CN105789935A - Cable connection device for electric drill well drilling system - Google Patents
Cable connection device for electric drill well drilling system Download PDFInfo
- Publication number
- CN105789935A CN105789935A CN201610258472.6A CN201610258472A CN105789935A CN 105789935 A CN105789935 A CN 105789935A CN 201610258472 A CN201610258472 A CN 201610258472A CN 105789935 A CN105789935 A CN 105789935A
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- China
- Prior art keywords
- cable
- connection joint
- cable connection
- drilling rod
- joint
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- Pending
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 77
- 210000001503 joint Anatomy 0.000 abstract 2
- 238000003032 molecular docking Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
- H01R11/05—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations having different types of direct connections
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/023—Arrangements for connecting cables or wirelines to downhole devices
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Cable Accessories (AREA)
Abstract
The invention discloses a cable connection device for an electric drill well drilling system, which comprises a drilling rod connection unit. The drilling rod connection unit comprises an upper cable joint, a drilling rod, a lower cable joint and a cable, wherein the upper cable joint and the lower cable joint are detachably connected onto the upper end and the lower end of the drilling rod respectively; the upper cable joint, the drilling rod and the lower cable joint are internally provided with a vertically-through axial channel; the cable is located in the axial channel, and the upper end and the lower end of the cable are respectively fixed in the upper cable joint and the lower cable joint; the upper cable joint and the lower cable joint can be in mutual butt joint connection; and the upper end and the lower end of the cable are provided with cable joints which can be inserted mutually. According to the cable connection device of the invention, two ends of the traditional drilling rod are respectively connected with the upper cable joint and the lower cable joint, two ends of the cable are respectively connected onto the corresponding upper cable joint and the lower cable joint, the structure of the traditional drilling rod is not changed, and the cable connection mode is reliable.
Description
Technical field
The present invention is the cabled manner about a kind of oil and gas well drilling field, particularly relates to the cable connecting arrangement of a kind of electrodrill well system.
Background technology
Electrodrill well system is to adopt electro-motor to replace classic screw, turbine to carry out oilfield prospecting developing.Relatively conventional screw rod, turbodrilling mode, electrodrill well system has the advantage that can not needing drilling fluid is driven, and is suitable for adopting any circulatory mediator from air to mud；Cable can realize the two-way high capacity transmission of shaft bottom information and surface instruction simultaneously, for effectively preventing down-hole accident to provide real time information；Can independently control the pressure of the drill (moment of torsion), pumpage (pump pressure) and drill speed, optimize drilling parameter, improve bit speed；Change according to voltage, current parameters judges bit operation state, controls drilling process.
Electrodrill well system requires over drilling rod to carry out the layout of cable, and connect the relatively costly of cable by conventional drill is transformed, therefore how to find a kind of reliable cabled manner of electrodrill well system on the basis of jar rod structure be urgent problem not changing.
Thus, the present inventor is by experience and the practice of being engaged in relevant industries for many years, it is proposed to the cable connecting arrangement of a kind of electrodrill well system, with the defect overcoming prior art to exist.
Summary of the invention
It is an object of the invention to provide the cable connecting arrangement of a kind of electrodrill well system, it is not necessary to changing traditional jackrod structure, cabled manner is reliable.
The object of the present invention is achieved like this, the cable connecting arrangement of a kind of electrodrill well system, and described cable connecting arrangement includes drilling rod and connects unit, and described drilling rod connects unit and includes cable connection joint, drilling rod, lower cable connection joint and cable；
Described upper cable connection joint, described lower cable connection joint are detachably connected on the top and bottom of described drilling rod respectively；The inside of described upper cable connection joint, described drilling rod and described lower cable connection joint is provided with the axial passage of up/down perforation；Described cable is positioned at described axial passage, and the top and bottom of described cable are separately fixed in described upper cable connection joint and described lower cable connection joint；
Described upper cable connection joint can be mutually butted with described lower cable connection joint and be connected；The top and bottom of described cable are respectively equipped with the first cable connector and the second cable connector that can be mutually inserted.
In a better embodiment of the present invention, the inwall of described upper cable connection joint is provided with prominent first and connects projection, described first connects projection is provided with screwed hole, being integrally formed with installing plate on described first cable connector, described installing plate is connected by screw on the described first screwed hole connecting projection.
In a better embodiment of the present invention, described first connects projection is provided with two, and two described first connect projection and are symmetrical arranged on the cross section of described axial passage.
In a better embodiment of the present invention, described upper cable connection joint is cylindrical sleeve, the top and bottom of described upper cable connection joint are respectively equipped with taper box thread, taper male thread, and the upper end of described drilling rod is provided with the taper box thread coordinated with described upper cable connection joint.
In a better embodiment of the present invention, the inwall of described lower cable connection joint is provided with prominent second and connects projection, and described second cable connector is integrally formed with installing plate；Described second connects the side being used for connecting described installing plate on projection is provided with groove, is provided with screwed hole in the bottom of described groove, and described installing plate is embedded in described groove and is connected by screw on the described second screwed hole connecting projection.
In a better embodiment of the present invention, described lower cable connection joint is additionally provided with cover plate, described cover plate is provided with perforation and is enclosed within outside described service message cable joint, described installing plate lid is located in described groove by described cover plate, and described cover plate, described installing plate are connected on the described second screwed hole connecting projection each through screw.
In a better embodiment of the present invention, described second connects projection is provided with two, and two described second connect projection and are symmetrical arranged on the cross section of described axial passage.
In a better embodiment of the present invention, described lower cable connection joint is cylindrical sleeve, the top and bottom of described lower cable connection joint are respectively equipped with taper box thread, taper male thread, and the lower end of described drilling rod is provided with the taper male thread coordinated with described lower cable connection joint；The lower end of described lower cable connection joint is additionally provided with coaxially around at the guide section outside described service message cable joint.
In a better embodiment of the present invention, described drilling rod is connected with described upper cable connection joint and described lower cable connection joint coaxial threaded respectively, and described axial passage is the cylindrical channel coaxial with described drilling rod, described upper cable connection joint and described lower cable connection joint；Described first cable connector is female cable connector, and described second cable connector is service message cable joint；Described female cable connector is coaxially fixed in described upper cable connection joint；Described service message cable joint is coaxially fixed in described lower cable connection joint.
In a better embodiment of the present invention, described drilling rod connects unit and is provided with at least two, and the described upper cable connection joint that drilling rod described in the described lower cable connection joint and second of drilling rod connection unit described in first connects unit is threaded；Drilling rod described in first connects described second cable connector of unit and is plugged on described first cable connector of drilling rod connection unit described in second, the like, described drilling rod connects unit and is sequentially connected with.
From the above mentioned, the cable connecting arrangement of the present invention adopts cable connection joint, lower cable connection joint on the two ends of conventional drill connect respectively, then the two ends of cable are connected on the cable connection joint up and down of correspondence, the structure of conventional drill need not be changed, and cabled manner is reliable.
Accompanying drawing explanation
The following drawings is only intended to, in the present invention being schematically illustrated and explaining, not delimit the scope of the invention.Wherein:
Fig. 1: for the structural representation of cable connecting arrangement of the present invention.
Fig. 2: for the structural representation of the upper cable connection joint of the present invention.
Fig. 3: for the structural representation of the lower cable connection joint of the present invention.
Fig. 4: for the axial view of the upper cable connection joint of the present invention.
Fig. 5: for the axial view of the lower cable connection joint of the present invention.
Fig. 6: for the axial view of the cable connector of the present invention.
Description of reference numerals:
10-drilling rod connects unit
The upper cable connection joint of 1-
2-drilling rod
Cable connection joint under 3-
31-guide section
32-shoulder
4-cable
Mother's 41-cable connector
42-service message cable joint
5-axial passage
6-first connects projection
7-installing plate
8-second connects projection
81-groove
9-cover plate
Detailed description of the invention
In order to the technical characteristic of the present invention, purpose and effect are more clearly understood from, now comparison accompanying drawing illustrates the specific embodiment of the present invention.
As it is shown in figure 1, left side is upper end in figure, right side is lower end.The invention provides the cable connecting arrangement of a kind of electrodrill well system, described cable connecting arrangement includes drilling rod and connects unit 10, whole cable connecting arrangement according to the length needs of electrodrill well system, can be connected unit 10 head and the tail by multiple drilling rods and connect to form.Described drilling rod connects unit 10 and includes cable connection joint 1, drilling rod 2, lower cable connection joint 3 and cable 4.Drilling rod 2 therein is traditional jackrod structure, and inside is provided with the passage of hollow.
Described upper cable connection joint 1, described lower cable connection joint 3 are detachably connected on the top and bottom of described drilling rod 2 respectively；The inside of described upper cable connection joint 1, described drilling rod 2 and described lower cable connection joint 3 is provided with the axial passage 5 of up/down perforation, and this axial passage 5 runs through the entirety being made up of described upper cable connection joint 1, described drilling rod 2 and described lower cable connection joint 3.Described cable 4 is located in described axial passage 5, and the upper end of described cable 4 is fixed in the axial passage 5 of described upper cable connection joint 1, and the lower end of described cable 4 is fixed in the axial passage 5 of described lower cable connection joint 3.
Described upper cable connection joint 1 can be mutually butted with described lower cable connection joint 3 and be connected, namely adjacent two drilling rods connect between unit 10, and the lower cable connection joint 3 that a upper drilling rod connects unit 10 can dock on the upper cable connection joint 1 being connected to next drilling rod connection unit 10.Described cable 4 adopts armored cable, and the top and bottom of described cable 4 are fixed with the cable connector that can be mutually inserted respectively；After adjacent two drilling rods connect cable connection joint up and down 1, the 3 docking connection of unit 10, the cable connector that a upper drilling rod connects unit 10 is plugged in the cable connector of next drilling rod connection unit 10 and is conductively connected.
When using brill under this cable connecting arrangement, the lower cable connection joint 3 treating lower drilling rod is slowly inserted seat and is stuck in the upper cable connection joint 1 of drilling rod of well head, transferring after putting in place that slow spinner is until screwing, now cable connector is at a fully engaged, is then turn on whether reliable power supply test cable connects.This cable connecting arrangement adopts cable connection joint 1, lower cable connection joint 3 on the two ends of conventional drill 2 connect respectively, then the two ends of cable 4 are connected on the cable connection joint up and down 1,3 of correspondence, the structure of conventional drill need not be changed, and cabled manner is reliable.
As an embodiment of the invention, the two ends processing of described drilling rod 2 has standard thread button, it is connected with described upper cable connection joint 1 and described lower cable connection joint 3 coaxial threaded respectively, generally cylindrical, described axial passage 5 is the cylindrical channel coaxial with described drilling rod 2, described upper cable connection joint 1 and described lower cable connection joint 3.The upper end of described cable 4 is fixing connects female cable connector 41, and the lower end of described cable 4 is fixing connects service message cable joint 42；Described female cable connector 41 is coaxially fixed in the axial passage 5 of described upper cable connection joint 1；Described service message cable joint 42 is coaxially fixed in the axial passage 5 of described lower cable connection joint 3.
Further, as shown in Figure 2, described upper cable connection joint 1 is cylindrical sleeve, the upper end processing of described upper cable connection joint 1 has taper box thread, lower end processing has taper male thread, and the taper box thread docking that the taper male thread of described upper cable connection joint 1 lower end is processed with described drilling rod 2 upper end is connected.
Further, as shown in Figure 4, to be provided with in axial passage 5 prominent first connects projection 6 for the inwall of described upper cable connection joint 1, and the described first both sides connecting projection 6 can be the arc of the tangent transition of inwall with described axial passage 5.Described first connects projection 6 is provided with the screwed hole for connecting female cable connector 41, and screwed hole, towards the upper end of described upper cable connection joint 1, carries out torquing operations to facilitate.As shown in Figure 6, described female cable connector 41 being integrally formed with installing plate 7, described installing plate 7 is connected by screw on the described first screwed hole connecting projection 6.Described first connects projection 6 is provided with two, and two described first connect projection 6 and are symmetricly set on the described diametric two ends of axial passage 5.After connection, described female cable connector 41 is positioned on the axis of described axial passage 5.
Further, as shown in Figure 3, described lower cable connection joint 3 is also cylindrical sleeve, the upper end processing of described lower cable connection joint 3 has taper box thread, lower end processing has taper male thread, and the taper male thread docking that the taper box thread of described lower cable connection joint 3 upper end is processed with described drilling rod 2 lower end is connected.The lower end of described lower cable connection joint 3 is additionally provided with coaxially around at the guide section 31 outside described service message cable joint 42.Described guide section 31 is cylindrical, and along extending axially downward of lower cable connection joint 3, its upper end connects with the taper male thread of lower cable connection joint 3 lower end, and the external diameter of guide section 31 is less, forms a circle shoulder 32 with taper male thread junction.This guide section 31, coaxially around the outside at described service message cable joint 42, plays the effect of guide-localization when service message cable joint 42 is inserted in adjacent female cable connector 41, makes to be not easy dislocation during grafting.
Further, as it is shown in figure 5, the inwall of described lower cable connection joint 3 to be provided with in axial passage 5 prominent second connects projection 8.Described second both sides connecting projection 8 can be the arc of the tangent transition of inwall with described axial passage 5.Similar to the structure of described female cable connector 41, described service message cable joint 42 is integrally formed with installing plate 7 (referring to Fig. 6)；Described second connects the side being used for connecting described installing plate 7 on projection 8 is provided with groove 81, is provided with screwed hole in the bottom of described groove 81, and described installing plate 7 is embedded in described groove 81 and is connected by screw on the described second screwed hole connecting projection 8；Installing plate 7 can adopt rectangle, and groove 81 is rectangular recess.Carrying out torquing operations for convenience, groove 81 and screwed hole are respectively positioned on the second connection projection 8 towards the side of described lower cable connection joint 3 lower end.
Further, it is additionally provided with cover plate 9 in described lower cable connection joint 3, described cover plate 9 is disc, the central authorities of cover plate 9 are provided with perforation and are enclosed within the outside of described service message cable joint 42, after installing plate 7 is embedded into described groove 81, described installing plate 7 lid is located in described groove 81 by described cover plate 9, and described cover plate 9, described installing plate 7 are connected on the described second screwed hole connecting projection 8 each through screw.Described second connects projection 8 is provided with two, and two described second connect projection 8 and are symmetricly set on the described diametric two ends of axial passage 5.After connection, described service message cable joint 42 is positioned on the axis of described axial passage 5.
In this embodiment, described drilling rod connects unit 10 and is provided with at least two, it is assumed that it is that the first drilling rod connects unit 10 above that adjacent two drilling rods connect between unit 10, below be that the second drilling rod connects unit 10.The described upper cable connection joint 1 that the described lower cable connection joint 3 of the first drilling rod connection unit 10 is connected unit 10 with the second drilling rod is threaded；First drilling rod connects the described service message cable joint 42 of unit 10 and is plugged on described female cable connector 41 of the second drilling rod connection unit 10, the like, described drilling rod connects unit 10 and is sequentially connected with.
Now upper and lower cable connection joint 1,3 is threaded in respectively the two ends of conventional drill 2；Then cable is penetrated in the drilling rod 2 connecting upper and lower cable connection joint 1,3.Installing plate 7 on the service message cable joint 42 of lower cable connection joint 3 side is embedded in the rectangular channel of the second connection projection 8, then presses cover plate 9 tightening screw, service message cable joint 42 is fixed.Installing plate 7 on female cable connector 41 of upper cable connection joint 1 side is fixed on the first connection projection 6, completes a drilling rod and connect the connection of unit 10.The cable connecting arrangement of the present invention adopts cable connection joint 1, lower cable connection joint 3 on the two ends of conventional drill 2 connect respectively, then the two ends of cable are connected on the cable connection joint up and down 3 of correspondence, the structure of conventional drill need not be changed, and cabled manner is reliable.
The foregoing is only the schematic detailed description of the invention of the present invention, be not limited to the scope of the present invention.Any those skilled in the art, equivalent variations done under without departing from the design of the present invention and the premise of principle and amendment, all should belong to the scope of protection of the invention.
Claims (10)
1. the cable connecting arrangement of an electrodrill well system, it is characterised in that described cable connecting arrangement includes drilling rod and connects unit, described drilling rod connects unit and includes cable connection joint, drilling rod, lower cable connection joint and cable；
Described upper cable connection joint, described lower cable connection joint are detachably connected on the top and bottom of described drilling rod respectively；The inside of described upper cable connection joint, described drilling rod and described lower cable connection joint is provided with the axial passage of up/down perforation；Described cable is positioned at described axial passage, and the top and bottom of described cable are separately fixed in described upper cable connection joint and described lower cable connection joint；
Described upper cable connection joint can be mutually butted with described lower cable connection joint and be connected；The top and bottom of described cable are respectively equipped with the first cable connector and the second cable connector that can be mutually inserted.
2. the cable connecting arrangement of electrodrill well system as claimed in claim 1, it is characterized in that, the inwall of described upper cable connection joint is provided with prominent first and connects projection, described first connects projection is provided with screwed hole, being integrally formed with installing plate on described first cable connector, described installing plate is connected by screw on the described first screwed hole connecting projection.
3. the cable connecting arrangement of electrodrill well system as claimed in claim 2, it is characterised in that described first connects projection is provided with two, two described first connect projection and are symmetrical arranged on the cross section of described axial passage.
4. the cable connecting arrangement of electrodrill well system as claimed in claim 3, it is characterized in that, described upper cable connection joint is cylindrical sleeve, the top and bottom of described upper cable connection joint are respectively equipped with taper box thread, taper male thread, and the upper end of described drilling rod is provided with the taper box thread coordinated with described upper cable connection joint.
5. the cable connecting arrangement of the electrodrill well system as described in claim 1 or 4, it is characterised in that the inwall of described lower cable connection joint is provided with prominent second and connects projection, and described second cable connector is integrally formed with installing plate；Described second connects the side being used for connecting described installing plate on projection is provided with groove, is provided with screwed hole in the bottom of described groove, and described installing plate is embedded in described groove and is connected by screw on the described second screwed hole connecting projection.
6. the cable connecting arrangement of electrodrill well system as claimed in claim 5, it is characterized in that, described lower cable connection joint is additionally provided with cover plate, described cover plate is provided with perforation and is enclosed within outside described service message cable joint, described installing plate lid is located in described groove by described cover plate, and described cover plate, described installing plate are connected on the described second screwed hole connecting projection each through screw.
7. the cable connecting arrangement of electrodrill well system as claimed in claim 6, it is characterised in that described second connects projection is provided with two, two described second connect projection and are symmetrical arranged on the cross section of described axial passage.
8. the cable connecting arrangement of electrodrill well system as claimed in claim 7, it is characterized in that, described lower cable connection joint is cylindrical sleeve, the top and bottom of described lower cable connection joint are respectively equipped with taper box thread, taper male thread, and the lower end of described drilling rod is provided with the taper male thread coordinated with described lower cable connection joint；The lower end of described lower cable connection joint is additionally provided with coaxially around at the guide section outside described service message cable joint.
9. the cable connecting arrangement of electrodrill well system as claimed in claim 8, it is characterized in that, described drilling rod is connected with described upper cable connection joint and described lower cable connection joint coaxial threaded respectively, and described axial passage is the cylindrical channel coaxial with described drilling rod, described upper cable connection joint and described lower cable connection joint；Described first cable connector is female cable connector, and described second cable connector is service message cable joint；Described female cable connector is coaxially fixed in described upper cable connection joint；Described service message cable joint is coaxially fixed in described lower cable connection joint.
10. the cable connecting arrangement of electrodrill well system as claimed in claim 1, it is characterized in that, described drilling rod connects unit and is provided with at least two, and the described upper cable connection joint that drilling rod described in the described lower cable connection joint and second of drilling rod connection unit described in first connects unit is threaded；Drilling rod described in first connects described second cable connector of unit and is plugged on described first cable connector of drilling rod connection unit described in second, the like, described drilling rod connects unit and is sequentially connected with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610258472.6A CN105789935A (en) | 2016-04-22 | 2016-04-22 | Cable connection device for electric drill well drilling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610258472.6A CN105789935A (en) | 2016-04-22 | 2016-04-22 | Cable connection device for electric drill well drilling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105789935A true CN105789935A (en) | 2016-07-20 |
Family
ID=56399331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610258472.6A Pending CN105789935A (en) | 2016-04-22 | 2016-04-22 | Cable connection device for electric drill well drilling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105789935A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252972A (en) * | 2016-08-31 | 2016-12-21 | 中国石油天然气集团公司 | Apply the sealing device at electrodrill cable plug |
| CN106505330A (en) * | 2016-12-12 | 2017-03-15 | 云南电网有限责任公司红河供电局 | Quick plug-in conduction wire clamp |
| CN107701120A (en) * | 2017-10-31 | 2018-02-16 | 中国石油天然气集团公司 | The drilling rod of electric bottom hole drilling |
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| CN201057041Y (en) * | 2007-04-16 | 2008-05-07 | 中国石化集团胜利石油管理局钻井工艺研究院 | Lengthened connection device |
| CN201144695Y (en) * | 2007-10-12 | 2008-11-05 | 中国石化集团胜利石油管理局钻井工艺研究院 | Novel signal transmission drill string |
| CN201466660U (en) * | 2009-08-04 | 2010-05-12 | 上海海隆石油管材研究所 | Split type cable connection structure for oil gas exploitation intellect drill string adapter |
| CN202190049U (en) * | 2011-09-15 | 2012-04-11 | 中煤科工集团重庆研究院 | Cable connecting seat |
| CN203288911U (en) * | 2013-06-03 | 2013-11-13 | 中国海洋石油总公司 | Adaptive joint for instrument with drill |
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2016
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201057041Y (en) * | 2007-04-16 | 2008-05-07 | 中国石化集团胜利石油管理局钻井工艺研究院 | Lengthened connection device |
| CN201144695Y (en) * | 2007-10-12 | 2008-11-05 | 中国石化集团胜利石油管理局钻井工艺研究院 | Novel signal transmission drill string |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252972A (en) * | 2016-08-31 | 2016-12-21 | 中国石油天然气集团公司 | Apply the sealing device at electrodrill cable plug |
| CN106252972B (en) * | 2016-08-31 | 2019-04-09 | 中国石油天然气集团有限公司 | Apply the sealing device in electrodrill cable plug |
| CN106505330A (en) * | 2016-12-12 | 2017-03-15 | 云南电网有限责任公司红河供电局 | Quick plug-in conduction wire clamp |
| CN107701120A (en) * | 2017-10-31 | 2018-02-16 | 中国石油天然气集团公司 | The drilling rod of electric bottom hole drilling |
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Application publication date: 20160720 |
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