CN116624089A - Double-bending directional motor - Google Patents

Double-bending directional motor Download PDF

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Publication number
CN116624089A
CN116624089A CN202310873052.9A CN202310873052A CN116624089A CN 116624089 A CN116624089 A CN 116624089A CN 202310873052 A CN202310873052 A CN 202310873052A CN 116624089 A CN116624089 A CN 116624089A
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CN
China
Prior art keywords
output shaft
double
directional motor
bearing
outer shell
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Granted
Application number
CN202310873052.9A
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Chinese (zh)
Other versions
CN116624089B (en
Inventor
李文飞
陈沛沛
李翠
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Shandong Institute Of Petroleum And Chemical Engineering
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Shandong Institute Of Petroleum And Chemical Engineering
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Priority to CN202310873052.9A priority Critical patent/CN116624089B/en
Publication of CN116624089A publication Critical patent/CN116624089A/en
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Publication of CN116624089B publication Critical patent/CN116624089B/en
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/003—Bearing, sealing, lubricating details
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/006—Mechanical motion converting means, e.g. reduction gearings
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/02—Fluid rotary type drives
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E21B7/06—Deflecting the direction of boreholes
    • E21B7/068—Deflecting the direction of boreholes drilled by a down-hole drilling motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0604—Construction of the male part
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
    • H02K5/1737—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H02K7/086—Structural association with bearings radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Engineering & Computer Science (AREA)
  • Earth Drilling (AREA)

Abstract

The invention relates to the technical field of drilling, in particular to a double-bending directional motor. The motor comprises a stator and a rotor, wherein the stator and the rotor form positive-displacement cavity type cooperation, an outer shell is of a fixed bent angle structure, the rotor is connected to the upper portion of a universal shaft, a first output shaft is connected to the lower portion of the universal shaft, a joint sleeve is fixedly arranged on the lower portion of the first output shaft, a ball joint is fixedly arranged on the upper portion of a second output shaft, the ball joint is located in the joint sleeve, an included angle between a central shaft of the first output shaft and a central shaft of the upper portion of the outer shell is alpha 1, and an included angle between a central shaft of the second output shaft and a central shaft of the upper portion of the outer shell is alpha 2. The double-bending directional motor has the advantages of simple structural design, reliable performance, convenient operation and long service life, and is convenient for popularization and use in a large range.

Description

Double-bending directional motor
Technical Field
The invention relates to the technical field of drilling, in particular to a double-bending directional motor.
Background
The well with complex structures such as a horizontal well, a large displacement well and the like is the best mode for efficiently developing oil and gas reservoirs, and the underground single-bend directional motor is a main drilling tool adopted in the process of drilling the well with the complex structures in China. Through the development of many years, the technology aspect of the production and manufacture of the conventional single-bend directional motor is basically mature in China, the conventional single-bend directional motor is mainly formed by combining a screw motor and a transmission device with a bent shell, the distance between a bending point and a drill bit is 1.7-2.2 m, and the bending angle is 0.5 degree, 1 degree, 1.25 degree, 1.5 degree, 1.75 degree, 2 degrees, 3 degrees and the like so as to meet the requirements of different drilling slopes. In the drilling process, the deflecting well section is a sliding drilling mode, and the stable well section is a compound drilling mode.
The conventional single-turn directional motor has the following defects in the field application process:
(1) The distance from the bending point to the drill bit is longer, when in compound drilling, the larger the bending angle is, the larger the stress of the outer shell is, the bending shell is extremely easy to break, and the underground complex condition occurs;
(2) Other auxiliary tools cannot be connected near the drill bit end, and the deflecting characteristic of the directional motor is affected due to the fact that after the auxiliary tools are connected, the distance from the bending point to the drill bit is prolonged, so that the requirement of fine control of the drilling track cannot be met;
(3) The large-angle single-bend directional motor has strong deflecting capability, but can only be used for drilling in deflecting sections, can not perform compound drilling in inclined-stabilizing sections, and is extremely easy to break when forced compound drilling is performed, while the small-angle single-bend directional motor has high safety and reliability when the compound drilling is performed in the inclined-stabilizing sections, but has insufficient deflecting capability due to smaller bending angle, so that the technological requirements of the well track fine control of the well with a complex structure are difficult to be met, and the directional motors with different bending angles are frequently started and started to be drilled on site to adjust or control the well track, so that the drilling efficiency is seriously influenced, and the comprehensive drilling cost is greatly increased.
Aiming at the problems, the double-bending directional motor is urgently needed to be developed, has stronger deflecting capability, meets the technological requirements of sliding drilling in deflecting sections, can perform compound drilling, meets the safe and efficient technological requirements in stable inclined sections, thereby realizing the requirement of precisely controlling the well track of the well with a complex structure, has simple structure, reliable performance and convenient maintenance operation, and has important economic and social significance for improving the drilling efficiency of the well with the complex structure, improving the technical level of drilling technology for efficiently developing deep hydrocarbon reservoirs in China and enhancing the international competitiveness.
Disclosure of Invention
The technical problem to be solved by the invention is that the double-bending directional motor has the advantages of simple structural design, reliable performance, convenient operation and long service life, and is convenient for wide popularization and use.
In order to achieve the above purpose, the technical scheme provided by the invention is as follows:
the double-bending directional motor comprises a stator and a rotor, wherein the stator and the rotor form positive-displacement cavity type cooperation, the stator is installed in the upper part of an outer shell, the outer shell is of a fixed bent angle structure, the rotor is connected to the upper part of a universal shaft, a first output shaft is connected to the lower part of the universal shaft, a water passing hole is processed on the first output shaft, a joint sleeve is fixedly installed on the lower part of the first output shaft, a thrust bearing and a first spring are installed between the joint sleeve and the outer shell, a ball joint is fixedly installed on the upper part of a second output shaft, the ball joint is located in the joint sleeve, the ball joint is in universal connection with the joint sleeve through a bearing module, a sealing device is installed between the ball joint and the joint sleeve, a righting bearing is fixedly connected with a compression ring, the compression ring is fixed in a locking sleeve, the locking sleeve is fixedly connected with the outer shell, the included angle between the central shaft of the first output shaft and the upper part of the outer shell is alpha 1, and the included angle between the central shaft of the second output shaft and the upper part of the outer shell is alpha 2.
Specifically, the interior spherical surface of processing has in the joint cover lower part, and the bulb joint is located the interior spherical surface of joint cover, and processing has the mounting groove on the sphere of bulb joint, and the carrier module is installed in the mounting groove, and processing has the spout on the interior spherical surface of joint cover, and the carrier module can slide in the spout.
Specifically, the bearing modules are balls, and the number of the bearing modules is at least 3.
Specifically, an upper step is machined in the lower portion of the outer shell, a lower step is machined on the outer side of the joint sleeve below the upper step, a thrust bearing is located between the upper step and the lower step, and the thrust bearing is connected with the upper step through a first spring.
Specifically, the centralizing bearing is of an eccentric structure.
Specifically, wear-resisting blocks are arranged in the base holes of the thrust bearings, and second springs are arranged between the wear-resisting blocks and the bottoms of the base holes.
Compared with the prior art, the invention has the beneficial effects that:
1. in the drilling process, the outer shell of the double-bending directional motor is connected with the upper drilling tool assembly, the second output shaft is connected with the drill bit, after drilling fluid enters the double-bending directional motor, the rotor starts to rotate through the cooperation of the stator and the rotor, the first output shaft is driven by the universal shaft to rotate, the joint sleeve is driven by the first output shaft to rotate, rotation torque is transmitted to the ball joint through the sliding groove, the bearing module and the mounting groove, then the second output shaft is driven to rotate, the drill bit is driven to rotate for breaking rock, under the combined action of the centralizing bearing, the joint sleeve, the bearing module and the ball joint, a structural bent angle alpha 2 is formed between the second output shaft and the central shaft of the upper part of the outer shell, the bent angle alpha 2 is not changed along with the rotation of the second output shaft, and the bent angle alpha 1 is not changed along with the rotation of the first output shaft, so that a double-bent angle structure is formed.
2. The total bend angle of the double-bend directional motor is formed by combining alpha 1 and alpha 2, the guiding capability during sliding drilling is higher than that of a conventional small-bend directional motor, the safety and reliability during composite drilling are higher than those of a conventional large-bend directional motor, and the process requirements of one-trip drilling of a directional well are completely met.
3. The distance from two structural bending points of the double-bending directional motor to the drill bit is relatively short, alpha 1 and alpha 2 can be set according to requirements, and a near-drill bit measurement and control instrument can be installed between the double-bending directional motor and the drill bit on the basis, so that the purposes of guiding and drilling of a directional well and measuring the near-drill bit are achieved on the premise that the control precision of a well track and the drilling safety are not affected.
4. The double-bending directional motor has the advantages of simple structural design, reliable performance, convenient operation and long service life, and is convenient for popularization and use in a large range.
Drawings
Fig. 1 is a schematic diagram of a double-bending directional motor according to the present invention.
Fig. 2 is a schematic cross-sectional view of a thrust bearing of a double-bending directional motor according to the present invention.
Fig. 3 is an axial structure schematic diagram of a thrust bearing of a double-bending directional motor according to the present invention.
Fig. 4 is a schematic cross-sectional view of a joint sleeve in a double-bending directional motor according to the present invention.
Fig. 5 is a schematic cross-sectional view of a ball joint in a dual-bend directional motor according to the present invention.
The names of the parts in the drawings are as follows:
the device comprises a 1-outer shell, a 2-stator, a 3-rotor, a 4-universal shaft, a 5-water passing hole, a 6-first output shaft, a 7-first spring, an 8-thrust bearing, a 9-sealing device, a 10-bearing module, an 11-joint sleeve, a 12-locking sleeve, a 13-compression ring, a 14-centralizing bearing, a 15-second output shaft, a 16-wear-resisting block, a 17-second spring, a 18-sliding groove, a 19-ball joint, a 20-mounting groove, a 21-upper step, a 22-lower step and a 23-inner spherical surface.
Detailed Description
As shown in fig. 1 to 5, the double-bending directional motor comprises a stator 2 and a rotor 3, wherein the stator 2 and the rotor 3 form positive-displacement cavity type cooperation.
The stator 2 is installed in shell 1 upper portion, and shell 1 is fixed bent angle structure, and rotor 3 connects the upper portion at cardan shaft 4, and first output shaft 6 is connected in the lower part of cardan shaft 4, and processing has water hole 5 on the first output shaft 6, and the lower part fixed mounting of first output shaft 6 has joint cover 11.
An upper step 21 is machined in the lower portion of the outer shell 1, a lower step 22 is machined on the outer side of the joint sleeve 11 below the upper step 21, a thrust bearing 8 is located between the upper step 21 and the lower step 22, and the thrust bearing 8 is connected with the upper step 21 through a first spring 7. The wear-resisting block 16 is arranged in a base hole of the thrust bearing 8, the second spring 17 is arranged between the wear-resisting block 16 and the bottom of the base hole, the ball joint 19 is fixedly arranged on the upper portion of the second output shaft 15, the ball joint 19 is positioned in the joint sleeve 11, and the ball joint 19 and the joint sleeve 11 are connected in a universal mode through the bearing module 10.
The bearing modules 10 are balls, and the number of the bearing modules 10 is at least 3.
An inner spherical surface 23 is machined in the lower portion of the joint sleeve 11, the ball joint 19 is located in the inner spherical surface 23 of the joint sleeve 11, a mounting groove 20 is machined in the spherical surface of the ball joint 19, the bearing module 10 is mounted in the mounting groove 20, a sliding groove 18 is machined in the inner spherical surface 23 of the joint sleeve 11, and the bearing module 10 can slide in the sliding groove 18.
A sealing device 9 is arranged between the ball joint 19 and the joint sleeve 11, a centralizing bearing 14 is arranged between the second output shaft 15 and the outer shell 1, and the centralizing bearing 14 is of an eccentric structure.
The centralizing bearing 14 is fixedly connected with the pressing ring 13, the pressing ring 13 is fixed in the locking sleeve 12, and the locking sleeve 12 is fixedly connected with the outer shell 1.
The angle between the central axis of the first output shaft 6 and the central axis of the upper part of the outer casing 1 is alpha 1, and the angle between the central axis of the second output shaft 15 and the central axis of the upper part of the outer casing 1 is alpha 2.
In the drilling process, an outer shell 1 of the double-bending directional motor is connected with an upper drilling tool assembly, a second output shaft 15 is connected with a drill bit, after drilling fluid enters the double-bending directional motor, the rotor 3 starts to rotate through the cooperation of the stator 2 and the rotor 3, the first output shaft 6 is driven to rotate through the universal shaft 4, the joint sleeve 11 is driven to rotate by the first output shaft 6, rotational torque is transmitted to the ball joint 19 through the sliding groove 18, the bearing module 10 and the mounting groove 20, and then the second output shaft 15 is driven to rotate, so that the drill bit is driven to rotate to break rock.
Under the combined action of the centralizing bearing 14, the joint sleeve 11, the bearing module 10 and the ball joint 19, a structural bent angle alpha 2 is formed between the second output shaft 15 and the central shaft of the outer shell 1, and the bent angle alpha 2 is not changed along with the rotation of the second output shaft 15. The structural angle α1 formed between the central axis of the first output shaft 6 and the central axis of the outer housing 1 does not change with the rotation of the first output shaft 6. Thereby forming a double corner structure.
The total bend angle of the double-bend directional motor is formed by combining alpha 1 and alpha 2, the guiding capability during sliding drilling is higher than that of a conventional small-bend directional motor, the safety and reliability during composite drilling are higher than those of a conventional large-bend directional motor, and the process requirements of one-trip drilling of a directional well are completely met.
The distance from the two structural bending points of the double-bending directional motor to the drill bit is relatively short, and alpha 1 and alpha 2 can be set according to requirements. On the basis, a near-bit measurement and control instrument can be installed between the double-bend directional motor and the drill bit, so that the directional well guiding drilling and near-bit measurement can be performed on the premise that the well track control precision and the drilling safety are not affected.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims (6)

1. The double-bending directional motor comprises a stator (2) and a rotor (3), wherein the stator (2) and the rotor (3) form positive-displacement cavity type matching, the double-bending directional motor is characterized in that the stator (2) is installed in the upper part of an outer shell (1), the outer shell (1) is of a fixed bent angle structure, the rotor (3) is connected to the upper part of a universal shaft (4), a first output shaft (6) is connected to the lower part of the universal shaft (4), a water passing hole (5) is processed on the first output shaft (6), a joint sleeve (11) is fixedly installed on the lower part of the first output shaft (6), a thrust bearing (8) and a first spring (7) are installed between the joint sleeve (11) and the outer shell (1), a ball joint (19) is fixedly installed on the upper part of a second output shaft (15), the ball joint (19) is located in the joint sleeve (11), the ball joint (19) is in universal connection with the joint sleeve (11) through a bearing module (10), a sealing device (9) is installed between the ball joint (19) and the joint sleeve (11), a righting bearing (14) is fixedly connected with a compression ring (12) between the second output shaft (15) and the outer shell (1), a righting bearing (14) is fixedly connected with a compression ring (12) in the compression ring (13), the included angle between the central axis of the first output shaft (6) and the central axis of the upper part of the outer shell (1) is alpha 1, and the included angle between the central axis of the second output shaft (15) and the central axis of the upper part of the outer shell (1) is alpha 2.
2. The double-bending directional motor according to claim 1, wherein an inner spherical surface (23) is machined in the lower portion of the joint sleeve (11), the ball joint (19) is located in the inner spherical surface (23) of the joint sleeve (11), a mounting groove (20) is machined in the spherical surface of the ball joint (19), the bearing module (10) is mounted in the mounting groove (20), a sliding groove (18) is machined in the inner spherical surface (23) of the joint sleeve (11), and the bearing module (10) can slide in the sliding groove (18).
3. The double-bending directional motor according to claim 2, characterized in that the bearing modules (10) are balls, the number of bearing modules (10) being at least 3.
4. The double-bending directional motor according to claim 1, wherein an upper step (21) is machined in the lower portion of the outer housing (1), a lower step (22) is machined on the outer side of the joint sleeve (11) below the upper step (21), a thrust bearing (8) is located between the upper step (21) and the lower step (22), and the thrust bearing (8) is connected with the upper step (21) through a first spring (7).
5. The double-bend directional motor according to claim 1, characterized in that the righting bearing (14) is of eccentric construction.
6. The double-bending directional motor according to claim 1, wherein a wear-resistant block (16) is arranged in the base hole of the thrust bearing (8), and a second spring (17) is arranged between the wear-resistant block (16) and the bottom of the base hole.
CN202310873052.9A 2023-07-17 2023-07-17 Double-bending directional motor Active CN116624089B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2094195A1 (en) * 1992-04-16 1993-10-17 Jay M. Eppink Downhole motor having a flexible connecting rod
CN204040903U (en) * 2014-09-05 2014-12-24 山东东旺石油装备有限公司 A kind of two curved housing steering drilling tool
CN104411912A (en) * 2012-05-18 2015-03-11 史密斯国际有限公司 Eccentric adjustment coupling for mud motors
CN105525876A (en) * 2014-09-28 2016-04-27 中国石油化工集团公司 While-drilling remote control type multi-stage bent-angle-adjustable screw drilling tool
CN105525875A (en) * 2014-09-28 2016-04-27 中国石油化工集团公司 Rotary steering well drilling device
CN106930685A (en) * 2015-12-29 2017-07-07 中石化石油工程技术服务有限公司 Concentric friction speed directional well drilling device in the same direction
CN206530288U (en) * 2016-12-24 2017-09-29 中石化石油工程技术服务有限公司 The high build angle rate drilling well transmission device of small bend angle
CN107676040A (en) * 2017-10-12 2018-02-09 中国石油天然气股份有限公司 Shell guide type deflecting drilling tool
CN211397453U (en) * 2020-01-15 2020-09-01 大庆井泰石油工程技术股份有限公司 Double-bending screw drilling tool
CN112832683A (en) * 2021-02-20 2021-05-25 四川安普尔能源科技有限公司 Flexible hinged screw drill
CN216341966U (en) * 2021-01-11 2022-04-19 中鑫恒久(天津)石油科技有限公司 Flexible double-bending screw drill
CN114439466A (en) * 2022-01-27 2022-05-06 北京探矿工程研究所 Power drilling tool bearing joint with inclination measurement while drilling and guiding functions

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2094195A1 (en) * 1992-04-16 1993-10-17 Jay M. Eppink Downhole motor having a flexible connecting rod
CN104411912A (en) * 2012-05-18 2015-03-11 史密斯国际有限公司 Eccentric adjustment coupling for mud motors
CN204040903U (en) * 2014-09-05 2014-12-24 山东东旺石油装备有限公司 A kind of two curved housing steering drilling tool
CN105525876A (en) * 2014-09-28 2016-04-27 中国石油化工集团公司 While-drilling remote control type multi-stage bent-angle-adjustable screw drilling tool
CN105525875A (en) * 2014-09-28 2016-04-27 中国石油化工集团公司 Rotary steering well drilling device
CN106930685A (en) * 2015-12-29 2017-07-07 中石化石油工程技术服务有限公司 Concentric friction speed directional well drilling device in the same direction
CN206530288U (en) * 2016-12-24 2017-09-29 中石化石油工程技术服务有限公司 The high build angle rate drilling well transmission device of small bend angle
CN107676040A (en) * 2017-10-12 2018-02-09 中国石油天然气股份有限公司 Shell guide type deflecting drilling tool
CN211397453U (en) * 2020-01-15 2020-09-01 大庆井泰石油工程技术股份有限公司 Double-bending screw drilling tool
CN216341966U (en) * 2021-01-11 2022-04-19 中鑫恒久(天津)石油科技有限公司 Flexible double-bending screw drill
CN112832683A (en) * 2021-02-20 2021-05-25 四川安普尔能源科技有限公司 Flexible hinged screw drill
CN114439466A (en) * 2022-01-27 2022-05-06 北京探矿工程研究所 Power drilling tool bearing joint with inclination measurement while drilling and guiding functions

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