CN102545135A - Cable sealing joint special for oil well - Google Patents
Cable sealing joint special for oil well Download PDFInfo
- Publication number
- CN102545135A CN102545135A CN201210024324XA CN201210024324A CN102545135A CN 102545135 A CN102545135 A CN 102545135A CN 201210024324X A CN201210024324X A CN 201210024324XA CN 201210024324 A CN201210024324 A CN 201210024324A CN 102545135 A CN102545135 A CN 102545135A
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- Prior art keywords
- cable
- sealing
- oil well
- sealed
- wiring tube
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Abstract
The invention discloses a cable sealing joint special for an oil well, relates to a high-voltage-resistant single-core cable sealing joint special for the oil well and aims to solve the problems that the conventional cable joint cannot well seal the cable, a cable is leaked at a high voltage of 30 MPa, and equipment is short-circuited, so great loss of production is caused. Two sealing main bodies are symmetrically arranged at two ends of a wiring cylinder; each sealing main body and the wiring cylinder are sealed by an O-shaped sealing ring; each sealing main body is in threaded connection with the wiring cylinder; a cable cavity, a sealing cavity and a nut installation cavity, which are communicated with one another, are formed in the center of each sealing main body from one end of the wiring cylinder to the outer end; a plurality of specially-shaped sealing gaskets are arranged in each sealing cavity; a compression nut is arranged in each nut installation cavity and is in threaded connection with each sealing main body; and an end face of each specially-shaped sealing gasket is a convex-concave curve. The cable sealing joint special for the oil well is applicable to connection of two armored cables.
Description
Technical field
The present invention relates to the special-purpose high pressure resistant single-core cable seal nipple of a kind of oil well.
Background technology
At present, when underground equipment connected in the oil field, connection need couple together two sections cables between two distinct devices; But it is not fine that O RunddichtringO, the sealing effectiveness of sealing mode are mostly adopted in existing cable joint sealing, and the seepage phenomenon appears in cable sometimes under the 30MPa high pressure, cause the short circuit of equipment, causes very big loss to production.Though the cable joint that has can be accomplished positiver sealing, there is operation inconvenience, is difficult to problem such as dismounting.
Summary of the invention
The objective of the invention is to seal well, cause cable under the 30MPa high pressure, the seepage phenomenon can occur, cause the short circuit of equipment, bring the problem of very big loss, a kind of oil well private cable seal nipple is provided to production for solving existing cable joint.
The present invention addresses the above problem the technical scheme of taking to be:
A kind of oil well private cable seal nipple; Said cable sealed joint comprises wiring tube, two sealed bodies, two clamp nuts, several O type sealing rubber rings and several profiled seal pads; Two sealed body symmetries are installed in the two ends of wiring tube; Lean on the sealing of O RunddichtringO between each sealed body and the wiring tube, and adopt between each sealed body and the wiring tube and be threaded, the center of each sealed body is provided with cable chamber, annular seal space and the nut installation cavity that communicates to the outer end by wiring tube one end; Several profiled seal pads are housed in each annular seal space; A clamp nut is housed in each nut installation cavity, and clamp nut is threaded with sealed body, the end surface shape of each profiled seal pad is a concave and convex surface.
The invention has the beneficial effects as follows: one, because the end surface shape of profiled seal pad 2 of the present invention is a concave and convex surface; Profiled seal pad 2 produces distortion under the squeezing action of clamp nut 4; With armoured cable 6 lockings, thereby guaranteed the positiver sealing of armoured cable 6 junctions; The present invention can guarantee that cable the seepage phenomenon can not occur under the 30MPa high pressure, has avoided the short circuit of equipment, has reduced potential safety hazard.Two, volume of the present invention is little, sealing is reliable, easy to operate, dismounting is easy.
Description of drawings
Fig. 1 is the integrally-built main cutaway view of the present invention, and Fig. 2 is the front view of profiled seal pad 2.
Embodiment
Embodiment one: combine Fig. 1 and Fig. 2 that this execution mode is described; The oil well private cable seal nipple of this execution mode; Said cable sealed joint comprises wiring tube 1, two sealed bodies 3, two clamp nuts 4, several O type sealing rubber rings 5 and several profiled seal pads 2; Two sealed body 3 symmetries are installed in the two ends of wiring tube 1; Lean on 5 sealings of O RunddichtringO between each sealed body 3 and the wiring tube 1, and adopt between each sealed body 3 and the wiring tube 1 and be threaded, the center of each sealed body 3 is provided with cable chamber 3-1, annular seal space 3-2 and the nut installation cavity 3-3 that communicates to the outer end by wiring tube 1 one ends; Several profiled seal pads 2 are housed among each annular seal space 3-2; Among each nut installation cavity 3-3 a clamp nut 4 is housed, and clamp nut 4 is threaded with sealed body 3, the end surface shape of each profiled seal pad 2 is a concave and convex surface.Wiring place of two sections armoured cables 6 is sealed in 1 li in wiring tube, leans on 2 sealings of profiled seal pad around the armoured cable 6.When cable connects, at first clamp nut 4, profiled seal pad 2 and the sealed body 3 of an end is installed in wherein on the armoured cable 6, promptly realizes the sealing of this root armoured cable 6 after clamp nut 4 is tightened; Clamp nut 4, profiled seal pad 2, sealed body 3 and the wiring tube 1 of the other end are installed on another root armoured cable 6, and this clamp nut 4 wouldn't be tightened; After treating that two sections cable connections are accomplished, at first tighten being threaded between wiring tube 1 and the sealed body 3, tighten the clamp nut 4 of the other end at last, promptly accomplish the connection of two sections armoured cables 6.
Embodiment two: combine Fig. 1 that this execution mode is described, each sealed body 3 of this execution mode and the quantity of the O RunddichtringO 5 between the wiring tube 1 are provided with two at least.O type sealing when design makes like this between sealed body 3 and the wiring tube 1 is better.Other composition is identical with embodiment one with annexation.
Embodiment three: combine Fig. 2 that this execution mode is described, the material of each profiled seal pad 2 of this execution mode is a polytetrafluoroethylene.Design can make the for convenience detach and repeatedly use of whole cable joint like this.Other composition is identical with embodiment one with annexation.
Claims (3)
1. oil well private cable seal nipple; Said cable sealed joint comprises wiring tube (1), two sealed bodies (3), two clamp nuts (4), several O type sealing rubber rings (5) and several profiled seal pads (2); Two sealed bodies (3) symmetry is installed in the two ends of wiring tube (1); Lean on O RunddichtringO (5) sealing between each sealed body (3) and the wiring tube (1); And adopt between each sealed body (3) and the wiring tube (1) to be threaded, it is characterized in that: said cable sealed joint also comprises several profiled seal pads (2), and the center of each sealed body (3) is provided with cable chamber (3-1), annular seal space (3-2) and the nut installation cavity (3-3) that communicates by wiring tube (1) one end to outer end; Several profiled seal pads (2) are housed in each annular seal space (3-2); In each nut installation cavity (3-3) clamp nut (4) is housed, and clamp nut (4) is threaded with sealed body (3), the end surface shape of each profiled seal pad (2) is a concave and convex surface.
2. according to the said oil well private cable of claim 1 seal nipple, it is characterized in that: the quantity of the O RunddichtringO (5) between each sealed body (3) and the wiring tube (1) is provided with two at least.
3. according to claim 1 or 2 said oil well private cable seal nipples, it is characterized in that: the material of each profiled seal pad (2) is a polytetrafluoroethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210024324XA CN102545135A (en) | 2012-02-03 | 2012-02-03 | Cable sealing joint special for oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210024324XA CN102545135A (en) | 2012-02-03 | 2012-02-03 | Cable sealing joint special for oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102545135A true CN102545135A (en) | 2012-07-04 |
Family
ID=46351365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210024324XA Pending CN102545135A (en) | 2012-02-03 | 2012-02-03 | Cable sealing joint special for oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102545135A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103151755A (en) * | 2012-12-20 | 2013-06-12 | 贵州航天凯山石油仪器有限公司 | Method and structure capable of improving reliability of downhole instrument connecting cable |
| CN104234701A (en) * | 2014-09-26 | 2014-12-24 | 哈尔滨工业大学 | Underground optical fiber pressure gage and underground pressure measurement method |
| CN106848994A (en) * | 2015-12-04 | 2017-06-13 | 中国石油天然气股份有限公司 | Compressor unit shafting instrument detection probe lead wire oil leakage sealing connecting device |
| CN109510006A (en) * | 2018-11-05 | 2019-03-22 | 西安科技大学 | A kind of high pressure resistant anti-pulling cable connector of high-temperature oil well |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2353072Y (en) * | 1998-11-02 | 1999-12-08 | 金湖机械厂 | Cable-end sealing arrangement on oil pipe-end |
| CN101834387A (en) * | 2010-06-09 | 2010-09-15 | 中国石油天然气集团公司 | Dismountable cable-passing pressure-proof connector |
| CN201725066U (en) * | 2010-07-14 | 2011-01-26 | 中国科学院半导体研究所 | Underground cable connection protecting device |
-
2012
- 2012-02-03 CN CN201210024324XA patent/CN102545135A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2353072Y (en) * | 1998-11-02 | 1999-12-08 | 金湖机械厂 | Cable-end sealing arrangement on oil pipe-end |
| CN101834387A (en) * | 2010-06-09 | 2010-09-15 | 中国石油天然气集团公司 | Dismountable cable-passing pressure-proof connector |
| CN201725066U (en) * | 2010-07-14 | 2011-01-26 | 中国科学院半导体研究所 | Underground cable connection protecting device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103151755A (en) * | 2012-12-20 | 2013-06-12 | 贵州航天凯山石油仪器有限公司 | Method and structure capable of improving reliability of downhole instrument connecting cable |
| CN103151755B (en) * | 2012-12-20 | 2016-04-13 | 贵州航天凯山石油仪器有限公司 | Improve method and the structure of downhole instrument stube cable reliability |
| CN104234701A (en) * | 2014-09-26 | 2014-12-24 | 哈尔滨工业大学 | Underground optical fiber pressure gage and underground pressure measurement method |
| CN104234701B (en) * | 2014-09-26 | 2017-01-25 | 哈尔滨工业大学 | Underground optical fiber pressure gage and underground pressure measurement method |
| CN106848994A (en) * | 2015-12-04 | 2017-06-13 | 中国石油天然气股份有限公司 | Compressor unit shafting instrument detection probe lead wire oil leakage sealing connecting device |
| CN106848994B (en) * | 2015-12-04 | 2019-01-18 | 中国石油天然气股份有限公司 | Compressor unit shafting instrument detection probe lead wire oil leakage sealing connecting device |
| CN109510006A (en) * | 2018-11-05 | 2019-03-22 | 西安科技大学 | A kind of high pressure resistant anti-pulling cable connector of high-temperature oil well |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120704 |