Elastic alignment pipe component for perforation of oil and gas wells

A technology of oil and gas wells and elastic parts, applied in the field of alignment pipes, can solve the problems of poor control of system cumulative errors, achieve good alignment, ensure alignment and righting effects, and ensure smooth explosion transmission

Inactive Publication Date: 2012-05-02
GANSU RES INSTION OF CHEM IND GRICI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an elastic alignment tube assembly for oil and gas well perforation to solve the problem that the existing alignment tubes mostly use hard connections and the system cumulative error is not easy to control during the actual assembly process

Method used

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  • Elastic alignment pipe component for perforation of oil and gas wells
  • Elastic alignment pipe component for perforation of oil and gas wells
  • Elastic alignment pipe component for perforation of oil and gas wells

Examples

Experimental program
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Effect test

Embodiment Construction

[0025] The following examples further illustrate the invention, but do not limit it in any way.

[0026] An elastic alignment tube assembly for oil and gas well perforation is formed by inserting a first alignment tube 7 and a second alignment tube 8, and the inner diameters of the first alignment tube 7 and the second alignment tube 8 are the same , the first alignment tube 7 includes a first alignment tube seat 73 and an alignment tube joint 5, the second alignment tube 8 includes a second alignment tube seat 83 and an alignment tube plug 6, and the pair The alignment pipe plug 6 is inserted into the alignment pipe joint 5, the first alignment pipe seat 73 and the alignment pipe joint 5 are connected by the elastic member 4, and the second alignment pipe seat 83 and the alignment pipe plug 6 are connected by the elastic piece 4 is connected.

[0027] The nozzle of the alignment pipe joint 5 is in the shape of a bell mouth.

[0028] The end of the alignment pipe plug 6 is t...

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PUM

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Abstract

The invention discloses an elastic alignment pipe component for the perforation of oil and gas wells, thus solving the problem of the existing hardwired alignment pipe that in the actual assembly process, the control of the accumulative error of the system is difficult. The elastic alignment pipe component is formed by splicing a first alignment pipe and a second alignment pipe, the inner cavity diameters of the first alignment pipe and the second alignment pipe are the same, the first alignment pipe comprises a first alignment pipe seat and an alignment pipe joint; and the second alignment pipe comprises a second alignment pipe seat and an alignment pipe plug, the alignment pipe plug is inserted in the alignment pipe joint, the first alignment pipe seat is connected with the alignment pipe joint through an elastic part, and the second alignment pipe seat is connected with the alignment pipe plug through another elastic part. As the alignment pipes are guided mutually and connected in a matched mode, the field assembly of the alignment pipes is particularly easy and the destructive effect of top extrusion can not appear. The phenomena that irregular nested sediments are formed in the pipe cavity and the gun barrel is blocked can be avoided and reduced after operations.

Description

technical field [0001] The invention relates to an alignment pipe in an oil and gas well perforator, in particular to an elastic alignment pipe assembly for oil and gas well perforation. Background technique [0002] Oil and gas well perforation is an important completion measure in the oil and gas industry. Whether it is conventional perforation, horizontal well perforation, compound perforation, or full-bore perforation, the alignment pipe in the perforator is An important component that cannot be ignored. If the alignment tube is not used to restrain the centered limit perforation and blasting fire workpiece, the perforating gun string will be dislocated and held back when the perforating gun string is assembled and connected to the internal fire workpiece in sequence, which will cause explosion rejection or anti-explosion phenomenon during the detonation process , causing accidents; if a hard connection is used, the gap is too large to reach the pipeline effect, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/1185E21B43/119
Inventor 杨新锋梁锐李森茂孔凡鹏安恩向马晓亚
Owner GANSU RES INSTION OF CHEM IND GRICI
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