CN102493768A - High-frequency pulsed jet flow resonance well drilling device and well drilling method thereof - Google Patents
High-frequency pulsed jet flow resonance well drilling device and well drilling method thereof Download PDFInfo
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Abstract
The invention relates to a high-frequency pulsed jet flow resonance well drilling device and a well drilling method thereof. The high-frequency pulsed jet flow resonance well drilling device comprises an outer steel jacket, wherein one end of the outer steel jacket is connected with an upper adapter; the other end of the outer steel jacket is connected with a lower adapter; the upper adapter is connected with a drill collar by a thread; the lower adapter is connected with a drill by the thread; a small hydrogenerator, a density logger, an acoustic logger, a controller and an ultrasonic transducer are successively installed from top to bottom in the outer steel jacket; the small hydrogenerator is composed of a blade and a generator; the blade is installed above the generator; the ultrasonic transducer comprises a fixed end, a transducer and an amplitude transformer; the position on the outer steel jacket, which corresponds to the amplitude transformer, is provided with a necking section; the density logger, the acoustic logger and the controller are mutually separated by cushion blocks; and after the density logger, the acoustic logger and the controller are connected, the inner cavities of the density logger, the acoustic logger and the controller are communicated to form a well drilling fluid path. According to the high-frequency pulsed jet flow resonance well drilling device, the mechanical drilling speed is drastically improved, the improvement amplitude is 1-2 times, and the well drilling cost is effectively lowered.
Description
One, technical field:
The present invention relates to the broken rock technology field of oil drilling; Be mainly used in fields such as petroleum works, mining engineering, geotechnical engineering; Be the drilling technology that utilizes the quick broken deep formation rock of covibration and improve rate of penetration, specifically high-frequency impulse jet resonance drilling rig and boring method thereof.
Two, background technology:
Along with the high speed development of Chinese national economy, country increases the demand of petroleum resources year by year.The oil-gas exploration dynamics constantly increases, and the exploitation difficulty increases day by day.Well depth from shallow-layer to deep layer, ultra deep transformation.The difficult point of the efficient well drilling and rock crushing technology of deep formation mainly comprises: the one, and bad ground, bad ground proportion increase year by year, and the drilling speed of traditional drilling mode is more and more lower; The 2nd, existing drill bit mechanical rock breaking adds the auxiliary breaking technique for rock of jet and in deep formation, has technical bottleneck.
Modern drilling technology is on drill bit adds the basis of rotary drilling of water jet, to grow up, be current application at most, efficient drilling technologies that technology is the most perfect.At deep formation, especially in bad ground such as hard, hard, the drilling well effect of rotary drilling is very undesirable, rate of penetration is low, drilling failure takes place frequently, cost is high.
More and more slower to the broken rock process machinery drilling speed of tradition, the problem that expense is increasingly high is needed the efficient well drilling and rock crushing technology of development a new generation badly.
Three, summary of the invention:
The purpose of this invention is to provide high-frequency impulse jet resonance drilling rig, it is very undesirable that it is used to solve prior art drilling well effect, and rate of penetration is low, the problem that cost is high; Another object of the present invention provides the boring method of this high-frequency impulse jet resonance drilling rig.
The technical solution adopted for the present invention to solve the technical problems is: this high-frequency impulse jet resonance drilling rig includes outer steel sleeve; Outer steel sleeve one end is connected with last crossover sub; The other end is connected with following crossover sub; Last crossover sub is connected with drill collar through screw thread, and following crossover sub is connected with drill bit through screw thread; Small hydro turbine, densilog instrument, acoustic logging instrument, controller, ultrasonic transducer are installed in the outer steel sleeve from top to bottom successively; Small hydro turbine is made up of blade and generator, and blade installation is above generator, and ultrasonic transducer comprises fixed end, transducer, horn, and there is a undergauge section at the corresponding position of outer steel sleeve and horn; Densilog instrument, acoustic logging instrument, controller are separated through cushion block each other, and after densilog instrument, acoustic logging instrument, controller connected, their inner chamber communicated, and forms the drilling fluid passage.
Small hydro turbine in the such scheme is the general generator that surges, and is used to well logging, signal receiver, ultrasonic transducer electric energy is provided.
Densilog instrument is the neutron density logger in the such scheme, is used to measure current formation rock density.
Acoustic logging instrument is common single-emission and double-receiving acoustic logging instrument in the such scheme, is used to measure current formation rock interval transit time.
Horn in the such scheme is index shape or catenary horn, and material can be steel or copper, amplify mechanical oscillation amplitude or speed that PZT (piezoelectric transducer) produces, or with concentration of energy on less area, play cumulative action.
The boring method of above-mentioned high-frequency impulse jet resonance drilling rig is:
1) indoor whether normal through the work of high-pressure large-displacement pump group inspection high-frequency impulse jet resonance drilling rig, and at the bottom of the lower going-into-well;
2) circulating fluid, and rotary drill column carry and apply the pressure of the drill to drill bit through the adjustment hook, small hydro turbine generating behind the circulating fluid, and equipment is started working;
3) controller is given densilog instrument and the acoustic logging instrument electric current that shares out the work, and densilog instrument is tested the rock density of current drilling stratum, and acoustic logging instrument is tested current stratum interval transit time data, and these data finally feed back to controller;
4) data that produce of controller analytic density logging instrument and acoustic logging instrument scan the amplitude-frequency characteristic of rock material, confirm the resonance frequency of rock material;
5) controller selects one to be lower than peaked as the optimum resonance frequency in current formation rock material resonance frequency scope;
6) controller is that transducer distributes the high frequency pumping signal of telecommunication, transducer and with horn be ultrasonic signal with the high frequency pumping electrical signal conversion, and pass to drilling fluid;
7) drilling fluid forms high-frequency impulse jet impulse shaft bottom through drill bit, makes bottom rock reach resonance state,
8) when the stratum lithology changes; Its resonance frequency changes; Densilog instrument and acoustic logging instrument test data also can change; Controller distributes the high frequency pumping signal of telecommunication to transducer again according to the data that densilog instrument and acoustic logging instrument provide, and makes high-frequency impulse jet frequency reach the resonance frequency of formation rock resonance once more, realizes the broken rock of resonance again.
Beneficial effect:
1) the present invention makes full use of the character that intensity reduces significantly and the promotion internal fissure that resonates is expanded under the rock material resonance condition.The deep formation rock buries deeply, confined pressure big, the rock compaction degree is high, and deep formation rock rate of penetration is slower, uses the rock resonant properties can significantly improve rate of penetration, and increase rate reaches 1 to 2 times, effectively reduces drilling cost.
2) the present invention utilizes drilling fluid and small hydro turbine converting electrical energy, can be that logging instrument and ultrasonic transducer improve power resources with security and stability, effectively solves the problem that can't transmit electric energy in the drilling process.Utilize drilling fluid to transmit ultrasonic vibration and make rock produce resonance, reduce the power output of ultrasonic transducer, improve the drill bit efficiency of breaking rock.
Four, description of drawings:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is an A-A section of structure among Fig. 1;
Fig. 3 is a B-B section of structure among Fig. 1;
Fig. 4 is an installation site of the present invention sketch map.
Crossover sub on 1; 2 blades; 3 generators; 4 fixed legs; 5 densilog instruments; Cushion block on 6; 7 acoustic logging instruments; 8 lower cushion blocks; 9 controllers; 10 drilling fluid passages; 11 transducer fixed ends; 12 transducer fixed legs; 13 transducers; 14 drilling fluid constricted channel; 15 horn; 16 outer steel sleeves; 17 times crossover subs; 18 upper drilling string; 19 drill collars; 20 high-frequency impulse jets resonance drilling rig; 21 drill bits.
Five, the specific embodiment:
Below in conjunction with accompanying drawing the present invention is done further explanation:
In conjunction with Fig. 1, Fig. 2, shown in Figure 3; This high-frequency impulse jet resonance drilling rig includes outer steel sleeve 16; Outer steel sleeve 16 1 ends are connected with last crossover sub 1; The other end is connected with following crossover sub 17, and last crossover sub 1 is connected with drill collar 19 through screw thread, and following crossover sub 17 is connected with drill bit 21 through screw thread; Small hydro turbine, densilog instrument 5, acoustic logging instrument 7, controller 9, ultrasonic transducer are installed in the outer steel sleeve 16 from top to bottom successively; Small hydro turbine is made up of blade 2 and generator 3; Blade 2 is installed in generator 3 tops; Ultrasonic transducer comprises transducer fixed end 11, transducer 13, horn 15, and outer steel sleeve 16 has a undergauge section with horn 15 corresponding positions, and this undergauge section is a drilling fluid constricted channel 14; Densilog instrument 5, acoustic logging instrument 7, controller 9 are separated the corresponding each other drilling fluid path 10 that also forms in the center between densilog instrument 5, acoustic logging instrument 7, the controller 9 each other through cushion block.
Ultrasonic transducer is the vibrational excitation device among the present invention, is used to produce the high frequency small amplitude motion, and its ultrasonic vibration is passed to drilling fluid, makes drilling fluid have the characteristics of high-frequency impulse jet.
Ultrasonic transducer comprises three parts such as transducer fixed end 11, transducer 13, horn 15 among the present invention, is connected with outer steel sleeve 16 through transducer fixed end 11.Transducer 13 is high-power piezoelectric ceramic sheet or magnetostriction materials, is longitudinal vibration transducer, and transducer 13 utilizes the piezoelectric inverse piezoelectric effect to change electric energy into extensional vibration.The main effect of horn 15 is to amplify mechanical oscillation amplitude or speed that PZT (piezoelectric transducer) produces, or with concentration of energy on less area, play cumulative action.Transducer 13 passes to drilling fluid with the ultrasonic vibration of horn 15; Finally form high frequency pulsing jet a little through the drill bit high pressure nozzle; The jet impulse bottom rock transmits the ultrasonic pulse vibration, and its vibration frequency produces the resonance of rock near the formation rock intrinsic frequency.
Drilling fluid impacts blade 2, produces electric current through generator 3, and generator 3 directly is densilog instrument 5, acoustic logging instrument 7, controller 9 and transducer 13 power supplies; Power supply size and frequency are through controller 9 controls; Controller 9 is used to analyze the stratum resonance frequency, and for transducer 13 provides the pumping signal that needs, drilling fluid flow into drill bit 21 through drilling fluid path 10 and drilling fluid constricted channel 14; Drilling fluid constricted channel 14 has a trumpet-shaped inner chamber, and horn mouth upwards.
Density, the interval transit time data of the current formation rock of densilog instrument 5, acoustic logging instrument 7 tests, and data are fed back to controller 9, after controller 9 is analyzed data; Confirm parameters such as transducer 13 exciting current voltages, frequency; Transducer 13 provides pumping signal according to controller 9, produces the correspondent frequency vibration, through horn 15 amplitude is amplified; Transducer 13 passes to the drilling fluid in the drilling fluid constricted channel 14 with the vibration that horn 15 produces; The final drill bit 21 that passes through forms high-frequency impulse jet impulse shaft bottoms, makes bottom rock reach resonance state, and drill bit 21 is through the further broken formation rock of rotation mode.In this broken rock process drill bit 21 rotatablely move with rock ultrasonic vibration campaign be synchronous.So just can before drill bit, produce a local Dynamic Crack Propagation district that always exists.Under the pressure of the drill confirmed and drilling speed, produce and keep the resonance of jet impulse district rock material through the high-frequency impulse jet.
As shown in Figure 4, this high-frequency impulse jet resonance drilling rig is installed between drill collar 19 and the drill bit 21, and the each several part parts are through being threaded.Nearly bit drilling tool combination is made up of, high-frequency impulse jet resonance drilling rig 20 and drill bit 21 from top to bottom, and drill collar 19 is connected with upper drilling string 18.
The method of above-mentioned high-frequency impulse jet resonance drilling rig drilling well:
1) indoor whether normal, and with above-mentioned each parts Fig. 4 successively connects, at the bottom of the lower going-into-well through 20 work of high-pressure large-displacement pump group inspection high-frequency impulse jet resonance drilling rig;
2) circulating fluid, and rotary drill column, hook carries and apply the pressure of the drill for drill bit 21 through adjusting, small hydro turbine generating behind the circulating fluid, equipment is started working;
3) controller 9 is given densilog instrument 5 and acoustic logging instrument 7 electric current that shares out the work, the rock density of the current drilling stratum of densilog instrument 5 tests, and the current stratum of acoustic logging instrument 7 tests interval transit time data, these data finally feed back to controller 9;
4) data that produce of controller 9 analytic density logging instruments 5 and acoustic logging instrument 7 scan the amplitude-frequency characteristic of rock material, confirm the resonance frequency of rock material;
5) controller 9 selects one to be lower than peaked as the optimum resonance frequency in current formation rock material resonance frequency scope;
6) controller 9 is that transducer 13 distributes the high frequency pumping signals of telecommunication, transducer 13 and with horn 15 be ultrasonic signal with the high frequency pumping electrical signal conversion, and pass to drilling fluid;
7) drilling fluid forms high-frequency impulse jet impulse shaft bottom through drill bit 21, makes bottom rock reach resonance state,
8) when the stratum lithology changes; Its resonance frequency changes; Densilog instrument 5 also can change with acoustic logging instrument 7 test datas; Controller 9 distributes the high frequency pumping signal of telecommunication to transducer 13 again according to the data that densilog instrument 5 and acoustic logging instrument 7 provide, and makes high-frequency impulse jet frequency reach the resonance frequency of formation rock resonance once more, realizes the broken rock of resonance again.
About select drill bit amplitude higher limit this on the one hand, before this value the resonance of drill bit generation be do not have destructive.Surpass this limit, resonance might cause destruction.
Estimate suitable frequency coverage, in this scope, select a less frequency range as driving frequency.After rock resonance and cracking expansion, its resonance frequency can reduce.Before, the rock of upper frequency is after cracking in the frequency range, and its resonance frequency reduces and moves closer to driving frequency, and the resonance energy of rock continues.
Claims (6)
1. high-frequency impulse jet resonance drilling rig; It is characterized in that: this high-frequency impulse jet resonance drilling rig includes outer steel sleeve (16); Outer steel sleeve (16) one ends are connected with last crossover sub (1); The other end is connected with following crossover sub (17), and last crossover sub (1) is connected with drill collar (19) through screw thread, and following crossover sub (17) is connected with drill bit (21) through screw thread; Small hydro turbine, densilog instrument (5), acoustic logging instrument (7), controller (9), ultrasonic transducer are installed in the outer steel sleeve (16) from top to bottom successively; Small hydro turbine is made up of blade (2) and generator (3); Blade (2) is installed in generator (3) top; Ultrasonic transducer comprises fixed end (11), transducer (13), horn (15), and there is a undergauge section at the corresponding position of outer steel sleeve and horn (15); After densilog instrument (5), acoustic logging instrument (7), controller (9) connected, their inner chamber communicated, and formed drilling fluid passage (14).
2. high-frequency impulse jet resonance drilling rig according to claim 1, it is characterized in that: described small hydro turbine is the general generator that surges.
3. high-frequency impulse jet resonance drilling rig according to claim 2, it is characterized in that: described densilog instrument (5) is the neutron density logger.
4. high-frequency impulse jet resonance drilling rig according to claim 2, it is characterized in that: described acoustic logging instrument (7) is common single-emission and double-receiving acoustic logging instrument.
5. high-frequency impulse jet resonance drilling rig according to claim 2, it is characterized in that: described horn (15) is index shape or catenary horn, and material can be steel or copper.
6. the boring method of the described high-frequency impulse jet resonance of a claim 1 drilling rig, it is characterized in that: the boring method of this high-frequency impulse jet resonance drilling rig is following,
1) indoor whether normal through high-pressure large-displacement pump group inspection high-frequency impulse jet resonance drilling rig (20) work, and at the bottom of the lower going-into-well;
2) circulating fluid, and rotary drill column, hook carries and apply the pressure of the drill for drill bit (21) through adjusting, small hydro turbine generating behind the circulating fluid, equipment is started working;
3) controller (9) is given densilog instrument (5) and acoustic logging instrument (7) electric current that shares out the work; The rock density of the current drilling stratum of densilog instrument (5) test; The current stratum of acoustic logging instrument (7) test interval transit time data, these data finally feed back to controller (9);
4) data that produce of controller (9) analytic density logging instrument (5) and acoustic logging instrument (7) scan the amplitude-frequency characteristic of rock material, confirm the resonance frequency of rock material;
5) controller (9) selects one to be lower than peaked as the optimum resonance frequency in current formation rock material resonance frequency scope;
6) controller (9) is that transducer (13) distributes the high frequency pumping signal of telecommunication, and transducer (13) and horn (15) are ultrasonic signal with the high frequency pumping electrical signal conversion, and pass to drilling fluid;
7) drilling fluid forms high-frequency impulse jet impulse shaft bottom through drill bit (21), makes bottom rock reach resonance state,
8) when the stratum lithology changes; Its resonance frequency changes; Densilog instrument (5) and acoustic logging instrument (7) test data also can change; Controller (9) distributes the high frequency pumping signal of telecommunication to transducer (13) again according to the data that densilog instrument (5) and acoustic logging instrument (7) provide, and makes high-frequency impulse jet frequency reach the resonance frequency of formation rock resonance once more, realizes the broken rock of resonance again.
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| CN201110394711.8A CN102493768B (en) | 2011-12-02 | 2011-12-02 | High-frequency pulsed jet flow resonance well drilling device and well drilling method thereof |
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| CN104763337A (en) * | 2015-03-03 | 2015-07-08 | 东北石油大学 | Bottom drilling tool assembly for realizing resonance of shaft bottom rock |
| CN104797774A (en) * | 2012-11-20 | 2015-07-22 | 哈里伯顿能源服务公司 | Dynamic agitation control apparatus, systems, and methods |
| CN105464588A (en) * | 2016-01-15 | 2016-04-06 | 吉林大学 | Ultrasonic vibration rock crushing experimental device and experimental method |
| CN105464635A (en) * | 2015-12-01 | 2016-04-06 | 铜仁中能天然气有限公司 | Shale gas well production increase device with inherent frequency measuring unit |
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| CN104797774B (en) * | 2012-11-20 | 2018-07-31 | 哈里伯顿能源服务公司 | Dynamic agitation control device, system and method |
| CN104797774A (en) * | 2012-11-20 | 2015-07-22 | 哈里伯顿能源服务公司 | Dynamic agitation control apparatus, systems, and methods |
| CN103774993A (en) * | 2014-03-02 | 2014-05-07 | 吉林大学 | Piezoelectric ceramic sonic drill |
| CN104763337A (en) * | 2015-03-03 | 2015-07-08 | 东北石油大学 | Bottom drilling tool assembly for realizing resonance of shaft bottom rock |
| CN106468138A (en) * | 2015-08-14 | 2017-03-01 | 中国石油化工股份有限公司 | A kind of supersonic wave drill device and method |
| CN105464635A (en) * | 2015-12-01 | 2016-04-06 | 铜仁中能天然气有限公司 | Shale gas well production increase device with inherent frequency measuring unit |
| CN105464588A (en) * | 2016-01-15 | 2016-04-06 | 吉林大学 | Ultrasonic vibration rock crushing experimental device and experimental method |
| CN105464588B (en) * | 2016-01-15 | 2017-07-04 | 吉林大学 | A kind of ultrasonic activation detritus experimental provision and experimental technique |
| CN107059972A (en) * | 2017-04-20 | 2017-08-18 | 广东和发输变电安装有限公司 | A kind of hydraulic pressure Work machine people system and management method |
| CN109386279A (en) * | 2017-08-09 | 2019-02-26 | 中国石油化工股份有限公司 | A kind of pit shaft gas incursion check method and system |
| CN109798105A (en) * | 2017-11-14 | 2019-05-24 | 中国石油化工股份有限公司 | Measurement while-drilling instrument and measurement-while-drilling system |
| CN108278078A (en) * | 2018-02-05 | 2018-07-13 | 中国石油大学(北京) | Ultrasonic wave high-frequency percussion drilling rig |
| CN108278078B (en) * | 2018-02-05 | 2020-01-24 | 中国石油大学(北京) | Ultrasonic high-frequency impact drilling device |
| CN111380779A (en) * | 2018-12-29 | 2020-07-07 | 中国石油天然气股份有限公司 | Device for testing sedimentation stability of drilling fluid |
| CN110972615A (en) * | 2019-11-19 | 2020-04-10 | 华南农业大学 | Soil natural frequency pulse airflow soil-breaking cultivating device and pulse gas soil-breaking ditching fertilizer applicator |
| CN112627812A (en) * | 2020-11-30 | 2021-04-09 | 中海石油（中国）有限公司天津分公司 | Underground blocking layer short section for measuring lithology and drilling assembly |
| CN112576196A (en) * | 2021-01-07 | 2021-03-30 | 东北石油大学 | Ultrasonic and mechanical drilling tool based combined device and drilling method thereof |
| WO2022257478A1 (en) * | 2021-06-11 | 2022-12-15 | 北京三一智造科技有限公司 | Pulse drilling apparatus |
| CN113958281A (en) * | 2021-11-04 | 2022-01-21 | 东北石油大学 | Utilize ultrasonic vibration to prevent drill string nipple joint of annular mud package |
| CN113997211A (en) * | 2021-11-09 | 2022-02-01 | 中铁工程装备集团有限公司 | Direct built-in ultrasonic vibration assisted water jet nozzle |
| CN114294001A (en) * | 2021-12-26 | 2022-04-08 | 中国平煤神马能源化工集团有限责任公司 | Ultrasonic vibration and ultrasonic high-voltage pulse jet comprehensive rock drilling device and using method |
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