CN213367003U - Coaxial single-core high-temperature-resistant high-pressure-resistant sealing connector - Google Patents
Coaxial single-core high-temperature-resistant high-pressure-resistant sealing connector Download PDFInfo
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- CN213367003U CN213367003U CN202021485815.0U CN202021485815U CN213367003U CN 213367003 U CN213367003 U CN 213367003U CN 202021485815 U CN202021485815 U CN 202021485815U CN 213367003 U CN213367003 U CN 213367003U
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Abstract
The utility model discloses a coaxial single-core high temperature and high pressure resistant sealing connector, which comprises a bearing disc and a rotary sliding sleeve; the rotary sliding sleeve comprises a cylindrical joint, a central copper sleeve is nested in the other end of the cylindrical joint, and the central copper sleeve is also provided with an electric needle wiring channel penetrating through one end of the cylindrical joint; the bearing plate includes central electrically conductive needle, and central electrically conductive movably nested adopts in rotatory sliding sleeve the utility model discloses the scheme has realized coaxial transmission multicore cable, and the pipeline for the oil development can adopt the nimble swivelling joint of screwed joint and can not make cable kink damage in the connector, and simple structure has reduced the processing degree of difficulty.
Description
Technical Field
The utility model relates to a technical field is connected to instrument and instrument in the pit, especially relates to a coaxial single core high temperature resistant high pressure seal connector.
Background
During the production of oil and gas, a great deal of downhole instruments and tools are needed, a plurality of instruments and tools are generally needed for one time of well descending, and connectors between the tools play a crucial role. The connector completes power supply and signal transmission between the instruments. The power supply provided by the ground instrument and the issued control signal are sent to each underground tool or instrument step by step, and the underground signal is transmitted back to the ground instrument correctly in real time. Deep stratum seeds of the oil and gas well are surrounded by a high-temperature high-pressure severe environment with oil mud mixture. The traditional connector is wrapped and sealed by a rubber sleeve. However, under the conditions of high temperature and high pressure, the insulation performance of the rubber sleeve is reduced, and the amplitude of the reduction of the insulation performance threatens the normal transmission of the electric signals of the conducting layer, so that the signals are distorted, and wrong conclusions are caused. Moreover, either a single core or a plurality of cores are distributed on the sealing block relatively independently, and cannot rotate randomly.
In the oil well logging perforation process, a plurality of gun barrels need to be put into a well once, the gun barrels are connected through joints, the joints are hollow and used for placing wires, wires are easily stranded due to the traditional joint structure, and the short circuit/short circuit is caused.
The utility model with publication number of CN 204905553U discloses a high temperature and high pressure resistant sealing connector, which comprises a jack and a contact pin, wherein the outer wall of the jack is wrapped with a rubber sleeve, and an insulating protective layer is arranged between the rubber sleeve and the jack; the insulating protective layer exceeds the jack body at the insertion end of the jack, and a step is formed on the inner wall of the part exceeding the jack, and the step is flush with the port of the jack; the insulating protective layer exceeds the inside of the jack part and is equal to the outer diameter of the pin shell. The connector is provided with the rubber sleeve outside the jack, and the insulating protective layer is arranged between the rubber sleeve and the jack, so that the connector still can keep good insulating property under high temperature and high pressure. The utility model discloses a high temperature resistant, highly compressed sealing connector who is coaxial multicore equally and can not rotate wantonly around the connector axle center.
SUMMERY OF THE UTILITY MODEL
The utility model provides a solve above-mentioned problem, provide a coaxial single core high temperature resistant high pressure seal connector, this patent has designed and has been used in the multicore sliding sleeve, has avoided the wire between the rotary part to connect, changes the mode that uses the gold plating copper of different external diameters to guan reed nestification as the multicore connector. The installation and use on the spot are convenient, and the dependence on the skilled operation of people in the construction link is reduced. On the premise of ensuring coaxial free rotation, the high-efficiency supply and transmission of underground power supply and signals can be effectively ensured.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the coaxial single-core high-temperature and high-pressure resistant sealing connector is 1, is of a cylindrical or square structure and comprises a pressure bearing disc and a rotary sliding sleeve; the rotary sliding sleeve comprises a cylindrical joint, a central copper sleeve is nested in the other end of the cylindrical joint, and the central copper sleeve is also provided with an electric needle wiring channel penetrating through one end of the cylindrical joint; the pressure bearing disc comprises a central conductive needle and an insulating needle, the insulating needle is sleeved outside the central conductive needle, a limiting step is arranged between the central conductive needle and the insulating needle, and sealing is realized by interference fit and a sealing O-shaped ring; an insulating ring is nested outside the central conductive pin; the central conductive needle and the insulating ring are in interference fit and provided with a limiting step; a sealing ring is also arranged between the central conductive pin and the insulating ring; the central conductive pin can be movably nested in the rotary sliding sleeve.
In the connector, one end of the insulating ring is also provided with a threaded hole for fixing.
In the connector, the metal ring for bearing is further nested outside the insulating ring, and a limiting step is arranged between the metal ring and the insulating ring.
In the connector, the pressure bearing disc is a single-core connector in the connector;
in the above connector, the joint is a PEEk joint.
In the connector, the sealing ring is a sealing O-shaped ring made of fluororubber.
In the connector, the insulating needle and the insulating ring are made of PEEK material.
In the connector, the metal ring is made of 40CrMo metal material.
Adopt the utility model discloses a beneficial effect of production does:
1. can realize coaxial transmission multicore cable, the pipeline for the oil development can adopt the nimble swivelling joint of screwed joint and can not make cable kink damage in the connector, does not need other joint switching, two barrel about the lug connection can, easy to assemble, the on-the-spot wiring is few, simple structure has reduced the processing degree of difficulty.
2. Misoperation in the field use process is reduced, and human errors caused by field wiring are avoided.
3. The pipe nipple releasing device is applied to a pipe nipple releasing structure, can realize random threaded rotary connection, and realizes recycling of pipe nipples.
Drawings
FIG. 1 is a schematic view of the assembly structure of the present invention;
fig. 2 is a schematic structural view of the pressure-bearing wire passing device of the present invention;
fig. 3 is a schematic view of the cross-sectional structure of the pressure-bearing wire passing device of the present invention;
fig. 4 is a schematic cross-sectional view of a pressure-bearing wire passing device according to another embodiment of the present invention;
fig. 5 is a schematic structural view of the rotary sliding sleeve of the present invention;
FIG. 6 is a schematic view of a cross-section of the rotary sliding sleeve according to the present invention;
fig. 7 is a schematic structural view of the releasable nipple of the present invention;
fig. 8 is the utility model discloses be applied to the section structure sketch map of nipple joint that can release.
In the figure:
1-a perforating gun barrel; 2-a double-core plug at the lower end of the gun; 3-connecting a joint; 4-single core connector in the joint; 5, a single-core pressure-bearing wire passing device; 6, a check ring; 7-a single-core plug at the upper end of the gun; 8, rotating the sliding sleeve; 801-joint; 802-outer copper sleeve; 803 — central copper sheathing; 804-electric needle wiring channel; 805-crown spring wiring channel; 9, sealing rings; 10, a pressure bearing disc; 101-central conductive pin, 102-insulating pin, 103-hollow conductive cylinder, 104-insulating ring, 105-metal ring, 106-sealing ring, 107-threaded hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Referring to fig. 1 to 5, the patent discloses a coaxial single-core high temperature and high pressure resistant sealing connector, which is a cylindrical or square structure and comprises a pressure bearing disc 10 and a rotary sliding sleeve 8; the rotary sliding sleeve 8 comprises a cylindrical joint 801, a central copper sleeve 803 is nested in the other end of the cylindrical joint 801, and the central copper sleeve 803 is further provided with an electric needle wiring channel 804 penetrating through one end of the cylindrical joint 801; the pressure bearing disc 10 comprises a central conductive pin 101 and an insulating pin 102, the insulating pin 102 is sleeved outside the central conductive pin 101, a limiting step is formed between the central conductive pin 101 and the insulating pin 102, and sealing is achieved by interference fit and a sealing O-shaped ring; an insulating ring 104 is nested outside the central conductive pin 101; the central conductive pin 101 and the insulating ring 104 are in interference fit and provided with a limiting step; a sealing ring 106 is also arranged between the central conductive pin 101 and the insulating ring 104; the central conductive pin 101 is movably nested in the rotary sliding sleeve 8.
Referring to fig. 2 and 3, in addition to the technical features of fig. 1, the coaxial dual-core high temperature and high pressure resistant sealed connector of the present invention further includes an insulating pin 102, a hollow conductive cylinder 103 and an insulating ring 104; the insulating needle 102 is sleeved outside the central conductive needle 101, a limiting step is formed between the insulating needle and the central conductive needle, and sealing is achieved by interference fit and a sealing O-shaped ring; the hollow conductive cylinder 103 is sleeved outside the insulating needle 102, a limiting step is arranged between the insulating needle 102 and the hollow conductive cylinder, and sealing is realized by interference fit and a sealing O-shaped ring; the insulating ring 104 is sleeved outside the hollow conductive cylinder 103, a limiting step is arranged between the insulating ring and the hollow conductive cylinder 103, sealing is achieved by using interference fit and a sealing O-shaped ring, and the hollow conductive cylinder 103 is movably nested in the rotary sliding sleeve 8 through the outer copper sleeve 802. The central conductive needle 101 and the hollow conductive cylinder 103 are both processed by beryllium copper and subjected to gold plating, so that the conductivity and corrosion resistance in severe environment are guaranteed; the insulating needle 102 and the insulating ring 104 are both made of a high-temperature and high-pressure resistant PEEK material; the sealing rings are all made of high-temperature-resistant and anti-corrosion materials.
In order to further enhance the high-pressure resistance, a layer of metal ring 105 can be further arranged, the metal ring 105 is sleeved outside the insulating ring 104, a limiting step is arranged between the metal ring 105 and the insulating ring 104, and sealing is achieved by interference fit and a sealing O-shaped ring.
In the coaxial dual-core high-temperature and high-pressure resistant sealed connector of the present invention, the outer copper sleeve 802 is fixedly nested inside one end of the cylindrical joint 801, and the outer copper sleeve 802 is further communicated with the crown spring wiring channel 805 running through the other end of the cylindrical joint 801; an insulating needle 102, a hollow conductive cylinder 103 and an insulating ring 104 are sequentially nested outside the central conductive needle 101; the central conductive needle 101, the insulating needle 102, the hollow conductive cylinder 103 and the insulating ring 104 are in interference fit and provided with a limiting step; a sealing ring 106 is also arranged among the central conductive needle 101, the insulating needle 102, the hollow conductive cylinder 103 and the insulating ring 104; more than one pair of the outer copper sleeve 802, the crown spring wiring channel 805, the insulating needle 102 and the hollow conductive cylinder 103 are arranged in pairs.
In the coaxial multi-core high temperature and high pressure resistant sealed connector of the utility model, a sealing ring 106 is arranged among the central conductive needle 101, the insulating needle 102, the hollow conductive cylinder 103 and the insulating ring 104; the outer copper sleeve 802, the crown spring wiring channel 805, the insulating pin 102 and the hollow conductive cylinder 103 are arranged in pairs, and the multi-core purpose can be achieved through multiple pairs of nesting.
The insulating ring 104 is further provided with a screw hole 107 at one end for fixing.
And a metal ring 105 for bearing is further nested outside the insulating ring 104, and a limiting step is arranged between the metal ring 105 and the insulating ring 104.
The pressure bearing disc 10 is a connector inner double-core connector;
the joint 801 is a PEEk joint and the outer copper sleeve 802 is a gold plated copper crown spring.
The seal ring 106 is a sealing O-ring made of fluororubber.
The insulating needle 102 and the insulating ring 104 are made of PEEK material.
The metal ring 105 is made of 40CrMo metal material.
The double-core pressure-bearing wire passing device is also called as a joint inner double-core connector, a pressure-bearing disc or a sealing plug and is used for signal transmission under the conditions of high temperature and high pressure in the petroleum logging device.
The rotary sliding sleeve is also called as an outer copper sleeve or a female seat, is also used for signal transmission under high-temperature and high-pressure conditions in the oil logging device, and is matched and connected with the bearing disc.
The hollow conductive cylinder, also called hollow needle, is used for the transmission of electrical signals.
Coaxial single-core high temperature resistant high pressure seal connector in the embodiment be two core structures, 3 cores, 4 cores, 5 core's structure is through the conducting section of thick bamboo of the more hollow of one deck or multilayer diameter of overlapping again in the outside of the hollow conducting section of thick bamboo 103, analogize to realize the multicore with this.
The O-shaped sealing ring is made of a fluororubber material. Fluororubbers (fluororubers) are synthetic polymer elastomers containing fluorine atoms in carbon atoms in the main chain or side chains. The introduction of fluorine atoms endows the rubber with excellent heat resistance, oxidation resistance, oil resistance, corrosion resistance and atmospheric aging resistance
The peek is polyether ether ketone, is a special engineering plastic with excellent properties of high temperature resistance, self lubrication, easy processing, high mechanical strength and the like, and can be manufactured and processed into various mechanical parts.
H62 Brass represents ordinary brass having an average copper content of 62%
The metal ring 40CrMo has high strength, high hardenability, good toughness, small deformation during quenching, and high creep strength and endurance strength at high temperature.
The coaxial single-core high-temperature and high-pressure resistant sealing connectors are directly connected by using electric wires.
Referring to fig. 7 and 8, for an embodiment of the present invention, which uses a reusable threaded connection type short connection device, the connector includes a pressure-bearing plate 10 and a rotary sliding sleeve 8, the pressure-bearing plate 10 and the rotary sliding sleeve 8 are packaged at two ends of the connector and movably nested with the rotary sliding sleeve 8 and the pressure-bearing plate 10 of the other two connectors respectively using the connector axis as the rotation axis, and the connector is movably connected with the connector axis in a threaded manner.
The connector comprises a single-core connector A and double-core connectors (B and C), wherein the single-core connector A comprises a single-core connector 4 and a single-core pressure-bearing wire passing device 5 in a connector, and the double-core connector comprises a pressure-bearing disc 10 and a rotary sliding sleeve 8; the single-core connector 4 and the single-core pressure-bearing wire passing device in the connector are the lower end of a connector (a double-core connector B) which is in cascade connection, and a control signal and a power supply of the single-core connector A need to be transmitted to a rear-stage connector (a double-core connector C); the rotary sliding sleeve 8 and the pressure bearing disc 10 are double-core connectors (B, C) at the upper ends, wherein the central needle 101 is a cascade needle, is connected with a single-core pressure bearing wire passing device 5 of a preceding stage short circuit (single-core connector A) and receives signals transmitted from the preceding stage, and the hollow conductive cylinder 103 is a signal output needle of an outer conductive cylinder, namely the double-core connector (B, C), and outputs underground instrument control signals, such as detonation signals of a magnetoelectric detonator, a large-resistance igniter and the like.
This patent has designed and has been used in the multicore sliding sleeve, has avoided the wire between the rotary part to connect, changes the mode that uses the gold plating copper crown spring nestification of different external diameters as multicore connector. The installation and use on the spot are convenient, and the dependence on the skilled operation of people in the construction link is reduced. Misoperation in the field use process is reduced, and human errors caused by field wiring are avoided.
Can realize coaxial transmission multicore cable, the pipeline for the oil development can adopt the nimble swivelling joint of screwed joint and can not make cable kink damage in the connector, does not need other joint switching, two barrel about the lug connection can, easy to assemble, the on-the-spot wiring is few, simple structure has reduced the processing degree of difficulty.
The pipe nipple releasing device is applied to a pipe nipple releasing structure, can realize random threaded rotary connection, and realizes recycling of pipe nipples. The foregoing is a more detailed description of the present invention taken in conjunction with the accompanying drawings, which are not intended to limit the invention to the particular embodiments described herein. For those skilled in the art to which the invention pertains, equivalent substitutes or obvious modifications may be made without departing from the spirit of the invention, and the same properties or uses are deemed to be within the scope of the invention as determined by the claims as filed.
Claims (8)
1. The utility model provides a coaxial single core high temperature and high pressure resistant sealing connector which characterized in that: the connector is of a cylindrical or square structure and comprises a pressure bearing disc (10) and a rotary sliding sleeve (8); the rotary sliding sleeve (8) comprises a cylindrical joint (801), a central copper sleeve (803) is nested in the other end of the cylindrical joint (801), and the central copper sleeve (803) is further provided with an electric needle wiring channel (804) penetrating through one end of the cylindrical joint (801); the pressure bearing disc (10) comprises a central conductive needle (101) and an insulating needle (102), the insulating needle (102) is sleeved outside the central conductive needle (101), a limiting step is formed between the central conductive needle and the insulating needle, and sealing is achieved by interference fit and a sealing O-shaped ring; an insulating ring (104) is nested outside the central conductive pin (101); the central conductive needle (101) and the insulating ring (104) are in interference fit and provided with a limiting step; a sealing ring (106) is also arranged between the central conductive pin (101) and the insulating ring (104); the central conductive needle (101) can be movably nested in the rotary sliding sleeve (8).
2. The coaxial single-core high temperature and high pressure resistant sealed connector of claim 1, wherein: the bearing disc (10) is a single-core connector in the connector.
3. The coaxial single-core high temperature and high pressure resistant sealed connector of claim 1, wherein: the joint (801) is a PEEk joint.
4. The coaxial single-core high temperature and high pressure resistant sealed connector of claim 1, wherein: the sealing ring (106) is a sealing O-shaped ring made of fluororubber.
5. The coaxial single-core high temperature and high pressure resistant sealed connector of claim 1, wherein: the insulation needle (102) and the insulation ring (104) are made of PEEK material.
6. The coaxial single-core high temperature and high pressure resistant sealed connector of claim 1, wherein: one end of the insulating ring (104) is also provided with a threaded hole (107) for fixing.
7. The coaxial single-core high temperature and high pressure resistant sealed connector of claim 1, wherein: a metal ring (105) used for bearing is further nested outside the insulating ring (104), and a limiting step is arranged between the metal ring (105) and the insulating ring (104).
8. The coaxial single-core high temperature and high pressure resistant sealed connector of claim 7, wherein: the metal ring (105) is made of 40CrMo metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021485815.0U CN213367003U (en) | 2020-07-24 | 2020-07-24 | Coaxial single-core high-temperature-resistant high-pressure-resistant sealing connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021485815.0U CN213367003U (en) | 2020-07-24 | 2020-07-24 | Coaxial single-core high-temperature-resistant high-pressure-resistant sealing connector |
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| Publication Number | Publication Date |
|---|---|
| CN213367003U true CN213367003U (en) | 2021-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021485815.0U Active CN213367003U (en) | 2020-07-24 | 2020-07-24 | Coaxial single-core high-temperature-resistant high-pressure-resistant sealing connector |
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| Country | Link |
|---|---|
| CN (1) | CN213367003U (en) |
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- 2020-07-24 CN CN202021485815.0U patent/CN213367003U/en active Active
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