencil, when not driving a well, just can judge the situation of steam injection and the situation of stewing well.This harvester can carry out the collection of real-time continuous at high temperature under high pressure to pressure and temperature, store.
Further, as Fig. 1, described thickened oil steam-stimulated well pressure curve harvester also comprises: cooling tube 7, is connected to described pressure meter 5 and describedly states between oil pipe short circuit 2, to ensure the working environment of gauge measurement and to extend the manometric life-span.
Further, the side direction of described oil pipe short circuit is provided with installing hole, and described pressure meter is connected on described installing hole, and namely pressure meter is according to the side direction at oil pipe short circuit, like this, can utilize the lateral space of oil pipe short circuit, makes whole device entirety comparatively compact.
Further, described thickened oil steam-stimulated well pressure curve harvester also comprises: high pressure resistant valve 8, be connected with described installing hole, described pressure meter 5 is connected on described installing hole, to control steam injection and gaging pressure by described cooling tube 7 and described high pressure resistant valve 8 successively.
Further, described thermometer 6 is USB flash disk memory type temperature record sheet, and thermometer is because being that probe connects, and general electronic thermometer is just passable.Just add USB flash disk storage., like this, temperature data record comparatively closely automatically can be obtained.Image data frequency is encrypted, and can reach 5 minutes data, and energy continuous acquisition 5-10 days, generate electronic document after reading with USB flash disk, instruct the production of well of handling up.Further, described thickened oil steam-stimulated well pressure curve harvester also comprises: the computer be connected with described USB flash disk memory type temperature record sheet.After completing collection, with USB flash disk, gathered data reading is stored in computer, goes out electronic curve by excel Software on Drawing.
Further, the second end 12 of hoop connects tubing valve on steam injection well head or sleeve valve, such as, connect the tubing valve of production tree, like this, just can be convenient for measuring.
Further, described pressure meter is USB flash disk memory-type, and in harvester, preferred CYR-2009SU disk storage formula manograph, like this, can obtain pressure data record comparatively closely automatically.
Operating principle of the present invention is as follows: above-mentioned thickened oil steam-stimulated well pressure curve harvester, be contained on steam injection well head before steam injection, probe stretches in well, set every 5 minutes and gather a secondary data, continue after steam injection to gather 3-7 days, until pressure stability, the about 8-12 days of this process, at ordinary times can sense data by dial plate.After completing collection, with USB flash disk, gathered data reading is stored in computer, data processing can be carried out with conventional software, such as, go out electronic curve by excel Software on Drawing.
The temperature and pressure of electronic curve steam injection part is used for monitoring steam injection quality.Electron pressure curve is boiled in a covered pot over a slow fire well part and carry out comparison of classification by block, hole condition, the condition of production, return into pressure stencil.
Recycling pressure stencil judges fast to steam injection efficiency, and along with the condition of production, masterplate finds that situation is revised at any time at any time, make it to serve production better.
Method of the present invention, with strong points, by method of the present invention, steam injection efficiency can be judged to blockette, hole condition, the condition of production, especially to the judgement more accurate quick of same well or the around steam injection efficiency of the well of same block.The present invention can in each oil field, each block first utilizes oneself block Anomalous character and gained pressure curve to draw the masterplate of oneself, then carries out data acquisition to target well, then contrasts, can extensive use.
The foregoing is only the schematic detailed description of the invention of the present invention, and be not used to limit scope of the present invention.For each ingredient of the present invention can mutually combine under the condition of not conflicting, any those skilled in the art, equivalent variations done under the prerequisite not departing from design of the present invention and principle and amendment, all should belong to the scope of protection of the invention.
Claims (3)
1. thickened oil steam-stimulated well pressure curve gathers and an application process, and it is characterized in that, the collection of described thickened oil steam-stimulated well pressure curve and application process comprise:
Steps A: the temperature and pressure data gathering a thickened oil steam-stimulated well stewing well pressure Restoration stage after steam injection, set every N minute and gather a secondary data, the collection position of temperature and pressure data is well head place;
Step B: according to the pressure build-up curve of a temperature and pressure data creating described thickened oil steam-stimulated well of the described thickened oil steam-stimulated well gathered, and record the subsequent production trend of a described thickened oil steam-stimulated well after this steam injection;
Step C: make the multiple pressure build-up curve after the repeatedly steam injection of a described thickened oil steam-stimulated well or make the pressure build-up curve of the multiple thickened oil steam-stimulated wells in same oil recovery block, and recording corresponding subsequent production trend;
Step D: the one or more pressure build-up curve templates forming the thickened oil steam-stimulated well of a described thickened oil steam-stimulated well or described oil recovery block according to step C, and determine the subsequent production trend corresponding to each pressure build-up curve template;
The collection of described thickened oil steam-stimulated well pressure curve and application process also comprise step e: carry out steam injection to target thickened oil steam-stimulated well, gather the temperature and pressure data of described target thickened oil steam-stimulated well stewing well pressure Restoration stage after steam injection, set every N minute and gather a secondary data, the collection position of temperature and pressure data is well head place;
Make the pressure build-up curve of this target thickened oil steam-stimulated well, the pressure build-up curve of this target thickened oil steam-stimulated well and described pressure build-up curve template are contrasted, judge the home type of target thickened oil steam-stimulated well, according to the home type of target thickened oil steam-stimulated well, judge the subsequent production trend of this target thickened oil steam-stimulated well;
Described steps A also comprises: before the temperature and pressure data of described collection thickened oil steam-stimulated well stewing well pressure Restoration stage after steam injection, gather the temperature T of described thickened oil steam-stimulated well in steam injection process, when only having T to reach more than 250 DEG C, steam injection is qualified, could make described pressure build-up curve template with the pressure data of the thickened oil steam-stimulated well gathered stewing well pressure Restoration stage after steam injection;
Described step e also comprises: before the temperature and pressure data gathering described target thickened oil steam-stimulated well stewing well pressure Restoration stage after steam injection, gather the temperature T1 of described target thickened oil steam-stimulated well in steam injection process, when only having T1 to reach more than 250 DEG C, steam injection is qualified, could make the pressure build-up curve of described target thickened oil steam-stimulated well of the pressure data of the described target thickened oil steam-stimulated well gathered stewing well pressure Restoration stage after steam injection.
2. thickened oil steam-stimulated well pressure curve as claimed in claim 1 gathers and application process, it is characterized in that, according to the Production trend of target thickened oil steam-stimulated well, takes follow-up technical measures.
3. thickened oil steam-stimulated well pressure curve as claimed in claim 2 gathers and application process, and it is characterized in that, described follow-up technical measures comprise: the normal exploitation that drives a well, do not drive a well direct after-teeming steam and take energization, viscosity reduction or displacement of reservoir oil measure.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4127170A (en) * | 1977-09-28 | 1978-11-28 | Texaco Exploration Canada Ltd. | Viscous oil recovery method |
| US4127172A (en) * | 1977-09-28 | 1978-11-28 | Texaco Exploration Canada Ltd. | Viscous oil recovery method |
| US4667739A (en) * | 1986-03-10 | 1987-05-26 | Shell Oil Company | Thermal drainage process for recovering hot water-swollen oil from a thick tar sand |
| CN1234472A (en) * | 1999-03-25 | 1999-11-10 | 金军 | Steam chemical incoming-outcoming method for extracting superthick oil |
| CN100999992A (en) * | 2006-01-10 | 2007-07-18 | 中国石油天然气股份有限公司 | Method for transferring steam driven at thickened oil steam taking-in and sending-out later period post |
| CN103161435A (en) * | 2013-03-13 | 2013-06-19 | 中国石油大学(北京) | Well test interpretation method of vertical well for thickened oil thermal recovery |
| CN103161436A (en) * | 2013-03-13 | 2013-06-19 | 中国石油大学(北京) | Well test interpretation method of horizontal well for thickened oil thermal recovery |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4566536A (en) * | 1983-11-21 | 1986-01-28 | Mobil Oil Corporation | Method for operating an injection well in an in-situ combustion oil recovery using oxygen |
| US9482081B2 (en) * | 2010-08-23 | 2016-11-01 | Schlumberger Technology Corporation | Method for preheating an oil-saturated formation |
-
2013
- 2013-09-10 CN CN201310408432.1A patent/CN103498651B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4127170A (en) * | 1977-09-28 | 1978-11-28 | Texaco Exploration Canada Ltd. | Viscous oil recovery method |
| US4127172A (en) * | 1977-09-28 | 1978-11-28 | Texaco Exploration Canada Ltd. | Viscous oil recovery method |
| US4667739A (en) * | 1986-03-10 | 1987-05-26 | Shell Oil Company | Thermal drainage process for recovering hot water-swollen oil from a thick tar sand |
| CN1234472A (en) * | 1999-03-25 | 1999-11-10 | 金军 | Steam chemical incoming-outcoming method for extracting superthick oil |
| CN100999992A (en) * | 2006-01-10 | 2007-07-18 | 中国石油天然气股份有限公司 | Method for transferring steam driven at thickened oil steam taking-in and sending-out later period post |
| CN103161435A (en) * | 2013-03-13 | 2013-06-19 | 中国石油大学(北京) | Well test interpretation method of vertical well for thickened oil thermal recovery |
| CN103161436A (en) * | 2013-03-13 | 2013-06-19 | 中国石油大学(北京) | Well test interpretation method of horizontal well for thickened oil thermal recovery |
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