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Cable connector manufacturing method for blasting operation

A technology for cable joints and production methods, which is applied to circuits, connections, electrical components, etc., can solve problems such as burnt cable caps, cables become brittle, and tensile strength is reduced, so as to avoid accidents and reduce costs.

Active Publication Date: 2013-08-21
CHINA NAT PETROLEUM CORP CHUANQING DRILLING ENG CO LTD CHANGQING DOWNHOLE TECH CO
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. A high temperature of about 3000°C will be generated at the moment of blasting, which will burn the cable rope cap and cause the cable rope cap to be scrapped;
[0007] 2. The instantaneous high temperature will burn the nearby cables at the same time, making some cables brittle, reducing the tensile strength, unable to bear the weight of the cable cap, causing the cable cap to fall into the well, causing an accident of falling objects in the well

Method used

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  • Cable connector manufacturing method for blasting operation

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Embodiment Construction

[0031] The invention relates to blasting operations in the field of oil and gas field exploration and development, and relates to a manufacturing method for special cable joints for blasting operations.

[0032] see figure 1 , the specific steps of a method for making a cable joint for blasting operations involved in the present invention are:

[0033] 1] Carry out a performance check on the cables to make sure that the on-off and insulation of the cables to be used meet the industrial requirements;

[0034] 2] Loosen the outer armor of the cable, disassemble the strands, and separate the forward winding to separate the outer armor from the cable; that is, loosen the outer armor of the cable and divide the outer armor into two strands in sequence Disassemble from the inner armor, and then combine the disassembled outer armor to separate the outer armor from the inner armor;

[0035] 3] Use a separate outer armor to wrap a circle at the root to form a load-bearing ring, and r...

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Abstract

The invention relates to a cable connector manufacturing method for a blasting operation. The method comprises the following steps: (1) carrying out performance checking on cables, (2) sequentially carrying out slackening, splitting detaching and positive winding separating on the outer layer armors of the cables, separating the outer layer armors from the inner layer armors, (3) winding the separated outer layer armors into a circle on root portions of the outer layer armors to form load-bearing rings, using residual outer layer armors to carry out negative winding and return to the cables, (4) carrying out joint winding by using thin iron wires and black tape in sequence after winding is finished, (5) carrying out slackening, splitting detaching and positive winding separating on the inner layer armors of the cables, separating the inner layer armors from the cables, (6) using the separated inner layer armors to wind the load-bearing rings, using the residual inner layer armors to carry out negative winding and return to the cables, (7) carrying out joint winding by using thin iron wires and black tape in sequence after winding is finished, then carrying out reshaping on the load-bearing rings, and (8) carrying out the process of performance checking on cable cores to confirm whether the cable cores meet industrial requirements. The cable connector manufacturing method for the blasting operation achieves the purposes of connection of the cables and an ignition device, load bearing and cable core sealing.

Description

technical field [0001] The invention relates to a method for making a cable joint used in blasting operations. Background technique [0002] In the process of oil and gas exploration and development, blasting such as high-energy gas fracturing is required for various working conditions such as small-scale reconstruction of bottom water oil cap formations, injection fracturing of water injection wells, and pretreatment before hydraulic fracturing of tight formations. class work. When carrying out blasting operations such as cable transmission of high-energy gas fracturing, the ignition device of the fracturing bomb and the cable need to be connected with a cable rope cap. The cable rope cap plays the role of bearing and sealing. The load-bearing is mainly the weight of the fracturing bomb, and the sealing object is the core wire of the cable and the core wire of the ignition device. [0003] In the use of traditional cable transmission blasting operations, a connection mod...

Claims

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Application Information

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IPC IPC(8): H01R43/28
Inventor 畅毅刘建芝刘振辉高红平宁治军田玉琛熊朝娣张蔚花
Owner CHINA NAT PETROLEUM CORP CHUANQING DRILLING ENG CO LTD CHANGQING DOWNHOLE TECH CO
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