CN109861162A - A kind of oil shale downhole cable high temperature and pressure seal nipple - Google Patents
A kind of oil shale downhole cable high temperature and pressure seal nipple Download PDFInfo
- Publication number
- CN109861162A CN109861162A CN201910106447.XA CN201910106447A CN109861162A CN 109861162 A CN109861162 A CN 109861162A CN 201910106447 A CN201910106447 A CN 201910106447A CN 109861162 A CN109861162 A CN 109861162A
- Authority
- CN
- China
- Prior art keywords
- hard
- cable
- air
- soft
- gland
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 210000002445 nipple Anatomy 0.000 title claims abstract description 17
- 239000004058 oil shale Substances 0.000 title claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 37
- 210000004907 gland Anatomy 0.000 claims abstract description 32
- 238000012856 packing Methods 0.000 claims abstract description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 41
- 229910052802 copper Inorganic materials 0.000 claims description 36
- 239000010949 copper Substances 0.000 claims description 36
- 239000000565 sealant Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Abstract
A kind of oil shale downhole cable high temperature and pressure seal nipple, including soft sealing structure and hard sealing structure, soft sealing structure include soft seal main body, flexible cable, the first gland, the first washer, glueballs, the first air-leakage test hole；Hard sealing structure includes hard sealed body, hard cable, the second gland, second packing ring, hard gasket and the second air-leakage test hole.Suitable for soft under high temperature, high pressure, wet environment, hard cable connector sealing, the problem of soft, hard cable seal nipple fails under high temperature, high pressure, climax environment can be effectively prevent.Structure is simple.
Description
Technical field
The present invention relates to a kind of oil shale downhole cable high temperature and pressure seal nipple, in particular to it is a kind of for high temperature,
Cable seal nipple under high pressure, high humidity environment.
Background technique
Downhole electric heater is the key equipment of oil shale in-situ cracking underground heat injection technology, and downhole electric heater is in oily page
Working environment in rock heat injection well is the complex working conditions such as high temperature, high pressure, high humidity, therefore the power linear sealing of downhole electric heater is asked
Topic is the key technique of underground heat injection technology.Currently used encapsulating method has ZHEJIANG DAYUAN PUMP INDUSTRIAL Co., LTD. to propose
A kind of leak-proof cable connection sealing device (CN101232217), the patent can realize that the sealing under normal temperature and pressure wet environment is asked
Topic, but it is not suitable for high temperature, high pressure, high humidity environment；China Yangtze Power Co., Ltd. proposes a kind of submerged cable sealing
Terminal box (CN205092559U), the method achieve the sealing problems of submerged cable connector, but be not suitable for high temperature, high pressure,
High humidity environment.To solve the problem of cable linear sealing difficulty, Frequent Troubles under oil shale heat injection well high temperature and pressure wet environment,
It is proposed a kind of oil shale downhole cable high temperature and pressure seal nipple, to soft under high temperature and high pressure environment, hard cable seal mode into
Gone transformation, completely eliminate cable connection there are the problem of.
Summary of the invention
The present invention provides a kind of oil shale downhole cable high temperature and pressure seal nipple, is suitable for high temperature, high pressure, moist ring
Soft under border, hard cable connector sealing can effectively prevent soft, hard cable seal nipple failure under high temperature, high pressure, climax environment
The problem of.
A kind of oil shale downhole cable high temperature and pressure seal nipple, is made of soft sealing structure and hard sealing structure；
Soft sealing structure includes soft seal main body, flexible cable, the first gland, the first washer, glueballs and the inspection of the first air-tightness
Gaging hole；Soft seal body top is provided with internal screw thread, which connect with the first gland, for compressing the first washer；It is soft close
It is provided with spherical groove in the middle part of envelope main body, for limiting the position of glueballs, so that glueballs is compressed flexible cable, and be close to soft seal main body
Inner wall, the first washer are provided with through-hole；First lower part is provided with spherical groove, for compressing glueballs；Soft seal lower body part
It is provided with the first air-leakage test hole, for detecting the air-tightness of soft seal.
The flexible cable is made of copper beam and rubber；
Hard sealing structure includes that hard sealed body, hard cable, the second gland, second packing ring, hard gasket and second are airtight
Property detection hole.
Hard sealed body top is provided with internal screw thread, which compresses second packing ring for connecting with the second gland；Firmly
Step is provided among sealed body, ledge surface is provided with several seal grooves, several seal grooves and hard gasket cooperate, and rises close
Envelope effect；Hard sealed body lower part is provided with the second air-leakage test hole, for detecting hardwired air-tightness；
Hard cable is made of copper core, insulating layer and copper sheet；
Soft seal main body and hard sealed body weld together；The copper sheet and hard gasket of hard cable weld together；Firmly
The copper core of cable is connected with the copper beam of flexible cable with copper pipe, the rubber of flexible cable, copper pipe, hard cable copper sheet on the outside of smear one layer
Sealant.
A kind of oil shale downhole cable high temperature and pressure seal nipple, single flexible cable sealing step are as follows:
Step 1: soft seal main body, flexible cable, the first gland, the first washer and glueballs are each passed through flexible cable；
Step 2: soft seal main body is welded on to the position for needing to seal；
Step 3: the first gland is tightened；
Step 4: pressure-air is injected into the first air-leakage test hole, detects the air-tightness of soft seal
Step 5: the first air-leakage test hole of sealing.
Steps are as follows for single hard cable seal:
Step 1: hard sealed body, hard cable, the second gland, second packing ring, hard gasket are each passed through hard cable；
Step 2: the copper sheet on the outside of hard gasket and hard cable is welded together；
Step 3: hard sealed body is welded on to the position for needing to seal；
Step 4: the second gland is tightened；
Step 5: injecting pressure-air into the second air-leakage test hole, detects the air-tightness sealed firmly；
Step 6: the second air-leakage test hole of sealing.
It is as follows that hard cable with flexible cable connect sealing step:
Step 1: soft seal main body, flexible cable, the first gland, the first washer and glueballs are each passed through flexible cable；It is hard close
Envelope main body, hard cable, the second gland, second packing ring and hard gasket are each passed through hard cable, by soft seal main body and hard sealing
Main body welds together；
Step 2: the copper sheet of hard cable and hard gasket are welded together；
Step 3: first the copper core of hard cable is connected with the copper beam of flexible cable with copper pipe, then rubber, copper in flexible cable
Copper sheet outside one layer of 504 sealant of smearing of pipe, hard cable；
Step 4: first by hard one side seal of cable, the second gland is compressed, then compresses the first gland；
Step 5: pressure-air, detection tabs sealing are injected to the first air-leakage test hole or the second air-leakage test hole
Property；
Step 6: the first air-leakage test hole of sealing and the second air-leakage test hole.
Beneficial effects of the present invention:
Suitable for soft under high temperature, high pressure, wet environment, hard cable connector sealing, high temperature, high pressure, height can be effectively prevent
The problem of soft under damp environment, hard cable seal nipple fails.
Detailed description of the invention
Fig. 1 is the schematic diagram of flexible cable high temperature and pressure seal nipple of the invention.
Fig. 2 is the schematic diagram of hard cable high-temperature high pressure sealing joint of the invention.
Fig. 3 is the high temperature and pressure seal nipple schematic diagram of flexible cable and hard cable connection of the invention.
In figure: 1- soft seal main body, 201- rubber, 202- copper beam, the first gland of 3-, the first washer of 4-, 5- glueballs, 6-
One air-leakage test hole, the hard sealed body of 7-, 801- copper sheet, 802- insulating layer, 803- copper core, the second gland of 9-, 10- second are padded
Circle, the hard gasket of 11-, the second air-leakage test of 12- hole, 13- copper pipe.
Specific embodiment
It please refers to shown in Fig. 1, Fig. 2 and Fig. 3, a kind of oil shale downhole cable high temperature and pressure seal nipple, by soft seal
Structure and hard sealing structure composition；
Soft sealing structure includes that soft seal main body 1, flexible cable, the first gland 3, the first washer 4, glueballs 5 and first are airtight
Property detection hole 6；1 top of soft seal main body is provided with internal screw thread, which connect with the first gland 3, for compressing the first pad
Circle 4；It is provided with spherical groove in the middle part of soft seal main body 1, for limiting the position of glueballs 5, so that glueballs 5 is compressed flexible cable, and tight
1 inner wall of soft seal main body is pasted, the first washer 4 is provided with through-hole；First washer, 4 lower part is provided with spherical groove, for compressing glueballs
5；1 lower part of soft seal main body is provided with the first air-leakage test hole 6, for detecting the air-tightness of soft seal.
The flexible cable is made of copper beam 202 and rubber 201；
Hard sealing structure includes hard sealed body 7, hard cable, the second gland 9, second packing ring 10, hard gasket 11 and
Two air-leakage test holes 12.
Hard 7 top of sealed body is provided with internal screw thread, which compresses second packing ring for connecting with the second gland 9
10；It is provided with step among hard sealed body 7, ledge surface is provided with several seal grooves, several seal grooves and hard gasket 11
Cooperation, seals；Hard 7 lower part of sealed body is provided with the second air-leakage test hole 12, hardwired airtight for detecting
Property；
Hard cable is made of copper core 803, insulating layer 802 and copper sheet 801；
Soft seal main body 1 and hard sealed body 7 weld together；The copper sheet 801 and hard gasket 11 of hard cable are welded on
Together；The copper core 803 of hard cable and the copper beam 202 of flexible cable are connected with copper pipe 13, rubber 201, copper pipe 13, the hard electricity of flexible cable
One layer of 504 sealant is smeared on the outside of the copper sheet 801 of cable.
A kind of oil shale downhole cable high temperature and pressure seal nipple, single flexible cable sealing step are as follows:
Step 1: being each passed through flexible cable for soft seal main body 1, flexible cable, the first gland 3, the first washer 4 and glueballs 5,
As shown in Figure 1；
Step 2: soft seal main body 1 is welded on to the position for needing to seal；
Step 3: the first gland 3 is tightened；
Step 4: injecting pressure-air into the first air-leakage test hole 6, detects the air-tightness step 5 of soft seal: close
Seal the first air-leakage test hole 6.
Steps are as follows for single hard cable seal:
Step 1: hard sealed body 7, hard cable, the second gland 9, second packing ring 10, hard gasket 11 are each passed through firmly
Cable, as shown in Figure 2；
Step 2: the copper sheet 801 on the outside of hard gasket 11 and hard cable is welded together；
Step 3: hard sealed body 7 is welded on to the position for needing to seal；
Step 4: the second gland 9 is tightened；
Step 5: injecting pressure-air into the second air-leakage test hole 12, detects the air-tightness sealed firmly；
Step 6: the second air-leakage test hole 12 of sealing.
It is as follows that hard cable with flexible cable connect sealing step:
Step 1: as shown in figure 3, soft seal main body 1, flexible cable, the first gland 3, the first washer 4 and glueballs 5 are distinguished
Across flexible cable；Hard sealed body 7, hard cable, the second gland 9, second packing ring 10 and hard gasket 11 are each passed through hard cable,
Soft seal main body 1 and hard sealed body 7 are welded together；
Step 2: the copper sheet 801 of hard cable and hard gasket 11 are welded together；
Step 3: first the copper pipe 13 of copper beam 202 of the copper core 803 of hard cable and flexible cable is connected, then in flexible cable
Rubber 201, copper pipe 13, hard cable copper sheet 801 on the outside of smear one layer of 504 sealant；
Step 4: first by hard one side seal of cable, the second gland 9 is compressed, then compresses the first gland 3；
Step 5: pressure-air is injected to the first air-leakage test hole 6 or the second air-leakage test hole 12, detection tabs are close
Feng Xing；
Step 6: the first air-leakage test hole 6 of sealing and the second air-leakage test hole 12.
Claims (1)
1. a kind of oil shale downhole cable high temperature and pressure seal nipple, it is characterised in that: by soft sealing structure and hard sealing knot
Structure composition；
Soft sealing structure includes soft seal main body (1), flexible cable, the first gland (3), the first washer (4), glueballs (5) and first
Air-leakage test hole (6)；Soft seal main body (1) top is provided with internal screw thread, which connect with the first gland (3), is used for
Compress the first washer (4)；It is provided with spherical groove in the middle part of soft seal main body (1), for limiting the position of glueballs (5), makes glueballs
(5) flexible cable is compressed, and is close to soft seal main body (1) inner wall, the first washer (4) is provided with through-hole；The setting of first washer (4) lower part
There is spherical groove, for compressing glueballs (5)；Soft seal main body (1) lower part is provided with the first air-leakage test hole (6), for examining
Survey the air-tightness of soft seal；
The flexible cable is made of copper beam (202) and rubber (201)；
Hard sealing structure includes hard sealed body (7), hard cable, the second gland (9), second packing ring (10), hard gasket (11)
With the second air-leakage test hole (12)；
Hard sealed body (7) top is provided with internal screw thread, which compresses second packing ring for connecting with the second gland (9)
(10)；It is provided with step among hard sealed body (7), ledge surface is provided with several seal grooves, several seal grooves and hard sealing
(11) cooperation is padded, is sealed；Hard sealed body (7) lower part is provided with the second air-leakage test hole (12), hard for detecting
The air-tightness of connection；
Hard cable is made of copper core (803), insulating layer (802) and copper sheet (801)；
Soft seal main body (1) and hard sealed body (7) weld together；The copper sheet (801) of hard cable and hard gasket (11) weldering
It is connected together；The copper core (803) of hard cable and the copper beam (202) of flexible cable are connected with copper pipe (13), the rubber of flexible cable
(201), one layer of 504 sealant is smeared on the outside of the copper sheet (801) of copper pipe (13), hard cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910106447.XA CN109861162B (en) | 2019-02-02 | 2019-02-02 | Underground cable high-temperature high-pressure sealing joint for oil shale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910106447.XA CN109861162B (en) | 2019-02-02 | 2019-02-02 | Underground cable high-temperature high-pressure sealing joint for oil shale |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109861162A true CN109861162A (en) | 2019-06-07 |
| CN109861162B CN109861162B (en) | 2023-10-24 |
Family
ID=66897504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910106447.XA Active CN109861162B (en) | 2019-02-02 | 2019-02-02 | Underground cable high-temperature high-pressure sealing joint for oil shale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109861162B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120052721A1 (en) * | 2010-06-30 | 2012-03-01 | Watson Arthur I | High temperature pothead |
| US20150069750A1 (en) * | 2013-09-12 | 2015-03-12 | Seung Jin Ind. Co., Ltd | Unwelded explosion-proof drain cable gland assembly |
| CN204793994U (en) * | 2015-07-20 | 2015-11-18 | 中国石油集团渤海钻探工程有限公司 | Sealing device of cable tee bend in pit |
| CN106300221A (en) * | 2016-09-30 | 2017-01-04 | 中国石油天然气股份有限公司 | A kind of down-hole steel pipe type cable adapter |
| CN205945001U (en) * | 2016-08-29 | 2017-02-08 | 长缆电工科技股份有限公司 | Cable intermediate head sealing device |
| CN206195323U (en) * | 2016-11-29 | 2017-05-24 | 北京金风科创风电设备有限公司 | A cable joint |
-
2019
- 2019-02-02 CN CN201910106447.XA patent/CN109861162B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120052721A1 (en) * | 2010-06-30 | 2012-03-01 | Watson Arthur I | High temperature pothead |
| US20150069750A1 (en) * | 2013-09-12 | 2015-03-12 | Seung Jin Ind. Co., Ltd | Unwelded explosion-proof drain cable gland assembly |
| CN204793994U (en) * | 2015-07-20 | 2015-11-18 | 中国石油集团渤海钻探工程有限公司 | Sealing device of cable tee bend in pit |
| CN205945001U (en) * | 2016-08-29 | 2017-02-08 | 长缆电工科技股份有限公司 | Cable intermediate head sealing device |
| CN106300221A (en) * | 2016-09-30 | 2017-01-04 | 中国石油天然气股份有限公司 | A kind of down-hole steel pipe type cable adapter |
| CN206195323U (en) * | 2016-11-29 | 2017-05-24 | 北京金风科创风电设备有限公司 | A cable joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109861162B (en) | 2023-10-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207017968U (en) | Oil well head annular space sealing device | |
| CN209233443U (en) | A kind of oil shale downhole cable high temperature and pressure seal nipple | |
| CN109093654B (en) | Full transparent vacuum glove box | |
| CN104089041B (en) | The box-like hermetically-sealed construction of valve sets and method thereof | |
| CN109861162A (en) | A kind of oil shale downhole cable high temperature and pressure seal nipple | |
| CN207133022U (en) | A kind of sylphon seal performance test apparatus | |
| CN107448607A (en) | A kind of sealing structure of downhole tool experimental rig | |
| CN205534739U (en) | Seal structure of two -way flange and packing box | |
| CN113178839B (en) | Submarine cable intermediate joint protection method and protector | |
| CN201310693Y (en) | Tooth-thread coupling type flange | |
| CN203948678U (en) | The box-like sealing configuration of a kind of valve sets | |
| CN211667176U (en) | Lock-type detachable copper gate valve | |
| CN202954703U (en) | Elastic connecting structure, between double-layer containment, of large-scale nuclear power station equipment gate | |
| CN208473851U (en) | Pressure gauge suitable for the high temperature and pressure natural gas well | |
| CN203365090U (en) | Hydraulic pressure detection device | |
| CN206891871U (en) | A kind of coiled tubing collapsing pressure testing machine | |
| CN214118943U (en) | Rubber ring pressure sealing device | |
| CN217717692U (en) | Detection device for natural gas safety management | |
| CN202946808U (en) | Electrified hydraulic pipeline insulation device | |
| CN214843836U (en) | Rubber tube gas tightness inspection device | |
| CN210239633U (en) | Blowout prevention polish rod sealing device | |
| CN203685113U (en) | Four-stage compression packer suitable for high-temperature and high-pressure construction conditions | |
| CN209820515U (en) | Improve sensor for leakproofness | |
| CN219159783U (en) | Double-sealing structure of pipeline | |
| CN212564626U (en) | Stop valve for hydraulic engineering with seal structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |