Electrical connection line crossing device, drilling apparatus and oil production apparatus

Abstract

The application discloses an electric connection wire penetrating device, a drilling device and an oil production device. The electric connection wire penetrating device comprises a protective shell and an adapter assembly. The protective shell is used for being connected with a power element and has a protective cavity into which an electric connection wire and a central pipe of the power element extend. The adapter assembly comprises a penetrating seat and a fluid delivery joint. The penetrating seat is arranged in the protective cavity and is provided with a penetrating hole and a fluid flow channel. The penetrating hole is used for allowing the electric connection wire to penetrate. The fluid delivery joint is connected between the penetrating seat and the central pipe. The fluid flow channel is communicated with the central pipe through the fluid delivery joint. In the electric connection wire penetrating device, the penetrating hole and the fluid flow channel are respectively arranged on the penetrating seat, so that the electric connection wire and the fluid are effectively isolated. The fluid is prevented from contacting the electric connection wire and corroding the electric connection wire. The electric connection wire is arranged in the protective cavity of the protective shell, so that the electric connection wire is effectively prevented from being damaged due to collision with external structures. The protection performance of the electric connection wire is greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of petroleum extraction technology, specifically relating to an electrical connection line crossing device, drilling equipment, and oil production equipment. Background Technology

[0002] In the process of oil extraction, it is often necessary to transport fluids downhole and introduce electrical connection lines such as cables and signal lines into the well for operation. For example, in drilling operations, mud needs to be transported to the drill bit through the central tube of the downhole motor for pressure supply, and the cable of the downhole motor also extends into the oil well along with the downhole motor; similarly, in oil production operations, oil needs to be pumped into the tubing through a submersible electric pump, and the cable of the submersible electric pump extends into the oil well along with the submersible electric pump.

[0003] However, during fluid transportation, if fluid leaks and comes into contact with the electrical connection wires, it can reduce the insulation performance of the electrical connection wires, or even corrode them and cause damage. Furthermore, the leaked fluid may seep into the downhole motor or submersible pump, causing power failure. In addition, with the trend towards smaller wellbore sizes, the electrical connection wires are very prone to colliding with the inner wall of the casing, causing mechanical damage. In other words, the electrical connection wires cannot be effectively protected during oil extraction, resulting in poor protection. Summary of the Invention

[0004] To address the aforementioned deficiencies or shortcomings, this invention provides an electrical connection line crossing device, drilling equipment, and oil production equipment, aiming to solve the technical problem of ineffective protection of electrical connection lines and poor protection of electrical connection lines during oil extraction.

[0005] To achieve the above objectives, the present invention provides an electrical connection wire passage device, the electrical connection wire passage device comprising:

[0006] A protective housing for connecting to power components, and having a protective cavity into which the electrical connection wires and central tube of the power components extend;

[0007] The adapter assembly includes a through-hole and a fluid delivery connector. The through-hole is located inside the protective cavity and has a through-hole and a fluid flow channel. The through-hole is used for the power supply connection cable to pass through. The fluid delivery connector is connected between the through-hole and the central tube, and the fluid flow channel is connected to the central tube through the fluid delivery connector.

[0008] In this embodiment of the invention, a clearance step is provided on the through seat, and a clearance space is formed between the clearance step and the inner wall of the protective cavity, and the through hole is connected to the clearance space.

[0009] In this embodiment of the invention, the through-hole includes a sealing section and a connecting section. One end of the connecting section is connected to the sealing section, and the other end of the connecting section is connected to the fluid delivery connector. The through-hole is opened on the sealing section, and the clearance step is opened on the connecting section. The fluid flow channel is provided through the sealing section and the connecting section, and the sealing section is sealed to the inner wall of the cavity to block the clearance space.

[0010] In an embodiment of the present invention, the avoidance step includes a first avoidance part and a second avoidance part. The first avoidance part is located between the sealing section and the second avoidance part, and the distance between the first avoidance part and the inner wall of the cavity is greater than the distance between the second avoidance part and the inner wall of the cavity.

[0011] In this embodiment of the invention, the step avoidance section further includes an inclined avoidance section, one end of which is connected to a first avoidance section, and the other end of which is connected to a second avoidance section. The distance between the inclined avoidance section and the inner wall of the cavity is gradually reduced in the direction away from the first avoidance section.

[0012] In this embodiment of the invention, a connecting groove is provided at the end of the connecting section away from the sealing section, the fluid flow channel is connected to the connecting groove, and the fluid delivery connector extends into and is connected to the connecting groove.

[0013] In an embodiment of the present invention, the fluid delivery connector includes a first connector portion and a second connector portion. The first connector portion extends into and is connected to the connecting groove. One end of the second connector portion is connected to the first connector portion, and the other end of the second connector portion is connected to the central tube.

[0014] In this embodiment of the invention, the first connector has an extended flow channel, the second connector has an inclined flow channel, the extended flow channel is connected to the connecting groove, one end of the inclined flow channel is connected to the extended flow channel, the other end of the inclined flow channel is connected to the central tube, the central axis of the extended flow channel is parallel to the central axis of the central tube, and the central axis of the inclined flow channel is inclined.

[0015] In this embodiment of the invention, an inclined clearance wall is provided on the second connector, and the distance between the inclined clearance wall and the inner wall of the cavity is gradually reduced in the direction away from the first connector.

[0016] In an embodiment of the present invention, the first connector includes a first connecting segment and a second connecting segment. The first connecting segment extends into and is connected to the connecting groove. The second connecting segment is connected to the first connecting segment. The second connecting segment extends into the second connector and is connected to one end of the second connector. The central tube extends into the second connector and is connected to the other end of the second connector.

[0017] In an embodiment of the present invention, a limiting boss is provided on the first connecting segment, and the limiting boss abuts against the connecting segment.

[0018] In this embodiment of the invention, a flow guiding slope is provided on the bottom wall of the connecting groove, and the distance between the flow guiding slope and the side wall of the connecting groove gradually increases in the direction away from the fluid flow channel.

[0019] In this embodiment of the invention, the protective housing includes a protective cylinder and a mounting connector. The protective cylinder has a protective cavity, and the mounting connector extends into the protective cavity and is connected to the fluid delivery connector. The mounting connector is used to connect to the power component.

[0020] In this embodiment of the invention, the fluid delivery connector is provided with a mounting boss, and the mounting boss is connected to the mounting connector by fasteners.

[0021] In this embodiment of the invention, a limiting step is provided on the mounting joint, and the protective cylinder abuts against the limiting step.

[0022] In this embodiment of the invention, the adapter assembly further includes a through rod, which is disposed in the through hole and has an electrical connection wire threaded through it.

[0023] In this embodiment of the invention, the cross-section of the fluid channel is arc-shaped, and the fluid channel surrounds the outer periphery of the through hole.

[0024] To achieve the above objectives, the present invention also provides a drilling apparatus, which includes the electrical connection line crossing device described above.

[0025] To achieve the above objectives, the present invention also provides an oil production device, which includes the electrical connection line crossing device described above.

[0026] Through the above technical solutions, the electrical connection line crossing device, drilling equipment, and oil production equipment provided in the embodiments of the present invention have the following beneficial effects:

[0027] In the technical solution of this invention, a protective cavity is formed inside the protective shell. The protective shell is connected to the power element, allowing the electrical connection wire and central tube of the power element to extend into the protective cavity. A through-hole and a fluid flow channel are provided inside the protective cavity. The electrical connection wire passes through the through-hole, and the through-hole is connected to the central tube via a fluid delivery connector, so that the fluid flow channel, the fluid delivery connector, and the central tube are sequentially connected, realizing fluid delivery. In the electrical connection wire through-hole device of this invention, the through-hole for the power connection wire to pass through and the fluid flow channel for conveying fluid are provided on the through-hole and the fluid flow channel respectively provided on the through-hole effectively isolate the electrical connection wire and the fluid, preventing the fluid from contacting and corroding the electrical connection wire. Furthermore, the electrical connection wire is located inside the protective cavity of the protective shell, effectively preventing the electrical connection wire from colliding with external structures and causing damage. This achieves stable and reliable protection of the electrical connection wire during oil extraction, significantly improving the protection performance of the electrical connection wire.

[0028] Other features and advantages of the embodiments of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0029] The accompanying drawings are provided to further illustrate embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. Those skilled in the art can obtain other drawings based on the structures shown in these drawings without any inventive effort. In the drawings:

[0030] Figure 1 This is a schematic diagram of the assembly structure of the electrical connection wire crossing device, the electrical connection wire, and the central tube according to an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the assembly structure of an electrical connection wire crossing device according to an embodiment of the present invention;

[0032] Figure 3 This is an exploded structural diagram of an electrical connection wire crossing device according to an embodiment of the present invention;

[0033] Figure 4 This is a cross-sectional structural schematic diagram of an electrical connection wire crossing device according to an embodiment of the present invention;

[0034] Figure 5 This is an exploded structural diagram of a transfer component in an electrical connection wire crossing device according to an embodiment of the present invention;

[0035] Figure 6 This is a cross-sectional structural schematic diagram of a transfer component in an electrical connection wire crossing device according to an embodiment of the present invention;

[0036] Figure 7 This is a schematic diagram of the through-hole seat in a transition assembly according to an embodiment of the present invention;

[0037] Figure 8 This is a schematic diagram of the structure of the sealing section in the through seat according to an embodiment of the present invention;

[0038] Figure 9 This is a schematic diagram of the structure of the fluid delivery connector in the adapter assembly according to an embodiment of the present invention;

[0039] Figure 10 This is a schematic diagram of the structure of the second connector and the mounting connector in an electrical connection wire crossing device according to an embodiment of the present invention;

[0040] Figure 11 This is an exploded structural diagram of the protective housing in an electrical connection wire crossing device according to an embodiment of the present invention.

[0041] Explanation of reference numerals in the attached figures

[0042] 10. Protective outer shell; 11. Protective cavity; 111. Cavity inner wall; 12. Protective cylinder; 13. Mounting connector; 131. Limiting step; 132. Fifth sealing ring; 20. Through seat; 21. Through hole; 22. Fluid flow channel; 23. Clearance step; 231. Clearance space; 232. First clearance part; 233. Second clearance part; 234. Inclined clearance part; 24. Sealing section; 241. First sealing ring; 25. Connecting section; 251. Connecting groove; 2511. Guide ramp; 30. Fluid conveying connector; 31. First connector part; 311. Extended flow channel; 312 3121. First connecting section; 3122. Limiting boss; 3123. Second sealing ring; 3124. Waterproof cap; 313. Second connecting section; 3131. Third sealing ring; 32. Second joint; 321. Inclined flow channel; 322. Inclined clearance wall; 323. Fourth sealing ring; 324. First abutting step; 325. Second abutting step; 33. Mounting boss; 331. Fastener; 40. Through rod; 41. Through pipe; 42. High-pressure sealing plug; 43. Sixth sealing ring; 200. Electrical connection wire; 200a. Cable; 200b. Signal wire; 300. Central tube. Detailed Implementation

[0043] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0044] The electrical connection wire crossing device of the present invention will now be described with reference to the accompanying drawings.

[0045] like Figures 1 to 4 As shown, the present invention provides an electrical connection cable passage device, which includes a protective housing 10 and an adapter assembly. The protective housing 10 is used to connect to a power element and has a protective cavity 11 into which the electrical connection cable 200 and the central tube 300 of the power element extend. The adapter assembly includes a passage seat 20 and a fluid delivery connector 30. The passage seat 20 is disposed in the protective cavity 11 and has a passage hole 21 and a fluid flow channel 22. The passage hole 21 is used for the power connection cable 200 to pass through. The fluid delivery connector 30 is connected between the passage seat 20 and the central tube 300, and the fluid flow channel 22 is connected to the central tube 300 through the fluid delivery connector 30.

[0046] It should be noted that the electrical connection line crossing device of the present invention is used to connect with a power element so that the electrical connection line 200 of the power element can pass through and communicate with the central tube 300 of the power element to transport fluid. The power element can be a downhole motor, a submersible pump, etc., the electrical connection line 200 can be a cable 200a, a signal line 200b, etc., and the central tube 300 can be used to transport mud, drilling fluid, oil or other fluids. The electrical connection line crossing device of the present invention does not limit the type of power element, the type of electrical connection line 200, or the type of fluid transported by the central tube 300. Understandably, when the electrical connection cable crossing device is applied to drilling equipment, the power element is set as a downhole motor, and the central tube 300 of the power element is used to transport mud; and when the electrical connection cable crossing device is applied to oil production equipment, the power element is set as a front-end electric pump, and the central tube 300 of the power element is used to transport oil. The embodiments of the present invention are only described with the power element set as a downhole motor or submersible electric pump, and the electrical connection cable 200 set as a cable 200a and a signal line 200b as an example.

[0047] Specifically, a protective cavity 11 is formed inside the protective housing 10. The protective housing 10 is connected to the power element, so that the electrical connection line 200 and the central tube 300 of the power element can extend into the protective cavity 11. A through seat 20 is provided inside the protective cavity 11. The through seat 20 has a through hole 21 and a fluid flow channel 22. The electrical connection line 200 is set through the through hole 21, and the through seat 20 is connected to the central tube 300 through the fluid delivery connector 30, so that the fluid flow channel 22, the fluid delivery connector 30 and the central tube 300 are connected in sequence, realizing the delivery of fluid. In the electrical connection line passage device of this embodiment of the invention, the passage seat 20 is provided with a passage hole 21 for the power supply connection line 200 to pass through, and a fluid flow channel 22 for conveying fluid. The passage hole 21 and the fluid flow channel 22 are respectively provided on the passage seat 20 to effectively isolate the electrical connection line 200 and the fluid, preventing the fluid from contacting and corroding the electrical connection line 200. Moreover, the electrical connection line 200 is located in the protective cavity 11 of the protective shell 10, which effectively prevents the electrical connection line 200 from colliding with the external structure and causing damage. This achieves stable and reliable protection of the electrical connection line 200 during the oil extraction process and greatly improves the protection performance of the electrical connection line 200.

[0048] In this embodiment of the invention, a clearance step 23 is provided on the through-hole 20, and a clearance space 231 is formed between the clearance step 23 and the inner wall 111 of the protective cavity 11. The through-hole 21 communicates with the clearance space 231. Figures 4 to 7As shown, a clearance step 23 is provided on the through seat 20 at the position corresponding to the through hole 21. A clearance space 231 is provided between the clearance step 23 and the inner wall 111 of the protective cavity 11 to allow the electrical connection line 200 to pass through in sequence. This allows the electrical connection line 200 extending into the protective cavity 11 to pass through the clearance space 231 and the through hole 21 in sequence, improving the ease of installation of the electrical connection line 200. In addition, the fluid flow channel 22 is located on the side of the clearance step 23 facing away from the clearance space 231, effectively separating the fluid and the electrical connection line 200, preventing the fluid from flowing into the clearance space 231 and eroding and damaging the electrical connection line 200, further improving the reliability of protection.

[0049] In this embodiment of the invention, the through seat 20 includes a sealing section 24 and a connecting section 25. One end of the connecting section 25 is connected to the sealing section 24, and the other end of the connecting section 25 is connected to the fluid delivery connector 30. A through hole 21 is formed on the sealing section 24, and a clearance step 23 is formed on the connecting section 25. A fluid flow channel 22 is provided through the sealing section 24 and the connecting section 25. The sealing section 24 is sealed to the inner wall 111 of the cavity to block the clearance space 231.

[0050] like Figures 4 to 7 As shown, the sealing section 24 and the connecting section 25 are connected sequentially along the length of the protective cavity 11. The sealing section 24 has a through hole 21, and the connecting section 25 has a relief step 23 at the position corresponding to the through hole 21. A relief space 231 communicating with the through hole 21 is formed between the relief step 23 and the inner wall 111 of the cavity. The sealing section 24 is sealed to the inner wall 111 of the protective cavity 11 to prevent fluid from flowing into the relief space 231 and contacting the electrical connection line 200, and to prevent fluid from seeping into the interior of the power component along the electrical connection line 200 and causing damage to the power component. In addition, the fluid flow channel 22 is set through the sealing section 24 and the connecting section 25 to realize the delivery of fluid. The fluid flow channel 22 and the through hole 21 are spaced apart along the width direction of the protective cavity 11, and the fluid flow channel 22 and the relief space 231 are spaced apart along the width direction of the protective cavity 11, which effectively isolates the fluid from contacting the electrical connection line 200 and improves the reliability and stability of the protection. In addition, a first sealing ring 241 is sleeved on the outer side of the sealing section 24. The first sealing ring 241 is sandwiched between the sealing section 24 and the inner wall 111 of the cavity, which further improves the sealing reliability of the clearance space 231.

[0051] In this embodiment of the invention, the avoidance step 23 includes a first avoidance part 232 and a second avoidance part 233. The first avoidance part 232 is located between the sealing section 24 and the second avoidance part 233. The distance between the first avoidance part 232 and the inner wall 111 of the cavity is greater than the distance between the second avoidance part 233 and the inner wall 111 of the cavity.

[0052] like Figures 4 to 7As shown, the first clearance part 232 and the second clearance part 233 are arranged sequentially along the length of the protective cavity 11. The end of the through seat 20 where the second clearance part 233 is located is used to connect with the fluid delivery connector 30. The distance between the second clearance part 233 and the inner wall 111 of the cavity is smaller than the distance between the first clearance part 232 and the inner wall 111 of the cavity, which serves to avoid the fluid delivery connector 30 and improve the ease of installation of the fluid delivery connector 30. The distance between the first clearance part 232 and the inner wall 111 of the cavity is larger than the distance between the second clearance part 233 and the inner wall 111 of the cavity, which serves to avoid the electrical connection line 200 and facilitate the electrical connection line 200 to extend into the through hole 21, thus improving the ease of installation of the electrical connection line 200.

[0053] In this embodiment of the invention, the step 23 further includes an inclined avoidance part 234. One end of the inclined avoidance part 234 is connected to the first avoidance part 232, and the other end of the inclined avoidance part 234 is connected to the second avoidance part 233. The distance between the inclined avoidance part 234 and the inner wall 111 of the cavity is gradually reduced in the direction away from the first avoidance part 232.

[0054] like Figures 4 to 7 As shown, the two ends of the inclined clearance portion 234 are respectively connected to the first clearance portion 232 and the second clearance portion 233. The inclined clearance portion 234 is inclined to guide the extension direction of the electrical connection line 200, so that the electrical connection line 200 can extend smoothly along the inclined clearance portion 234 to the first clearance portion 232 and into the through hole 21, which further improves the ease of installation of the electrical connection line 200. In addition, the inclined clearance portion 234 reduces the bending angle of the electrical connection line 200, preventing the electrical connection line 200 from breaking due to long-term right-angle bending, which further improves the reliability of protection.

[0055] In this embodiment of the invention, a connecting groove 251 is provided at the end of the connecting section 25 away from the sealing section 24. The fluid flow channel 22 communicates with the connecting groove 251, and the fluid delivery connector 30 extends into and connects to the connecting groove 251. Figures 4 to 7 As shown, the fluid channel 22 penetrates the bottom wall of the connecting groove 251 and communicates with the connecting groove 251. The connecting groove 251 is used for the fluid delivery connector 30 to extend into, so that the fluid delivery connector 30 is connected in the connecting groove 251 and communicates with the fluid channel 22. The fluid channel 22, the fluid delivery connector 30 and the central tube 300 are connected in sequence, realizing the delivery of fluid through the fluid channel 22 to the central tube 300 or the delivery of fluid from the central tube 300 to the fluid channel 22. The fluid delivery connector 30 extending into the connecting groove 251 improves the sealing effect, prevents fluid leakage from the opening of the connecting groove 251, and improves the protection effect of the electrical connection line 200.

[0056] In this embodiment of the invention, the fluid delivery connector 30 includes a first connector portion 31 and a second connector portion 32. The first connector portion 31 extends into and is connected to the connecting groove 251. One end of the second connector portion 32 is connected to the first connector portion 31, and the other end of the second connector portion 32 is connected to the central tube 300.

[0057] like Figures 6 to 9 As shown, one end of the first connector 31 extends into the connecting groove 251, and the other end of the first connector 31 is detachably connected to the second connector 32. The end of the second connector 32 away from the first connector 31 is connected to the central tube 300, so that the fluid channel 22 can be connected to the central tube 300 in sequence through the first connector 31 and the second connector 32, realizing the transportation of fluid. The detachable connection between the first connector 31 and the second connector 32 improves the ease of assembly. By setting the second connector 32 between the first connector 31 and the central tube 300, it is convenient to connect the first connector 31 and the central tube 300.

[0058] In this embodiment of the invention, the first connector 31 has an extended flow channel 311, and the second connector 32 has an inclined flow channel 321. The extended flow channel 311 is connected to the connecting groove 251. One end of the inclined flow channel 321 is connected to the extended flow channel 311, and the other end of the inclined flow channel 321 is connected to the central tube 300. The central axis of the extended flow channel 311 is parallel to the central axis of the central tube 300, and the central axis of the inclined flow channel 321 is inclined.

[0059] like Figures 6 to 9 As shown, an extension channel for conveying fluid is formed in the first connector 31, and an inclined flow channel 321 for conveying fluid is formed in the second connector 32. The fluid flow channel 22, the extension flow channel 311, the inclined flow channel 321, and the central tube 300 are connected in sequence to realize fluid conveying. Both the extension flow channel 311 and the central tube 300 extend along the length of the protective cavity 11. The central axis of the extension flow channel 311 is parallel to the central axis of the central tube 300. The inclined flow channel 321 connects the extension flow channel 311 and the central tube 300, and the central axis of the inclined flow channel 321 is inclined to guide the fluid flow and connect the extension flow channel 311 and the central tube 300. This effectively prevents fluid conveying blockage when the extension flow channel 311 and the central tube 300 are misaligned, thus improving the smoothness of fluid conveying.

[0060] In this embodiment of the invention, an inclined clearance wall 322 is provided on the second connector portion 32, and the distance between the inclined clearance wall 322 and the inner wall 111 of the cavity gradually decreases in the direction away from the first connector portion 31. Figures 6 to 9As shown, the inclined clearance wall 322 is set on the same side as the clearance step 23. The inclined clearance wall 322 serves to guide the electrical connection line 200 to extend into the clearance space 231. The distance between the inclined clearance wall 322 and the inner wall 111 of the cavity gradually increases in the direction away from the power element, so as to facilitate the extension of the electrical connection line 200 into the clearance space 231, further improving the ease of installation of the electrical connection line 200.

[0061] In this embodiment of the invention, the first connector portion 31 includes a first connecting section 312 and a second connecting section 313. The first connecting section 312 extends into and is connected to the connecting groove 251. The second connecting section 313 is connected to the first connecting section 312. The second connecting section 313 extends into the second connector portion 32 and is connected to one end of the second connector portion 32. The central tube 300 extends into the second connector portion 32 and is connected to the other end of the second connector portion 32.

[0062] like Figures 6 to 9 As shown, the first connecting section 312 extends into the connecting groove 251, improving the sealing performance between the first connector 31 and the through seat 20. The second connecting section 313 extends into the second connector 32, improving the sealing performance between the first connector 31 and the second connector 32. The central tube 300 extends into the second connector 32, improving the sealing performance between the second connector 32 and the central tube 300. This effectively prevents fluid leakage from contacting the electrical connection wire 200 and prevents fluid from seeping into the power component, thus improving the stability of fluid transport.

[0063] Furthermore, a second sealing ring 3122 is fitted on the first connecting section 312, and the second sealing ring 3122 is sandwiched between the groove wall of the connecting groove 251 and the first connecting section 312. A third sealing ring 3131 is fitted on the second connecting section 313, and the third sealing ring 3131 is sandwiched between the cavity wall of the inclined flow channel 321 and the second connecting section 313. The second connecting section 313 and the second joint portion 32 are press-fitted. A fourth sealing ring 323 is fitted on the central tube 300, and the fourth sealing ring 323 is sandwiched between the cavity wall of the inclined flow channel 321 and the central tube 300. The second joint portion 32 and the central tube 300 are press-fitted. This greatly improves the sealing performance and further prevents fluid leakage.

[0064] In this embodiment of the invention, a limiting boss 3121 is provided on the first connecting segment 312, and the limiting boss 3121 abuts against the connecting segment 25. For example... Figures 6 to 9 As shown, a limiting boss 3121 is formed on the outer edge of the first connecting section 312. The limiting boss 3121 abuts against the connecting section 25 to position and install the first connector 31, thereby improving the ease of installation.

[0065] Furthermore, a first abutting step 324 is provided at one end of the second connector 32, and a second abutting step 325 is provided at the other end of the second connector 32. The first abutting step 324 is used to abut against the second connecting section 313 to position and install the first connector 31, and the second abutting step 325 is used to abut against the central tube 300 to position and install the second connector 32, thereby improving the ease of assembly.

[0066] In this embodiment of the invention, a flow guiding slope 2511 is provided on the bottom wall of the connecting groove 251, and the distance between the flow guiding slope 2511 and the side wall of the connecting groove 251 gradually increases in the direction away from the fluid flow channel 22. For example Figures 6 to 9 As shown, the guide ramp 2511 serves to guide the flow of fluid, allowing the fluid to flow from the fluid channel 22 into the extension channel 311 along the guide ramp 2511. The distance between the guide ramp 2511 and the side wall of the connecting groove 251 gradually increases in the direction away from the fluid channel 22, effectively preventing fluid transport blockage and improving the smoothness of fluid transport.

[0067] Furthermore, such as Figures 6 to 9 As shown, a waterproof cap 3123 is provided at the end of the first connecting section 312 away from the second connecting section 313. The waterproof cap 3123 extends into and is installed in the extended flow channel 311. The waterproof cap 3123 is used to separate the fluid from the first connecting section 312, preventing the high-pressure fluid from scouring and eroding the first connecting section 312 for a long time, thus extending its service life.

[0068] In this embodiment of the invention, the protective housing 10 includes a protective cylinder 12 and a mounting connector 13. The protective cylinder 12 has a protective cavity 11. The mounting connector 13 extends into the protective cavity 11 and is connected to the fluid delivery connector 30. The mounting connector 13 is used to connect to the power element.

[0069] like Figure 11 As shown, a protective cavity 11 is formed inside the protective cylinder 12. The through seat 20, the first connector 31, and the second connector 32 are all installed inside the protective cavity 11. The central tube 300 and the mounting connector 13 extend into the protective cavity 11. The protective cylinder 12 serves to protect the through seat 20, the first connector 31, the second connector 32, the central tube 300, and the mounting connector 13. The electrical connection wire 200 passes through the protective cavity 11, so that the protective cylinder 12 serves to protect the electrical connection wire 200, effectively preventing the electrical connection wire 200 from colliding with the external structure and causing mechanical damage, thus improving the protection performance of the electrical connection wire 200. Furthermore, the mounting connector 13 is used to connect to the power component, and the mounting connector 13 can be flexibly set according to the type, specification, and size of the power component, improving the installation convenience of the electrical connection wire through device.

[0070] In this embodiment of the invention, the fluid transfer connector 30 is provided with a mounting boss 33, and the mounting boss 33 is connected to the mounting connector 13 by a fastener 331. Figure 4 , Figure 10 and Figure 11 As shown, the mounting boss 33 is located on the second connector 32, and the mounting connector 13 extends into the protective cavity 11. The fastener 331 passes through the mounting boss 33 and connects with the mounting connector 13 to stably connect the mounting connector 13 to the protective cylinder 12. The connection is stable and reliable, effectively preventing the electrical connection wire from coming loose when passing through the device.

[0071] In this embodiment of the invention, a limiting step 131 is provided on the mounting connector 13, and the protective cylinder 12 abuts against the limiting step 131. Figures 4 to 11 As shown, a limiting step 131 is provided on the outer side of the mounting joint 13. The limiting step 131 is used to abut against the protective cylinder 12 to position and install the protective cylinder 12, which improves the ease of installation. In addition, a fifth sealing ring 132 is provided on the outer side of the mounting joint 13. The fifth sealing ring 132 is sandwiched between the inner wall 111 of the cavity and the mounting joint 13, which improves the sealing effect and effectively prevents external dust from entering the protective cavity 11.

[0072] In this embodiment of the invention, the adapter assembly further includes a through rod 40, which is disposed within the through hole 21, and an electrical connection wire 200 is threaded through the through rod 40. Figure 4 As shown, the through rod 40 is inserted into the through hole 21 and sealed to the hole wall of the through hole 21. An electrical connection line 200 is threaded through the through rod 40. The through rod 40 serves to fix the electrical connection line 200 and effectively prevents fluid from flowing into the clearance space 231 from the through hole 21. In addition, the through rod 40 is used to connect with an external connector to realize the transmission of electrical energy and signals.

[0073] Furthermore, such as Figure 4 As shown, the electrical connection line 200 includes a cable 200a and a signal line 200b. The cable 200a passes through the through rod 40 to fix the cable 200a in the through hole 21. A through tube 41 is provided inside the through rod 40. The through tube 41 is used for the signal line 200b to pass through and fix the signal line 200b. The through tube 41 can guide the signal line 200b through the through rod 40, which improves the ease of installation of the signal line 200b. A high-pressure sealing plug 42 is provided at the end of the through tube 41 facing the clearance space 231. The high-pressure sealing plug 42 is used to seal the through tube 41 to further improve the structural sealing performance. In addition, a sixth sealing ring 43 is provided on the outside of the through rod 40. The sixth sealing ring 43 is sandwiched between the hole wall of the through hole 21 and the through rod 40, which further prevents fluid from flowing into the clearance space 231 from the through hole 21, ensuring a stable and reliable seal.

[0074] In embodiments of the present invention, such as Figure 8 As shown, the cross-section of the fluid channel 22 is arc-shaped, and the fluid channel 22 surrounds the outer periphery of the through hole 21. The through hole 21 and the fluid channel 22 are spaced apart from the inside to the outside along the radial direction of the sealing section 24, which effectively isolates the electrical connection line 200 and the fluid. The arc-shaped arrangement of the fluid channel 22 increases the cross-sectional area, thereby increasing the flow rate of the fluid and further improving the smoothness of fluid transportation.

[0075] Furthermore, the present invention also provides a drilling equipment, which includes an electrical connection line crossing device as described above. Specifically, the drilling equipment includes a downhole motor, the power element is a downhole motor, the mounting connector 13 is connected to the downhole motor, the crossing hole 21 is used for the electrical connection lines 200 such as the cable 200a and signal line 200b of the downhole motor to pass through, and the fluid flow channel 22 is used for conveying mud into the central pipe 300 of the downhole motor through the fluid delivery connector 30. The specific structure of the electrical connection line crossing device is as described in the above embodiments. Since the drilling equipment adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0076] Furthermore, the present invention also provides an oil production device, which includes an electrical connection line crossing device as described above. Specifically, the oil production device includes a submersible electric pump, the power element is a submersible electric pump, the mounting joint 13 is connected to the outlet of the submersible electric pump, the crossing hole 21 is used for the electrical connection lines 200 such as the cable 200a and signal line 200b of the submersible electric pump to pass through, the central pipe 300 of the submersible electric pump delivers oil to the fluid flow channel 22 through the fluid delivery joint 30, the crossing rod 40 is connected to an external wet joint, and the end of the protective cylinder 12 away from the mounting joint 13 is connected to the production oil pipe. The specific structure of the electrical connection line crossing device is as described in the above embodiments. Since the oil production device adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0077] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0078] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0079] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0080] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An electrical connection line crossing device, characterized in that The electric connection wire penetrating device comprises: a protective shell (10) connected with a power element and having a protective cavity (11) for the electric connection wire (200) and the central pipe (300) of the power element to extend into; an adapter assembly comprising a penetrating seat (20) and a fluid delivery joint (30), the penetrating seat (20) is arranged in the protective cavity (11) and has a penetrating hole (21) for the electric connection wire (200) to pass through and a fluid flow channel (22), the fluid delivery joint (30) is connected between the penetrating seat (20) and the central pipe (300), and the fluid flow channel (22) is communicated with the central pipe (300) through the fluid delivery joint (30); the penetrating seat (20) has a relief step (23) formed between the penetrating seat (20) and the inner wall (111) of the protective cavity (11), the penetrating hole (21) is communicated with the relief space (231), the penetrating seat (20) comprises a sealing section (24) and a communicating section (25), one end of the communicating section (25) is connected with the sealing section (24), the other end of the communicating section (25) is connected with the fluid delivery joint (30), the penetrating hole (21) is arranged on the sealing section (24), the relief step (23) is arranged on the communicating section (25), the fluid flow channel (22) is arranged through the sealing section (24) and the communicating section (25), and the sealing section (24) is sealingly connected with the inner wall (111) to block the relief space (231).

2. The electrical line crossing device of claim 1, wherein, the relief step (23) comprises a first relief part (232) and a second relief part (233), the first relief part (232) is located between the sealing section (24) and the second relief part (233), and the distance between the first relief part (232) and the inner wall (111) is greater than the distance between the second relief part (233) and the inner wall (111).

3. An electrical connection line crossing device according to claim 2, characterised in that, the relief step (23) further comprises an inclined relief part (234), one end of the inclined relief part (234) is connected with the first relief part (232), the other end of the inclined relief part (234) is connected with the second relief part (233), and the distance between the inclined relief part (234) and the inner wall (111) is tapered away from the first relief part (232).

4. The electrical line crossing device of claim 1, wherein, one end of the communicating section (25) away from the sealing section (24) is provided with a connecting groove (251), the fluid flow channel (22) is communicated with the connecting groove (251), and the fluid delivery joint (30) extends into and is connected in the connecting groove (251).

5. An electrical connection line crossing device according to claim 4, characterized in that The fluid delivery connector (30) comprises a first connector part (31) and a second connector part (32), the first connector part (31) extends into and connects to the connecting groove (251), one end of the second connector part (32) is connected to the first connector part (31), and the other end of the second connector part (32) is connected to the central pipe (300).

6. An electrical connection line crossing device according to claim 5, characterised in that, The first connector part (31) has an extension flow channel (311) therein, the second connector part (32) has an inclined flow channel (321) therein, the extension flow channel (311) is in communication with the connecting groove (251), one end of the inclined flow channel (321) is in communication with the extension flow channel (311), and the other end of the inclined flow channel (321) is in communication with the central pipe (300), the central axis of the extension flow channel (311) is arranged in parallel to the central axis of the central pipe (300), and the central axis of the inclined flow channel (321) is arranged obliquely.

7. The electrical connection line crossing device according to claim 5, characterized in that An inclined avoiding wall (322) is formed on the second connector part (32), and the distance between the inclined avoiding wall (322) and the cavity inner wall (111) is arranged to be tapered in a direction away from the first connector part (31).

8. The electrical line crossing device of claim 5, wherein, The first connector part (31) comprises a first connecting section (312) and a second connecting section (313), the first connecting section (312) extends into and connects to the connecting groove (251), the second connecting section (313) is connected to the first connecting section (312), the second connecting section (313) extends into the second connector part (32) and is connected to one end of the second connector part (32), and the central pipe (300) extends into the second connector part (32) and is connected to the other end of the second connector part (32).

9. An electrical connection line crossing device according to claim 8, characterised in that, A limiting boss (3121) is arranged on the first connecting section (312), and the limiting boss (3121) abuts against the communication section (25).

10. The electrical line crossing device of claim 4, wherein, A flow guide slope (2511) is formed on the groove bottom wall of the connecting groove (251), and the distance between the flow guide slope (2511) and the groove side wall of the connecting groove (251) is arranged to be gradually expanded in a direction away from the fluid flow channel (22).

11. An electrical connection line crossing device according to any one of claims 1 to 10, characterized in that The protective shell (10) comprises a protective cylinder (12) and a mounting connector (13), the protective cylinder (12) has the protective cavity (11) therein, the mounting connector (13) extends into the protective cavity (11) and is connected to the fluid delivery connector (30), and the mounting connector (13) is used to be connected to the power element.

12. The electrical connection line crossing device according to claim 11, characterized in that A mounting boss (33) is arranged on the fluid delivery connector (30), and the mounting boss (33) is connected to the mounting connector (13) through a fastener (331).

13. The electrical connection line crossing device of claim 11, wherein, A limiting step (131) is formed on the mounting connector (13), and the protective cylinder (12) abuts against the limiting step (131).

14. An electrical connection line crossing arrangement according to any one of claims 1 to 10, characterised in that, The adapter assembly further comprises a through rod (40), the through rod (40) is arranged in the through hole (21), and the electric connection wire (200) is arranged to pass through the through rod (40).

15. An electrical connection line crossing arrangement according to any one of claims 1 to 10, characterized in that The fluid flow channel (22) is provided in an arc shape in cross section, and the fluid flow channel (22) is provided around the outer periphery of the through hole (21).

16. A drilling apparatus, characterized by The drilling apparatus includes the electric connection line passing device according to any one of claims 1 to 15.

17. An oil production apparatus, characterized by The oil production apparatus includes the electric connection line passing device according to any one of claims 1 to 15.

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