CN116006093A - Anti-sticking drill pump-jamming nipple of underground power drilling tool - Google Patents
Anti-sticking drill pump-jamming nipple of underground power drilling tool Download PDFInfo
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- CN116006093A CN116006093A CN202310097512.3A CN202310097512A CN116006093A CN 116006093 A CN116006093 A CN 116006093A CN 202310097512 A CN202310097512 A CN 202310097512A CN 116006093 A CN116006093 A CN 116006093A
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- 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
- Y02E10/10—Geothermal energy
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Abstract
The invention relates to the technical field of resource exploration, in particular to an anti-sticking drill jamming pump nipple of a downhole power drilling tool. Comprises an upper joint; one end of the upper joint is provided with a drill rod buckle for connecting with the underground power drilling tool; the outer side of the other end of the upper joint is connected with an outer shell through threads; the right end of the upper joint is also provided with a first S-shaped section shaft; one end of the outer shell far away from the upper joint is in threaded connection with a sealing joint, and the sealing joint is sleeved on the outer side of the transmission joint; the outer shell and the transmission joint are fixedly connected through a plurality of pins. The nipple can simultaneously meet the requirements of two working conditions of composite drilling and sliding drilling of the underground power drilling tool, and simultaneously can shear pins in two modes of lifting or pumping-out pressure when the drilling meets the complex working conditions, so that the transmission separation of the drill bit and the underground power drilling tool is realized; and the situation that the pressure is not held under the circulating state of the pump is avoided, and the underground complex situation is treated.
Description
Technical Field
The invention relates to the technical field of resource exploration, in particular to an anti-sticking drill jamming pump nipple of a downhole power drilling tool.
Background
With the rapid development of drilling technology and the practical needs of exploration, development, energy saving and efficiency improvement of underground energy resources such as petroleum, natural gas, geothermal energy and the like, a downhole power drilling tool is one of the indispensable tools in drilling operations, especially deep wells and hard stratum drilling. The high-speed mud drives the bottom hole power drilling tool to generate high rotating speed or impact acting force on the drill bit at the bottom of the well, so that the shearing and impact crushing of the drill bit on stratum rock are accelerated, the mechanical drilling speed can be remarkably improved, and compared with the conventional rotary table rotary drilling, the construction cost can be greatly saved.
However, in actual drilling operations in the field, the downhole conditions are complex. In particular, when a new zone block is drilled into a exploratory well, related stratum data is lacked, and no adjacent well construction experience is used as a reference. And thus, underground complex accidents, such as burial caused by formation collapse, borehole shrinkage or drill blockage caused by borehole wall chipping, are inevitably caused in the drilling process. When accidents such as burial or hard clamping of the drill bit occur, the drill bit cannot normally rotate, so that a reverse torque force is formed on the underground power drilling tool such as a screw motor. When high-speed slurry acts on the screw, the motor rotor cannot normally rotate due to reverse torque at the drill bit, so that the screw motor cannot normally work, and finally the slurry pump is pressurized. Therefore, when the drilling meets more than the underground complex accident, the pump cannot be normally opened for circulation, and the accident handling difficulty is greatly increased.
Therefore, in order to solve the problem that the pump cannot be started to circulate and process in case of pressure build-up when the drill meets complex working conditions such as sticking, the inventor combines the actual field needs with years of field experience, comprehensively considers different operation needs of the underground power drilling tool, and develops the anti-sticking pump-blocking nipple of the underground power drilling tool.
Disclosure of Invention
The invention aims to provide an anti-sticking pump nipple of a downhole power drilling tool, which is used for solving the problem that the pump circulation processing is complicated because pressure is blocked when a drill encounters complex working conditions such as sticking. The nipple can simultaneously meet the requirements of two working conditions of composite drilling and sliding drilling of the underground power drilling tool, and meanwhile, the pin can be sheared in two modes of lifting or pumping-out pressure-holding when the drilling meets the above complex working conditions, so that the transmission separation of the drill bit and the underground power drilling tool is realized. The pressure holding condition can not appear under the pump-on circulation state, is favorable to handling the underground complex condition.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the invention provides an anti-sticking drill pump nipple of a downhole power drilling tool, which comprises an upper joint;
one end of the upper joint is provided with a drill rod buckle for connecting with a downhole power drilling tool;
the outer side of the other end of the upper joint is in threaded connection with an outer shell;
the right end of the upper joint is also provided with a first S-shaped section shaft;
one end of the outer shell far away from the upper joint is in threaded connection with a sealing joint, and the sealing joint is sleeved on the outer side of the transmission joint;
the outer shell is fixedly connected with the transmission joint through a plurality of pins;
a second S-shaped section shaft corresponding to the first S-shaped section shaft is arranged at one end, close to the upper joint, of the transmission joint;
the sections of the first S-shaped section shaft and the second S-shaped section shaft are complementary, and are used for transmitting torque;
the one end that the transmission joint kept away from the top connection is provided with the joint portion, the inside of the joint portion of transmission joint is provided with the drilling tool knot for with lower part joint threaded connection.
Further, an upper single-action assembly is sleeved on the outer side of the first S-shaped section shaft of the upper joint;
the outer side of the transmission joint is also sleeved with a lower single-action assembly, and the lower single-action assembly is closer to the upper joint relative to the pin;
the outside of the transmission joint is also connected with a suspension joint in a threaded manner, and two ends of the suspension joint are respectively contacted with the lower single-action assembly and the upper single-action assembly.
Further, a plurality of pin holes are formed in the peripheral side face, close to the right side, of the middle of the outer shell, pin holes corresponding to the pin holes of the outer shell in position and the same in number are formed in the surface of the transmission joint, and the pins are fixed inside the pin holes.
Further, the inner wall of the sealing joint is also provided with a sealing ring.
Further, the outer diameter of the joint part of the transmission joint is the same as the outer diameter of the outer shell.
Further, the transmission joint, the sealing joint, the suspension joint, the outer shell and the upper joint are hollow high-strength metal round tubes.
Further, the diameter of the first S-shaped section shaft is smaller than the diameter of the threaded connection part of the upper joint and the outer shell.
Further, the second S-section axis has a length less than a length of the first S-section axis.
The invention has at least the following beneficial effects:
the nipple can simultaneously meet the requirements of two working conditions of composite drilling and sliding drilling of the underground power drilling tool, and simultaneously can shear pins in two modes of lifting or pumping-out pressure when the drilling meets the complex working conditions, so that the transmission separation of the drill bit and the underground power drilling tool is realized; and the situation that the pressure is not held under the circulating state of the pump is avoided, and the underground complex situation is treated.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a tool assembly schematic;
FIG. 2 is a cross-sectional view and a right side view of the upper joint;
FIG. 3 is a cross-sectional and left side view of a drive joint;
fig. 4 is an oblique view of the drive joint.
In the figure: 1. a transmission joint; 11. a second S-shaped section shaft; 12. drilling tool buckle; 2. sealing the joint; 3. a lower single-action assembly; 4. a suspension joint; 5. 6, an outer shell; 7. an upper joint; 71. a drill rod buckle; 72. a first S-shaped section shaft; 8. and (5) a pin.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, the invention provides a downhole power drilling tool anti-jamming pump nipple.
The device comprises a transmission joint 1, a sealing joint 2, a lower single-action assembly 3, a suspension joint 4, an upper single-action assembly 5, an outer shell 6, an upper joint 7 and a pin 8.
The transmission joint 1, the sealing joint 2, the suspension joint 4, the outer shell 6 and the upper joint 7 are hollow high-strength metal round tubes, wherein the upper joint 7, the outer shell 6 and the sealing joint 2 are in threaded connection in sequence from left to right, and other main body parts are all positioned in the three parts.
Referring to fig. 2 and 3, the left end of the upper joint 7 is provided with a drill rod fastener 71 for connecting with a downhole power drilling tool such as an upper screw motor or a turbine drilling tool, the outer side of the right end of the upper joint is provided with threads, the threads are connected with the left end of the outer shell 6 in a threaded manner, and the right end surface of the upper joint is provided with a first S-shaped section shaft 72, and the diameter of the first S-shaped section shaft is slightly smaller than that of the left threaded portion of the first S-shaped section shaft.
Rectangular threads are turned at two ends of the outer shell 6, the left end of the outer shell is in threaded connection with the right end of the upper joint 7, and a plurality of pin holes are circumferentially formed in the middle right side of the outer shell and used for installing pins.
The left end of the sealing joint 2 is provided with rectangular threads which are in threaded connection with the right end of the outer housing 6, and the inner wall is provided with a sealing ring (not shown in the figure) for sealing the high pressure fluid inside the outer housing 6.
Referring to fig. 4 and 5, the driving joint 1 is a hollow tube, the left end of the hollow tube is provided with a second S-shaped section shaft 11, the section of the second S-shaped section shaft 11 is complementary with the section of the first S-shaped section shaft 72 at the right end of the joint 7, two sections are meshed with each other for transmitting torque, and the length of the second S-shaped section shaft 11 is slightly smaller than that of the first S-shaped section shaft 72;
the right end of the transmission joint 1 is a large-diameter joint, a drilling tool buckle 12 is arranged in the transmission joint and can be in threaded connection with a lower drilling tool joint, and the outer diameter of the right end joint is the same as that of the outer shell 6; rectangular threads are arranged at the right side of the S-shaped section at the left end of the transmission joint 1; meanwhile, a plurality of pin holes are uniformly distributed in the circumferential direction on the right side of the S-shaped section at the left end of the transmission joint 1.
The upper single-action assembly 5 and the lower single-action assembly 3 are two groups of radial ball bearings with the same size, wherein the upper single-action assembly 5 is sleeved at the S-shaped section shaft at the right end of the upper joint 7, the lower single-action assembly 3 is arranged at the S-shaped section shaft at the left end of the transmission joint 1, and the upper single-action assembly 5 and the lower single-action assembly 3 play a double role in limiting and centering the upper joint 7 and the transmission joint 1.
The suspension joint 4 is a hollow pipe body, rectangular threads are arranged in the hollow pipe body in a turning mode, the outer diameter of the hollow pipe body is smaller than the inner diameter of the outer shell 6 and larger than the outer diameter of the left pipe body of the transmission joint 1, the suspension joint 4 is connected with the left end of the transmission joint 1 through the rectangular threads, the right end face of the suspension joint 4 is contacted with the left end face of the lower single-action assembly 3, the left end of the suspension joint is contacted with the right end face of the upper single-action assembly 5, and the suspension joint has a limiting effect on the two groups of single-action assemblies.
The pin 8 is a solid rod made of high-strength brittle materials, uniformly distributed throughout the body and penetrating through pin holes on the outer shell 6 and the transmission joint 1, and mainly plays a limiting role on the lower single-acting assembly 3 and the transmission joint 1, so that the S-shaped section separation of the transmission joint 1 and the upper joint 7 is avoided.
During normal operation, the pin 8, the first S-shaped section shaft 72 and the second S-shaped section shaft 11 bear torque at the same time, and drive the lower drilling tool to rotate; when the bottom hole power drill is used under the complex working conditions such as the drilling sticking and burying (at the moment, the drill bit cannot rotate, and thus the outer shell 6 cannot rotate), the upper joint 7 can be forced to drive the transmission joint 1 to rotate in a pump-opening mode, so that the pin 8 is sheared; or shear pin 8 by lifting the drilling tool (when the drilling tool is stuck, the drilling tool cannot rotate, cannot be lifted or put down, and is equivalent to the fixing of the drilling tool position, when the drilling tool is lifted, the pin bears lifting tension), after the pin 8 is sheared, the lifting drilling tool and the upper joint 7 go upward, and the transmission joint 1 is not moved, so that the upper joint 7 and the transmission joint 1 are separated from the S-shaped section; at this time, when the pump is started for circulation, the upper power drilling tool drives the upper joint 7 to rotate, and the transmission joint 1 connected with the drill bit at the lower part does not rotate along with the upper power drilling tool, so that the condition of pressure-building caused by drill clamping or drill burying can be effectively avoided, and the pump circulation is facilitated to treat underground complex accidents; simultaneously, under the combined action of the two parts of the suspension joint 4 and the sealing joint 2, the transmission joint 1 and the outer head connected with the lower end of the transmission joint can be prevented from falling to the bottom of the well.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The anti-jamming pump nipple of the underground power drilling tool is characterized by comprising an upper joint (7);
one end of the upper joint (7) is provided with a drill rod buckle (71) for connecting with a downhole power drilling tool;
an outer shell (6) is connected to the outer side of the other end of the upper joint (7) through threads;
the right end of the upper joint (7) is also provided with a first S-shaped section shaft (72);
one end, far away from the upper joint (7), of the outer shell (6) is in threaded connection with a sealing joint (2), and the sealing joint (2) is sleeved on the outer side of the transmission joint (1);
the outer shell (6) is fixedly connected with the transmission joint (1) through a plurality of pins (8);
a second S-shaped section shaft (11) corresponding to the first S-shaped section shaft (72) is arranged at one end, close to the upper joint (7), of the transmission joint (1);
the sections of the first S-shaped section shaft (72) and the second S-shaped section shaft (11) are complementary, and are used for transmitting torque;
one end of the transmission joint (1) far away from the upper joint (7) is provided with a joint part, and the inside of the joint part of the transmission joint (1) is provided with a drilling tool buckle (12) for threaded connection with the lower joint.
2. The anti-jamming pump nipple of the underground power drilling tool according to claim 1, characterized in that an upper single-action assembly (5) is sleeved outside a first S-shaped section shaft (72) of the upper joint (7);
the outer side of the transmission joint (1) is also sleeved with a lower single-action assembly (3), and the lower single-action assembly (3) is closer to the upper joint (7) relative to the pin (8); the upper single-acting assembly (5) and the lower single-acting assembly (3) are two groups of radial ball bearings with the same size;
the outside of the transmission joint (1) is also connected with a suspension joint (4) in a threaded manner, and two ends of the suspension joint (4) are respectively contacted with the lower single-action assembly (3) and the upper single-action assembly (5).
3. The downhole motor anti-jamming pump sub according to claim 1, wherein a plurality of pin holes are formed in the peripheral side face of the middle of the outer casing (6) close to the right side, pin holes corresponding to the pin holes of the outer casing (6) in position and the same in number are formed in the surface of the transmission joint (1), and the pins (8) are fixed inside the pin holes.
4. The downhole motor anti-jamming pump sub according to claim 1, wherein the inner wall of the sealing joint (2) is further provided with a sealing ring.
5. The downhole motor anti-jamming pump sub according to claim 2, wherein the outer diameter of the joint part of the transmission joint (1) is the same as the outer diameter of the outer housing (6).
6. The anti-jamming pump sub of the underground power drilling tool according to claim 2, wherein the transmission joint (1), the sealing joint (2), the suspension joint (4), the outer shell (6) and the upper joint (7) are hollow high-strength metal round tubes.
7. The downhole motor anti-jamming pump sub according to claim 1, wherein the diameter of the first S-shaped section shaft (72) is smaller than the diameter of the threaded connection portion of the upper joint (7) and the outer casing (6).
8. A downhole motor anti-jamming pump sub according to claim 1, wherein the second S-section shaft (11) has a length less than the length of the first S-section shaft (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310097512.3A CN116006093A (en) | 2023-02-10 | 2023-02-10 | Anti-sticking drill pump-jamming nipple of underground power drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310097512.3A CN116006093A (en) | 2023-02-10 | 2023-02-10 | Anti-sticking drill pump-jamming nipple of underground power drilling tool |
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| Publication Number | Publication Date |
|---|---|
| CN116006093A true CN116006093A (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310097512.3A Pending CN116006093A (en) | 2023-02-10 | 2023-02-10 | Anti-sticking drill pump-jamming nipple of underground power drilling tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116971733A (en) * | 2023-09-22 | 2023-10-31 | 中国矿业大学 | Probing and injecting integrated machine tool and process suitable for tunneling under complex geological conditions |
-
2023
- 2023-02-10 CN CN202310097512.3A patent/CN116006093A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116971733A (en) * | 2023-09-22 | 2023-10-31 | 中国矿业大学 | Probing and injecting integrated machine tool and process suitable for tunneling under complex geological conditions |
| CN116971733B (en) * | 2023-09-22 | 2023-12-12 | 中国矿业大学 | Probing and injecting integrated machine tool and process suitable for tunneling under complex geological conditions |
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