CN108104762A - Wellhead cable sealing device and method - Google Patents
Wellhead cable sealing device and method Download PDFInfo
- Publication number
- CN108104762A CN108104762A CN201711365872.8A CN201711365872A CN108104762A CN 108104762 A CN108104762 A CN 108104762A CN 201711365872 A CN201711365872 A CN 201711365872A CN 108104762 A CN108104762 A CN 108104762A
- Authority
- CN
- China
- Prior art keywords
- sealing
- wellhead
- cable
- main cylinder
- outer barrel
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000004519 grease Substances 0.000 claims abstract description 12
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 12
- 239000000725 suspension Substances 0.000 claims description 41
- 230000007704 transition Effects 0.000 claims description 10
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 238000002347 injection Methods 0.000 abstract description 9
- 239000007924 injection Substances 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 238000012544 monitoring process Methods 0.000 abstract description 7
- 238000004891 communication Methods 0.000 abstract description 2
- 239000002390 adhesive tape Substances 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/068—Well heads; Setting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells
- E21B33/072—Well heads; Setting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells for cable-operated tools
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention provides a wellhead cable sealing device and a wellhead cable sealing method, which comprise a main cylinder and a wellhead sealing wire hanging assembly, wherein the wellhead sealing wire hanging assembly is fixedly arranged in the main cylinder, the upper end and the lower end of the main cylinder are open, an upper sealing assembly is fixedly arranged at the upper end of the main cylinder, a cable sequentially penetrates through the lower end of the main cylinder, the wellhead sealing wire hanging assembly and the upper sealing assembly from bottom to top, and the annular space of the cable and the wellhead sealing wire hanging assembly is filled with silicone grease. According to the invention, the cable is clamped and suspended through the wellhead sealing hanging wire assembly, silicone grease is injected into the middle of the cable, the cable is connected with the sealing plug through the flexible wire, the joint of the cable and the sealing plug is wound by the adhesive tape to prevent water, then the wellhead sealing hanging wire is suspended and positioned, and the inner channel is sealed through the sealing washer, so that the effective bearing and sealing of the armored cable of the digital separate injection wellhead are realized, the single-core cable is led out of the ground, and the stable communication and remote control of the digital separate injection in the whole process monitoring are realized.
Description
Technical field
The invention belongs to oil-field flooding supporting tool technical fields, and in particular to a kind of wellhead cable sealing device and sealing
Method.
Background technology
With going deep into for oil field development, dispensing well increases year by year, surveys and adjusts heavy workload, and mating survey tune expense raises year by year；
It surveys to adjust to be hampered and take place frequently, cause later stage inspection string, Operating Pressure costly；The factors shadows such as compression fluctuation, the variation of stratum water absorbing capacity
It rings, inspection declines fast with qualification rate, it is difficult to meet the fine seperated layer water injection needs in oil field；Simultaneously water is digitized to further improve water filling
It is flat, seperated layer water injection new way is explored, has carried out digital dispensing research and experiment.On the basis of in early period, untethered number dispenses,
It is fulfiled assignment to break away from using cable under conventional method and instrument, innovation has developed the digital dispensing technology of overall process monitoring, will
Cable is introduced in oil pipe, realizes the dynamic intelligent watering of laminated distributor under well water filling and remote monitoring.
After cable is introduced in oil pipe, cable from well head need to be drawn, realize armored cable in the effective of wellhead of water injection well
It bears and high pressure sealing, therefore there is an urgent need for a kind of overall processes to monitor number dispensing wellhead cable sealing device.
The content of the invention
The purpose of the present invention is realize cable effectively bearing and high pressure sealing in wellhead of water injection well.
To achieve these goals, the present invention provides a kind of wellhead cable sealing device, hung including main cylinder, wellhead sealing
Line component, the wellhead sealing hanging wire component are fixedly arranged in main cylinder, the main cylinder upper and lower ends opening, and the main cylinder upper end is fixed
There is upper seal assembly, cable sequentially passes through main cylinder lower end, wellhead sealing hanging wire component and upper seal assembly, the electricity from bottom to up
The annular space of cable and wellhead sealing hanging wire component is perfused with silicone grease.
The main cylinder internal upper part is equipped with positioning table, and the wellhead sealing hanging wire component includes sequentially connected from top to bottom carry
Outer barrel, the lower outer barrel of suspension, the hanging head lower part that carries are arranged with location nut on hanging head, suspension, and the location nut is sitting in positioning
Platform, equipped with sealing-plug, the sealing-plug is arranged on the upper outer barrel internal upper part of suspension for the hanging head lower end that carries；
Outer barrel and the lower outer barrel joint of suspension are installed with nut, transition sleeve, drag ring and card successively from top to bottom in the suspension
Hoop, lower part is installed with support ring and lower seal in outer barrel under the suspension.
The upper seal assembly includes clamp nut, connector assembly and outlet cap, and the clamp nut is arranged in location nut,
The clamp nut is threadedly coupled with main cylinder top, and the outlet cap is fixedly arranged on clamp nut top, and the connector assembly is arranged on outlet
In cap and clamp nut top is installed in, seal washer is equipped between the connector assembly and clamp nut.
The main cylinder internal upper part is equipped with internal thread, and the wellhead sealing hanging wire component includes sequentially connected from top to bottom carry
Outer barrel, the lower outer barrel of suspension, the hanging head lower part that carries are equipped with the external screw thread coordinated with main cylinder internal upper part external screw thread on hanging head, suspension,
Equipped with sealing-plug, the sealing-plug is arranged on the upper outer barrel internal upper part of suspension for the hanging head lower end that carries；
Outer barrel and the lower outer barrel joint of suspension are installed with nut, transition sleeve, drag ring and card successively from top to bottom in the suspension
Hoop, lower part is installed with support ring and lower seal in outer barrel under the suspension.
The upper seal assembly includes connector assembly and outlet cap, and the outlet cap is fixedly arranged on main cylinder top, the connector assembly
In outlet cap and main cylinder top is installed in, seal washer is equipped between the connector assembly and main cylinder.
The top of the nut is additionally provided with falling-proof clamp, which is fixed on the upper outer tube inner wall of suspension.
The cable is flexible cord through sealing plug portion, and adhesive waterproof tape is tied on the flexible cord.
The cable sequentially pass through from bottom to up main cylinder lower end, the lower outer barrel lower end of suspension, sealing element, support ring, drag ring,
Transition sleeve, nut, carry hanging head, connector assembly and outlet cap at sealing-plug.
The present invention also provides a kind of wellhead cable encapsulating method, using wellhead cable sealing device, cable from down toward
On sequentially pass through main cylinder lower end, wellhead sealing hanging wire component and upper seal assembly, wellhead sealing hanging wire component clamps cable, well
Mouth sealing hanging wire component top between seal washer and upper seal assembly by sealing, between wellhead sealing hanging wire component and cable
Waterproof is sealed with silicone grease inward passage, wellhead sealing hanging wire component top is sealed by seal washer bottom by lower seal,
It completes to make the sealing of wellhead cable and bear.
The beneficial effects of the invention are as follows：The present invention hangs cable, centre injection by the clamping of wellhead sealing hanging wire component
Silicone grease, cable is connected with sealing-plug uses flexible cord, and blend compounds band winding junction waterproof, it is fixed then to hang " wellhead sealing hanging wire "
Position simultaneously passes through seal washer and seals internal channel, realize overall process monitoring number dispensing well head armored cable effectively bear with it is close
Envelope, single-core cable draw ground, realize that overall process monitoring number dispensing stablizes communication and remote control.
It is described in further details below in conjunction with attached drawing.
Description of the drawings
Fig. 1 is the structure diagram of the embodiment of the present invention 2；
Fig. 2 is the structure diagram of the embodiment of the present invention 3.
In figure：1st, outlet cap；2nd, seal washer；3rd, connector assembly；4th, clamp nut；5th, location nut；6th, hanging head is carried；7th, it is close
Blocking；8th, outer barrel in suspension；9th, falling-proof clamp；10th, nut；11st, transition sleeve；12nd, drag ring；13rd, clip；14th, lower outer barrel is hung；
15th, support ring；16th, lower seal；17th, main cylinder.
Specific embodiment
Embodiment 1：
A kind of wellhead cable sealing device is present embodiments provided, including main cylinder 17, wellhead sealing hanging wire component, the well head is close
Envelope hanging wire component is fixedly arranged in main cylinder 17, and the main 17 upper and lower ends opening of cylinder, main 17 upper end of cylinder is installed with sealing group
Part, cable sequentially pass through main 17 lower end of cylinder, wellhead sealing hanging wire component and upper seal assembly, the cable and well head from bottom to up
The annular space of sealing hanging wire component is perfused with silicone grease.
The present invention hangs cable by the clamping of wellhead sealing hanging wire component, and injection silicone grease in centre seals internal channel, real
Show well head armored cable effectively to bear and seal.
Embodiment 2：
On the basis of embodiment 1, a kind of wellhead cable sealing device as shown in Figure 1, the main cylinder are present embodiments provided
17 internal upper parts are equipped with positioning table, the wellhead sealing hanging wire component include from top to bottom it is sequentially connected carry hanging head 6, in suspension outside
Cylinder 8, the lower outer barrel 14 of suspension, 6 lower part of hanging head that carries are arranged with location nut 5, and the location nut 5 is sitting in positioning table, described
6 lower end of hanging head is carried equipped with sealing-plug 7, the sealing-plug 7 is arranged on suspension 8 internal upper part of upper outer barrel；
Outer barrel 8 and lower 14 joint of outer barrel of suspension are installed with nut 10, transition sleeve 11, friction successively from top to bottom in the suspension
Ring 12 and clip 13, lower part is installed with support ring 15 and lower seal 16 in outer barrel 14 under the suspension.
The upper seal assembly includes clamp nut 4, connector assembly 3 and outlet cap 1, and the clamp nut 4 is arranged on positioning spiral shell
On mother 5, which is threadedly coupled with main 17 top of cylinder, and the outlet cap 1 is fixedly arranged on 4 top of clamp nut, the plug
Seat 3 is arranged in outlet cap 1 and is installed in 4 top of clamp nut, and seal washer is equipped between the connector assembly 3 and clamp nut 4
2。
Specifically used process：The digital dispensing instrument of overall process monitoring is gone into the well after completion, erects by main cylinder 17 in well head, complete
Into the assembling of wellhead sealing hanging wire component, main cylinder 17 is passed through, using the positioning step on main cylinder 17 by wellhead sealing hanging wire
It hangs and is located in end, and pass through seal washer 2 and seal internal channel, hung wellhead sealing by the screw thread of clamp nut 4
Line component is locked at the port of main cylinder 17, intermediate after hanging cable using wellhead sealing hanging wire component global facility clamping
Silicone grease is injected, cable is connected with sealing-plug 7 with flexible cord, blend compounds band winding junction waterproof.Connector assembly 3 is installed, connects electric wire,
And connector assembly 3 is fixed on to the top of clamp nut 4 with screw.Outlet cap 1 is installed at the top of clamp nut 4, with interior hexagonal
It is fixed, in its outer installation explosion stack, complete installation.Wherein, cable sequentially passes through main 17 lower end of cylinder, the lower outer barrel of suspension from bottom to up
14 lower ends, sealing element, drag ring 12, transition sleeve 11, nut 10, sealing-plug 7, propose hanging head 6, connector assembly 3 and outlet at support ring 15
Cap 1.
In the present embodiment, the top of the nut 10 is additionally provided with falling-proof clamp 9, which is fixed on the upper outer barrel 8 of suspension
Inner wall.
Embodiment 3：
On the basis of embodiment 1, a kind of wellhead cable sealing device as shown in Figure 2, the main cylinder are present embodiments provided
17 internal upper parts are equipped with internal thread, the wellhead sealing hanging wire component include from top to bottom it is sequentially connected carry hanging head 6, in suspension outside
Cylinder 8, the lower outer barrel 14 of suspension, 6 lower part of hanging head that carries is equipped with the external screw thread coordinated with main 17 internal upper part external screw thread of cylinder, described to carry extension
First 6 lower end is equipped with sealing-plug 7, and the sealing-plug 7 is arranged on suspension 8 internal upper part of upper outer barrel；
Outer barrel 8 and lower 14 joint of outer barrel of suspension are installed with nut 10, transition sleeve 11, friction successively from top to bottom in the suspension
Ring 12 and clip 13, lower part is installed with support ring 15 and lower seal 16 in outer barrel 14 under the suspension.
The upper seal assembly includes connector assembly 3 and outlet cap 1, and the outlet cap 1 is fixedly arranged on main 17 top of cylinder, described to insert
Headstock 3 is arranged in outlet cap 1 and is installed in main 17 top of cylinder, and seal washer 2 is equipped between the connector assembly 3 and main cylinder 17.
Specifically used process：The digital dispensing instrument of overall process monitoring is gone into the well after completion, erects by main cylinder 17 in well head, complete
Into the assembling of wellhead sealing hanging wire component, main cylinder 17 is passed through, the two, which is connected through a screw thread, makes wellhead sealing hanging wire positioning lock
Tightly in the port of main cylinder 17, and pass through seal washer 2 and seal internal channel, pressed from both sides using the wellhead sealing hanging wire component global facility
It holds after hanging cable, centre injection silicone grease, cable is connected with sealing-plug 7 with flexible cord, blend compounds band winding junction waterproof.Peace
Headstock 3 is plugged, connects electric wire, and connector assembly 3 is fixed on to the top of main cylinder 17 with screw.Outlet is installed at the top of main cylinder 17
Cap 1 is fixed with interior hexagonal, in its outer installation explosion stack, completes installation.The device using when be fixed on well head.
Embodiment 4：
On the basis of foregoing wellhead cable sealing device, present embodiments provide a kind of wellhead cable encapsulating method, cable from
Under it is supreme sequentially pass through main 17 lower end of cylinder, wellhead sealing hanging wire component and upper seal assembly, wellhead sealing hanging wire component clamps
Cable, wellhead sealing hanging wire component top by being sealed between seal washer 2 and upper seal assembly, wellhead sealing hanging wire component and
Waterproof is sealed with silicone grease inward passage between cable, wellhead sealing hanging wire component bottom is sealed by lower seal 16, completes to make
It the sealing of wellhead cable and bears.
The structure and the known or common technology of the assembling process category industry that the present embodiment does not describe in detail, differ here
One narration.
The foregoing examples are only illustrative of the present invention, does not form the limitation to protection scope of the present invention, all
Be with the present invention it is the same or similar design all belong to the scope of protection of the present invention within.
Claims (9)
1. a kind of wellhead cable sealing device, it is characterised in that：Including main cylinder（17）, wellhead sealing hanging wire component, the well head
Sealing hanging wire component is fixedly arranged on main cylinder（17）It is interior, the main cylinder（17）Upper and lower ends opening, the main cylinder（17）Upper end is installed with
Upper seal assembly, cable sequentially pass through main cylinder from bottom to up（17）Lower end, wellhead sealing hanging wire component and upper seal assembly, it is described
The annular space of cable and wellhead sealing hanging wire component is perfused with silicone grease.
2. a kind of wellhead cable sealing device according to claim 1, it is characterised in that：The main cylinder（17）Internal upper part is set
There is positioning table, the wellhead sealing hanging wire component carries hanging head including sequentially connected from top to bottom（6）, outer barrel in suspension（8）, it is outstanding
Hang lower outer barrel（14）, it is described to carry hanging head（6）Lower part is arranged with location nut（5）, the location nut（5）Positioning table is sitting in, institute
It states and carries hanging head（6）Lower end is equipped with sealing-plug（7）, the sealing-plug（7）Arranged on the upper outer barrel of suspension（8）Internal upper part；
Outer barrel in the suspension（8）With the lower outer barrel of suspension（14）Joint is installed with nut successively from top to bottom（10）, transition sleeve
（11）, drag ring（12）And clip（13）, outer barrel under the suspension（14）Interior lower part is installed with support ring（15）And lower seal
（16）.
3. a kind of wellhead cable sealing device according to claim 2, it is characterised in that：The upper seal assembly includes pressure
Tight nut（4）, connector assembly（3）With outlet cap（1）, the clamp nut（4）Arranged on location nut（5）On, the clamp nut（4）
With main cylinder（17）Top is threadedly coupled, the outlet cap（1）It is fixedly arranged on clamp nut（4）Top, the connector assembly（3）It is arranged on out
Line cap（1）It is interior and be installed in clamp nut（4）Top, the connector assembly（3）With clamp nut（4）Between be equipped with seal washer
（2）.
4. a kind of wellhead cable sealing device according to claim 1, it is characterised in that：The main cylinder（17）Internal upper part is set
There is internal thread, the wellhead sealing hanging wire component carries hanging head including sequentially connected from top to bottom（6）, outer barrel in suspension（8）, it is outstanding
Hang lower outer barrel（14）, it is described to carry hanging head（6）Lower part is equipped with and main cylinder（17）The external screw thread of internal upper part external screw thread cooperation, it is described to carry extension
Head（6）Lower end is equipped with sealing-plug（7）, the sealing-plug（7）Arranged on the upper outer barrel of suspension（8）Internal upper part；
Outer barrel in the suspension（8）With the lower outer barrel of suspension（14）Joint is installed with nut successively from top to bottom（10）, transition sleeve
（11）, drag ring（12）And clip（13）, outer barrel under the suspension（14）Interior lower part is installed with support ring（15）And lower seal
（16）.
5. a kind of wellhead cable sealing device according to claim 4, it is characterised in that：The upper seal assembly includes inserting
Headstock（3）With outlet cap（1）, the outlet cap（1）It is fixedly arranged on main cylinder（17）Top, the connector assembly（3）Arranged on outlet cap（1）
It is interior and be installed in main cylinder（17）Top, the connector assembly（3）With main cylinder（17）Between be equipped with seal washer（2）.
6. according to a kind of wellhead cable sealing device of claim 2-5 any one of them, it is characterised in that：The nut（10）
Top be additionally provided with falling-proof clamp（9）, the falling-proof clamp（9）It is fixed on the upper outer barrel of suspension（8）Inner wall.
7. according to a kind of wellhead cable sealing device of claim 2-5 any one of them, it is characterised in that：The cable passes through
Sealing-plug（7）Part is flexible cord, and adhesive waterproof tape is tied on the flexible cord.
8. a kind of wellhead cable sealing device according to claim 3 or 5, it is characterised in that：The cable is from bottom to up
Sequentially pass through main cylinder（17）Lower end, the lower outer barrel of suspension（14）Lower end, sealing element, support ring（15）, drag ring（12）, transition sleeve
（11）, nut（10）, sealing-plug（7）, carry hanging head（6）, connector assembly（3）With outlet cap（1）.
9. a kind of wellhead cable encapsulating method, a kind of usage right requirement wellhead cable sealing device of 2-5 any one of them,
It is characterized in that：Cable sequentially passes through main cylinder from bottom to up（17）Lower end, wellhead sealing hanging wire component and upper seal assembly, well head are close
Envelope hanging wire component clamps cable, and wellhead sealing hanging wire component top passes through seal washer（2）It is sealed between upper seal assembly,
Waterproof is sealed with silicone grease inward passage between wellhead sealing hanging wire component and cable, wellhead sealing hanging wire component bottom is close under
Sealing（16）Sealing is completed to make the sealing of wellhead cable and born.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711365872.8A CN108104762B (en) | 2017-12-18 | 2017-12-18 | Wellhead cable sealing device and sealing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711365872.8A CN108104762B (en) | 2017-12-18 | 2017-12-18 | Wellhead cable sealing device and sealing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108104762A true CN108104762A (en) | 2018-06-01 |
| CN108104762B CN108104762B (en) | 2024-03-01 |
Family
ID=62210808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711365872.8A Active CN108104762B (en) | 2017-12-18 | 2017-12-18 | Wellhead cable sealing device and sealing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108104762B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108963500A (en) * | 2018-06-29 | 2018-12-07 | 中国石油天然气股份有限公司 | Underground charging system and working method thereof |
| CN109707334A (en) * | 2019-01-21 | 2019-05-03 | 中国石油天然气股份有限公司 | Intelligent separate injection over-cable wellhead sealing device for water injection well |
| CN109855700A (en) * | 2019-01-31 | 2019-06-07 | 麦克传感器股份有限公司西安分公司 | A kind of throw-in type liquid transmitter |
| CN111305785A (en) * | 2018-12-12 | 2020-06-19 | 中国石油天然气股份有限公司 | Wellhead sealing device, installation method and system |
| CN114284789A (en) * | 2021-12-20 | 2022-04-05 | 贵州航天凯山石油仪器有限公司 | Wellhead sealing explosion-proof method and device |
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| GB8808739D0 (en) * | 1988-04-13 | 1988-05-18 | Cmp Uk Ltd | Improvements in cable glands |
| US6034325A (en) * | 1997-09-16 | 2000-03-07 | Thomas & Betts Corporation | Connector for armored electrical cable |
| US20100065302A1 (en) * | 2006-10-26 | 2010-03-18 | Romote Marine Systems Limited | Electrical connector with pressure seal |
| CN104963645A (en) * | 2015-06-16 | 2015-10-07 | 中国石油天然气股份有限公司 | Cable-passing wellhead for intelligent separate injection of cables |
| CN106930717A (en) * | 2015-12-31 | 2017-07-07 | 中国石油天然气股份有限公司 | Wellhead sealing device for downhole heating cable |
| CN207686658U (en) * | 2017-12-18 | 2018-08-03 | 中国石油天然气股份有限公司 | Wellhead cable sealing device |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8808739D0 (en) * | 1988-04-13 | 1988-05-18 | Cmp Uk Ltd | Improvements in cable glands |
| US6034325A (en) * | 1997-09-16 | 2000-03-07 | Thomas & Betts Corporation | Connector for armored electrical cable |
| US20100065302A1 (en) * | 2006-10-26 | 2010-03-18 | Romote Marine Systems Limited | Electrical connector with pressure seal |
| CN104963645A (en) * | 2015-06-16 | 2015-10-07 | 中国石油天然气股份有限公司 | Cable-passing wellhead for intelligent separate injection of cables |
| CN106930717A (en) * | 2015-12-31 | 2017-07-07 | 中国石油天然气股份有限公司 | Wellhead sealing device for downhole heating cable |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108963500A (en) * | 2018-06-29 | 2018-12-07 | 中国石油天然气股份有限公司 | Underground charging system and working method thereof |
| CN108963500B (en) * | 2018-06-29 | 2020-08-11 | 中国石油天然气股份有限公司 | Underground charging system and working method thereof |
| CN111305785A (en) * | 2018-12-12 | 2020-06-19 | 中国石油天然气股份有限公司 | Wellhead sealing device, installation method and system |
| CN109707334A (en) * | 2019-01-21 | 2019-05-03 | 中国石油天然气股份有限公司 | Intelligent separate injection over-cable wellhead sealing device for water injection well |
| CN109707334B (en) * | 2019-01-21 | 2023-09-26 | 中国石油天然气股份有限公司 | Intelligent split injection cable wellhead sealing device for water injection well |
| CN109855700A (en) * | 2019-01-31 | 2019-06-07 | 麦克传感器股份有限公司西安分公司 | A kind of throw-in type liquid transmitter |
| CN114284789A (en) * | 2021-12-20 | 2022-04-05 | 贵州航天凯山石油仪器有限公司 | Wellhead sealing explosion-proof method and device |
| CN114284789B (en) * | 2021-12-20 | 2024-06-25 | 贵州航天凯山石油仪器有限公司 | Wellhead sealing explosion-proof method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108104762B (en) | 2024-03-01 |
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