A pressure-balanced self-aligning electric drill pipe

A balanced electric drill pipe technology, which is applied to drill pipes, drill pipes, and earthwork drilling and mining, can solve the problems of large electrical joints, low reliability, and low transmission efficiency of electric drill pipes, so as to avoid unbalanced load and facilitate maintenance and replacement, the effect of improving reliability and power transmission efficiency

Active Publication Date: 2022-05-24
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Purpose of the present invention: a pressure-balanced self-aligning electric drill rod proposed in order to solve the problems of low electric transmission efficiency, low reliability and large size of electric joints of electric drill rods caused by vibration, high voltage and pollution of conductive elements

Method used

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  • A pressure-balanced self-aligning electric drill pipe
  • A pressure-balanced self-aligning electric drill pipe
  • A pressure-balanced self-aligning electric drill pipe

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Embodiment Construction

[0019] The present invention is not limited by the following examples, and specific embodiments can be determined according to the technical solutions and actual conditions of the present invention. The present invention will be described below with reference to the accompanying drawings.

[0020] like figure 1 As shown, a pressure-balanced self-aligning electric drill pipe includes a drill pipe 8, a short pin section 4, a pin assembly 3, a short socket section 9, a socket assembly 10, a screw 1, a support frame 2, and a conductive ring assembly 5 and an insulated cable assembly, characterized in that: the socket assembly 10 includes a conductive device, a pressure balance device, an elastic positioning sleeve 23 and a positioning ring 21; the elastic positioning sleeve 23 is sleeved outside the conductive device; the pin assembly 3 It includes a pin housing 26, a pin insulation layer 27, an outer pin 28 and an inner pin 29; the conductive ring assembly 5 includes a first con...

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Abstract

The invention relates to a pressure-balanced self-aligning electric drill pipe used in the fields of oil and gas drilling, coal seam mining and directional crossing of pipelines. The technical solution is: the pin pup is installed at one end of the drill pipe, the socket pup is installed at the other end of the drill pipe, the pin assembly and the socket assembly are respectively fixed on the pin pup and the socket pup through screws and support frames ;Insulated cables and conductive rings are installed on the drill pipe, pin nipples and socket nipples, and the pin assembly, insulated cable assembly, conductive ring assembly and socket assembly are connected in sequence to form two independent current paths; multiple electric drills When the rods are connected end to end through threads, the downhole conductive path is realized, and the power transmission for the downhole drilling tool and the signal transmission to the ground are realized. The invention can realize the functions of automatic centering, pressure balance and automatic cleaning, and is convenient for maintenance and low in application cost.

Description

technical field [0001] The invention relates to a pressure-balanced self-aligning electric drill pipe used in the fields of oil and gas drilling, coal seam mining and pipeline directional crossing. Background technique [0002] Modern drilling technology is developing in the direction of informatization, intelligence and automation, and various electric drill pipes that can transmit strong electricity and signals have appeared one after another. Drilling with electric drill pipes often faces problems such as vibration, high pressure and surface contamination of conductive components. Vibration in the drilling process can easily cause eccentric load on the conductive elements of the electric drill pipe, resulting in premature failure of the conductive elements, low electrical transmission efficiency and low reliability; it is usually necessary to increase the size of the electrical joint parts to meet the mechanical properties of the electrical joint in a high-voltage environ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B17/02H01R13/02
CPCE21B17/028H01R13/02
Inventor 肖仕红何先友张靖柯周士超刘仕华岳琳琳
Owner SOUTHWEST PETROLEUM UNIV
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