CN104963645A - Cable-passing wellhead for intelligent separate injection of cables - Google Patents
Cable-passing wellhead for intelligent separate injection of cables Download PDFInfo
- Publication number
- CN104963645A CN104963645A CN201510332426.1A CN201510332426A CN104963645A CN 104963645 A CN104963645 A CN 104963645A CN 201510332426 A CN201510332426 A CN 201510332426A CN 104963645 A CN104963645 A CN 104963645A
- Authority
- CN
- China
- Prior art keywords
- cable
- central passage
- sleeve
- wellhead
- connection
- 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.)
- Pending
Links
- 238000002347 injection Methods 0.000 title abstract description 23
- 239000007924 injection Substances 0.000 title abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 29
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 14
- 229910052802 copper Inorganic materials 0.000 claims description 14
- 239000010949 copper Substances 0.000 claims description 14
- 239000004519 grease Substances 0.000 claims description 7
- 229920001296 polysiloxane Polymers 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 20
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 abstract description 5
- 238000011161 development Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 239000002332 oil field water Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 11
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention belongs to the technical field of oilfield water injection development processes, and relates to a cable-passing wellhead for intelligent separate injection of cables, which comprises a sleeve four-way joint arranged at the wellhead, wherein the sleeve four-way joint is connected with a sleeve water outlet valve, a three-way joint is arranged between the sleeve four-way joint and the sleeve water outlet valve, two ends of the three-way joint are respectively connected with the sleeve four-way joint and the sleeve water outlet valve, the rest one port is connected with a high-voltage sealing cable joint through a screw thread, and the cables sequentially pass through the sleeve four-way joint, the three-way joint and the high-voltage sealing cable joint after coming out of the. Compare in high-pressure well head commonly used, add a tee bend, link to each other with a set of high-pressure seal cable joint through screw thread and tee bend, high-pressure seal cable joint can be connected the cable in the well with external circuit, further improves the digital level of water injection, realizes the branch and annotates the well at the purpose of water injection station remote test allotment, data real-time transmission, has advantages such as the design is simple, use safe and reliable, the leakproofness is good, with low costs.
Description
Technical field
The invention belongs to water flooding technology field, relate to high-pressure water injection well to make a slip of the tongue the Sealing Technology of cable, particularly a kind of for there being the cable wellhead excessively of cable intelligence dispensing, can be used for oil field to have in cable intelligence separate zone waterflooding technology, cable realizes the new type of water flooding mouth of well head and cable seal, insulation by high pressure water injection wellhead.
Background technology
Along with deepening continuously of oil field development, between different oil reservoir, stratum energy all declines very fast and there is very big-difference, has a strong impact on oil field and continues Efficient Development, carries out seperated layer water injection supplement the effective means that stratum energy is raising recovery ratio to different oil reservoir.
Now conventional zonal injection technology mainly contains the techniques such as water injection through tubing and casing, bridge-type eccentric dispensing, bridge-type concentric separated-injection, along with the iterative method of oil field fine-grained management, existing zonal injection technology existence survey tune is more or less hampered, and rate is high, the survey tune cycle is long, allocate the problems such as precision is low.And the generation of these problems, majority is because the reason of well head high pressure, and wireless transmission can cause the inaccuracy surveying adjusting data, and has cable to transmit, because the reason of well head high pressure, sealing problem not easily solves.
Summary of the invention
The object of the present invention is to provide a kind of have a cable intelligence dispensing cross cable high pressure sealing well head, it can solve cable intelligence zonal injection technology cable realizes well head and cable seal, insulation problem by high pressure water injection wellhead.
For this reason, the invention provides a kind of for there being the cable wellhead excessively of cable intelligence dispensing, comprise the four-way junction of casing being arranged on well head, a port of four-way junction of casing is connected to sleeve pipe outlet valve, a threeway is connected between four-way junction of casing with sleeve pipe outlet valve, the remaining port of this threeway high pressure sealing cable connector by screwed connection, cable from well head out after successively through four-way junction of casing, threeway and high pressure sealing cable connector, be then connected with external circuit.
Described high pressure sealing cable connector comprises hollow adapter, hollow adapter upper end is connected with the top connection assembly with central passage, hollow adapter top fixed sleeves is equipped with the adapter sleeve for connecting tee, hollow adapter lower end is connected with the connection plug with central passage, the upper end of the central passage of connection plug is provided with penetrating seal rubber plug, the central passage lower end of connection plug is gradually wide wiring cavity, there is tube connector outside, connection plug lower end by screwed connection, and tube connector lower end is connected to the lower contact assembly with central passage.
Described top connection assembly comprises the top connection with central passage, the central passage lower end of top connection is taper, the tapered central passage of top connection is built with the copper centrum being with central passage, and the tapered central passage lower end of top connection spins with the pressure cap of central passage;
Described lower contact assembly comprises the lower contact with central passage, the central passage upper end of lower contact is taper, the tapered central passage of lower contact is built with the copper centrum being with central passage, and the tapered central passage upper end of lower contact spins with the pressure cap of central passage.
Silicone grease is filled in described hollow adapter.
Beneficial effect of the present invention: of the present invention this for there being the cable wellhead excessively of cable intelligence dispensing, compared to conventional high-pressure well mouth, set up a threeway, a set of high pressure sealing cable connector is connected with threeway by screw thread, cable in well can be connected with external circuit by high pressure sealing cable connector, further raising water filling level of digital, realize the object of dispensing well at water-injection station remote testing allotment, real-time data transmission, there is simplicity of design, safe and reliable, good airproof performance, low cost and other advantages.
Below with reference to accompanying drawing, the present invention is described in further details.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of high pressure sealing cable connector.
Description of reference numerals: 1, top connection; 2, copper centrum; 3, pressure cap; 4, adapter sleeve; 5, hollow adapter; 6, seal rubber plug; 7, connection plug; 8, tube connector; 9, lower contact; 10, wiring cavity; 11, four-way junction of casing; 12, threeway; 13, sleeve pipe outlet valve; 14, high pressure sealing cable connector.
Detailed description of the invention
In order to solve high angle hole, deep-well, produced-water reinjection well, horizontal well seperated layer water injection and a test allotment difficult problem, by the further investigation of zonal injection technology, the development of key tool, inventor adopts cable intelligence zonal injection technology technology, explore directional well, horizontal well in segments water filling new way, further raising water filling level of digital, realize the object of dispensing well at water-injection station remote testing allotment, real-time data transmission, carried out and had the technical research of cable intelligence dispensing.In order to solve the sealing problem of cable intelligence zonal injection technology cable by high-pressure well mouth, devising cable intelligence dispensing and having crossed cable wellhead.
Embodiment 1:
The present embodiment provides a kind of for there being the cable wellhead excessively of cable intelligence dispensing, as shown in Figure 1, comprise the four-way junction of casing 11 being arranged on well head, a port of four-way junction of casing 11 is connected to sleeve pipe outlet valve 13, a threeway 12 is connected between four-way junction of casing 11 with sleeve pipe outlet valve 13, the remaining port of this threeway 12 high pressure sealing cable connector 14 by screwed connection, cable from well head out after successively through four-way junction of casing 11, threeway 12 and high pressure sealing cable connector 14, be then connected with external circuit.
The present embodiment this for have cable intelligence dispensing cross cable wellhead, shown in Fig. 1, threeway 12 is arranged on high pressure water injection wellhead four-way junction of casing sleeve valve position, sleeve valve and other parts are outwards postponed successively, and connecting line proper extension ensures installs normal, good seal.
Well head is connected with oil pipe, after screw thread tightens, by cable from the inner lead-in bushing four-way of well head (installing threeway 12 side), draw threeway 12 again, then well head is installed, after threeway 12, cable is introduced high pressure sealing cable connector 14, by high pressure sealing cable connector 14, just the connection with external circuit can be realized, its connection all can complete in high pressure sealing cable connector 14, can further improve water filling level of digital like this, realize the object of dispensing well at water-injection station remote testing allotment, real-time data transmission.
Embodiment 2:
The present embodiment is described further to high pressure sealing cable connector 14, as shown in Figure 2, high pressure sealing cable connector 14 comprises hollow adapter 5, hollow adapter 5 upper end is connected with the top connection assembly with central passage, hollow adapter 5 top fixed sleeves is equipped with the adapter sleeve 4 for connecting tee 12, hollow adapter 5 lower end is connected with the connection plug 7 with central passage, the upper end of the central passage of connection plug 7 is provided with penetrating seal rubber plug 6, the central passage lower end of connection plug 7 is gradually wide wiring cavity 10, there is tube connector 8 outside, connection plug 7 lower end by screwed connection, tube connector 8 lower end is connected to the lower contact assembly with central passage, silicone grease is filled in hollow adapter 5.
It is inner that well inner cable first enters high pressure sealing cable connector 14 by the central passage of top connection assembly, wiring cavity 10 is entered by seal rubber plug 6, simultaneously, the cable connector of external circuit enters wiring cavity 10 by the central passage of lower contact assembly, in wiring cavity 10, the cable connector come in well is connected with the cable connector of external circuit, realizes the connection of well inner cable and external circuit.In hollow adapter 5, fill silicone grease, silicone grease can play certain seal box insulating effect, makes safety and the insurance more of whole device.
Embodiment 3:
On the basis of embodiment 1 and embodiment 2, in the present embodiment, top connection assembly comprises the top connection 1 with central passage, the central passage lower end of top connection 1 is taper, the tapered central passage of top connection 1 is built with the copper centrum 2 being with central passage, and the tapered central passage lower end of top connection 1 spins with the pressure cap 3 of central passage.
Lower contact assembly comprises the lower contact 9 with central passage, the central passage upper end of lower contact 9 is taper, the tapered central passage of lower contact 9 is built with the copper centrum 2 being with central passage, and the tapered central passage upper end of lower contact 9 spins with the pressure cap 3 of central passage.
Top connection assembly in the present embodiment and lower contact assembly except allow cable pass through except there is fixing effect, realize in the following manner: cable is made up of the cable core of the steel wire winding inside of outside, cable is through top connection 1(or lower contact 9) and copper centrum 2 after, then the steel wire of cable is peeled off from cable core, expose inner cable core, then by steel wire from the outside reverse reflex of copper centrum 2, then pressure cap 3 is tightened, pressure cap 3 compresses copper centrum 2, make copper centrum 2 and top connection 1(or lower contact 9) clamping steel wire, cable core now stretches out from the central passage of pressure cap 3, all the connection of cable core like this in the connection of high pressure sealing cable connector 14 inside, and undertaken sealing and insulating by silicone grease.
In sum, this high pressure sealing cable connector 14 of the present invention is by its function of following process implementation:
(1) by Fig. 1, threeway 12 is arranged on high pressure water injection wellhead four-way junction of casing sleeve valve position, sleeve valve and other parts are outwards postponed successively, and connecting line proper extension ensures installs normal, good seal.
(2) well head is connected with oil pipe, after screw thread tightens, by cable from the inner lead-in bushing four-way of well head (installing threeway 12 side), draw threeway 12 again, then well head is installed.
(3) top connection 1, copper cone 2, pressure cap 3 are screwed out from well head high pressure sealing cable connector 14, then top connection 1 and pressure cap 3 are taken apart (screwed connection), then cable is passed top connection 1, copper cone 2.
(4) cable outer layer steel wire is got around expose internal electrical cable core, cable core length should be not less than 1m, by one one, steel wire getting around from outside reverse reflex, pressure cap 3 is connected tightly through cable core with top connection 1, guarantee that cable does not come off, reliably fastening, then unnecessary steel wire is blocked.
(5) top connection 1, copper cone 2, pressure cap 3 are screwed in well head high pressure sealing cable connector 14 main body, tighten.
(6) seal rubber plug 6 is screwed out from connection plug 7, then cable core is extracted out, and through in seal rubber plug 6 and connection plug 7 to wiring cavity 10.
(7) after a large amount of silicone grease is spread in the painting of seal rubber plug 6 external surface, by seal rubber plug 6, screw with connection plug 7, such cable core just can be connected to external circuit.
More than exemplifying is only illustrate of the present invention, does not form the restriction to protection scope of the present invention, everyly all belongs within protection scope of the present invention with the same or analogous design of the present invention.
Claims (4)
1. one kind for have cable intelligence dispensing cross cable wellhead, comprise the four-way junction of casing (11) being arranged on well head, a port of four-way junction of casing (11) is connected to sleeve pipe outlet valve (13), it is characterized in that: between four-way junction of casing (11) with sleeve pipe outlet valve (13), be connected a threeway (12), the remaining port of this threeway (12) high pressure sealing cable connector (14) by screwed connection, cable from well head out after successively through four-way junction of casing (11), threeway (12) and high pressure sealing cable connector (14), be then connected with external circuit.
2. as claimed in claim 1 for there being the cable wellhead excessively of cable intelligence dispensing, it is characterized in that: described high pressure sealing cable connector (14) comprises hollow adapter (5), hollow adapter (5) upper end is connected with the top connection assembly with central passage, hollow adapter (5) top fixed sleeves is equipped with the adapter sleeve (4) for connecting tee (12), hollow adapter (5) lower end is connected with the connection plug (7) with central passage, the upper end of the central passage of connection plug (7) is provided with penetrating seal rubber plug (6), the central passage lower end of connection plug (7) is gradually wide wiring cavity (10), there is tube connector (8) outside, connection plug (7) lower end by screwed connection, tube connector (8) lower end is connected to the lower contact assembly with central passage.
3. as claimed in claim 2 for there being the cable wellhead excessively of cable intelligence dispensing, it is characterized in that: described top connection assembly comprises the top connection (1) with central passage, the central passage lower end of top connection (1) is taper, the tapered central passage of top connection (1) is built with the copper centrum (2) being with central passage, and the tapered central passage lower end of top connection (1) spins with the pressure cap (3) of central passage;
Described lower contact assembly comprises the lower contact (9) with central passage, the central passage upper end of lower contact (9) is taper, the tapered central passage of lower contact (9) is built with the copper centrum (2) being with central passage, and the tapered central passage upper end of lower contact (9) spins with the pressure cap (3) of central passage.
4., as claimed in claim 2 or claim 3 for there being the cable wellhead excessively of cable intelligence dispensing, it is characterized in that: in described hollow adapter (5), fill silicone grease.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510332426.1A CN104963645A (en) | 2015-06-16 | 2015-06-16 | Cable-passing wellhead for intelligent separate injection of cables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510332426.1A CN104963645A (en) | 2015-06-16 | 2015-06-16 | Cable-passing wellhead for intelligent separate injection of cables |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104963645A true CN104963645A (en) | 2015-10-07 |
Family
ID=54217706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510332426.1A Pending CN104963645A (en) | 2015-06-16 | 2015-06-16 | Cable-passing wellhead for intelligent separate injection of cables |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104963645A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106611942A (en) * | 2016-05-11 | 2017-05-03 | 普斐特油气工程（江苏）有限公司 | Electric submersible pump wellhead cable outgoing structure |
| CN108104762A (en) * | 2017-12-18 | 2018-06-01 | 中国石油天然气股份有限公司 | Wellhead cable sealing device and method |
| 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 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5201814A (en) * | 1992-01-23 | 1993-04-13 | Conoco Inc. | Breakaway coupling device |
| CN2372449Y (en) * | 1999-04-26 | 2000-04-05 | 王士孝 | Quick compling perforation bridle |
| CN2499637Y (en) * | 2001-10-19 | 2002-07-10 | 中国石油天然气股份有限公司 | Long-acting sealer for well testing cable joint |
| CN2903370Y (en) * | 2006-06-16 | 2007-05-23 | 中国石化股份胜利油田分公司现河采油厂 | Well logging horse headstall |
| CN201106447Y (en) * | 2007-11-15 | 2008-08-27 | 中国石油天然气股份有限公司 | Underground pressure monitoring device for coal-bed gas well |
| CN201277028Y (en) * | 2008-08-05 | 2009-07-22 | 北京阿达尔石油技术有限责任公司 | Permanent pressure thermometer |
| CN101509371A (en) * | 2009-03-12 | 2009-08-19 | 西安通源石油科技股份有限公司 | Petroleum borehole log bridle |
-
2015
- 2015-06-16 CN CN201510332426.1A patent/CN104963645A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5201814A (en) * | 1992-01-23 | 1993-04-13 | Conoco Inc. | Breakaway coupling device |
| CN2372449Y (en) * | 1999-04-26 | 2000-04-05 | 王士孝 | Quick compling perforation bridle |
| CN2499637Y (en) * | 2001-10-19 | 2002-07-10 | 中国石油天然气股份有限公司 | Long-acting sealer for well testing cable joint |
| CN2903370Y (en) * | 2006-06-16 | 2007-05-23 | 中国石化股份胜利油田分公司现河采油厂 | Well logging horse headstall |
| CN201106447Y (en) * | 2007-11-15 | 2008-08-27 | 中国石油天然气股份有限公司 | Underground pressure monitoring device for coal-bed gas well |
| CN201277028Y (en) * | 2008-08-05 | 2009-07-22 | 北京阿达尔石油技术有限责任公司 | Permanent pressure thermometer |
| CN101509371A (en) * | 2009-03-12 | 2009-08-19 | 西安通源石油科技股份有限公司 | Petroleum borehole log bridle |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106611942A (en) * | 2016-05-11 | 2017-05-03 | 普斐特油气工程（江苏）有限公司 | Electric submersible pump wellhead cable outgoing structure |
| CN108104762A (en) * | 2017-12-18 | 2018-06-01 | 中国石油天然气股份有限公司 | Wellhead cable sealing device and method |
| CN108104762B (en) * | 2017-12-18 | 2024-03-01 | 中国石油天然气股份有限公司 | Wellhead cable sealing device and sealing method |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106150394B (en) | Cable interfacing apparatus in oil pipe in pit | |
| CN206220877U (en) | Underground cable wet joint suitable for cabled digital separate injection | |
| CN110397407B (en) | Double-shoulder conductive drill rod | |
| CN104963645A (en) | Cable-passing wellhead for intelligent separate injection of cables | |
| CN105332677A (en) | Cable direct control type water distribution system | |
| CN202228034U (en) | Wellhead device for pipeline crossing | |
| CN204947554U (en) | Water injection well is high-pressure seal cable joint in pit | |
| US10689917B2 (en) | Simplified packer penetrator and method of installation | |
| CN109707334B (en) | Intelligent split injection cable wellhead sealing device for water injection well | |
| CN103151755B (en) | Improve method and the structure of downhole instrument stube cable reliability | |
| CN208330213U (en) | Metal pipe joint for connecting composite continuous oil pipe with built-in cable | |
| CN206271959U (en) | A kind of single-core cable joint tool | |
| CN204941496U (en) | Direct-reading digital intelligent separate-layer water injection process pipe column | |
| CN208190227U (en) | A kind of straight-through transition joint copper protective shell of high-tension cable | |
| CN206016702U (en) | Cable interfacing apparatus in oil pipe in pit | |
| CN206409200U (en) | One kind has the digital dispensing downhole cable wet joint instrument of cable | |
| CN105089622B (en) | Horizontal well rod conveying logging process rod pipe column | |
| CN105041259B (en) | Inflatable packer capable of passing through double cables and method | |
| CN202997494U (en) | Down hole apparatus cable junction structure | |
| RU179962U1 (en) | Device for current supply to the electric drill while drilling wells | |
| CN205135528U (en) | Cable-passing packer for separately injecting cables | |
| CN204984347U (en) | Slip casting tubular column is backfilled with casing annulus cement to no coupling well | |
| CN206022746U (en) | Electrodrill cable plug gum cover sealing structure | |
| CN204782960U (en) | Integrated tubular column of water water injection sand control is adopted to individual well | |
| CN202866785U (en) | Circuit switching and mud flow guiding integrated device of measuring instrument while drilling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151007 |