CN104701805A - Downhole cable division connecting device - Google Patents
Downhole cable division connecting device Download PDFInfo
- Publication number
- CN104701805A CN104701805A CN201310658693.9A CN201310658693A CN104701805A CN 104701805 A CN104701805 A CN 104701805A CN 201310658693 A CN201310658693 A CN 201310658693A CN 104701805 A CN104701805 A CN 104701805A
- Authority
- CN
- China
- Prior art keywords
- cable
- connecting groove
- overcoat
- device body
- hole
- 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
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/20—Cable fittings for cables filled with or surrounded by gas or oil
- H02G15/24—Cable junctions
Landscapes
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses a downhole cable division connecting device comprising a device body, an upper connecting head and a lower connecting head. The device body is provided with an eccentric cylindrical channel; the lower end of the upper connecting head is connected to the upper end of the cylindrical channel of the device body in a screwed manner, and the upper end of the lower connecting head is connected to the lower end of the cylindrical channel of the device body in a screwed manner; the side wall of the device body is provided with a cable connecting groove, the top of the device body is provided with a main cable through hole allowing a main cable to penetrate towards the cable connecting groove, and the bottom of the device body is provided with a branch cable through hole used for allowing a branch cable to penetrate towards the the cable connecting groove. A cable can be divided into a plurality of branch cables, the problem that in one oil gas well, a plurality of tools downhole correspond to a plurality of cables from the well mouth to downhole as required is solved, cable cost is saved, on-site manual construction intensity is reduced, labor force is reduced, and the cable can be divided on oil gas well construction site conveniently.
Description
Technical field
The present invention relates to cable tapping device, specifically underground cable coupler.
Background technology
Constantly promote along with oil field development is intelligent, also more and more higher to the development requires of oil gas water well, specially require and meticulous accurate seperated layer water injection, oil production by layer and zonal testing are carried out to oil gas water well.In order to reach these targets, under usually requiring, enter various instrument under the control wells such as liquid controling pipe line, capillary tubing, optical fiber, special cable.In this kind of downhole tool running, need to connect corresponding cable respectively to control, when the downhole tool of same oil gas water well is more, due to the particular surroundings of oil gas water well job site, do not allow to carry out on-site cable branch welding etc., cable from well head to down-hole is also corresponding to be increased, and cable cost is high, and difficulty of construction is larger.
Summary of the invention
The object of the present invention is to provide underground cable coupler, only need single line cable from well head to downhole tool section, connecting downhole cable breakout during branch, is branched off into many cables by single line cable, solves above technical barrier.
In order to reach above-mentioned purpose, present invention employs following technical scheme, underground cable coupler, comprise body, top connection, lower contact, described body offers off-centre operation cylindrical passageway, described top connection lower end is threaded connection in body interior cylindrical channel upper end, described lower contact upper end is threaded connection in body interior cylindrical channel bottom, described body sidewall offers connecting groove, offer from body top to connecting groove for the main line through hole through main cables, offer from body bottom to connecting groove for point line three-way hole through point cable.
Described main line through hole is consistent with point mutual axis of line three-way hole, and while and the axis of off-centre operation cylindrical passageway parallel.
Described main cables is provided with sealing nail pressing in the porch through main line through hole, and the described point of exit that cable is passing separated time passage is also provided with sealing nail pressing.
Outside described body, cover has overcoat, and the connecting groove of body sidewall is closed into an annular seal space by overcoat.
Stop pin is provided with between described overcoat and body.
Sealed by sealing ring between described body and overcoat.
Compared to prior art, the present invention has following beneficial effect:
Underground cable coupler, the welding of on-site cable branch can not be carried out in oil gas water well job site, by connecting downhole cable breakout, many cables are branched off into by single line cable, solve the downhole tool of same oil gas water well more time need corresponding many cable problems from well head to down-hole, save cable expense expenditure, alleviate on-the-spot artificial construction's intensity, decrease manpower demand, also facilitate and carry out on-site cable branch in oil gas water well job site.Tool of the present invention has the following advantages: simple, the easy processing and manufacturing of component parts structure, device are easy to assembling, rapid operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of underground cable coupler of the present invention.
In figure: 1, top connection; 2, main cables; 3, nail pressing is sealed; 4, body; 5, stop pin; 6, overcoat; 7, sealing ring; 8, cable is divided; 9, lower contact.
Embodiment
Detailed description for the present invention and technology contents, coordinate accompanying drawing to be described as follows, but accompanying drawing only provides with reference to the use with explanation, is not used for being limited the present invention.
As shown in Figure 1, underground cable coupler, comprise body 4, top connection 1, lower contact 9, described body offers off-centre operation cylindrical passageway, described top connection lower end is threaded connection in body interior cylindrical channel upper end, described lower contact upper end is threaded connection in body interior cylindrical channel bottom, described body sidewall offers connecting groove, offer from body top to connecting groove for the main line through hole through main cables 2, offer from body bottom to connecting groove for point line three-way hole through point cable 8.Described main line through hole is consistent with point mutual axis of line three-way hole, and while and the axis of off-centre operation cylindrical passageway parallel.Outside described body, cover has overcoat 6, and the connecting groove of body sidewall is closed into an annular seal space by overcoat.Stop pin 5 is provided with between described overcoat and body.Sealed by sealing ring 7 between described body and overcoat.Described main cables is provided with sealing nail pressing 3 in the porch through main line through hole, and the described point of exit that cable is passing separated time passage is also provided with sealing nail pressing.
During use, underground cable coupler is connected to the tubing string position need carrying out cable branch, main cables 2 from well head to underground cable coupler is connected with body 4 by sealing nail pressing 3, point cable 8 below underground cable coupler is connected with body 4 by sealing nail pressing 3, sealing nail pressing 3 and body 4 to be connected by threaded engagement and to seal, main cables 2 and a point cable 8 internal wiring connector are installed between body 4 and overcoat 6, can not affect by extraneous oil gas water, overcome the interference of pit shaft high pressure, main cables 2 be connected with a point cable 8 intact after tighten overcoat 6 again, body 4 and overcoat 6 prevent from loosening by stop pin 5, body 4 and overcoat 6 are by sealing ring 7 fitted seal.The present invention has simple, the easy processing and manufacturing of component parts structure, device is easy to assembling, the advantage of rapid operation.
The foregoing is only preferred embodiment of the present invention, be not used to limit the scope of the claims of the present invention, other use the equivalence of patent spirit of the present invention to change, and all should all belong to the scope of the claims of the present invention.
Claims (6)
1. underground cable coupler, it is characterized in that, comprise body, top connection, lower contact, described body offers off-centre operation cylindrical passageway, described top connection lower end is threaded connection in body interior cylindrical channel upper end, described lower contact upper end is threaded connection in body interior cylindrical channel bottom, described body sidewall offers connecting groove, offer from body top to connecting groove for the main line through hole through main cables, offer from body bottom to connecting groove for point line three-way hole through point cable.
2. underground cable coupler according to claim 1, is characterized in that, described main line through hole is consistent with point mutual axis of line three-way hole, and while and the axis of off-centre operation cylindrical passageway parallel.
3. underground cable coupler according to claim 2, is characterized in that, described main cables is provided with sealing nail pressing in the porch through main line through hole, and the described point of exit that cable is passing separated time passage is also provided with sealing nail pressing.
4. underground cable coupler according to claim 1, is characterized in that, outside described body, cover has overcoat, and the connecting groove of body sidewall is closed into an annular seal space by overcoat.
5. underground cable coupler according to claim 4, is characterized in that, is provided with stop pin between described overcoat and body.
6. underground cable coupler according to claim 4, is characterized in that, is sealed between described body and overcoat by sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310658693.9A CN104701805B (en) | 2013-12-09 | 2013-12-09 | Underground cable coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310658693.9A CN104701805B (en) | 2013-12-09 | 2013-12-09 | Underground cable coupler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104701805A true CN104701805A (en) | 2015-06-10 |
| CN104701805B CN104701805B (en) | 2017-06-09 |
Family
ID=53348677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310658693.9A Active CN104701805B (en) | 2013-12-09 | 2013-12-09 | Underground cable coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104701805B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201024974Y (en) * | 2007-05-30 | 2008-02-20 | 大庆油田有限责任公司 | Sealer for cable penetrating under well |
| CN101832117A (en) * | 2010-06-09 | 2010-09-15 | 中国石油天然气集团公司 | Over-cable connection joint |
| CN101845943A (en) * | 2010-06-09 | 2010-09-29 | 中国石油天然气集团公司 | Universal packer for through cable |
| CN201674197U (en) * | 2010-06-09 | 2010-12-15 | 中国石油天然气集团公司 | Over-cable connecting joint |
| CN201705281U (en) * | 2010-06-09 | 2011-01-12 | 中国石油天然气集团公司 | Cable through universal packer |
| CN202970682U (en) * | 2012-09-27 | 2013-06-05 | 李春梅 | Cable passing mechanism for packer |
| CN203188968U (en) * | 2013-05-02 | 2013-09-11 | 中国石油天然气股份有限公司 | Cable-passing washable well packer |
| CN203201524U (en) * | 2013-05-07 | 2013-09-18 | 中国石油天然气股份有限公司 | Phi 95mm self-balancing cable-passing packer |
-
2013
- 2013-12-09 CN CN201310658693.9A patent/CN104701805B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201024974Y (en) * | 2007-05-30 | 2008-02-20 | 大庆油田有限责任公司 | Sealer for cable penetrating under well |
| CN101832117A (en) * | 2010-06-09 | 2010-09-15 | 中国石油天然气集团公司 | Over-cable connection joint |
| CN101845943A (en) * | 2010-06-09 | 2010-09-29 | 中国石油天然气集团公司 | Universal packer for through cable |
| CN201674197U (en) * | 2010-06-09 | 2010-12-15 | 中国石油天然气集团公司 | Over-cable connecting joint |
| CN201705281U (en) * | 2010-06-09 | 2011-01-12 | 中国石油天然气集团公司 | Cable through universal packer |
| CN202970682U (en) * | 2012-09-27 | 2013-06-05 | 李春梅 | Cable passing mechanism for packer |
| CN203188968U (en) * | 2013-05-02 | 2013-09-11 | 中国石油天然气股份有限公司 | Cable-passing washable well packer |
| CN203201524U (en) * | 2013-05-07 | 2013-09-18 | 中国石油天然气股份有限公司 | Phi 95mm self-balancing cable-passing packer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104701805B (en) | 2017-06-09 |
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| GR01 | Patent grant |