a releasable connector

A technology of connectors and connecting sleeves, which is applied in the direction of drilling pipes, casings, and measurements, can solve the problems of increasing costs, damaging cables, and increasing the difficulty and risk of salvage of stuck instruments, so as to achieve low salvage costs and low salvage risks Effect

Active Publication Date: 2019-09-03
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this mode of salvage operation is that the cable is damaged and the cost is increased; at the same time, because there is a dropped cable in the well, it also increases the difficulty and risk of salvaging the stuck instrument

Method used

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Examples

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Embodiment Construction

[0019] The present invention is described in further detail below in conjunction with accompanying drawing:

[0020] refer to figure 1 , the releasable connector of the present invention includes a tension rod 12, a fishing head 5, a connecting sleeve 4, a first connector 13, an upper transition joint 2, an upper joint 1, a lower joint 9, a second joint 7 and a wire 10 The tension rod 12 and the fishing head 5 are located in the connecting sleeve 4, the first connector 13 is sleeved in one end of the upper joint 1, one end of the upper transition joint 2 is sleeved on the outer wall of the other end of the upper joint 1, and the connecting sleeve 4 One end of the connecting sleeve 4 is sleeved on the outer wall of the upper transition joint 2, the other end of the connecting sleeve 4 is sleeved on the outer wall of the fishing head 5, one end of the tension rod 12 is connected with the upper transition joint 2, and the other end of the tension rod 12 is connected with the fish...

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Abstract

The invention discloses a releasable connector. A tension rod and a salvage head are located in a connecting sleeve. A first connecting inserting part is sleeved with one end of an upper joint. The outer wall of the other end of the upper joint is sleeved with one end of an upper joint. The outer wall of an upper transition joint is sleeved with one end of the connecting sleeve. The outer wall ofthe salvage head is sleeved with the other end of the connecting sleeve. The upper transition joint is connected with one end of the tension rod. The other end of the tension rod is connected with oneend of the salvage head. The outer wall of one end of a lower joint is sleeved with the other end of the salvage head. A second connecting inserting part is inserted into the other end of the lower joint. The first connector is connected with one end of a guide wire. The other end of the guide wire is connected with the second connector after penetrating out of the upper joint, penetrating through the upper transition joint, the connecting sleeve and the salvage head, and then being inserted into the lower joint. According to the releasable connector, the problem that a cable is damaged caused by salvage operation is avoided, and salvage difficulty, salvage risk and salvage cost are relatively low.

Description

technical field [0001] The invention belongs to the field of petroleum logging and relates to a releasable connector. Background technique [0002] At present, when the logging (or testing) instrument is stuck during production logging construction, and the state of the instrument is still unable to get rid of the stuck state after various unblocking actions, the usual method is to pull off the cable, and then carry out the instrument. Salvage operation to remove the instrument from the well. The disadvantage of this mode of salvage operation is that the cable is damaged and the cost is increased; at the same time, because there is a dropped cable in the well, it also increases the difficulty and risk of salvaging the stuck instrument. Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art, and provide a releasable connector, which can avoid damage to cables due to salvage operations, and ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B17/02E21B47/00E21B31/12
Inventor 张春林刘春斌方旭红范林王志兴叶磊傅强王红彬王鹏刘国权王献军李圣涛严磊孙小科孟庆夺贾培民薛建民仲万象庞鹏飞李岩艳
Owner BC P INC CHINA NAT PETROLEUM CORP
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