CN115898291A - Fluid supercharging device and fluid pulse rotary steering drilling tool - Google Patents

Fluid supercharging device and fluid pulse rotary steering drilling tool Download PDF

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Publication number
CN115898291A
CN115898291A CN202111164305.2A CN202111164305A CN115898291A CN 115898291 A CN115898291 A CN 115898291A CN 202111164305 A CN202111164305 A CN 202111164305A CN 115898291 A CN115898291 A CN 115898291A
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China
Prior art keywords
pressure
fluid
cavity
drill bit
drill
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Pending
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CN202111164305.2A
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Chinese (zh)
Inventor
朱杰然
马清明
杨全进
侯树刚
肖红兵
袁晓琪
李静
张艳梅
崔海波
郭淑会
陶鑫
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Geological Measurement And Control Technology Research Institute Of Sinopec Jingwei Co ltd
Sinopec Oilfield Service Corp
Sinopec Jingwei Co Ltd
Original Assignee
Geological Measurement And Control Technology Research Institute Of Sinopec Jingwei Co ltd
Sinopec Oilfield Service Corp
Sinopec Jingwei Co Ltd
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Application filed by Geological Measurement And Control Technology Research Institute Of Sinopec Jingwei Co ltd, Sinopec Oilfield Service Corp, Sinopec Jingwei Co Ltd filed Critical Geological Measurement And Control Technology Research Institute Of Sinopec Jingwei Co ltd
Priority to CN202111164305.2A priority Critical patent/CN115898291A/en
Publication of CN115898291A publication Critical patent/CN115898291A/en
Pending legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/20Hydro energy

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Abstract

The invention discloses a liquid supercharging device, which comprises a first power device connected with a drill rod and a drill collar, a second power device arranged in a manner of rotating synchronously with a drill bit and a regulating device connected between the first power device and the second power device; the first power device is a turbine; the second power unit includes: the high-pressure cavity is communicated to a high-pressure hole of the drill bit and a high-pressure nozzle through a valve port of the electromagnetic valve; the invention also provides a fluid pulse rotary guide drilling tool, the valve port of the electromagnetic valve and the high-pressure hole are mutually corresponding and fixed and synchronously rotate, the sealing stability is ensured, the pressure of the injected drilling fluid is ensured, the reliability of directional rock breaking is improved, the designed double-layer high-pressure cavity is combined with the up-and-down movement of the piston, the injection pressure is ensured to a great extent, and the fluid pulse rotary guide drilling tool is simple and compact in integral structure, has higher reliability and longer service life.

Description

Fluid supercharging device and fluid pulse rotary steering drilling tool
Technical Field
The invention relates to a rotary steering drilling device in the field of petroleum drilling engineering, in particular to a fluid pressurizing device for pressurizing drilling fluid for hydraulic rock breaking steering drilling.
Background
The rotary steering drilling system is an important drilling tool for wells with complex structures, such as horizontal wells, directional wells, extended reach wells and the like. The rotary steering drilling system reduces the pressure supporting phenomenon by rotating the shell or rotating most of the shell and not rotating the extremely short part, thereby realizing the construction of deeper and longer horizontal wells and directional wells. In recent years, rotary steerable drilling systems have become popular steerable drilling techniques and become one of the key techniques for efficient drilling. The principle of the rotary steering drilling system is that uneven rock breaking is carried out in controllable different directions, and the rock breaking amount in a specific direction is larger than that in other directions.
At present, the rock breaking mode of the rotary steering drilling system is a mechanical rock breaking mode or a hydraulic rock breaking mode, the mechanical rock breaking mode mainly depends on the lateral cutting capability and the steering lateral force of a drill bit, but a biasing mechanism generating the lateral force is easily failed under the influence of adverse factors such as vibration, impact and rotation, and further the steering effect and the service life of the whole rotary steering drilling system are influenced. The existing hydraulic guiding rock breaking mode often has the problem of poor sealing performance, and the service life and reliability are seriously influenced.
Therefore, the technical problems to be solved by the technical personnel in the field are how to solve the problems of the reduction of the reliability and the service life of the offset mechanism of the rotary steering drilling system caused by a mechanical rock breaking mode and avoid the rotary sealing problem under the high-pressure hydraulic rock breaking condition.
Disclosure of Invention
The invention aims to provide a fluid supercharging device which is used for supercharging power of drilling fluid in a drilling process, not only solves the problem of poor sealing performance of traditional high-pressure hydraulic rock breaking, but also improves the reliability of directional rock breaking.
In order to achieve the purpose, the invention provides a fluid supercharging device which comprises a first power device connected with a drill rod and a drill collar, a second power device arranged in a manner of rotating synchronously with a drill bit and a regulating and controlling device connected between the first power device and the second power device;
the first power device is a turbine;
the second power unit includes: the high-pressure cavity is communicated to a high-pressure hole of the drill bit and the high-pressure nozzle through a valve port of the electromagnetic valve.
Furthermore, a central wire passing rod connected to the electromagnetic valve penetrates through the high-pressure pump and the high-pressure cavity, and a wire connected to the electromagnetic valve penetrates through the central wire passing rod.
Furthermore, a shell is arranged outside the high-pressure pump, a liquid inlet is formed in the shell, a pump end bearing is arranged at the bottom end, opposite to the inner side of the shell, of the high-pressure pump, and a lower centralizer is arranged at the bottom end, opposite to the outer side of the shell, of the high-pressure pump.
Furthermore, the radius of the cavity of the high-pressure cavity is smaller than that of the high-pressure pump, and the upper end and the lower end of the central wire passing rod in the high-pressure cavity are provided with wire passing rod centralizers.
Furthermore, the high-pressure cavity is of a double-layer pipe structure, the inner cavity of the inner layer pipe contains pressurized drilling fluid and the central wire passing rod, the cavity on the outer side of the outer layer pipe is a low-pressure cavity and contains non-pressurized drilling fluid, a buffer cavity is formed between the inner layer pipe and the outer layer pipe, and a piston with an elastic structure is arranged in the buffer cavity.
Furthermore, the buffer cavity is communicated with the low-pressure cavity through a breathing port arranged on the outer cavity wall on the upper side of the buffer cavity, the bottom side of the piston is communicated with the high-pressure cavity, and the elastic structure is a spring.
Furthermore, the electromagnetic valve is fixedly arranged on the drill bit through the valve seat, and a valve port of the electromagnetic valve corresponds to the high-pressure hole of the drill bit.
Furthermore, the number of the electromagnetic valves is at least two, and the valve ports of the at least two electromagnetic valves correspond to the at least two high-pressure holes of the drill bit one by one.
Furthermore, the regulation and control device comprises a generator, a circuit protection cylinder and an underground motor, wherein the generator is sequentially connected with the upper turbine, the circuit protection cylinder is internally provided with a measurement and control circuit board and an attitude sensor, and the underground motor is connected to a high-pressure pump of the second power device through a universal shaft.
The invention further provides a fluid pulse rotary steering drilling tool, which comprises the liquid supercharging device, an outer barrel sleeved on the periphery of the liquid supercharging device, a drill collar connected to the upper end of the outer barrel and a drill bit connected to the lower end of the outer barrel, wherein one part of drilling fluid in the inner cavity of the outer barrel flows out through a low-pressure water hole of the drill bit, and the other part of drilling fluid is sprayed out through a high-pressure hole and a high-pressure nozzle of the drill bit after being supercharged by the liquid supercharging device.
Further, the turbine in the fluid booster device is connected to the drill collar through the upper central cylinder.
Further, the upper central cylinder is centered with respect to the outer cylinder by an upper centralizer.
Further, under the power of the drill collar, the outer cylinder, the first power device, the second power device and the drill bit synchronously rotate.
The liquid pressurizing device is designed to synchronously rotate with the drill bit, so that the problem of poor sealing caused by relative rotation is avoided, the valve port of the arranged electromagnetic valve corresponds to and is fixed with the high-pressure hole, the sealing stability is ensured, the pressure of the injected drilling fluid is ensured, and the reliability of directional rock breaking is improved. The technical scheme of the invention does not need an additional mechanical biasing mechanism, avoids high-pressure dynamic tightness, has simple and compact integral structure, higher reliability and longer service life.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a fluid pressurization device applied to a fluid pulse rotary steering drilling tool according to an embodiment of the present invention;
fig. 2 is an enlarged view of a portion a of fig. 1.
Wherein: 1. the device comprises an outer cylinder, 2, an upper central cylinder, 3, an upper centralizer, 4, a turbine, 5, a generator, 6, a measurement and control circuit board, 7, a circuit protection cylinder, 8, an attitude sensor, 9, a downhole motor, 10, a universal shaft, 11, a high-pressure pump, 12, a shell, 13, a pump end bearing, 14, a central wire guide rod, 15, a lead, 16, a wire guide rod centralizer, 17, a high-pressure cavity, 18, a spring, 19, a breathing port, 20, a piston, 21, an electromagnetic valve, 22, a valve seat, 23, a high-pressure hole, 24, a drill bit, 25, a high-pressure nozzle, 26, a low-pressure water eye, 27 and a liquid inlet.
Detailed Description
The core of the invention is to provide a liquid supercharging device and the application of the liquid supercharging device on a fluid pulse rotary steering drilling tool, aiming at solving the problem of the sealing property of the existing supercharging device, ensuring the injection pressure of drilling fluid, improving the reliability of directional rock breaking in drilling and ensuring the drilling speed.
In order to make those skilled in the art better understand the technical solutions of the present invention, the following detailed description of the present invention is made with reference to the accompanying drawings and embodiments.
Example one
Referring to fig. 1 to 2, a fluid pressure increasing apparatus disclosed in this embodiment includes a first power device connected to a drill pipe collar, a second power device rotating synchronously with a drill bit 24, and a control device connected between the first power device and the second power device; the first power device is a turbine 4; the second power unit includes: the high-pressure pump 11, a high-pressure cavity 17 at the lower end of the high-pressure pump 11 and an electromagnetic valve 21 at the bottom end of the high-pressure cavity 17, the high-pressure cavity 17 is communicated to a high-pressure hole 23 of a drill bit 24 and a high-pressure nozzle 25 through a valve port of the electromagnetic valve 21. Under the power-on condition, the high-pressure pump 11 works to pressurize the drilling fluid entering the high-pressure pump 11 and convey the drilling fluid into the high-pressure cavity 17, then the high-pressure drilling fluid enters a high-pressure hole 23 in a drill bit 24 through a valve port of an electromagnetic valve 21 at the bottom end of the high-pressure cavity 17, and finally is sprayed out through a high-pressure nozzle 25 to form directional spraying high-pressure drilling fluid. The turbine 4 of the first power device rotates under the action of the drilling fluid flow force to drive the regulating device to work, and the regulating device finely adjusts the posture, the rotating speed and the like of the second power device. As shown in fig. 1, a casing 12 is disposed outside a high-pressure pump 11, a drilling fluid introduction cavity is disposed at an upper end of the high-pressure pump 11, a fluid inlet 27 is disposed on the casing 12, the drilling fluid outside the casing 12 enters the drilling fluid introduction cavity through the fluid inlet 27 under the power action of the high-pressure pump 11, and then flows into a high-pressure cavity 17 after being subjected to power boosting by the high-pressure pump 11, in order to ensure the stability of the position of the high-pressure pump 11 and the stability of the rotational power, a pump end bearing 13 is disposed at a bottom end of the high-pressure pump 11 opposite to an inner side of the casing 12, and the high-pressure pump 13 abuts against a reducing step of the casing 12 through the pump end bearing 13, so as to achieve position stability and rotational stability, and further ensure the position stability of the high-pressure pump 11 and the casing 12 and prevent radial shaking thereof, and a lower centralizer is disposed at a bottom end of the high-pressure pump 11 opposite to an outer side of the casing 12 and ensure the central position stability of the high-pressure pump 11 and a downhole motor 9 and the like connected thereto in a working state.
In this embodiment, when the valve port of the electromagnetic valve 21 is in an energized state, the controller is opened or closed, and then a control and power line needs to be designed to be connected to the electromagnetic valve 21, here, the design scheme of this embodiment is as follows: the high-pressure pump 11 and the high-pressure cavity 17 are internally provided with a central wire passing rod 14 connected to the electromagnetic valve 21 in a penetrating manner, a lead 15 connected to the electromagnetic valve 21 penetrates through the central wire passing rod 14, and the design of the central wire passing rod 14 does not influence the work of the high-pressure pump 11 or obstruct the flow of high-pressure drilling fluid in the high-pressure cavity 17, and simultaneously provides a passage for the lead 15, so that the safe and stable transmission function of the lead 15 is ensured. As shown in fig. 1, the bottom end of the high pressure chamber 17 is inserted into the drill bit 24, the inner side contact position of the insertion position is the position of the electromagnetic valve 21, the outer side of the insertion position is the low pressure chamber, the drilling fluid in the low pressure chamber flows out through the low pressure water hole 26, because the electromagnetic valve 21 is located at the insertion position of the high pressure chamber 17 and the drill bit 24, the sealing performance of the electromagnetic valve 21 is particularly important, in this embodiment, in order to ensure the sealing effect of the electromagnetic valve 21 relative to the drill bit 24, the electromagnetic valve 21 is fixedly arranged on the drill bit 24 through the valve seat 22, the valve port of the electromagnetic valve 21 corresponds to the high pressure hole 23 of the drill bit 24, the electromagnetic valve 21 and the drill bit 24 rotate synchronously, according to the requirement of directional injection, the number of the electromagnetic valves 21 can be at least two, the valve ports of at least two electromagnetic valves 21 correspond to the high-pressure holes 23 of the drill 24 one by one, the high-pressure holes 23 of the drill 24 are also two, the valve ports of the electromagnetic valves 21 correspond to the high-pressure holes 23, and rotate synchronously, and as a preferred embodiment, three electromagnetic valves 21 are arranged on the valve seat 22, and the high-pressure holes 23 corresponding to the three electromagnetic valves 21 are also three.
In operation, the high pressure cavity 17 is the same as the high pressure pump 11 and the electromagnetic valves 21, and rotates synchronously with the drill bit 24, the attitude sensor 8 in the regulation and control device performs real-time dynamic calculation to obtain the attitude of the drilling tool through an advanced strapdown algorithm, the three electromagnetic valves 21 are fixedly connected with the three high pressure nozzles 25, and rotate simultaneously, and the electromagnetic valves 21 are opened and closed at fixed stratum positions and angles by using geodetic coordinate reference, that is, the electromagnetic valves 21 are opened and closed at fixed moments through control logic, so that the positions and angles at which the high pressure cavity 17 is communicated with the high pressure nozzles 25 are fixed, thereby realizing directional injection of high pressure drilling fluid, and the electromagnetic valves 21 are fixedly connected with the high pressure nozzles 25, and have no relative rotation, so that stable sealing is realized.
Regarding the high pressure chamber 17 that this embodiment relates to, the cavity radius of high pressure chamber 17 is less than the radius of high-pressure pump 11, and both ends are provided with wire rod centralizer 16 about the central wire rod 14 in high pressure chamber 17, prevent that high pressure chamber 17 from causing the influence to central wire rod 14 when the high-pressure drilling fluid of developments high frequency sprays, make it rock, and then influence the stability of performance of other parts, high pressure chamber 17 in this embodiment is double-deck tubular construction, inner tube inner chamber holds pressure boost drilling fluid and central wire rod 14, outer outside of tubes cavity is the low pressure chamber, holds non-pressure boost drilling fluid, form the cushion chamber between inner tube and the outer pipe, be provided with piston 20 that has elastic construction in the cushion chamber. The buffer cavity is communicated with the low-pressure cavity through a breathing port 19 arranged on the outer cavity wall on the upper side of the buffer cavity, the bottom side of the piston is communicated with the high-pressure cavity, and the elastic structure is a spring 18. When the electromagnetic valve 21 is in a closed state, high-pressure drilling fluid compresses the spring 18 by pushing the piston 20, energy is accumulated, the next time the electromagnetic valve 21 is opened is waited for, and at the moment, the drilling fluid in the buffer cavity on the upper side of the piston 20 is discharged into the low-pressure cavity through the breathing port 19 under the action of the pressure of the piston 20. Subsequently, at certain node after high-pressure pump 11 provides high-pressure drilling fluid continuously, solenoid valve 21 is opened at fixed moment, the high-pressure drilling fluid of instantaneous injection, after the release pressure, piston 20 is under the effect of spring 18, down move, the drilling fluid of low-pressure chamber gets into the cushion chamber through breathing port, balance the pressure of piston 20 upper and lower both sides, that is, when the solenoid valve was closed, high-pressure drilling fluid passes through piston 20 and saves energy, piston 20 goes upward, the drilling fluid in the cushion chamber discharges through breathing port 19, avoid piston 20 to go upward to be obstructed, when solenoid valve 20 opened, a large amount of high-pressure drilling fluid passes through solenoid valve 20 and reaches high-pressure nozzle 25, piston 20 descends, the drilling fluid of low-pressure chamber gets into the cushion chamber through breathing port 19, balanced pressure. Thereby ensuring the stable and reliable injection pressure.
In addition, the regulation and control device in the embodiment is used for regulating and controlling the positions and the running states of the turbine 4, the high-pressure pump 11 and the high-pressure cavity 17, the regulation and control device comprises a generator 5, a circuit protection cylinder 7 and a downhole motor 9, wherein the generator 5 is sequentially connected with the upper turbine 4, the circuit protection cylinder 7 is internally provided with a measurement and control circuit board 6 and an attitude sensor 8, the circuit protection cylinder 7 is used for protecting the measurement and control circuit board 6 and the attitude sensor 8 from environmental interference in a drilling working condition, and the downhole motor 9 is connected to the high-pressure pump 11 of the second power device through a universal shaft 10. The generator 5 is installed on the turbine 4, the generator 5 rotor is driven to generate electricity through the turbine 4, a power supply is provided for the measurement and control circuit board 6 and the attitude sensor 8, the measurement and control circuit board 6 is installed in the circuit protection barrel 7 and provides control signals for the whole generator 5, the underground motor 9 and the like, and the attitude sensor 8 is used for measuring the attitude, the position and the motion state of the upper central barrel 2 and the turbine 4.
Example two
The embodiment provides a fluid pulse rotary guiding drilling tool on the basis of the first embodiment, wherein a liquid pressurizing device in the first embodiment is arranged in the guiding drilling tool, and specific structures and technical schemes of pressurizing principles of the liquid pressurizing device are described in detail in the first embodiment, and the description is omitted in the first embodiment, so that how to apply the liquid pressurizing device is provided for the fluid pulse rotary guiding drilling tool which is stable, reliable and good in sealing performance. During specific work, the liquid supercharging device arranged in the outer cylinder 1 supercharges the drilling fluid flowing into the cavity of the high-pressure pump 11 from the low-pressure cavity through the liquid inlet 27, then the drilling fluid enters the high-pressure cavity 17, is discharged into the high-pressure hole 23 of the drill bit 24 through the intermittently opened electromagnetic valve 21, and is then sprayed out through the high-pressure spray nozzle 25, so that intermittent and equal-position spraying of the high-pressure drilling fluid is completed.
In the embodiment, a turbine 4 in the liquid supercharging device is connected to a drill collar through an upper central cylinder 2, an outer cylinder 1, a drill bit 24 and the liquid supercharging device rotate synchronously without relative rotation, and under the power of the drill collar, the outer cylinder 1, a first power device, a second power device and the drill bit 24 rotate synchronously. The upper central cylinder 2 is arranged in the center relative to the outer cylinder 1 through the upper centralizer 3, so that the stability of the central position of the upper central cylinder is guaranteed, and the radial play of the upper central cylinder is prevented, in the embodiment, the valve seat 22, the electromagnetic valves 21 and the drill bit 24 do not rotate relatively, and the problem of poor sealing performance or failure does not exist, at least one electromagnetic valve is arranged on the valve seat 22, two, three or a plurality of other electromagnetic valves can be arranged, the embodiment is not described one by one, preferably, three electromagnetic valves 21 (not limited to three) are arranged on the valve seat 22, each electromagnetic valve 21 corresponds to one high-pressure hole 23 and one high-pressure nozzle 25 of the drill bit 24, the opening time and the opening time of the electromagnetic valves 21 are controlled and measured through monitoring and control of a monitoring and controlling circuit board 6 and an attitude sensor 8 in a regulating and controlling device, because the electromagnetic valves 21 and the drill bit 24 rotate synchronously, the opening time and the opening time of the electromagnetic valves 21 can directly reflect the injection position and the rock breaking time of the high-pressure nozzle 25, the injection position represents the guiding direction, and the injection time represents the guiding capability; and the drill bit 24 sprays high-pressure drilling fluid every time the drill bit rotates to a fixed position, so that the directional hydraulic rock breaking guide is formed.
Finally, it should also be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (13)

1. A liquid supercharging device which characterized in that: the device comprises a first power device connected with a drill rod and a drill collar, a second power device synchronously and rotationally arranged with a drill bit (24) and a regulating and controlling device connected between the first power device and the second power device;
the first power device is a turbine (4);
the second power unit includes: the high-pressure jet drill comprises a high-pressure pump (11), a high-pressure cavity (17) located at the lower end of the high-pressure pump (11) and an electromagnetic valve (21) located at the bottom end of the high-pressure cavity (17), wherein the high-pressure cavity (17) is communicated to a high-pressure hole (23) of a drill bit (24) and a high-pressure nozzle (25) through a valve port of the electromagnetic valve (21).
2. The liquid supercharging device according to claim 1, characterized in that a central line-guiding rod (14) connected to the solenoid valve (21) extends through the high-pressure pump (11) and the high-pressure chamber (17), and a lead (15) connected to the solenoid valve (21) extends through the central line-guiding rod (14).
3. The liquid charging apparatus according to claim 1 or 2, characterized in that a housing (12) is provided outside the high-pressure pump (11), a liquid inlet (27) is provided on the housing (12), and a pump end bearing (13) is provided at a bottom end of the high-pressure pump (11) opposite to an inner side of the housing (12), and a lower centralizer is provided at a bottom end of the high-pressure pump (11) opposite to an outer side of the housing (12).
4. The liquid supercharging device according to claim 2, characterized in that the cavity radius of the high-pressure cavity (17) is smaller than the radius of the high-pressure pump (11), and the upper and lower ends of the central wire rod (14) in the high-pressure cavity (17) are provided with wire rod centralizers (16).
5. The fluid pressurization device according to claim 2, wherein the high pressure chamber (17) is a double-layer tube structure, the inner cavity of the inner layer tube contains pressurized drilling fluid and a central wire passing rod (14), the outer cavity of the outer layer tube is a low pressure chamber and contains non-pressurized drilling fluid, a buffer chamber is formed between the inner layer tube and the outer layer tube, and a piston (20) with an elastic structure is arranged in the buffer chamber.
6. A liquid pressurisation device according to claim 5, characterised in that the buffer chamber communicates with the low pressure chamber via a breathing port (19) provided in the outer chamber wall on the upper side thereof, the piston communicates with the high pressure chamber on the bottom side thereof, and the resilient structure is a spring (18).
7. A liquid pressurizing device according to claim 1, wherein the solenoid valve (21) is fixed to the drill (24) by a valve seat (22), and a valve port of the solenoid valve (21) corresponds to the high-pressure hole (23) of the drill (24).
8. The fluid pressure boost device according to claim 7, characterized in that, the number of the solenoid valves (21) is at least two, and the valve ports of at least two solenoid valves (21) correspond to the high pressure holes (23) of the drill bit (24) one by one.
9. The liquid supercharging device according to claim 1, characterized in that the regulation and control device comprises a generator (5) connected in sequence with the upper turbine (4), a circuit protection cylinder (7) in which a measurement and control circuit board (6) and an attitude sensor (8) are arranged, and a downhole motor (9), wherein the downhole motor (9) is connected to a high-pressure pump (11) of a second power unit through a cardan shaft (10).
10. The fluid pulse rotary steering drilling tool is characterized by comprising the fluid pressurizing device as claimed in any one of claims 1 to 9, and further comprising an outer cylinder (1) sleeved on the periphery of the fluid pressurizing device, a drill collar connected to the upper end of the outer cylinder (1), and a drill bit (24) connected to the lower end of the outer cylinder (1), wherein one part of drilling fluid in the inner cavity of the outer cylinder (1) flows out through a low-pressure water hole (26) of the drill bit (24), and the other part of drilling fluid is pressurized by the fluid pressurizing device and then is sprayed out through a high-pressure hole (23) and a high-pressure nozzle (25) of the drill bit (24).
11. A fluid pulse rotary steerable drilling tool according to claim 10, wherein: the turbine (4) in the liquid supercharging device is connected to the drill collar through the upper central cylinder (2).
12. A fluid pulse rotary steerable drilling tool according to claim 10, wherein: the upper central cylinder (2) is arranged in the middle relative to the outer cylinder (1) through an upper centralizer (3).
13. A fluid pulse rotary steerable drilling tool according to claim 10, wherein: under the power of the drill collar, the outer cylinder (1), the first power device, the second power device and the drill bit (24) synchronously rotate.
CN202111164305.2A 2021-09-30 2021-09-30 Fluid supercharging device and fluid pulse rotary steering drilling tool Pending CN115898291A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111164305.2A CN115898291A (en) 2021-09-30 2021-09-30 Fluid supercharging device and fluid pulse rotary steering drilling tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111164305.2A CN115898291A (en) 2021-09-30 2021-09-30 Fluid supercharging device and fluid pulse rotary steering drilling tool

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Publication Number Publication Date
CN115898291A true CN115898291A (en) 2023-04-04

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CN202111164305.2A Pending CN115898291A (en) 2021-09-30 2021-09-30 Fluid supercharging device and fluid pulse rotary steering drilling tool

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116696255A (en) * 2023-08-02 2023-09-05 中国石油大学(华东) Electromagnetic reversing type underground supercharging device
CN117108205A (en) * 2023-10-20 2023-11-24 四川派盛通石油工程技术有限公司 Pulse type supercharging jet drilling device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116696255A (en) * 2023-08-02 2023-09-05 中国石油大学(华东) Electromagnetic reversing type underground supercharging device
CN116696255B (en) * 2023-08-02 2023-10-27 中国石油大学(华东) Electromagnetic reversing type underground supercharging device
CN117108205A (en) * 2023-10-20 2023-11-24 四川派盛通石油工程技术有限公司 Pulse type supercharging jet drilling device
CN117108205B (en) * 2023-10-20 2024-01-23 四川派盛通石油工程技术有限公司 Pulse type supercharging jet drilling device

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