Formula of eccentric wear-resistant oil pipe and production process

A production process and oil pipe grinding technology, which is applied in the direction of drill pipe, casing, earthwork drilling, etc., can solve the problems of oil well sewage on metal corrosion, short service life, easy scaling of steel pipes, etc., and achieve good mechanical and physical properties, solidification Short time, the effect of increasing the glue content

Inactive Publication Date: 2010-06-16
SHENGLI OIL FIELD XINDA PIPE IND TECH DEV CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0002] The downhole tubing in the prior art is generally of steel structure, and its defect is that the oil well sewage has severe corrosion on the metal, and the inner wall of the steel pipe is easy to scale and wax, and has a short service life. Fast failure due to friction

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] Embodiments of the present invention are described in detail below.

[0014] A formula and production process for anti-eccentric wear oil pipe, its preparation raw materials include glass fiber yarn, epoxy resin, curing agent, toughening agent and leveling agent, epoxy resin is bisphenol A type epoxy resin, curing agent is Anhydride, the weight ratio is 100:83.

[0015] The production process includes three processes of winding, curing, demoulding and molding. It is characterized in that the curing process is divided into three stages: the resin preheating stage, the time is 20 minutes, and the temperature is 75 ° C; the resin ring-opening solidification stage, the time is 30 Minutes, the temperature is 120°C; resin curing stage, the time is 30 minutes, the temperature is 160°C.

[0016] The heating in the curing process adopts the internal steam heating method, that is, steam is passed into the hollow winding mold for heating.

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PUM

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Abstract

The invention provides a formula of an eccentric wear-resistant oil pipe and a production process. The preparation raw materials comprise glass fiber yarn, an epoxy resin, a curing agent, a flexibilizer and a flatting agent. The formula is characterized in that: the epoxy resin is a bisphenol A epoxy resin; the curing agent is acid anhydride or modified aromatic amine; the weight ratio of the bisphenol A epoxy resin to the acid anhydride is 100:80-100; the best weight ratio of the bisphenol A epoxy resin to the acid anhydride is 100:83; and the eccentric wear-resistant oil pipe has the advantages of good mechanical and physical performance, good corrosion resistance, high temperature resistance, long service life and good flow property of a medium, no scale, no wax deposition, difficult blockage and the like.

Description

Technical field [0001] The invention relates to a production formula and a production process of a glass steel pipe, in particular to a formula and a production process of an anti-eccentric wear oil pipe. Background technique [0002] The downhole tubing in the prior art is generally of steel structure, and its defect is that the oil well sewage has severe corrosion on the metal, and the inner wall of the steel pipe is easy to scale and wax, and has a short service life. Fast to failure due to friction. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a downhole tubing with high pressure resistance, good medium fluidity, long service life, corrosion resistance, and low friction coefficient with steel sucker rods. [0004] The technical scheme adopted in the present invention is: a formula and production process of anti-eccentric wear tubing, the preparation raw materials of which include glass fiber yarn, epoxy r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/02C08K13/04C08K7/14C08K5/09C08K5/18E21B17/00
Inventor 王义斌修文军曾万蓉
Owner SHENGLI OIL FIELD XINDA PIPE IND TECH DEV CO LTD
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