CN114016913B - Directional guiding nipple joint offset adjusting device structure of rotary guiding drilling tool - Google Patents
Directional guiding nipple joint offset adjusting device structure of rotary guiding drilling tool Download PDFInfo
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- CN114016913B CN114016913B CN202111283916.9A CN202111283916A CN114016913B CN 114016913 B CN114016913 B CN 114016913B CN 202111283916 A CN202111283916 A CN 202111283916A CN 114016913 B CN114016913 B CN 114016913B
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- drilling tool
- drill
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- bias
- tool body
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- 238000005553 drilling Methods 0.000 title claims abstract description 87
- 210000002445 nipple Anatomy 0.000 title claims description 10
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000033001 locomotion Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- 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
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- 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
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
-
- 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
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
-
- 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
- E21B45/00—Measuring the drilling time or rate of penetration
-
- 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
- E21B7/061—Deflecting the direction of boreholes the tool shaft advancing relative to a guide, e.g. a curved tube or a whipstock
-
- 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
- E21B7/064—Deflecting the direction of boreholes specially adapted drill bits therefor
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The invention discloses a directional guiding pup joint offset adjusting device structure of a rotary guiding drilling tool, which comprises a drilling rod, wherein the tail end of the drilling rod is connected with a rotary guiding drilling tool body, a measuring and controlling module, a steering motor, an offset adjusting mechanism and a universal device are sequentially arranged in the rotary guiding drilling tool body from top to bottom, and the tail end of the universal device is connected with a drill bit through a mandrel. When the rotary guiding drilling tool body drills in a guiding way, the first offset adjusting motor and the second offset adjusting motor of the offset adjusting mechanism are matched and started, so that an included angle is formed between the central shaft of the drill bit and the central shaft of the rotary guiding drilling tool body. The rotary guiding drilling tool body detects the self rotating speed through a rotating speed sensor in the measuring and controlling module and controls the steering motor to rotate anticlockwise at the same speed through the control module in the measuring and controlling module. The offset adjusting device eliminates the reaming effect of the existing directional rotary guiding tool during drilling, improves the drilling efficiency and has extremely high popularization value.
Description
Technical Field
The invention relates to the technical field of petroleum exploitation, in particular to a directional guiding nipple bias adjusting device structure of a rotary guiding drilling tool.
Background
In the directional well operation in the oil exploitation process, in order to control the drilling direction of the drill bit, according to the well track design scheme, the directional well drilling operation such as inclination increasing, inclination decreasing, torsion direction and the like needs to be performed in construction. Typically, the steerable drilling operation is accomplished using a combination of MWD and drilling motor. In the pilot drilling operation process, the whole drilling tool cannot rotate, the transmission mechanism and the well wall are in static friction, so that the drill bit is often decompressed, the drilling speed is seriously influenced, and the drilling cost is increased. The drilling sticking is caused more seriously, the whole drilling tool cannot be taken out, the well bore is scrapped, and the economic loss is serious.
In this context, rotary steerable drilling systems have developed that generally include a drill rig disposed above an oil well and a rotary steerable drilling tool disposed below for drilling, the drill rig being drivingly connected to a bit shaft on the rotary steerable drilling tool by a flexible drive shaft to transmit torque to the bit shaft, the bit shaft driving the drill bit to drill. The rotary steerable tool controls the direction of movement of the drill bit during drilling.
Those skilled in the art of rotary steerable drilling have devised a variety of mechanical configurations and control schemes to achieve desired movement trajectories for the drill bit. There are typically three ways, push-against rotary steerable tools, directional rotary steerable tools, and compound rotary steerable tools, respectively. The directional rotary guiding tool and the composite rotary guiding tool have reaming motions in the rotary drilling working process of the directional rotary guiding tool, which is not beneficial to high-speed working.
Disclosure of Invention
The invention aims to provide a directional guiding pup joint offset adjusting device structure of a rotary guiding drilling tool, which aims to solve the problems that in the prior art, in the rotary drilling working process, a directional rotary guiding tool and a composite rotary guiding tool have reaming motions, and are not beneficial to high-speed working.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides a directional direction nipple joint offset adjustment device structure of rotatory direction drilling tool, includes the drilling rod, the drilling rod end-to-end connection has rotatory direction drilling tool body, inside measuring and control module, steering motor, offset adjustment mechanism and the universal device of having set gradually from top to bottom of rotatory direction drilling tool body, the universal device end is connected with the drill bit through the dabber.
Furthermore, the mandrel inside the bias adjustment mechanism is divided into 3 sections, namely a first section of the bias mechanism, a second section of the bias mechanism and a third section of the bias mechanism, the outer sides of the first section of the bias mechanism and the second section of the bias mechanism are respectively connected with a first bias adjustment motor and a second bias adjustment motor through connecting pieces, the driving end of the first bias adjustment motor is connected with a first pinion, and the driving end of the second bias adjustment motor is connected with a second pinion. The first bias adjustment motor and the second bias adjustment motor are permanent magnet synchronous motors.
Furthermore, the outer sides of the first pinion and the second pinion are respectively meshed with a large gear, and the large gears are respectively arranged at the joint of the first section of the biasing mechanism and the second section of the biasing mechanism and the joint of the second section of the biasing mechanism and the third section of the biasing mechanism.
Further, the internal mandrel of the bias adjusting mechanism is connected to the driving end of the steering motor.
Furthermore, drill collars are arranged on the outer sides of the rotary guide drilling tool body and the universal device, and the drill collars on the outer sides of the rotary guide drilling tool body and the universal device are independent drill collars or integrated drill collars.
Furthermore, the drill rod is matched with a drill collar on the outer side of the rotary guiding drilling tool body to connect the rotary guiding drilling tool body to the driving end of the drilling machine.
Further, the universal device is coaxially connected with the rotary guiding drilling tool body.
Further, the mandrel inside the universal device is directly connected with the drill bit through threads.
Further, the drill bit includes, but is not limited to, a gear type drill bit, a PDC diamond drill bit, or an eccentric drill bit.
Furthermore, the drill collar is made of high-strength alloy steel, the surface of the drill collar is covered with a wear-resistant coating, the universal device is made of high-strength alloy steel, and the surface of the universal device is subjected to wear-resistant treatment.
Further, the measuring and controlling module comprises a rotating speed sensor and a controlling module.
Compared with the prior art, the invention has the beneficial effects that:
1. The bias adjusting mechanism of the rotary steering drilling tool has reasonable design and simple structure and has extremely high popularization value.
2. When the rotary steering drilling tool body rotates to drill, the first offset adjusting motor and the second offset adjusting motor of the offset adjusting mechanism are matched to be started, so that the first section of the offset mechanism, the second section of the offset mechanism and the third section of the offset mechanism are adjusted to coincide with the central axis of the drill collar, namely the central axis of the drill bit coincides with the central axis of the drill collar, and the drill rod rotates clockwise, thereby completing rotary drilling.
3. When the rotary guiding drilling tool body drills in a guiding way, the first offset adjusting motor and the second offset adjusting motor of the offset adjusting mechanism are matched and started, so that an included angle is formed between the central shaft of the drill bit and the central shaft of the rotary guiding drilling tool body. The rotary guiding drilling tool body detects the self rotating speed through a rotating speed sensor in the measuring and controlling module and controls the steering motor to rotate anticlockwise at the same speed through the control module in the measuring and controlling module. At this time, the drill bit rotates clockwise around the central axis of the drill bit, and the central axis of the drill bit is fixed relative to the ground direction, thereby completing the pilot drilling.
4. Through the use of the rotary steering drilling tool body in the pit, the weight and torque of the drill collar or the drill rod can be transmitted to the drill bit in a rotary drilling state or a directional drilling state, so that the rotating speed is increased, the drilling cost is reduced, and the probability of drilling jamming is reduced.
5. Due to the use of the offset adjusting mechanism, during rotary drilling, the reaming effect of the existing directional rotary guiding tool during drilling is eliminated, and the drilling efficiency is improved.
Drawings
FIG. 1 is a schematic view of a mounting structure according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a bias adjustment device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an opening bias according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an opening bias adjustment device according to an embodiment of the present invention;
FIG. 5 is a schematic view showing the movement of the drill guide according to one embodiment of the present invention;
the marks in the figure: 1-a drill rod; 2-rotationally guiding the drill body; 3-a drill bit; 4-a measurement and control module; 5-steering motor; 6-a bias adjustment mechanism; 61-a first section of the biasing mechanism; 62-a second section of the biasing mechanism; 63—a third section of the biasing mechanism; 64-a first bias adjustment motor; 65-a first pinion; 66-a second bias adjustment motor; 67-a second pinion; 7-universal device.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-5, the present invention provides a technical solution:
the utility model provides a directional direction nipple joint offset adjustment device structure of rotatory direction drilling tool, includes drilling rod 1, and drilling rod 1 end-to-end connection has rotatory direction drilling tool body 2, and inside measuring and control module 4, steering motor 5, offset adjustment mechanism 6 and universal device 7 have been set gradually from top to bottom to rotatory direction drilling tool body 2, and universal device 7 end is connected with drill bit 3 through the dabber.
In the invention, a mandrel in the bias adjustment mechanism 6 is divided into 3 sections, namely a first bias mechanism section 61, a second bias mechanism section 62 and a third bias mechanism section 63, the outer sides of the first bias mechanism section 61 and the second bias mechanism section 62 are respectively connected with a first bias adjustment motor 64 and a second bias adjustment motor 66 through connecting pieces, the driving end of the first bias adjustment motor 64 is connected with a first pinion 65, and the driving end of the second bias adjustment motor 66 is connected with a second pinion 67.
In the invention, the outer sides of the first pinion 65 and the second pinion 67 are respectively meshed with a large gear, and the large gears are respectively arranged at the connection part of the first joint 61 of the biasing mechanism and the second joint 62 of the biasing mechanism and the connection part of the second joint 62 of the biasing mechanism and the third joint 63 of the biasing mechanism.
In the invention, an internal mandrel of the offset adjusting mechanism 6 is connected to the driving end of the steering motor 5.
In the invention, drill collars are arranged on the outer sides of the rotary guiding drilling tool body 2 and the universal device 7, and the drill collars on the outer sides of the rotary guiding drilling tool body 2 and the universal device 7 are independent drill collars or integrated drill collars.
In the invention, a drill rod 1 is matched with a drill collar on the outer side of a rotary guiding drilling tool body 2 to connect the rotary guiding drilling tool body 2 to the driving end of a drilling machine.
In the present invention, the universal device 7 is coaxially connected with the rotary steerable drilling tool body 2.
In the invention, the mandrel inside the universal device 7 is directly connected with the drill bit 3 through threads.
In the present invention, the drill bit 3 includes, but is not limited to, a gear type drill bit, a PDC diamond drill bit, or an eccentric drill bit.
In the invention, the drill collar is made of high-strength alloy steel, and the surface of the drill collar is covered with a wear-resistant coating.
In the invention, the universal device 7 is made of high-strength alloy steel, and the surface of the universal device 7 is subjected to wear-resistant treatment.
In the invention, the measuring and controlling module 4 comprises a rotation speed sensor and a controller, wherein the rotation speed sensor is electrically connected with the controller, the rotation speed sensor is used for detecting the rotation speed of the rotary steering drilling tool body 2, and the controller is used for controlling the rotation speed of the steering motor 5.
Working principle:
Fig. 5 shows the movement of the drill guide as seen from the surface. O 1 is the rotation axis of the drill collar, and O 2 is the rotation axis of the drill bit. ω 1 represents the rotation angular velocity of the drill collar, ω 3 represents the rotation angular velocity of the drill bit, and ω 2 represents the angular velocity of revolution of the drill bit rotation axis O 2 around O 1.
When the rotary guiding tool body 2 rotates to drill, the drill rod 1 rotates clockwise, and the offset adjusting mechanism 6 controls the three-section mandrel, namely the central lines of the offset mechanism first section 61, the offset mechanism second section 62 and the offset mechanism third section 63 are coincident with the central line of the drill collar, as shown in fig. 1, and at the moment, the central line of the drill bit 3 is coincident with the central line of the drill collar.
When the rotary steering drilling tool body 2 steers, the first bias adjustment motor 64 and the second bias adjustment motor 66 of the bias adjustment mechanism 6 stop rotating to fixed positions, as shown in fig. 3, and at this time, the 3-section mandrel of the bias adjustment mechanism, the first section 61 of the bias mechanism, the second section 62 of the bias mechanism and the third section 63 of the bias mechanism are not on the same straight line, so that bias is generated, and an included angle is formed between the center line of the drill bit 3 and the center line of the drill collar. The angle between the center line of the drill bit 3 and the center line of the drill collar can be controlled by the rotating angle of the first offset adjustment motor 64 and the second offset adjustment motor 66, and can be adjusted in a certain range.
The drill rod 1 rotates clockwise to drive the rotary guiding drilling tool body 2 to rotate, and the drill bit 3 rotates along with the rotary guiding drilling tool 2 body. The rotation guiding drill body 2 detects its own rotation speed omega 1 through a rotation speed sensor, and the control module 4 controls the steering motor 5 to rotate anticlockwise (omega Motor with a motor housing ＝ω1) at a speed equal to the drill rod 1. The drill bit 3 is in a state of motion in which the drill bit 3 is rotated clockwise (ω 1＝ω3) about its central axis while being stationary (ω 2 =0) relative to the central axis of the drill.
The offset adjusting mechanism 6 eliminates the reaming effect generated by the rotary guiding tool body 2 during rotary drilling, and the method accelerates the drilling speed, reduces the drilling cost and further reduces the probability of drilling sticking.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (5)
1. The utility model provides a directional formula direction nipple joint offset adjustment device structure of rotatory direction drilling tool, includes drilling rod (1), its characterized in that: the end of the drill rod (1) is connected with a rotary guiding drilling tool body (2), a measuring and controlling module (4), a steering motor (5), a bias adjusting mechanism (6) and a universal device (7) are sequentially arranged in the rotary guiding drilling tool body (2) from top to bottom, and the end of the universal device (7) is connected with a drill bit (3) through a mandrel;
The mandrel in the bias adjusting mechanism (6) is divided into 3 sections, namely a first section (61) of the bias mechanism, a second section (62) of the bias mechanism and a third section (63) of the bias mechanism, wherein the outer sides of the first section (61) of the bias mechanism and the second section (62) of the bias mechanism are respectively connected with a first bias adjusting motor (64) and a second bias adjusting motor (66) through connecting pieces, the driving end of the first bias adjusting motor (64) is connected with a first pinion (65), and the driving end of the second bias adjusting motor (66) is connected with a second pinion (67);
The outsides of the first pinion (65) and the second pinion (67) are respectively meshed with a large gear, and the large gears are respectively arranged at the connection part of the first section (61) of the biasing mechanism and the second section (62) of the biasing mechanism and the connection part of the second section (62) of the biasing mechanism and the third section (63) of the biasing mechanism;
The internal mandrel of the offset adjusting mechanism (6) is connected with the driving end of the steering motor (5);
Drill collars are arranged on the outer sides of the rotary guiding drilling tool body (2) and the universal device (7), and the drill collars on the outer sides of the rotary guiding drilling tool body (2) and the universal device (7) are independent drill collars or integrated drill collars;
The drill rod (1) is matched with a drill collar on the outer side of the rotary guiding drilling tool body (2) to connect the rotary guiding drilling tool body (2) to the driving end of the drilling machine.
2. The structure of the directional pilot nipple bias adjustment device of the rotary pilot drill according to claim 1, wherein: the universal device (7) is coaxially connected with the rotary guiding drilling tool body (2).
3. The structure of the directional pilot nipple bias adjustment device of the rotary pilot drill according to claim 1, wherein: the mandrel inside the universal device (7) is directly connected with the drill bit (3) through threads.
4. A structure of a directional pilot nipple bias adjustment device for a rotary pilot drill according to claim 3, wherein: the drill bit (3) includes, but is not limited to, a gear type drill bit, a PDC diamond drill bit, or an eccentric drill bit.
5. The structure of the directional pilot nipple bias adjustment device of the rotary pilot drill according to claim 1, wherein: the drill collar is formed by high-strength alloy steel, the surface of the drill collar is covered with a wear-resistant coating, the universal device (7) is formed by the high-strength alloy steel, and the surface of the universal device (7) is subjected to wear-resistant treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111283916.9A CN114016913B (en) | 2021-11-01 | 2021-11-01 | Directional guiding nipple joint offset adjusting device structure of rotary guiding drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111283916.9A CN114016913B (en) | 2021-11-01 | 2021-11-01 | Directional guiding nipple joint offset adjusting device structure of rotary guiding drilling tool |
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| Publication Number | Publication Date |
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| CN114016913A CN114016913A (en) | 2022-02-08 |
| CN114016913B true CN114016913B (en) | 2024-07-19 |
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| CN202111283916.9A Active CN114016913B (en) | 2021-11-01 | 2021-11-01 | Directional guiding nipple joint offset adjusting device structure of rotary guiding drilling tool |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115726688B (en) * | 2022-11-29 | 2023-05-12 | 北京探矿工程研究所 | Drilling track holding device for flexible drilling tool |
| CN117780256B (en) * | 2023-12-29 | 2024-10-22 | 北京贝威通能源科技集团有限公司 | Bending tool for ultra-short radius horizontal well of coiled tubing drill |
| CN118241984B (en) * | 2024-04-26 | 2024-10-01 | 成都希能能源科技有限公司 | Directional rotary steering drilling tool |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113216844A (en) * | 2021-06-23 | 2021-08-06 | 西安石油大学 | Guide nipple of rotary guide drilling tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AU766588B2 (en) * | 1999-12-07 | 2003-10-16 | Schlumberger Holdings Limited | Actively controlled rotary steerable system and method for drilling wells |
| US6092610A (en) * | 1998-02-05 | 2000-07-25 | Schlumberger Technology Corporation | Actively controlled rotary steerable system and method for drilling wells |
| US6837315B2 (en) * | 2001-05-09 | 2005-01-04 | Schlumberger Technology Corporation | Rotary steerable drilling tool |
| CA2554147C (en) * | 2004-01-28 | 2009-12-22 | Halliburton Energy Services, Inc. | Rotary vector gear for use in rotary steerable tools |
| CN102900364B (en) * | 2012-09-20 | 2014-10-15 | 天津大学 | Static pointing type rotary guiding drilling tool |
| CN103334697B (en) * | 2013-07-24 | 2014-07-23 | 西南石油大学 | Rotary guide device of drilling tool and drilling tool |
| WO2015122918A1 (en) * | 2014-02-14 | 2015-08-20 | Halliburton Energy Services Inc. | Drilling shaft deflection device |
| WO2015127345A2 (en) * | 2014-02-24 | 2015-08-27 | Weatherford/Lamb, Inc. | Eccentric stabilizer for synchronous rotary steerable system |
| CN204827226U (en) * | 2015-06-03 | 2015-12-02 | 中国石油大学(北京) | Rotatory steerable drilling instrument of directional formula of developments |
| WO2017087490A1 (en) * | 2015-11-18 | 2017-05-26 | Tony Ross | Bearing section for a positive displacement mud motor for use in directional earth drilling |
| CN108505940B (en) * | 2017-02-28 | 2020-10-20 | 通用电气公司 | Composite rotary steerable drilling system and method |
| CN206753485U (en) * | 2017-04-14 | 2017-12-15 | 奥瑞拓能源科技股份有限公司 | Change the power set of drill bit movement |
| CN108678669A (en) * | 2018-07-24 | 2018-10-19 | 徐芝香 | There is the static directional type rotary steerable tool of packet |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113216844A (en) * | 2021-06-23 | 2021-08-06 | 西安石油大学 | Guide nipple of rotary guide drilling tool |
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