CN105161942B - Based on conductive fluid medium with brill instrument pipe nipple multichannel arrangements of electric connection - Google Patents

Based on conductive fluid medium with brill instrument pipe nipple multichannel arrangements of electric connection Download PDF

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Publication number
CN105161942B
CN105161942B CN201510438800.6A CN201510438800A CN105161942B CN 105161942 B CN105161942 B CN 105161942B CN 201510438800 A CN201510438800 A CN 201510438800A CN 105161942 B CN105161942 B CN 105161942B
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China
Prior art keywords
pipe nipple
electric connection
conduction liquid
annular groove
instrument pipe
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CN105161942A (en
Inventor
王文
鲍必营
崔学广
袁科杰
姚金志
万亚旗
王伟东
周建立
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Hangzhou Dianzi University
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Hangzhou Dianzi University
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Abstract

The invention discloses it is a kind of based on conductive fluid medium with bore instrument pipe nipple multichannel arrangements of electric connection.The multichannel electrical connection of instrument pipe nipple is difficult to, the way of realization complex structure of annular conductive rings.Fittings body of the invention offers n bar conduction liquid passages;The entrance of every conduction liquid passage and outlet both sides are equipped with annular seal groove;Upper instrument pipe nipple is connected with fittings body threaded upper ends, and is connected with the entrance of n bar conduction liquid passages by electrically connecting pipeline and n upper annular groove on n bars;Upper electrical connection pipeline has been connected through a screw thread single electric connection with the interface of upper annular groove;Lower instrument pipe nipple is threadedly coupled with fittings body lower end, and by electrically connecting the outlet of pipeline and n lower annular groove and n bar conduction liquid passages under n bars;Lower electrical connection pipeline has been connected through a screw thread single electric connection with the interface of lower annular groove.The present invention fills conductive fluid medium come the Rotation for solving to be electrically connected between with instrument pipe nipple is bored in conduction liquid passage.

Description

Based on conductive fluid medium with brill instrument pipe nipple multichannel arrangements of electric connection
Technical field
The present invention relates to the interconnection technique of downhole drill instrument, more particularly to it is a kind of based on conductive fluid medium with boring instrument Device pipe nipple multichannel arrangements of electric connection.
Background technology
Measurement while-drilling instrument has important researching value and is widely applied prospect, general structure in field of oil drilling The instrument pipe nipple of some different well logging functions is generally comprised, each instrument pipe nipple is serially connected, and realizes the survey of measurement while-drilling instrument Amount demand.When instrument pipe nipple is connected, thread connecting mode generally is used to ensure its sealing and rigidity, and in instrument pipe nipple Portion is often disposed with the electric connection structure of contact pin type.If being therefore connected through a screw thread two pipe nipples, then needed in actual installation Generation relative rotary motion, this will cause the destruction of electric connection structure.Therefore while mechanical connection between guarantee instrument pipe nipple Realize that reliable electrical connection is one of technology of key in measurement while-drilling instrument.
It can be seen from the document consulted, solving to rotate the conventional method of connectivity problem at present both at home and abroad is:In upper and lower instrument Concentric conducting ring, pipe nipple inside processing arrangement wire duct, in the rotation of upper and lower instrument pipe nipple are installed on the end face of pipe nipple connection Conducting ring end face is brought into close contact realization electrical connection when turning connection, is carried out by the O-ring seals for being arranged on both sides inside and outside conducting ring Radial seal.This method is due to the restricted problem by downhole instrument radial space, it is difficult to realize complicated multichannel electrical connection. Additionally, devise a kind of " with instrument short section connecting structure is bored " in patent CN201486548U, by male and female plug along axle The form that line is provided with several annular conductive rings solves rotatable connection and many circuit connectivity problems, but component is more, and structure is more It is complicated.
The content of the invention
The purpose of the present invention is directed to the deficiencies in the prior art, there is provided a kind of short with instrument is bored based on conductive fluid medium Section multichannel arrangements of electric connection, the rotation that conductive fluid medium is filled in conduction liquid passage to solve to be electrically connected between with instrument pipe nipple is bored Problem.
The technical solution adopted in the present invention is:
The present invention includes fittings body, upper instrument pipe nipple, lower instrument pipe nipple and single conductive plug;Described fittings body is opened up There are n bar conduction liquid passages and n liquid injection hole, n >=3;Every conduction liquid passage is connected with the inner of a corresponding liquid injection hole;It is described Conduction liquid passage in be marked with conduction liquid;The entrance and exit of conduction liquid passage sets up separately at fittings body two ends;Every conduction liquid leads to The entrance in road and outlet both sides are equipped with annular seal groove;Sealing ring is provided with described annular seal groove.
Described upper instrument pipe nipple includes upper pressure-bearing shell and upper circuit framework;The inwall of the upper circuit framework is nested with Fittings body upper end, and compress the sealing ring in correspondence annular seal groove;Described upper pressure-bearing shell is nested with outside upper circuit framework, And be connected through a screw thread with the upper end of fittings body;Described upper circuit framework offers pipeline is electrically connected on n bars vertically, and interior Wall offers n upper annular groove;The top of annular groove connects with the entrance of a corresponding conduction liquid passage on each, bottom Pipeline connection is electrically connected with one;Described upper electrical connection pipeline has been connected through a screw thread list with the interface of upper annular groove Core electric connection.
Described lower instrument pipe nipple includes lower pressure-bearing shell and lower circuit framework;The inwall of the lower circuit framework is nested with Fittings body lower end, and compress the sealing ring in correspondence annular seal groove;Described lower pressure-bearing shell is nested with outside lower circuit framework, And be connected through a screw thread with the lower end of fittings body;Described lower circuit framework electrically connects pipeline under offering n bars vertically, and interior Wall offers n lower annular groove;The top of each lower annular groove and the outlet of a corresponding conduction liquid passage, bottom Pipeline connection is electrically connected with one;Described lower electrical connection pipeline has been connected through a screw thread list with the interface of lower annular groove Core electric connection.
Described single electric connection is welded with wire, and the conductive core of single electric connection is by upper annular groove or lower annular groove Bottom insertion, and without departing from upper annular groove or the top of lower annular groove.
The outer end of the liquid injection hole is provided with sealing-plug.
The entrance of the conduction liquid passage or the center line of outlet are logical along conduction liquid with the center line of adjacent annular seal groove The distance of road axial direction is 6~8mm.
Described conduction liquid vias inner walls are coated with insulating barrier.
The junction portion of the single electric connection is insulating materials.
Described single electric connection is equipped with sealing ring between the inwall of pipeline and lower electrical connection pipeline is electrically connected with.
Described conduction liquid is sodium chloride solution.
The beneficial effects of the invention are as follows:
1st, be used for for conductive fluid medium to electrically connect by the present invention, and it is recessed that the conductive core of single electric connection is arranged on ring shaped conductive liquid In groove, how the radial position for no matter going up instrument pipe nipple and lower instrument pipe nipple changes, and can be transferred through what is be full of in conduction liquid passage Conduction liquid realizes the electrical connection between the upper and lower pipe nipple of instrument.
2nd, the present invention can be set a plurality of electrical connection number, wherein increasing for electrical connection number only can increase electric connection structure Axial length without increasing its radial direction volume, so as to solve the problems, such as electrical connection exist volume and structure limitation.
3rd, simple structure of the present invention, connection is quick, and electrical connection can be synchronously completed while connection screw thread.
Brief description of the drawings
Fig. 1 is longitudinal section view of the invention;
Fig. 2 is the A-A sectional views of Fig. 1;
Fig. 3 is the B-B sectional views of Fig. 1;
Fig. 4 is the rigging position partial enlarged drawing of single conductive plug in the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment the invention will be further described.
As shown in Figure 1,2 and 3, based on conductive fluid medium with brill instrument pipe nipple multichannel arrangements of electric connection, including joint Body 1, upper instrument pipe nipple 2, lower instrument pipe nipple 3 and single conductive plug 4.
Fittings body 1 offers three conduction liquid passages 12 and three liquid injection holes 14;Every conduction liquid passage with corresponding one The inner connection of liquid injection hole 14, the outer end of liquid injection hole 14 is provided with sealing-plug;The entrance of every conduction liquid passage and outlet both sides are equal Annular seal groove is provided with, and the entrance of conduction liquid passage or the center line of outlet are conductive with the center line edge of adjacent annular seal groove The distance of liquid passage axial direction is 6~8mm;The first sealing ring 13 is provided with annular seal groove, it is ensured that different conduction liquid interchannels, on Sealing against each other between instrument pipe nipple 2 and fittings body 1 and between fittings body 1 and lower instrument pipe nipple 3.
Upper instrument pipe nipple 2 includes upper pressure-bearing shell 21 and upper circuit framework 23;The inwall of upper circuit framework 23 is nested with and is connecing Head body 1 upper end, and compress the sealing ring in correspondence annular seal groove;Upper pressure-bearing shell 21 is nested with outside upper circuit framework 23, and It is connected by screw thread pair 11 with the upper end of fittings body 1;Upper circuit framework 23 offers three upper electrical connection pipelines 22 vertically, and Inwall offers three upper annular grooves 24;The entrance of the top of annular groove 24 and a corresponding conduction liquid passage 12 on each Connection, bottom connects with a upper electrical connection pipeline 22;Upper electrical connection pipeline 22 passes through spiral shell with the interface of upper annular groove 24 Line is connected with single electric connection 4.
Lower instrument pipe nipple 3 includes lower pressure-bearing shell 31 and lower circuit framework 33;The inwall of lower circuit framework 33 is nested with and is connecing Head body 1 lower end, and compress the sealing ring in correspondence annular seal groove;Lower pressure-bearing shell 31 is nested with outside lower circuit framework 33, and It is connected by screw thread pair 11 with the lower end of fittings body 1;Lower circuit framework 33 electrically connects pipeline 32 under offering three vertically, and Inwall offers three lower annular grooves 34;The top of each lower annular groove 34 and the outlet of a corresponding conduction liquid passage 12 Connection, bottom connects with electrical connection pipeline 32 under;Lower electrical connection pipeline 32 passes through spiral shell with the interface of lower annular groove 34 Line is connected with single electric connection 4.
As shown in figure 4, single electric connection 4 is welded with wire 42, the conductive core of single electric connection 4 by upper annular groove 24 or The bottom insertion of lower annular groove 34, and without departing from upper annular groove 24 or the top of lower annular groove 34, to ensure that it can soak In conduction liquid in conduction liquid passage 12.Single electric connection 4 electrically connects the inwall of pipeline 22 and lower electrical connection pipeline 32 with Between be equipped with the second sealing ring 41, it is to avoid conduction liquid flow on electrically connect pipeline 22 or it is lower electrical connection pipeline 32 in.
This be based on conductive fluid medium with bore instrument pipe nipple multichannel arrangements of electric connection installation and operation principle:
While upper instrument pipe nipple 2 and lower instrument pipe nipple 3 are threadedly coupled with fittings body 1, synchronously complete and be above electrically connected adapter Communicating passage between road 22, lower electrical connection pipeline 32 and conduction liquid passage 12, then by liquid injection hole 14 to each conduction liquid Inject conduction liquid in pipeline, such as sodium chloride solution, seal liquid injection hole 14 after filling.No matter go up instrument pipe nipple 2 and lower instrument is short How the radial position of section 3 changes, and can realize the electrical communication between upper and lower instrument pipe nipple.Conduction liquid need to be under high temperature, high pressure Still there is good electric conductivity.The perfusion of conduction liquid can also use other manner, such as immersion liquid mode, will the leaching of each several part part Installed in conduction liquid.

Claims (6)

1. based on conductive fluid medium with boring instrument pipe nipple multichannel arrangements of electric connection, including fittings body, upper instrument pipe nipple, lower instrument Device pipe nipple and single electric connection, it is characterised in that:Described fittings body offers n bar conduction liquid passages and n liquid injection hole, and n >= 3;Every conduction liquid passage is connected with the inner of a corresponding liquid injection hole;Conduction liquid is marked with described conduction liquid passage;It is conductive The entrance and exit of liquid passage sets up separately at fittings body two ends;It is close that the entrance of every conduction liquid passage and outlet both sides are equipped with annular Sealing groove;Sealing ring is provided with described annular seal groove;
Described upper instrument pipe nipple includes upper pressure-bearing shell and upper circuit framework;The inwall of the upper circuit framework is nested with joint Body upper end, and compress the sealing ring in correspondence annular seal groove;Described upper pressure-bearing shell is nested with outside upper circuit framework, and with The upper end of fittings body is connected through a screw thread;Described upper circuit framework is offered pipeline is electrically connected on n bars vertically, and inwall is opened It is provided with n upper annular groove;The top of annular groove connects with the entrance of a corresponding conduction liquid passage on each, bottom and Pipeline connection is electrically connected on bar;Described upper electrical connection pipeline has been connected through a screw thread single electricity with the interface of upper annular groove Joint;
Described lower instrument pipe nipple includes lower pressure-bearing shell and lower circuit framework;The inwall of the lower circuit framework is nested with joint Body lower end, and compress the sealing ring in correspondence annular seal groove;Described lower pressure-bearing shell is nested with outside lower circuit framework, and with The lower end of fittings body is connected through a screw thread;Described lower circuit framework electrically connects pipeline under offering n bars vertically, and inwall is opened It is provided with n lower annular groove;The top of each lower annular groove and the outlet of a corresponding conduction liquid passage, bottom and Pipeline connection is electrically connected under bar;Described lower electrical connection pipeline has been connected through a screw thread single electricity with the interface of lower annular groove Joint;
Described single electric connection is welded with wire, and the conductive core of single electric connection is by upper annular groove or the bottom of lower annular groove Portion is embedded in, and without departing from upper annular groove or the top of lower annular groove.
2. it is according to claim 1 based on conductive fluid medium with bore instrument pipe nipple multichannel arrangements of electric connection, its feature It is:The outer end of the liquid injection hole is provided with sealing-plug.
3. it is according to claim 1 based on conductive fluid medium with bore instrument pipe nipple multichannel arrangements of electric connection, its feature It is:The center line of the entrance of the conduction liquid passage or the center line of outlet and adjacent annular seal groove is along conduction liquid passage axle To distance be 6~8mm.
4. it is according to claim 1 based on conductive fluid medium with bore instrument pipe nipple multichannel arrangements of electric connection, its feature It is:The junction portion of the single electric connection is insulating materials.
5. it is according to claim 1 based on conductive fluid medium with bore instrument pipe nipple multichannel arrangements of electric connection, its feature It is:Described single electric connection is equipped with sealing ring between the inwall of pipeline and lower electrical connection pipeline is electrically connected with.
6. it is according to claim 1 based on conductive fluid medium with bore instrument pipe nipple multichannel arrangements of electric connection, its feature It is:Described conduction liquid is sodium chloride solution.
CN201510438800.6A 2015-07-23 2015-07-23 Based on conductive fluid medium with brill instrument pipe nipple multichannel arrangements of electric connection Active CN105161942B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105937679B (en) * 2016-05-26 2017-11-24 杭州电子科技大学 The electric and fluid mixed connection joint of downhole drill instrument pump drainage egf block

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101291015A (en) * 2008-06-11 2008-10-22 中国石油集团钻井工程技术研究院 Electromagnetic emitting antenna along with drill, down-hole data communication system and method
CN202178482U (en) * 2011-06-17 2012-03-28 东北石油大学 Rotary electric interface for measurement while-drilling instrument
CN204793531U (en) * 2015-07-23 2015-11-18 杭州电子科技大学 Along with boring instrument nipple joint multichannel electrical connector based on conducting solution body medium

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101291015A (en) * 2008-06-11 2008-10-22 中国石油集团钻井工程技术研究院 Electromagnetic emitting antenna along with drill, down-hole data communication system and method
CN202178482U (en) * 2011-06-17 2012-03-28 东北石油大学 Rotary electric interface for measurement while-drilling instrument
CN204793531U (en) * 2015-07-23 2015-11-18 杭州电子科技大学 Along with boring instrument nipple joint multichannel electrical connector based on conducting solution body medium

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