CN202689929U - Oriented drilling tool for shale gas development - Google Patents
Oriented drilling tool for shale gas development Download PDFInfo
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- CN202689929U CN202689929U CN 201220248888 CN201220248888U CN202689929U CN 202689929 U CN202689929 U CN 202689929U CN 201220248888 CN201220248888 CN 201220248888 CN 201220248888 U CN201220248888 U CN 201220248888U CN 202689929 U CN202689929 U CN 202689929U
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- fairlead
- cylinders
- drilling tool
- guiding
- transmission shaft
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Abstract
The utility model discloses an oriented drilling tool for shale gas development. The oriented drilling tool comprises a screw drill, a transmission shaft, a hydraulic system, a guiding sleeve and a casing sleeved outside the screw drill, wherein four cylinders parallel to the axial direction are arranged on the periphery at the lower end of the guiding sleeve and evenly distributed on the guiding sleeve, the included angle formed by every two adjacent cylinders is 90 degree, every two spaced cylinders which form the included angle of 180 degrees form a pair of reverse synchronous cylinders, and two pairs of reverse synchronous cylinders are formed. Four guiding pushing arms are arranged on the guiding sleeve corresponding to the four cylinders, one ends of the guiding pushing arms are hinged to the guiding sleeve, and piston rod ends of the four cylinders are respectively configured with the other ends of the guiding pushing arms through pushing blocks to form an adjustable upper stabilizer. The guiding pushing arms are equivalent to a controllable eccentric upper stabilizer and combined with a lower stabilizer rotating close to a drill bit, so that a well hole track is smooth, and control accuracy and efficiency of the well hole track are improved.
Description
Technical field
The utility model relates to a kind of guide drilling tool, relates in particular to a kind of shale gas exploitation guide drilling tool.
Background technology
Shale gas is as a kind of unconventional energy resource.In the exploitation of unconventional energy resource shale gas, in order to increase gas production, usually need horizontal well drilling, but because the anisotropic on stratum usually causes that well track departs from, bring certain difficulty for the exploitation of shale gas.
At present, traditional horizontal well development technology is divided into peupendicular hole section, build section and three sections drilling wells of net horizontal section, need to expend the plenty of time, has virtually increased development cost.And external advanced guide drilling tool can full well section use in horizontal well development, can reduce the trip-out number of times, greatly improves operating efficiency.The present external commercial rotary drilling steering tool of using, the mode that a kind of drilling process adopts the slip of static pushing type to creep into because that the guiding push arm stretches out is discontinuous, owing to slide and creep into, easily produces the spiral well simultaneously.Another kind is dynamic pushing type rotary drilling mode, and its guiding push arm is because the backup borehole wall damages obviously the guiding push arm.In addition, the external commercial guide drilling tool of using is installed turbine electricity generation system more, the AutoTrak RCLS of Baker Hughes utilizes turbine generation to come to TT﹠C system and hydraulic system power supply, and the PowerDrive SRD of Schlumberger utilizes turbine generation to come to power to stabilized platform; And employing radial plunger pump form in the domestic relevant guide drilling tool, utilize the rotary actuation radial plunger pump work between rotary middle spindle and the fairlead, because the effect of radial plunger pump, fairlead can produce transfer phenomenon, thereby cause that the guide drilling tool guiding accuracy reduces, adopt simultaneously the radial plunger pump form owing to the restriction of fairlead radial dimension, the design space of plunger displacement pump is very little, cause pump delivery very little, low-response during pistons work.
The utility model content
The utility model provides a kind of shale gas exploitation guide drilling tool that improves guiding accuracy and drilling efficiency for above-mentioned problems of the prior art.
The utility model is to address the above problem the technical scheme that adopts to be:
A kind of shale gas exploitation guide drilling tool, comprise helicoid hydraulic motor, power transmission shaft, hydraulic system, fairlead and be enclosed within the outer shell of helicoid hydraulic motor, the helicoid hydraulic motor upper end is connected with drill collar, the helicoid hydraulic motor lower end is connected with power transmission shaft, the power transmission shaft lower end is connected with drill bit by lower stabilizer, shell is connected with fairlead, described fairlead is sleeved on outside the power transmission shaft, fairlead upper end inner chamber is installed on upper bearing (metal), the lower end inner chamber is installed on lower bearing, described hydraulic system comprises plunger displacement pump, solenoid operated directional valve, be installed on TT﹠C system on the fairlead, solenoid operated directional valve, it is characterized in that being provided with 4 oil cylinders parallel with axial direction in the lower end of fairlead periphery, 4 oil cylinders are mutually 90 ° and are distributed on the fairlead, per 2 oil cylinders of 180 ° of being separated by consist of a pair of reverse sync oil cylinder, form two pairs of reverse sync oil cylinders, on fairlead, be provided with 4 guiding push arms corresponding to 4 oil cylinders, one end of described guiding push arm is hinged on the fairlead, the tailpiece of the piston rod of described 4 oil cylinders by the other end configuration of vertebra piece with the guiding push arm, consists of adjustable upper stabilizer respectively.
By technique scheme, the piston rod of described four oil cylinders all is connected with the conical surface of vertebra piece, and wherein, per two rod chambers in the every pair of reverse sync oil cylinder are connected, and per two rodless cavities are connected with solenoid operated directional valve respectively by hydraulic lock.
By technique scheme, in each oil cylinder, be installed on the displacement transducer that can control the oil cylinder displacement, described displacement transducer can feed back to TT﹠C system with the oil cylinder displacement data that detects.
By technique scheme, described plunger displacement pump is axial plunger pump, and axial plunger pump comprises swash plate, piston shoes, plunger, cylinder body, joins oil clot, and axial plunger pump is installed between shell and the power transmission shaft, and the cylinder body of plunger displacement pump is connected with power transmission shaft by spline.
By technique scheme, described solenoid operated directional valve is the 3-position 4-way solenoid operated directional valve, and Median Function is the Y type.
The course of work of the present utility model is: the utility model records the parameters such as hole angle and azimuth by matching used MWD/LWD, if well track and hole angle or the orientation generation deviation of being scheduled to, microprocessor in the TT﹠C system of down-hole is revised well track with the control instruction that sets, microprocessor sends instruction control 3-position 4-way electromagnetic switch valve events, hydraulic oil promotes cylinder action, the piston rod of oil cylinder promotes the motion of guiding push arm by the vertebra piece, in-oil cylinder displacement transducer with Displacement Feedback to TT﹠C system, piston rod arrives assigned address, meta is got back in the solenoid operated directional valve outage, and oil cylinder is in the auxiliary lower self-locking of hydraulic lock.Until hole angle and azimuth that recovery presets.This moment, microprocessor sent instruction, and oil cylinder is got back to original position.Simultaneously, the guiding push arm is equivalent to stabilizer on the controlled off-centre, realizes directed eccentric, drilling assembly is strengthened eccentric effect under the pressure of the drill effect, simultaneously in conjunction with lever principle, executing agency passes to drill bit with the eccentric force under the pressure of the drill effect by lower stabilizer, with the nearly bit guiding of implementation tool.
Compared with prior art, the utility model has been obtained obvious technique effect:
1, the utility model combines with lower stabilizer by the guiding push arm, and in conjunction with lever principle, the eccentric force of executing agency under the pressure of the drill effect passes to drill bit by lower stabilizer, with the nearly bit guiding of implementation tool.Adopt the stabilizer of nearly bit, make well track more level and smooth, improved control accuracy and the efficient of borehole track.
2, employing by a hydraulic pump drive, has been simplified hydraulic system with the series opposing synchronous fuel tank of displacement transducer greatly, is conducive to the miniaturization of instrument.
3, utilize the technique effect of the axial plunger displacement pump work of helicoid hydraulic motor rotary actuation to be: the turbine electricity generation system of the first, avoiding utilizing the motor-driven needs; The second, avoided at fairlead and power transmission shaft the problem that radial plunger pump causes the fairlead transfer being installed; Three, adopt the axial plunger pump form effectively to utilize the free space of drilling tool, the axial plunger pump delivery is large, and response is fast during pistons work; Four, adopt axial plunger pump, be conducive to the miniaturization of instrument.
Description of drawings
Fig. 1 is the structure chart of an embodiment of the present utility model.
Fig. 2 is hydraulic system schematic diagram among Fig. 1.
Fig. 3 is the structure chart of axial plunger displacement pump among Fig. 1.
Wherein: 1-helicoid hydraulic motor; 2-rubber bushing; 3-shell; 4-axial plunger pump; 5-flexible universal shaft; 6-fairlead; 7-upper bearing (metal); 8-hydraulic system; 9-TT﹠C system; 10-power transmission shaft; 11-oil cylinder; 11a-oil cylinder; 11b-oil cylinder; 11c-oil cylinder; 11d-oil cylinder; 12-guiding push arm; 13-centrum; 14-lower bearing; 15-pressure-loaded bearing; 16-stabilizer; 17-pipe nipple; 18-drill bit; 19a-3-position 4-way solenoid operated directional valve; 19b-3-position 4-way solenoid operated directional valve; 20a-hydraulic lock; 20b-hydraulic lock; 21-one way valve; 22-overflow valve; 23-fuel tank; The 24-piston shoes; The 25-swash plate; The 26-plunger; The 27-cylinder body; The 28-spline; 29-joins oil clot.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further.
As shown in Figure 1, a kind of shale gas exploitation guide drilling tool, comprise helicoid hydraulic motor 1, rubber bushing 2, flexible universal shaft 5, power transmission shaft 10, fairlead 6 and be enclosed within the outer shell 3 of helicoid hydraulic motor, the helicoid hydraulic motor upper end is connected with drill collar, the lower end is connected with flexible universal shaft 5, flexible universal shaft 5 is connected with power transmission shaft 10, the power transmission shaft lower end is connected with drill bit 18 by stabilizer 16, stabilizer 16 is connected with drill bit 18 by pipe nipple 17, power transmission shaft 10 and fairlead 6 are connected to form relatively turnable structure by upper bearing (metal) 7 and lower bearing 14, are installed on TT﹠C system 9 on the fairlead 6,3-position 4-way solenoid operated directional valve 19.The lower end periphery of fairlead 6 is provided with 4 oil cylinders parallel with axial direction, oil cylinder 11a, oil cylinder 11b, oil cylinder 11c, oil cylinder 11d is mutually 90 ° and is distributed on the fairlead 6, per 2 oil cylinders of 180 ° of being separated by consist of a pair of reverse sync oil cylinder, form two pairs of reverse sync oil cylinders, on fairlead, be provided with 4 guiding push arms 12 corresponding to 4 oil cylinders, one end of described guiding push arm 12 is hinged on the fairlead, the tailpiece of the piston rod of 4 oil cylinders is respectively by the other end configuration of vertebra piece with the guiding push arm, consist of adjustable upper stabilizer, wherein tailpiece of the piston rod is connected with vertebra piece radially.
As shown in Figure 2, hydraulic system 8 comprises axial plunger pump 4,3-position 4-way solenoid operated directional valve 19, oil cylinder 11, hydraulic lock 20, one way valve 21, overflow valve 22 and fuel tank 23; TT﹠C system 9 and 3-position 4-way solenoid operated directional valve 19 control connections, the Median Function of 3-position 4-way solenoid operated directional valve 19 is the Y type; The 3-position 4-way solenoid operated directional valve is 2, is respectively 19a, 19b, and hydraulic lock has 2, is respectively 20a, 20b, and described hydraulic lock is made of two hydraulic control one-way valves respectively.Wherein the rodless cavity of oil cylinder 11a is connected with 3-position 4-way solenoid operated directional valve 19b by hydraulic lock 20b, the rod chamber of the rod chamber of oil cylinder 11a and oil cylinder 11c is connected to form a pair of reverse sync oil cylinder, the rodless cavity of oil cylinder 11c is connected with 3-position 4-way solenoid operated directional valve 19b by hydraulic lock 20b, and 3-position 4-way solenoid operated directional valve 19b is connected with axle box plunger displacement pump 4 by one way valve; The rodless cavity of oil cylinder 11b is connected with solenoid operated directional valve 19a by hydraulic lock 20a, the rod chamber of the rod chamber of oil cylinder 11b and oil cylinder 11d is connected to form another to the reverse sync oil cylinder, the rodless cavity of oil cylinder 11d is connected with 3-position 4-way solenoid operated directional valve 19a by hydraulic lock 20a, and 3-position 4-way solenoid operated directional valve 19a is connected with axle box plunger displacement pump 4 by one way valve.
When skew occurs in well track, matching used MWD/LWD can measure the hole deviation of well and the orientation of push arm with respect to the well flash that lead the most accurately, and data are passed to the microprocessor of TT﹠C system, the down-hole TT﹠C system is accepted the data that MWD/LWD records, the comparison instrument front default hole trajectory data of going into the well, TT﹠C system is sent instruction control 3-position 4-way electromagnetic switch valve events, hydraulic oil enters oil cylinder, cylinder action, displacement transducer records displacement data and feeds back to microprocessor in the oil cylinder, after oil cylinder arrives assigned address, the 3-position 4-way solenoid operated directional valve is got back to meta under the control of TT﹠C system, the hydraulic lock locking cylinder, at this moment, be formed centrally an eccentric throw in power transmission shaft and the borehole wall, realize directed eccentric.The guiding push arm is equivalent to controllable eccentric stabilizer, and the guiding push arm combines with the lower stabilizer of nearly bit, and in conjunction with lever principle, the eccentric force of executing agency under the pressure of the drill effect passes to drill bit by lower stabilizer, with the nearly bit guiding of implementation tool.When the hole angle that recovers to preset and azimuth, after well is got back on the default track, the down-hole TT﹠C system is sent instruction, the 3-position 4-way solenoid operated directional valve oppositely commutates, and oil cylinder is under the effect of hydraulic oil, under the detection of displacement transducer, oil cylinder is got back to initial position, this moment, drill bit was concentric with well, and four groups of guiding push arms still contact with the borehole wall, are equivalent to stabilizer.In a kind of automatic feedback closed-loop control of down-hole formation, improve the control accuracy of well track like this, also saved the drillng operation time.
Although the utility model has only exemplified a kind of embodiment of horizontal orientation well, those skilled in the art can also expect the embodiment of multi-branched well, extended reach well, herein no longer detailed act.
Claims (5)
1. a shale gas exploitation is used guide drilling tool, comprise helicoid hydraulic motor, power transmission shaft, hydraulic system, fairlead and be enclosed within the outer shell of helicoid hydraulic motor, the helicoid hydraulic motor upper end is connected with drill collar, the helicoid hydraulic motor lower end is connected with power transmission shaft, the power transmission shaft lower end is connected with drill bit by lower stabilizer, shell is connected with fairlead, described fairlead is sleeved on outside the power transmission shaft, fairlead upper end inner chamber is installed on upper bearing (metal), the lower end inner chamber is installed on lower bearing, described hydraulic system comprises plunger displacement pump, solenoid operated directional valve, be installed on TT﹠C system on the fairlead, solenoid operated directional valve, it is characterized in that being provided with 4 oil cylinders parallel with axial direction in the lower end of fairlead periphery, 4 oil cylinders are mutually 90 ° and are distributed on the fairlead, per 2 oil cylinders of 180 ° of being separated by consist of a pair of reverse sync oil cylinder, form two pairs of reverse sync oil cylinders, on fairlead, be provided with 4 guiding push arms corresponding to 4 oil cylinders, one end of described guiding push arm is hinged on the fairlead, the tailpiece of the piston rod of described 4 oil cylinders by the other end configuration of vertebra piece with the guiding push arm, consists of adjustable upper stabilizer respectively.
2. a kind of shale gas exploitation according to claim 1 is used guide drilling tool, the piston rod that it is characterized in that described four oil cylinders all is connected with the conical surface of vertebra piece, wherein, per two rod chambers in the every pair of reverse sync oil cylinder are connected, and per two rodless cavities are connected with solenoid operated directional valve respectively by hydraulic lock.
3. a kind of shale gas exploitation according to claim 2 is used guide drilling tool, it is characterized in that being installed in each oil cylinder the displacement transducer that can control the oil cylinder displacement, described displacement transducer can feed back to TT﹠C system with the oil cylinder displacement data that detects.
4. a kind of shale gas exploitation according to claim 3 is used guide drilling tool, it is characterized in that described plunger displacement pump is axial plunger pump, axial plunger pump comprises swash plate, piston shoes, plunger, cylinder body, joins oil clot, axial plunger pump is installed between shell and the power transmission shaft, and the cylinder body of plunger displacement pump is connected with power transmission shaft by spline.
5. guide drilling tool is used in a kind of shale gas exploitation according to claim 1 and 2, it is characterized in that described solenoid operated directional valve is the 3-position 4-way solenoid operated directional valve, and Median Function is the Y type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220248888 CN202689929U (en) | 2012-05-30 | 2012-05-30 | Oriented drilling tool for shale gas development |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220248888 CN202689929U (en) | 2012-05-30 | 2012-05-30 | Oriented drilling tool for shale gas development |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202689929U true CN202689929U (en) | 2013-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220248888 Expired - Lifetime CN202689929U (en) | 2012-05-30 | 2012-05-30 | Oriented drilling tool for shale gas development |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202689929U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704841A (en) * | 2012-05-30 | 2012-10-03 | 中国石油化工集团公司 | Guide drilling tool for developing shale gas |
| CN108266130A (en) * | 2017-12-27 | 2018-07-10 | 中国石油集团长城钻探工程有限公司 | Assist steerable drilling drilling rod and rotary steerable drilling device |
| CN110578469A (en) * | 2019-09-27 | 2019-12-17 | 重庆科技学院 | Drilling tool extending in casing |
-
2012
- 2012-05-30 CN CN 201220248888 patent/CN202689929U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704841A (en) * | 2012-05-30 | 2012-10-03 | 中国石油化工集团公司 | Guide drilling tool for developing shale gas |
| CN102704841B (en) * | 2012-05-30 | 2014-09-10 | 中国石油化工集团公司 | Guide drilling tool for developing shale gas |
| CN108266130A (en) * | 2017-12-27 | 2018-07-10 | 中国石油集团长城钻探工程有限公司 | Assist steerable drilling drilling rod and rotary steerable drilling device |
| CN110578469A (en) * | 2019-09-27 | 2019-12-17 | 重庆科技学院 | Drilling tool extending in casing |
| CN110578469B (en) * | 2019-09-27 | 2024-03-22 | 重庆科技学院 | Extension drilling tool in sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SINOPEC PETROLEUM ENGINEERING MACHINERY CO., LTD. Free format text: FORMER OWNER: SINOPEC GROUP Effective date: 20150330 |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100728 CHAOYANG, BEIJING TO: 430223 WUHAN, HUBEI PROVINCE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 430223, Hubei, East Lake province Wuhan New Technology Development Zone 77 Optics Valley Avenue, Optics Valley finance port, block A2, 12 Patentee after: Sinopec Petroleum Engineering Machinery Co.,Ltd. Patentee after: PERTOLEUM MACHINERY RESEARCH INSTITUTE OF SINOPEC OILFIELD EQUIPMENT Corp. Address before: 430223, Hubei, East Lake province Wuhan New Technology Development Zone 77 Optics Valley Avenue, Optics Valley finance port, block A2, 12 Patentee before: Sinopec Petroleum Engineering Machinery Co.,Ltd. Patentee before: PETROLEUM MACHINERY RESEARCH INSTITUTE OF JIANGHAN PETROLEUM ADMINISTRATION BUREAU, CHINA PETROCHEMICAL Corp. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20150330 Address after: 430223, Hubei, East Lake province Wuhan New Technology Development Zone 77 Optics Valley Avenue, Optics Valley finance port, block A2, 12 Patentee after: Sinopec Petroleum Engineering Machinery Co.,Ltd. Patentee after: PETROLEUM MACHINERY RESEARCH INSTITUTE OF JIANGHAN PETROLEUM ADMINISTRATION BUREAU, CHINA PETROCHEMICAL Corp. Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: CHINA PETROLEUM & CHEMICAL Corp. Patentee before: PETROLEUM MACHINERY RESEARCH INSTITUTE OF JIANGHAN PETROLEUM ADMINISTRATION BUREAU, CHINA PETROCHEMICAL Corp. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170919 Address after: 430223 Hubei, East Lake New Technology Development Zone, Optics Valley Road, No. 77,, financial port, A2 Co-patentee after: SINOPEC OILFIELD EQUIPMENT Corp. Patentee after: SINOPEC OILFIELD EQUIPMENT CORPORATION INSTITUTE Address before: 430223, Hubei, East Lake province Wuhan New Technology Development Zone 77 Optics Valley Avenue, Optics Valley finance port, block A2, 12 Co-patentee before: PERTOLEUM MACHINERY RESEARCH INSTITUTE OF SINOPEC OILFIELD EQUIPMENT Corp. Patentee before: Sinopec Petroleum Engineering Machinery Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |