CN109707334A - A kind of water injection well intelligently dispensed electric cable wellhead sealing device - Google Patents
A kind of water injection well intelligently dispensed electric cable wellhead sealing device Download PDFInfo
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- CN109707334A CN109707334A CN201910054219.2A CN201910054219A CN109707334A CN 109707334 A CN109707334 A CN 109707334A CN 201910054219 A CN201910054219 A CN 201910054219A CN 109707334 A CN109707334 A CN 109707334A
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- inner cone
- connecting tube
- water injection
- sealing device
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Abstract
A kind of water injection well intelligently dispensed electric cable wellhead sealing device, including upper end, lower end, connecting tube and pipe thread slip ring；One end upper end of pipe thread slip ring is tightly connected, and one end of the other end and connecting tube is tightly connected, and the other end of connecting tube connects lower end；Upper end, connecting tube and lower end form cable passage.Sealing device realization of the invention has cable digital intelligent seperated layer water injection well head armored cable effectively to bear and seal, and single-core cable is then drawn ground, realizes that digital intelligent dispensing stablizes communication and real-time control.
Description
Technical field
The invention belongs to oilfield exploitation technical field, in particular to a kind of water injection well intelligently dispensed cable wellhead sealing dress
It sets.
Background technique
When separated-zone water infection oil field well test is deployed at present mainly based on steel wire operation, controlled by ground well testing truck flat
Fixed water nozzle is replaced in the pulling repeatedly that rises of platform control steel wire, and heavy workload can not ground real-time control downhole measurement adjusting instrument reality
It now surveys to adjust and synchronize, and pulling instrument lateral register docking success rate is low.
With going deep into for oil field development, dispenses well and increase year by year, survey and adjust heavy workload, mating survey tune expense increases year by year；
It surveys to adjust to be hampered and take place frequently, cause later period inspection string, Operating Pressure costly；By factors shadows such as pressure oscillation, the variations of stratum water absorbing capacity
It rings, inspection is fast with qualification rate decline, it is difficult to meet the fine seperated layer water injection needs in oil field；Water is digitized simultaneously to further increase water filling
It is flat, seperated layer water injection new way is explored, having carried out has cable digital intelligent to dispense research and experiment, but in this research, discovery has
Cable digital intelligent seperated layer water injection cable draws the problem of high pressure water injection wellhead sealing.It can be led if sealing difference or effect are bad
Cause downhole cable or downhole intelligent dispensing tool short circuit, ground that can not power to downhole intelligent tool, downhole intelligent detection data
Also ground can not be transmitted to.
Summary of the invention
The purpose of the present invention is to provide a kind of water injection wells intelligently to dispense electric cable wellhead sealing device, to solve above-mentioned ask
Topic.
To achieve the above object, the invention adopts the following technical scheme:
A kind of water injection well intelligently dispensed electric cable wellhead sealing device, including upper end, lower end, connecting tube and pipe thread are sliding
Ring；One end upper end of pipe thread slip ring is tightly connected, and one end of the other end and connecting tube is tightly connected, and the other end of connecting tube connects
Connect lower end；Upper end, connecting tube and lower end form cable passage.
Further, upper end is the first inner cone, and the first inner cone is hollow structure, the first inner cone and pipe thread slip ring
It is threadedly coupled；Lower end includes the second inner cone, compression leg and pressure cap；The setting that second inner cone is threadedly coupled is in connection tube end
Inside, the second inner cone are hollow structure, and end inner sleeve is provided with compression leg, pressure cap is cased with outside the second inner cone.
Further, pressure cap and compression leg are to be threadedly coupled with the second inner cone；Second inner cone is provided with the interior of compression leg
Side is provided with rubber bodies, and rubber bodies are ring assembling structure.
Further, cable cone is provided in the second inner cone, the second inner cone is set close to the side screw thread of connecting tube
It is equipped with fastening nut.
Further, connecting tube is divided into two sections, and two sections of connecting tubes are threadedly coupled by seal nipple, and junction is provided with
Sealing ring；Glue injection cavities are formed inside connecting tube, connection pipe surface is provided with hole for injecting glue, is provided with screw in hole for injecting glue.
Further, it is through-hole structure that seal nipple is interior, setting cable connector in through-hole, in cable connector and seal nipple
Sealing ring is provided between wall.
Compared with prior art, the present invention has following technical effect:
Be provided with cable cone in sealing device cone of the invention, can bear effective pulling force, cable connector with it is close
It is provided with sealing ring between sealing joint inner wall, while filling silicone grease in glue injection cavities body, makes inner sealing part always can be with shape
The state to insulate at one, sealing effect is very good under the high-temperature and high-pressure conditions of underground.
Sealing device realization of the invention has cable digital intelligent seperated layer water injection well head armored cable effectively to bear and seal,
Single-core cable is then drawn into ground, realizes that digital intelligent dispensing stablizes communication and real-time control；Present apparatus 60MPa indoors
It without leakage, is skillfully constructed, designs that simple, safe and reliable, operating cost expense is low and working efficiency within pressure lower 48 hours
It is high.
Detailed description of the invention
Fig. 1 is structure of the invention figure；
Wherein: 1, the first inner cone；2, pipe thread slip ring；3, end body；4, seal nipple；5, connecting tube；6, in second
Cone；7, cable centrum；8, fastening nut；9, rubber bodies；10, compression leg；11, pressure cap.
Specific embodiment
Below in conjunction with attached drawing, the present invention is further described:
A kind of water injection well intelligently dispensed electric cable wellhead sealing device, including upper end, lower end, connecting tube 5 and pipe thread
Slip ring 2；One end upper end of pipe thread slip ring 2 is tightly connected, and one end of the other end and connecting tube 5 is tightly connected, connecting tube 5 it is another
One end connects lower end；Upper end, connecting tube 5 and lower end form cable passage.
Upper end is the first inner cone 1, and the first inner cone 1 is hollow structure, the first inner cone 1 and 2 screw thread of pipe thread slip ring
Connection；Lower end includes the second inner cone 6, compression leg 10 and pressure cap 11；The setting that second inner cone 6 is threadedly coupled is in connecting tube 5
Tip inside, the second inner cone 6 are hollow structure, and end inner sleeve is provided with compression leg 10, is cased with pressure cap outside the second inner cone 6
11。
Pressure cap 11 and compression leg 10 are to be threadedly coupled with the second inner cone 6；Second inner cone 6 is provided with the inside of compression leg 10
Rubber bodies 9 are provided with, rubber bodies are ring assembling structure.
Cable cone 7 is provided in second inner cone 6, the second inner cone 6 is provided with tightly close to the side screw thread of connecting tube
Gu nut 8.
It is two sections that connecting tube 5, which is divided to, and two sections of connecting tubes are threadedly coupled by seal nipple 4, and junction is provided with sealing ring；
Glue injection cavities are formed inside connecting tube 5,5 surface of connecting tube is provided with hole for injecting glue, is provided with screw in hole for injecting glue.
It is through-hole structure in seal nipple 4, cable connector 3 is set in through-hole, between cable connector 3 and seal nipple inner wall
It is provided with sealing ring.
The making step of cable connection:
(1) well inner cable is introduced cable passage from upper end, then the first inner cone is packed into and compresses cable.
(2) two layers of steel wire of crust is peeled off, 20cm or so length is reserved.Seal nipple peels off armored cable crust, exposed
Then cable core out is first wound using insulating tape, then wound using high-pressure glue band.
(3) after tightening between upper and lower end and intermediate casing connecting tube 5, then welding fills silicon in glue injection cavities body
Then rouge tightens hole for injecting glue screw until silicone grease overflows from the cable inlet at the top of upper end.
(4) single-core cable is finally drawn into ground, be connected with ground controller, realize that digital intelligent dispensing in underground is steady
Fixed communication and real-time control.
The present invention may be implemented cable digital intelligent seperated layer water injection well head armored cable and effectively bear and seal, and then will
Single-core cable draws ground, realizes that digital intelligent dispensing stablizes communication and real-time control.Realize that dispensing well is long-range in water-injection station
The real-time teletransmission of data such as test allotment and flow pressure and monitoring, have been verified newly for the fine seperated layer water injection of high-angle wells and horizontal wells
Approach.Without leakage, the cable connector is skillfully constructed, designs simply, using safe the present invention within 60MPa pressure lower 48 hours indoors
Reliably, good airproof performance, operating cost expense is low and work efficiency is high.
There is no the part described in detail to belong to the well known conventional means of the industry in present embodiment, does not chat one by one here
It states.The foregoing examples are only illustrative of the present invention, does not constitute the limitation to protection scope of the present invention, all and sheet
Invent it is the same or similar design all belong to the scope of protection of the present invention within.
Claims (6)
1. a kind of water injection well intelligently dispensed electric cable wellhead sealing device, which is characterized in that including upper end, lower end, connection
Manage (5) and pipe thread slip ring (2)；One end upper end of pipe thread slip ring (2) is tightly connected, and the other end and the one end of connecting tube (5) are close
The other end of envelope connection, connecting tube (5) connects lower end；Upper end, connecting tube (5) and lower end form cable passage.
2. a kind of water injection well according to claim 1 intelligently dispensed electric cable wellhead sealing device, which is characterized in that upper end
Head is the first inner cone (1), and the first inner cone (1) is hollow structure, and the first inner cone (1) is threadedly coupled with pipe thread slip ring (2)；
Lower end includes the second inner cone (6), compression leg (10) and pressure cap (11)；The setting that second inner cone (6) is threadedly coupled is connecting
(5) tip inside is managed, the second inner cone (6) is hollow structure, and end inner sleeve is provided with compression leg (10), the second inner cone (6)
It is cased with pressure cap (11) outside.
3. a kind of water injection well according to claim 2 intelligently dispensed electric cable wellhead sealing device, which is characterized in that pressure cap
(11) and compression leg (10) with the second inner cone (6) is to be threadedly coupled；Second inner cone (6) is provided on the inside of compression leg (10) and sets
It is equipped with rubber bodies (9), rubber bodies are ring assembling structure.
4. a kind of water injection well according to claim 2 intelligently dispensed electric cable wellhead sealing device, which is characterized in that second
It is provided with cable cone (7) in inner cone (6), the second inner cone (6) is provided with fastening nut close to the side screw thread of connecting tube
(8)。
5. a kind of water injection well according to claim 1 intelligently dispensed electric cable wellhead sealing device, which is characterized in that connection
Pipe (5) is divided into two sections, and two sections of connecting tubes are threadedly coupled by seal nipple (4), and junction is provided with sealing ring；Connecting tube
(5) internal to form glue injection cavities, connecting tube (5) surface is provided with hole for injecting glue, is provided with screw in hole for injecting glue.
6. a kind of water injection well according to claim 5 intelligently dispensed electric cable wellhead sealing device, which is characterized in that sealing
It is through-hole structure in connector (4), cable connector (3) is set in through-hole, are provided between cable connector (3) and seal nipple inner wall
Sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910054219.2A CN109707334B (en) | 2019-01-21 | 2019-01-21 | Intelligent split injection cable wellhead sealing device for water injection well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910054219.2A CN109707334B (en) | 2019-01-21 | 2019-01-21 | Intelligent split injection cable wellhead sealing device for water injection well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109707334A true CN109707334A (en) | 2019-05-03 |
| CN109707334B CN109707334B (en) | 2023-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910054219.2A Active CN109707334B (en) | 2019-01-21 | 2019-01-21 | Intelligent split injection cable wellhead sealing device for water injection well |
Country Status (1)
| Country | Link |
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| CN (1) | CN109707334B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005697A (en) * | 2019-11-28 | 2020-04-14 | 科莱斯（天津）电热科技有限公司 | High-pressure sealing device for heating cable |
| CN113090209A (en) * | 2021-03-17 | 2021-07-09 | 成都叁能锐达能源科技有限公司 | Cable dropping and fishing electric pump system |
| CN114744580A (en) * | 2022-02-25 | 2022-07-12 | 中国海洋石油集团有限公司 | Leak-proof and damp-proof sealing structure of electric control water injection working barrel and using method of leak-proof and damp-proof sealing structure |
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| US4379556A (en) * | 1982-06-14 | 1983-04-12 | Texaco Inc. | Stripping gland for multicables with connector |
| US5188173A (en) * | 1991-05-21 | 1993-02-23 | Schlumberger Technology Corporation | Pressure control system and cable guiding device for use in drilling wells |
| CN101644149A (en) * | 2009-08-25 | 2010-02-10 | 中国石油天然气集团公司 | Integral type level oil extraction wellhead equipment |
| CN104963645A (en) * | 2015-06-16 | 2015-10-07 | 中国石油天然气股份有限公司 | Cable-passing wellhead used for intelligent separated water injection of cable |
| CN204947554U (en) * | 2015-09-08 | 2016-01-06 | 中国石油天然气股份有限公司 | A kind of water injection well down-hole high pressure sealing cable junctions |
| CN106150394A (en) * | 2016-08-22 | 2016-11-23 | 中国石油天然气股份有限公司 | A kind of downhole oil pipe inner cable docking facilities |
| CN106761455A (en) * | 2016-12-09 | 2017-05-31 | 中国石油天然气股份有限公司 | The self power generation of preset cable shaft underground and cable butting technique |
| CN108104762A (en) * | 2017-12-18 | 2018-06-01 | 中国石油天然气股份有限公司 | A kind of wellhead cable sealing device and encapsulating method |
| CN207686658U (en) * | 2017-12-18 | 2018-08-03 | 中国石油天然气股份有限公司 | A kind of wellhead cable sealing device |
-
2019
- 2019-01-21 CN CN201910054219.2A patent/CN109707334B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4379556A (en) * | 1982-06-14 | 1983-04-12 | Texaco Inc. | Stripping gland for multicables with connector |
| US5188173A (en) * | 1991-05-21 | 1993-02-23 | Schlumberger Technology Corporation | Pressure control system and cable guiding device for use in drilling wells |
| CN101644149A (en) * | 2009-08-25 | 2010-02-10 | 中国石油天然气集团公司 | Integral type level oil extraction wellhead equipment |
| CN104963645A (en) * | 2015-06-16 | 2015-10-07 | 中国石油天然气股份有限公司 | Cable-passing wellhead used for intelligent separated water injection of cable |
| CN204947554U (en) * | 2015-09-08 | 2016-01-06 | 中国石油天然气股份有限公司 | A kind of water injection well down-hole high pressure sealing cable junctions |
| CN106150394A (en) * | 2016-08-22 | 2016-11-23 | 中国石油天然气股份有限公司 | A kind of downhole oil pipe inner cable docking facilities |
| CN106761455A (en) * | 2016-12-09 | 2017-05-31 | 中国石油天然气股份有限公司 | The self power generation of preset cable shaft underground and cable butting technique |
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| CN207686658U (en) * | 2017-12-18 | 2018-08-03 | 中国石油天然气股份有限公司 | A kind of wellhead cable sealing device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005697A (en) * | 2019-11-28 | 2020-04-14 | 科莱斯（天津）电热科技有限公司 | High-pressure sealing device for heating cable |
| CN113090209A (en) * | 2021-03-17 | 2021-07-09 | 成都叁能锐达能源科技有限公司 | Cable dropping and fishing electric pump system |
| CN114744580A (en) * | 2022-02-25 | 2022-07-12 | 中国海洋石油集团有限公司 | Leak-proof and damp-proof sealing structure of electric control water injection working barrel and using method of leak-proof and damp-proof sealing structure |
| CN114744580B (en) * | 2022-02-25 | 2024-01-02 | 中国海洋石油集团有限公司 | Leakage-proof and moisture-proof sealing structure of electric control water injection working cylinder and use method thereof |
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| Publication number | Publication date |
|---|---|
| CN109707334B (en) | 2023-09-26 |
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