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Composite bridge plug carbon fiber center pipe manufacturing method

A center tube and carbon fiber technology, which is applied in the field of carbon fiber center tube manufacturing for composite bridge plugs, can solve problems such as difficult reverse drainage and restriction of fracturing progress, and achieve improved axial tensile resistance, radial and axial tensile resistance, and improved The effect of radial tension

Inactive Publication Date: 2018-11-16
JILIN XUFENG LASER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to propose a method for manufacturing a composite bridge plug carbon fiber central tube, which solves the problems existing in the prior art that the traditional metal bridge plug is difficult to reverse after milling and restricts the progress of fracturing

Method used

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  • Composite bridge plug carbon fiber center pipe manufacturing method
  • Composite bridge plug carbon fiber center pipe manufacturing method
  • Composite bridge plug carbon fiber center pipe manufacturing method

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Embodiment Construction

[0041] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0042] See attached figure 1 - attached Figure 4 , a method for manufacturing a composite bridge plug carbon fiber center pipe of the present invention comprises the following steps:

[0043] Step 1: Select a carbon fiber composite material tube with an outer diameter of 48mm as the base part, and the tube length is 1400mm;

[0044] Step 2: Carry out 9 circumferential windings of carbon fiber tow within the middle length of 1200 mm on the base part, and the number of winding layers is 10 layers to form the first circumferential winding layer 6;

[0045] Step 3: Carry out oblique winding of carbon fiber tow 9 on the first circumferential winding layer 6 formed in step 2, and the number of winding layers is 10 layers to form the first oblique winding layer 7;

[0046] Step 4: On the first oblique winding layer 7 formed in step 3, carbon fiber tow 9 is ...

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Abstract

The invention discloses a composite bridge plug carbon fiber center pipe manufacturing method, belongs to the technical field of underground petroleum fracturing tools, and solves the problem of difficult reverse discharging after milling of a traditional metal bridge plug in the prior art. The composite bridge plug carbon fiber center pipe manufacturing method comprises the following steps: the peripheral winding, the inclined winding and the snakelike reciprocating axial winding of carbon fiber wire bundles are circularly performed in middle of a carbon fiber composite material pipe with anouter diameter of 48 mm in a length range of 1200 mm until the winding diameter reaches 110 mm; the snakelike reciprocating axial winding of the carbon fiber wire bundles is performed at the two endsof a basal body part; the peripheral winding, the inclined winding and the snakelike reciprocating axial winding of the carbon fiber wire bundles are circularly performed on the basal body part near one end part in a range of 250 mm until the diameter reaches 135 mm; the wound basal body part is put in a mold; the mold is closed and pressed for curing formation to form a cured body; and the curedbody is machined to obtain a carbon fiber composite material center pipe.

Description

technical field [0001] The invention belongs to the technical field of oil well fracturing tools, and in particular relates to a method for manufacturing a composite bridge plug carbon fiber center pipe. Background technique [0002] In the field of petroleum, fracturing refers to a method that uses hydraulic action to form cracks in oil and gas layers during the process of oil or gas recovery, also known as hydraulic fracturing. Fracturing is to artificially create fractures in the formation, improve the flow environment of oil underground, increase the production of oil wells, and play an important role in improving the flow conditions at the bottom of oil wells, slowing down interlayers and improving the production status of oil layers. [0003] After the production of oil wells reaches a certain stage, the production capacity and permeability decrease. In order to enhance the oil drainage capacity and increase the production of oil wells, people invented fracturing techn...

Claims

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Application Information

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IPC IPC(8): B29C63/24B29L23/00
CPCB29C63/24B29L2023/22
Inventor 尚晓峰尚进
Owner JILIN XUFENG LASER TECH
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