CN217062643U

CN217062643U - Pressure-bearing sealing combination device for petroleum logging high-temperature and high-pressure environment

Info

Publication number: CN217062643U
Application number: CN202220320767.2U
Authority: CN
Inventors: 孙长勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-02-17
Filing date: 2022-02-17
Publication date: 2022-07-26
Anticipated expiration: 2032-02-17

Abstract

The utility model discloses a pressure-bearing sealing composite set for oil logging high temperature high pressure environment, including socket and plug, be provided with the wire in the socket, the outside of socket is provided with the sealing rubber cover, the outside of sealing rubber cover is provided with the socket protecting crust, be provided with the sealing ring between the inner wall of socket protecting crust and the one end of sealing rubber cover, the surface of plug is provided with the plug seal cover, the outside of plug seal cover is provided with the plug protecting crust, the surface of socket protecting crust just is close to one side fixedly connected with stationary ring seat of plug protecting crust, the surface of stationary ring seat is provided with the thread bush, one side and the plug protecting crust threaded connection of thread bush, the utility model relates to an oil logging technical field. The pressure-bearing sealing combination device for the petroleum logging high-temperature and high-pressure environment improves the insulation reliability of one side of the pressure-bearing sealing combination device, which is in contact with an external slurry environment, and can meet normal logging construction.

Description

Pressure-bearing sealing combination device for petroleum logging high-temperature and high-pressure environment

Technical Field

The utility model relates to an oil logging technical field specifically is a pressure-bearing seal composite set for oil logging high temperature high pressure environment.

Background

Logging is a method for measuring geophysical parameters by using the geophysical properties of a rock stratum, such as electrochemical properties, conductive properties, acoustic properties, radioactivity and the like, and belongs to one of the applied geophysical methods. During petroleum drilling, logging, also called well completion electrical logging, is required after drilling to a designed well depth, so as to obtain various petroleum geology and engineering technical data as original data for well completion and oil field development. The bearing seal combination device for petroleum engineering well logging is a special bearing seal combination device from a single core to multiple cores, and various well logging instruments with detectors or wires distributed in slurry are used, so that the bearing seal combination device is very wide in application.

In practical use, the pressure-bearing sealing combination device at least has the following defects: because the severe environment under the petroleum well has high requirements on the high temperature resistance, high pressure resistance and electric insulation performance of various pressure-bearing sealing combination devices, the side which is in contact with the slurry environment under the petroleum well has the defect that the insulation is easy to lose efficacy; the defect directly causes that the underground instrument can not work normally, and not only influences normal logging construction but also causes logging failure in serious cases.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects, the utility model provides a pressure-bearing seal combination device for oil logging high temperature high pressure environment has improved the insulating reliability of pressure-bearing seal combination device and outside mud environmental contact one side, can satisfy normal logging construction.

In order to achieve the purpose, the technical proposal provided by the utility model is that the pressure-bearing sealing combination device for the high-temperature and high-pressure environment of the oil logging comprises a socket and a plug, a lead is arranged in the socket, a sealing rubber sleeve is arranged outside the socket, a socket protective shell is arranged outside the sealing rubber sleeve, a sealing ring is arranged between the inner wall of the socket protective shell and one end of the sealing rubber sleeve, one end of the lead sequentially penetrates through the sealing rubber sleeve, the sealing ring and the socket protective shell and extends to the outside of the socket protective shell, the surface of the plug is provided with a plug sealing sleeve, the outside of the plug sealing sleeve is provided with a plug protective shell, a fixed ring seat is fixedly connected with one side of the surface of the socket protective shell, which is close to the plug protective shell, the surface of the fixed ring seat is provided with a threaded sleeve, and one side of the threaded sleeve is in threaded connection with the plug protective shell;

the sealing ring comprises a fixing plate, a first conical sealing column is fixedly connected to one side of the fixing plate, a sealing fixing cylinder is fixedly connected to the other side of the fixing plate, a conical hole is formed in the sealing fixing cylinder, a through hole matched with a lead is formed in the center of the first conical sealing column, and the conical hole and the through hole are coaxially arranged;

one end of the sealing rubber sleeve, which is close to the sealing ring, is provided with a second conical sealing column matched with the conical hole.

Preferably, the socket comprises a fixing base, a connecting cylinder is arranged in the fixing base, a first fixing shell and a second fixing shell are sequentially arranged at two ends of the socket, and fixing grooves for fixing the first fixing shell and the second fixing shell are formed in the surface of the socket.

Preferably, the connecting cylinder comprises a cylinder body, a pressing piece is arranged at one end of the cylinder body, a limiting ring is arranged at the other end of the cylinder body, the connecting cylinder is made of a metal material, and the fixing base, the first fixing shell and the second fixing shell are made of high-temperature-resistant insulating materials.

Preferably, the plug includes unable adjustment base, set up the contact post in the unable adjustment base, one side of unable adjustment base still is provided with compound cable, the one end and the compound cable of contact post are connected.

Preferably, an inclined plane is arranged on the inner side of one end of the plug sealing sleeve, and a circular table face matched with the inclined plane is arranged at one end, close to the plug sealing sleeve, of the sealing rubber sleeve.

Preferably, one end of the plug protective shell is provided with a sealing ring.

Preferably, the inner wall of the sealing rubber sleeve is provided with a first protruding ring, the surface of the second fixing shell is provided with a groove matched with the first protruding ring, the inner wall of the plug protecting shell is provided with a second protruding ring, and the inner wall of the plug sealing sleeve is provided with a third protruding ring.

The utility model adopts the above technical scheme, beneficial effect includes: according to the pressure-bearing sealing combination device for the petroleum logging high-temperature and high-pressure environment, the sealing rubber sleeve is arranged on the surface of the socket, the socket protective shell is arranged on the surface of the sealing rubber sleeve, and the sealing ring is arranged between one end of the sealing rubber sleeve and the inside of the socket protective shell, so that multiple sealing is realized, slurry is prevented from entering the socket along the surface of a wire, and the insulation reliability is high; meanwhile, a plug sealing sleeve is also arranged on the surface of the plug, a plug protection shell is arranged on the surface of the plug, after the socket is connected with the plug, the plug sealing sleeve is tightly connected with one side of a sealing rubber sleeve to realize sealing, and meanwhile, after the plug protection shell is connected with the socket protection shell through a threaded sleeve, a sealing ring is also arranged at the joint, so that the sealing effect is further improved, mud is prevented from entering the interior of the joint of the socket and the plug, and the insulation reliability is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of the overall structure of the present invention;

FIG. 3 is a schematic structural view of the connecting cylinder of the present invention;

fig. 4 is a perspective view of the sealing rubber sleeve of the present invention;

fig. 5 is a first perspective view of the sealing ring of the present invention;

fig. 6 is a second perspective view of the sealing ring of the present invention.

In the figure: 1-socket, 101-fixed base, 102-connecting cylinder, 1021-cylinder, 1022-compressing piece, 1023-limit ring, 103-first fixed shell, 104-second fixed shell, 105-fixed groove, 2-plug, 201-fixed base, 202-contact column, 203-composite cable, 3-lead, 4-sealing rubber sleeve, 41-second conical sealing column, 42-round table surface, 5-socket protective shell, 6-sealing ring, 61-fixed plate, 62-first conical sealing column, 63-sealing fixed cylinder, 7-plug sealing sleeve, 8-plug protective shell, 9-fixed ring seat, 10-thread sleeve, 11-sealing ring, 12-first convex ring, 13-second convex ring, 14-third raised ring, 15-inclined plane.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The first embodiment is as follows: referring to fig. 1-6, the present invention provides a technical solution: a bearing and sealing combined device for an oil logging high-temperature high-pressure environment comprises a socket 1 and a plug 2, wherein a lead 3 is arranged in the socket 1, a sealing rubber sleeve 4 is arranged outside the socket 1, a socket protective shell 5 is arranged outside the sealing rubber sleeve 4, a sealing ring 6 is arranged between the inner wall of the socket protective shell 5 and one end of the sealing rubber sleeve 4, one end of the lead 3 sequentially penetrates through the sealing rubber sleeve 4, the sealing ring 6 and the socket protective shell 5 and extends to the outside of the socket protective shell 5, the sealing ring 6 comprises a fixing plate 61, a first conical sealing column 62 is fixedly connected to one side of the fixing plate 61, a sealing fixing cylinder 63 is fixedly connected to the other side of the fixing plate 61, a conical hole is formed in the sealing fixing cylinder 63, a through hole matched with the lead 3 is formed in the center of the first conical sealing column 62, the conical hole and the through hole are coaxially arranged, a second conical sealing column 41 matched with the conical hole is arranged at one end, close to the sealing ring 6, of the sealing rubber sleeve 4, the wire 3 passes second toper seal post 41 in proper order, sealed solid fixed cylinder 63 and first toper seal post 62, the lateral wall of the sealed post 41 of second toper is extrudeed through the bell mouth in the sealed solid fixed cylinder 63, utilize the tight surface of tight wire 3 of the tight inner wall clamp of second toper seal post 41, the leakproofness is improved, the one end of socket protecting crust 5 is provided with the sealed hole with the sealed post 62 adaptation of first toper, the sealed post 62 surface of pore wall extrusion through this sealed hole, the leakproofness between socket protecting crust 5 and the sealed post 62 of first toper has been improved on the one hand, on the other hand has also improved the leakproofness between sealed post 62 of first toper and the wire 3, avoid inside mud gets into the socket along the surface of wire 3, the insulating nature has been improved.

The surface of the plug 2 is provided with a plug sealing sleeve 7, the outside of the plug sealing sleeve 7 is provided with a plug protective shell 8, and one side of the plug 2 is sealed by the plug sealing sleeve 7 and the plug protective shell 8; the surface of socket protecting crust 5 and the one side fixedly connected with fixed ring seat 9 that is close to plug protecting crust 8, the surface of fixed ring seat 9 is provided with thread bush 10, one side and the 8 threaded connection of plug protecting crust of thread bush 10, the one end of plug protecting crust 8 is provided with sealing washer 11, but through rotating thread bush 10 connecting plug protecting crust 8 and socket protecting crust 5, and improve the leakproofness through sealing washer 11, avoided mud to get into in the socket 1 from plug 2 and socket 1's junction.

The socket 1 comprises a fixing base 101, a connecting cylinder 102 is arranged in the fixing base 101, a first fixing shell 103 and a second fixing shell 104 are sequentially arranged at two ends of the socket 1, a fixing groove 105 used for fixing the first fixing shell 103 and the second fixing shell 104 is formed in the surface of the socket 1, the connecting cylinder 102 comprises a cylinder 1021, a pressing sheet 1022 is arranged at one end of the cylinder 1021, the pressing sheet 1022 forms a structure with a circular truncated cone-shaped side face, a conical hole is formed in the surface of the first fixing shell 103, and the side face of the pressing sheet 1022 is pressed by the conical hole when the first fixing shell 103 is installed, so that the pressing sheet 1022 clamps the lead 3, and the lead 3 is fixed;

the other end of barrel 1021 is provided with spacing ring 1023, and connecting cylinder 102 adopts metal material, can select for use copper, utilizes the electric conductivity of metal to realize being connected between wire 3 and the plug is direct, and fixed base 101, first stationary housing 103 and second stationary housing 104 adopt high temperature resistant insulating material, can adopt materials processing such as polyether ether ketone to make, have guaranteed to work in high temperature environment.

The plug 2 comprises a fixing base 201, a contact column 202 is arranged in the fixing base 201, a composite cable 203 is further arranged on one side of the fixing base 201, and one end of the contact column 202 is connected with the composite cable 203.

The inner side of one end of the plug sealing sleeve 7 is provided with an inclined plane 15, one end of the sealing rubber sleeve 4 close to the plug sealing sleeve 7 is provided with a round table surface 42 matched with the inclined plane 15, and the inclined plane 15 and the round table surface 42 are tightly attached together when the plug protective shell 8 and the socket protective shell 5 are connected, so that the sealing performance is improved.

The inner wall of the sealing rubber sleeve 4 is provided with a first bulge loop 12, the surface of the second fixing shell 104 is provided with a groove matched with the first bulge loop 12, so that the socket 1 is fixed, and the socket is prevented from being pulled out when the plug is pulled out; the inner wall of the plug protective shell 8 is provided with a second raised ring 13, and the inner wall of the plug sealing sleeve 7 is provided with a third raised ring 14, so that the plug 2 is fixed.

It is noted that, herein, relational terms such as first and second, and the like may be 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. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a pressure-bearing seals composite set for oil logging high temperature high pressure environment, includes socket (1) and plug (2), its characterized in that: the novel socket is characterized in that a lead (3) is arranged in the socket (1), a sealing rubber sleeve (4) is arranged outside the socket (1), a socket protective shell (5) is arranged outside the sealing rubber sleeve (4), a sealing ring (6) is arranged between the inner wall of the socket protective shell (5) and one end of the sealing rubber sleeve (4), one end of the lead (3) sequentially penetrates through the sealing rubber sleeve (4), the sealing ring (6) and the socket protective shell (5) and extends to the outside of the socket protective shell (5), a plug sealing sleeve (7) is arranged on the surface of the plug (2), a plug protective shell (8) is arranged outside the plug sealing sleeve (7), a fixed ring seat (9) is fixedly connected to one side, close to the plug protective shell (8), of the surface of the socket protective shell (5), and a threaded sleeve (10) is arranged on the surface of the fixed ring seat (9), one side of the threaded sleeve (10) is in threaded connection with the plug protective shell (8);

the sealing ring (6) comprises a fixing plate (61), a first conical sealing column (62) is fixedly connected to one side of the fixing plate (61), a sealing fixing cylinder (63) is fixedly connected to the other side of the fixing plate (61), a conical hole is formed in the sealing fixing cylinder (63), a through hole matched with the lead (3) is formed in the center of the first conical sealing column (62), and the conical hole and the through hole are coaxially arranged;

one end of the sealing rubber sleeve (4) close to the sealing ring (6) is provided with a second conical sealing column (41) matched with the conical hole.

2. The pressure-bearing and sealing combination device for the high-temperature and high-pressure environment of petroleum logging as claimed in claim 1, wherein: the socket (1) comprises a fixed base (101), a connecting cylinder (102) is arranged in the fixed base (101), a first fixed shell (103) and a second fixed shell (104) are sequentially arranged at two ends of the socket (1), and a fixed groove (105) for fixing the first fixed shell (103) and the second fixed shell (104) is formed in the surface of the socket (1).

3. The pressure-bearing and sealing combination device for the high-temperature and high-pressure environment of petroleum logging as claimed in claim 2, wherein: connecting cylinder (102) includes barrel (1021), the one end of barrel (1021) is provided with compressing blade (1022), the other end of barrel (1021) is provided with spacing ring (1023), connecting cylinder (102) adopt metal material, fixed base (101), first stationary housing (103) and second stationary housing (104) adopt high temperature resistant insulating material.

4. The pressure-bearing and sealing combination device for the high-temperature and high-pressure environment of petroleum logging as claimed in claim 1, wherein: the plug (2) comprises a fixed base (201), a contact column (202) is arranged in the fixed base (201), a composite cable (203) is further arranged on one side of the fixed base (201), and one end of the contact column (202) is connected with the composite cable (203).

5. The pressure-bearing and sealing combination device for the high-temperature and high-pressure environment of petroleum logging as claimed in claim 1, wherein: the plug sealing sleeve is characterized in that an inclined plane (15) is arranged on the inner side of one end of the plug sealing sleeve (7), and one end, close to the plug sealing sleeve (7), of the sealing rubber sleeve (4) is arranged to be a circular table surface (42) matched with the inclined plane (15).

6. The pressure-bearing and sealing combination device for the high-temperature and high-pressure environment of petroleum logging as claimed in claim 1, wherein: one end of the plug protective shell (8) is provided with a sealing ring (11).

7. The pressure-bearing and sealing combination device for the high-temperature and high-pressure environment of petroleum logging as claimed in claim 2, wherein: the inner wall of the sealing rubber sleeve (4) is provided with a first protruding ring (12), the surface of the second fixing shell (104) is provided with a groove matched with the first protruding ring (12), the inner wall of the plug protection shell (8) is provided with a second protruding ring (13), and the inner wall of the plug sealing sleeve (7) is provided with a third protruding ring (14).