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A structure and connection method of acoustic wave inner routing while drilling with axial compensation function

A technology of axial compensation and internal wiring, which is applied in the direction of connection, parts of the connection device, contact parts, etc., can solve problems such as inability to disassemble, high risk, and unbearable use pressure

Active Publication Date: 2018-07-31
INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, because the instrument is subjected to high temperature and high pressure environment at the bottom of the well, this requires high welding technology, and it is generally difficult to meet the sealing requirements of high temperature and high pressure. At the same time, it has high requirements for welding technology and cannot be disassembled later.
Welding is more difficult to withstand the working pressure of 140MPa, and the risk is higher

Method used

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  • A structure and connection method of acoustic wave inner routing while drilling with axial compensation function

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 As shown, an internal routing structure of sonic while drilling with axial compensation function includes circuit frame connector-1, first sealing ring 2-1, multi-core slip ring connector socket 3, and multi-core slip ring connector pin 4. Butt plug protection connector 5, second sealing ring 2-2, inner wiring rod 6, third sealing ring 2-3, circuit skeleton connector 2 7, wave spring 8, pin fixing sleeve 9, socket fixing Disk 10.

[0035] One end of the circuit skeleton connector 7 is connected with the receiving circuit skeleton, and one end is locked with the inner wiring rod 6 through a threaded connection, and is sealed by the third sealing ring 2-3. The second circuit skeleton joint 7 leads the mud from the inside of the receiving circuit skeleton to the outside of the inner wiring rod through the middle "herringbone"-shaped diversion structure. The other end of the inner wire rod 6 and the mating sealing joint 5 are locked by a threaded connection,...

Embodiment 2

[0041] This embodiment is basically the same as Embodiment 1, except that one end of the circuit skeleton connector 1 is connected to the receiving circuit skeleton, and one end of the circuit skeleton connector 7 is connected to the transmitting circuit skeleton. The other descriptions about transmission and reception are adjusted accordingly.

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Abstract

The invention belongs to the field of measurement while drilling and particularly relates to an acoustic wave while drilling internal wiring structure with an axial compensation function and a connection method thereof. The internal wiring structure comprises a circuit skeleton joint I, a multi-core slip ring connector, a mutual insertion protection joint, an internal wiring rod and a circuit skeleton joint II. The first end of the circuit skeleton joint I and the first end of the circuit skeleton joint II are mechanically connected with an electronic warehouse of a circuit skeleton, and the power supply and the synchronous signal line of the circuit skeleton are introduced inside the circuit skeleton joint I and the circuit skeleton joint II. The mutual insertion protection joint connects the second end of the circuit skeleton joint I and the first end of the internal wiring rod, and the second end of the internal wiring rod is connected with the second end of the circuit skeleton joint II. The emission and reception internal power supplies and the synchronous signal lines are electrically connected with the multi-core slip ring connector socket and the multi-core slip ring connector pin. The multi-core slip ring connector socket is electrically connected with the multi-core slip ring connector pin. The electrical connection of the emission circuit and the reception circuit is achieved through the multi-core slip ring connector pin and the multi-core slip ring connector socket.

Description

Technical field [0001] The invention mainly belongs to the field of measurement while drilling, and in particular relates to a wire-while-drilling acoustic wave internal wiring structure and a connection method with an axial compensation function. Background technique [0002] With the continuous expansion of oil and gas field drilling scale and the development of science and technology. Especially the rapid development of logging while drilling technology urgently needs the current advanced science and technology to play an important role in oil and gas field exploitation. Azimuth sonic logging while drilling technology is one of the methods of logging while drilling technology. Sonic logging while drilling realizes sonic logging while drilling, which can effectively detect the lithology, physical properties and reservoir parameters of the borehole formation. The longitudinal and transverse wave velocities of the formation are obtained by the acoustic logging while drilling to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R13/17H01R13/533H01R13/52E21B47/0224
CPCE21B47/0224H01R13/17H01R13/5205H01R13/533
Inventor 郑健底青云陈文轩张文秀孙云涛杨永友
Owner INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI