CN107060638B - Power device for changing drill bit movement - Google Patents
Power device for changing drill bit movement Download PDFInfo
- Publication number
- CN107060638B CN107060638B CN201710243918.2A CN201710243918A CN107060638B CN 107060638 B CN107060638 B CN 107060638B CN 201710243918 A CN201710243918 A CN 201710243918A CN 107060638 B CN107060638 B CN 107060638B
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- Prior art keywords
- eccentric
- drill bit
- transmission shaft
- gear
- assembly
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- 230000033001 locomotion Effects 0.000 title claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims abstract description 48
- 238000005553 drilling Methods 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 239000011435 rock Substances 0.000 description 6
- 239000002131 composite material Substances 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
-
- 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
- E21B10/00—Drill bits
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
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- 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
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/2809—Toothed gearings for conveying rotary motion with gears having orbital motion with means for equalising the distribution of load on the planet-wheels
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- General Engineering & Computer Science (AREA)
- Earth Drilling (AREA)
- Retarders (AREA)
Abstract
The invention provides a power device for changing the movement of a drill bit, which is used for providing power for the drill bit of a screw drilling tool, and comprises a power assembly, a universal shaft assembly and a transmission shaft assembly which are sequentially connected, and also comprises an eccentric assembly connected with the transmission shaft assembly, wherein the eccentric assembly is connected with the drill bit so as to enable the drill bit to do planetary movement around the axis of a transmission shaft of the transmission shaft assembly; according to the power device provided by the embodiment of the invention, the eccentric assembly is arranged, so that the drill bit revolves at a certain rotation radius while rotating at a certain rotation speed, thereby forming compound motion, being convenient for expanding drilling holes during drilling, and enabling the drill bit not to be directional drilling during drilling, thereby improving drilling speed.
Description
Technical Field
The invention relates to the technical field of drilling, in particular to a power device for changing drill bit movement.
Background
Screw drilling tools are known to be volumetric downhole power tools that convert fluid pressure energy into mechanical energy using fluid as power. The working principle is that the drilling fluid pumped by the hydraulic pump flows through the bypass valve to enter the motor at higher pressure, a certain pressure difference is formed between the inlet and the outlet of the motor, the rotor is pushed to rotate around the axis of the stator, and the rotating speed and the torque are transmitted to the drill bit, so that the drilling operation is realized.
The screw drilling tool is widely applied to drilling, most of the existing screw drilling tools are directional drilling, the drilling speed of the directional drilling is low, and the main reason is that the drill rod of the directional drilling is not rotated, the drill bit can be driven to rotate through the screw drilling tool to complete rock breaking, and the linear speed of the drill bit, which is closer to the central position when the drill bit rotates to break the rock, is lower. Therefore, how to increase the drilling speed of the screw drilling tool becomes a problem to be solved.
Disclosure of Invention
The embodiment of the invention provides a power device for changing drill bit movement.
In order to achieve the above purpose, the embodiment of the present invention adopts the following technical scheme:
the power device for changing the movement of the drill bit is used for providing power for the drill bit of the screw drilling tool and comprises a power assembly, a universal shaft assembly and a transmission shaft assembly which are sequentially connected, and further comprises an eccentric assembly connected with the transmission shaft assembly, wherein the eccentric assembly is connected with the drill bit so that the drill bit performs planetary movement around the axis of a transmission shaft of the transmission shaft assembly.
Preferably, the eccentric assembly includes:
a first housing;
an eccentric shaft connected with one end of the transmission shaft;
the gear is sleeved on the eccentric shaft, a first eccentric distance is arranged between the wheel center of the gear and the axis of the transmission shaft, the gear revolves around the axis of the transmission shaft by taking the first eccentric distance as a rotation radius, and mutually meshed gear teeth are respectively arranged between the rim of the gear and the inner wall of the first shell so as to enable the gear to rotate while revolving;
the eccentric sleeve is arranged in the first shell, and a linkage mechanism is arranged between one end face of the eccentric sleeve and the gear so as to enable the eccentric sleeve to perform centering rotation along with the movement of the gear; the eccentricity of the eccentric sleeve is the same as the first eccentricity in length, and the eccentricity of the eccentric sleeve is the second eccentricity;
the rotary shaft is connected with the drill bit and is arranged in the inner hole, and the rotary shaft rotates along with the eccentric sleeve in a centering way and revolves around the axis of the transmission shaft by taking the second eccentric distance as a rotation radius; and
and the flexible piece is used for connecting the gear and the rotating shaft, so that the rotating shaft rotates along with the rotation of the gear.
Preferably, the interlocking mechanism includes:
a plurality of holes axially arranged on the shaft end surface of the gear, and
a plurality of struts which are arranged on one end face of the eccentric sleeve and are correspondingly penetrated in the holes one by one;
the outer wall of the support column is abutted with the inner wall of the hole, a third eccentric distance is arranged between the axis of the support column and the circle center of the hole, and the length of the third eccentric distance is the same as that of the first eccentric distance and the second eccentric distance.
Preferably, the holes are uniformly distributed around the center of the gear.
Preferably, the flexible member is a flexible rod, one end of the flexible rod is screwed with the rotating shaft, and the other end of the flexible rod is screwed with the eccentric shaft.
Preferably, the power assembly comprises a stator and a rotor arranged in an inner hole of the stator, a spiral cavity is arranged between the stator and the rotor, and the rotor rotates in the inner hole of the stator through drilling fluid pressed into the spiral cavity.
Preferably, the universal shaft assembly includes:
the rotor joint is connected with one end of the rotor joint;
one end of the connecting rod is connected with the other end of the rotor joint, and the other end of the connecting rod is connected with a water cap; and
the second shell is sleeved outside the rotor joint, the connecting rod and the water cap.
Preferably, at least two ends of the connecting rod are flexible, and the connecting rod is in interference fit with the water cap and two ends of the rotor joint.
Preferably, the transmission shaft assembly further comprises a radial bearing and an axial bearing sleeved on the transmission shaft, and one end of the transmission shaft is connected with the other end of the connecting rod through the water cap; the transmission shaft assembly further comprises a third shell sleeved outside the radial bearing and the axial bearing, one end of the third shell is connected with the second shell, and the other end of the third shell is connected with the first shell.
According to the power device for changing the movement of the drill bit, provided by the embodiment of the invention, the eccentric assembly is arranged, so that the drill bit revolves at a certain rotation radius while rotating at a certain rotation speed, thereby forming compound movement, being convenient for expanding drilling holes during drilling, and enabling the drill bit not to be directionally drilled during drilling, thereby improving drilling speed.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings that are required to be used in the embodiments of the present invention will be briefly described below. It is evident that the drawings described below are only some embodiments of the present invention and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a cross-sectional view of a power plant for modifying drill bit movement in accordance with an embodiment of the present invention;
FIG. 2 is a schematic view of section A-A of FIG. 1;
FIG. 3 is a schematic view of section B-B of FIG. 1.
1-power assembly 11-rotor 12-stator 2-universal shaft assembly 21-connecting rod 22-water cap 23-rotor joint 24-second shell 3-transmission shaft assembly 31-transmission shaft 311-eccentric shaft 32-radial bearing 33-axial bearing 34-third shell 4-eccentric assembly 41-gear 411-hole 42-flexible piece 43-rotating shaft 44-eccentric sleeve 441-strut 45-first shell M-drill bit.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Next, the present invention will be described in detail with reference to the drawings, which are only examples for convenience of illustration, and should not limit the scope of the present invention.
Fig. 1 is a cross-sectional view of a power device for changing the movement of a drill bit according to an embodiment of the present invention, referring to fig. 1, the present embodiment provides a power device for changing the movement of a drill bit, which is used for providing power to the drill bit of a screw drilling tool, the power device for changing the movement of a drill bit includes a power assembly 1, a cardan shaft assembly 2, a transmission shaft assembly 3, and an eccentric assembly 4, which are sequentially connected, the eccentric assembly 4 is connected with the drill bit M so as to make the drill bit M perform planetary motion around the axis of the transmission shaft 31 of the transmission shaft assembly 3, in this embodiment, the rotation speed and torque generated by the power assembly 1 are converted into fixed-axis rotation by the cardan shaft assembly 2, and are transmitted to the eccentric assembly 4 by the transmission shaft assembly 3, and the eccentric assembly 4 converts the fixed-axis rotation into planetary motion. According to the invention, the drill bit M is changed from simple rotation motion into planetary motion during rock breaking, namely, the drill bit M also has revolution while rotating, so that a composite well is formed, the speed of the composite well is 3-5 times that of directional well, the rock breaking speed of the drill bit M is greatly improved, and the well drilling cost is reduced.
Preferably, the eccentric assembly 4 includes a first housing 45, and an eccentric shaft 311 connected to one end of the transmission shaft 31, where the eccentric shaft 311 in this embodiment is screwed to the transmission shaft 31, and may be an integral unit; the eccentric assembly 4 further comprises a gear 41, which is sleeved on the eccentric shaft 311, a first eccentric distance is arranged between the center of the gear 41 and the axis of the transmission shaft 31, the gear 41 revolves around the axis of the transmission shaft 31 by taking the first eccentric distance as a rotation radius under the drive of the transmission shaft 31, and mutually meshed gear teeth are respectively arranged between the rim of the gear 41 and the inner wall of the first shell 45 so as to enable the gear 41 to rotate while revolving; the eccentric assembly 4 further comprises an eccentric sleeve 44, which is arranged in the first shell 45, wherein a linkage mechanism is arranged between one end surface of the eccentric sleeve 44 and the gear 41 so as to make the eccentric sleeve 44 perform centering rotation along with the movement of the gear 41; the eccentricity of the eccentric sleeve 44 is the same as the first eccentricity in length, the eccentricity of the eccentric sleeve is the second eccentricity, and the eccentricity of the eccentric sleeve 44 refers to the eccentricity between the axis of the eccentric sleeve 44 (i.e. the axis of the eccentric sleeve 44 itself) and the center of the inner hole of the eccentric sleeve 44; referring to fig. 3, the eccentric assembly 4 further includes a rotating shaft 43 connected to the drill M and disposed in an inner hole of the eccentric sleeve 44, so that the rotating shaft 43 rotates with the eccentric sleeve 44 in a centering manner, and revolves around an axis of the transmission shaft 31 with the second eccentric distance as a rotation radius, in this embodiment, the drill M and the rotating shaft 43 are in a clamped and screwed connection, and the eccentric assembly 4 further includes a flexible member 42 for connecting the gear 41 and the rotating shaft 43, so that the rotating shaft 43 rotates with the rotation of the gear 41.
In this embodiment, referring to fig. 2, one end of the transmission shaft 31 of the transmission shaft assembly 3 converts the centering rotation of the transmission shaft 31 into eccentric rotation by providing an eccentric shaft 311, a gear 41 sleeved on the eccentric shaft 311 revolves around the axis of the transmission shaft 31 with a first eccentric distance as a rotation radius, and gear teeth meshed with each other are provided between the rim of the gear 41 and the inner wall of the first casing 45, so that the gear 41 rotates while revolving, in this embodiment, the gear teeth are in the shape of the gear teeth as shown in fig. 2, and the modulus and the pressure angle of the gear teeth on the inner wall of the first casing 45 and the gear teeth on the rim of the gear 41 are respectively equal, that is, the two are respectively meshed as involute gears, and by adopting such a structure, the drill bit M revolves around the axis of the transmission shaft 31 with the first eccentric distance as the rotation radius at a certain rotation speed, thereby forming a compound motion, and being convenient for enlarging drilling during rock breaking, thereby improving the drilling speed.
Preferably, referring to fig. 1, the linkage mechanism includes a plurality of holes 411 formed along an axial direction of an axial end surface of the gear 41, and a plurality of struts 441 formed along an axial end surface of the eccentric sleeve 44 and penetrating the holes 411 in a one-to-one correspondence manner; the outer wall of the pillar 441 is abutted against the inner wall of the hole 411, a third eccentric distance is provided between the axis of the pillar 441 and the center of the hole 411, and the length of the third eccentric distance is the same as the lengths of the first eccentric distance and the second eccentric distance.
In this embodiment, the gear 41 performs planetary motion, and simultaneously, the plurality of holes 411 disposed on the axial end surface of the gear 41 also performs planetary motion together, the inner wall of the hole 411 abuts against the outer wall of the support post 441 of the eccentric sleeve 44 to drive the eccentric sleeve 44 to move, and a third eccentricity with the same length as the first eccentricity and the second eccentricity is provided between the axis of the support post 441 and the center of the circle of the hole 411 to offset the revolution of the hole 411, so that the rotation output by the eccentric sleeve 44 is converted into centering rotation, and the structure is more precise and better transmits torque and rotation speed.
Preferably, the holes 411 are uniformly distributed around the center of the gear 41, and it should be noted that, in this embodiment, the distance between the center of each hole 411 and the center of the gear 41 is the same, so that the torque and the rotation in each direction are more balanced.
Preferably, the flexible member 42 is a flexible rod, one end of the flexible rod is screwed with the rotating shaft 43, the other end of the flexible rod is screwed with the eccentric shaft 311, in this embodiment, the flexible rod mainly plays a role of a cardan shaft, the flexible rod may be supported by a titanium alloy material, and when the flexible rod rotates, stress from a radial direction or an axial direction is counteracted, so that a mechanism is prevented from rotating smoothly due to a size deviation, and it is to be noted that in this embodiment, the flexible member 42 may also be formed by arranging flexible connection members at two ends of the rigid rod, and the flexible member 42 may also be formed by arranging balls at two ends of the rigid rod, which may also adopt other structures that may play a role of a cardan shaft, and will not be repeated herein.
Preferably, referring to fig. 1, the power assembly 1 includes a stator 12 and a rotor 11 disposed in an inner hole of the stator 12, a spiral cavity is provided between the stator 12 and the rotor 11, and the rotor 11 is pressed into the spiral cavity by drilling fluid discharged from a hydraulic pump at a high pressure to rotate the rotor 11 in the inner hole of the stator 12.
In the above embodiment, specifically, the universal shaft assembly 2 includes a rotor joint 23, and one end of the rotor joint 23 is connected to the rotor 11; the universal shaft assembly 2 further comprises a connecting rod 21, one end of the connecting rod 21 is connected with the other end of the rotor joint 23, and the other end of the connecting rod 21 is connected with a water cap 22; the universal shaft assembly 2 further comprises a second shell 24, the second shell 24 is sleeved outside the rotor joint 23, the connecting rod 21 and the water cap 22, in this embodiment, the universal shaft assembly 2 converts rotation output by the rotor 11 into centering rotation and then outputs torque and rotation speed to the transmission shaft assembly 3, specifically, at least two ends of the connecting rod 21 are flexible, and the connecting rod 21 is in interference fit with the water cap 22 and two ends of the rotor joint 23.
Preferably, referring to fig. 1, in the above embodiment, the transmission shaft assembly 3 further includes a radial bearing 32 and an axial bearing 33 sleeved on the transmission shaft 31, where the radial bearing 32 is used to bear radial load, the axial bearing 33 is used to bear axial load, and one end of the transmission shaft 31 is connected to the other end of the connecting rod 21 through the water cap 22; the transmission shaft assembly 3 further includes a third casing 34 sleeved outside the radial bearing 32 and the axial bearing 33, one end of the third casing 34 is connected with the second casing 24, in this embodiment, the other end of the third casing 34 is connected with the first casing 45, in this embodiment, the third casing 34, the second casing 24, and the third casing 45 are used for separating the above structure from the rock layer on the inner wall of the borehole 411, so as to play a role in protection.
The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this invention will occur to those skilled in the art, and are intended to be within the spirit and scope of the invention.
Claims (8)
1. The power device is used for providing power for the drill bit of the screw drilling tool and comprises a power assembly, a universal shaft assembly and a transmission shaft assembly which are sequentially connected, and is characterized by further comprising an eccentric assembly connected with the transmission shaft assembly, wherein the eccentric assembly is connected with the drill bit so as to enable the drill bit to do planetary motion around the axis of a transmission shaft of the transmission shaft assembly;
the eccentric assembly includes:
a first housing;
an eccentric shaft connected with one end of the transmission shaft;
the gear is sleeved on the eccentric shaft, a first eccentric distance is arranged between the wheel center of the gear and the axis of the transmission shaft, the gear revolves around the axis of the transmission shaft by taking the first eccentric distance as a rotation radius, and mutually meshed gear teeth are respectively arranged between the rim of the gear and the inner wall of the first shell so as to enable the gear to rotate while revolving;
the eccentric sleeve is arranged in the first shell, and a linkage mechanism is arranged between one end face of the eccentric sleeve and the gear so as to enable the eccentric sleeve to perform centering rotation along with the movement of the gear; the eccentricity of the eccentric sleeve is the same as the first eccentricity in length, and the eccentricity of the eccentric sleeve is the second eccentricity;
the rotary shaft is connected with the drill bit and is arranged in the inner hole of the eccentric sleeve, and the rotary shaft rotates with the eccentric sleeve in a centering way and revolves around the axis of the transmission shaft by taking the second eccentric distance as a rotation radius; and
and the flexible piece is used for connecting the gear and the rotating shaft, so that the rotating shaft rotates along with the rotation of the gear.
2. The power device for changing drill bit movement of claim 1, wherein the linkage comprises:
a plurality of holes axially arranged on the shaft end surface of the gear, and
a plurality of struts which are arranged on one end face of the eccentric sleeve and are correspondingly penetrated in the holes one by one;
the outer wall of the support column is abutted with the inner wall of the hole, a third eccentric distance is arranged between the axis of the support column and the circle center of the hole, and the length of the third eccentric distance is the same as that of the first eccentric distance and the second eccentric distance.
3. The power device for varying the movement of a drill bit of claim 2, wherein each of said apertures is uniformly distributed about the center of said gear.
4. The power device for changing drill bit movement according to claim 2, wherein the flexible member is a flexible rod, one end of the flexible rod is screwed to the rotating shaft, and the other end of the flexible rod is screwed to the eccentric shaft.
5. The power unit for varying the movement of a drill bit according to any one of claims 1 to 4, wherein the power unit comprises a stator and a rotor disposed in an inner bore of the stator, the stator and the rotor having a helical cavity therebetween, the rotor being rotated in the inner bore of the stator by drilling fluid pressed into the helical cavity.
6. The power plant for modifying the motion of a drill bit of claim 5, wherein the cardan shaft assembly comprises:
the rotor joint is connected with one end of the rotor joint;
one end of the connecting rod is connected with the other end of the rotor joint, and the other end of the connecting rod is connected with a water cap; and
the second shell is sleeved outside the rotor joint, the connecting rod and the water cap.
7. The power device for changing drill bit movement of claim 6, wherein at least two ends of the connecting rod are flexible, and the connecting rod is in interference fit with both ends of the water cap and the rotor joint.
8. The power device for changing drill bit movement according to claim 6, wherein the transmission shaft assembly further comprises a radial bearing and an axial bearing sleeved on the transmission shaft, one end of the transmission shaft is connected with the other end of the connecting rod through the water cap; the transmission shaft assembly further comprises a third shell sleeved outside the radial bearing and the axial bearing, one end of the third shell is connected with the second shell, and the other end of the third shell is connected with the first shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710243918.2A CN107060638B (en) | 2017-04-14 | 2017-04-14 | Power device for changing drill bit movement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710243918.2A CN107060638B (en) | 2017-04-14 | 2017-04-14 | Power device for changing drill bit movement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107060638A CN107060638A (en) | 2017-08-18 |
| CN107060638B true CN107060638B (en) | 2023-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710243918.2A Active CN107060638B (en) | 2017-04-14 | 2017-04-14 | Power device for changing drill bit movement |
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| Country | Link |
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| CN (1) | CN107060638B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109396192B (en) * | 2018-11-20 | 2023-08-29 | 北京京诚瑞信长材工程技术有限公司 | Centering machine |
| CN110984845A (en) * | 2019-12-31 | 2020-04-10 | 中国石油集团川庆钻探工程有限公司 | Well drilling speed increasing method for changing bottom hole confining pressure distribution by middle energy accumulation |
| CN111594136B (en) * | 2020-04-28 | 2022-04-29 | 重庆科技学院 | Multifunctional power drilling tool experiment platform |
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| CA2383668A1 (en) * | 2001-05-09 | 2002-11-09 | Schlumberger Canada Limited | Rotary steerable drilling tool |
| CN101694149A (en) * | 2009-10-23 | 2010-04-14 | 杨天博 | Deep well drilling speed reducer and working method thereof |
| CN103410444A (en) * | 2013-07-19 | 2013-11-27 | 扬州天业石油机械有限公司 | Waterpower oscillator |
| CN104847257A (en) * | 2015-04-20 | 2015-08-19 | 江汉石油钻头股份有限公司 | Screw drill motor |
| CN205445460U (en) * | 2015-12-29 | 2016-08-10 | 中石化石油工程技术服务有限公司 | Rock device is broken to planet milling formula |
| CN106089024A (en) * | 2016-06-17 | 2016-11-09 | 中国海洋石油总公司 | A kind of torsion rushes motor |
| CN206035378U (en) * | 2016-08-29 | 2017-03-22 | 盐城市荣嘉机械制造有限公司 | Screw drilling tool |
| 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 |
-
2017
- 2017-04-14 CN CN201710243918.2A patent/CN107060638B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2383668A1 (en) * | 2001-05-09 | 2002-11-09 | Schlumberger Canada Limited | Rotary steerable drilling tool |
| CN101694149A (en) * | 2009-10-23 | 2010-04-14 | 杨天博 | Deep well drilling speed reducer and working method thereof |
| CN103410444A (en) * | 2013-07-19 | 2013-11-27 | 扬州天业石油机械有限公司 | Waterpower oscillator |
| CN104847257A (en) * | 2015-04-20 | 2015-08-19 | 江汉石油钻头股份有限公司 | Screw drill motor |
| CN205445460U (en) * | 2015-12-29 | 2016-08-10 | 中石化石油工程技术服务有限公司 | Rock device is broken to planet milling formula |
| CN106089024A (en) * | 2016-06-17 | 2016-11-09 | 中国海洋石油总公司 | A kind of torsion rushes motor |
| CN206035378U (en) * | 2016-08-29 | 2017-03-22 | 盐城市荣嘉机械制造有限公司 | Screw drilling tool |
| 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 |
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| CN107060638A (en) | 2017-08-18 |
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