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Oil drill pipe intercoat powder coating without using phenolic primer for bottoming

A technology of oil drill pipe and phenolic primer, which is applied in powder coatings, anti-corrosion coatings, epoxy resin coatings, etc., can solve the problems of limited corrosion resistance of oil drill pipes, and achieve excellent chemical anti-corrosion performance, high cross-linking density, The effect of high TG value

Inactive Publication Date: 2019-09-27
ZHANGJIAGANG JIANGNAN POWDER COATING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One of the purposes of the present invention is to provide a kind of internal powder coating for oil drill pipe without using phenolic primer to solve the technical problem of limited corrosion resistance of oil drill pipe

Method used

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  • Oil drill pipe intercoat powder coating without using phenolic primer for bottoming
  • Oil drill pipe intercoat powder coating without using phenolic primer for bottoming
  • Oil drill pipe intercoat powder coating without using phenolic primer for bottoming

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Embodiment Construction

[0039] In order to clearly and completely describe the purpose, technical solution, and advantages of the present invention, the embodiments of the present invention will be further described in detail below. It should be understood that the specific embodiments described here are part of the embodiments of the present invention, rather than all embodiments, and are only used to explain the embodiments of the present invention, and are not intended to limit the embodiments of the present invention. All other embodiments obtained under the premise of creative work all belong to the protection scope of the present invention.

[0040] For purposes of simplicity and illustration, the principles of the embodiments are mainly described with reference to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. However obvious it is. To those of ordinary skill in the art, the embodiments may in p...

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PUM

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Abstract

The invention discloses an oil drill pipe intercoat powder coating without using a phenolic primer for bottoming. Raw materials include epoxy resin KR104L, epoxy resin KD2012H, epoxy resin KD2012H, inorganic pigments titanium dioxide and carbon black, a secondary film-forming filler and a thixotropic agent. The secondary film-forming filler includes a flaky filler. The invention also discloses a preparation method of an oil drill pipe intercoat powder coating without using a phenolic primer for bottoming. The powder coating obtained by the invention has good chemical resistance and heat resistance.

Description

technical field [0001] The invention relates to the field of petroleum drilling, in particular to a powder coating for internal coating of petroleum drilling rods without using phenolic primer for priming. Background technique [0002] The oil drill pipe is the rod that connects the drill bit and transmits power during the oil drilling process. It connects the surface equipment of the drilling rig with the drilling and grinding equipment or the bottom hole device at the bottom of the drilling well, and transports the drilling mud to the drill bit. It needs to be able to withstand huge pressure during work. Internal and external pressure, torsion, bending and vibration, so the requirements for the mechanical properties of oil drill pipe are particularly high. In order to improve the wear resistance of the inner wall of the oil drill pipe and increase the service life of the oil drill pipe, a layer of inner coating will be applied to the inside of the oil drill pipe. [0003]...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/08C09D5/03C09D7/61
CPCC08K2003/2241C08K2003/3045C08L2205/025C08L2205/03C09D5/037C09D5/038C09D5/08C09D7/61C09D163/00C08L63/00C08K13/04C08K3/22C08K3/04C08K3/36C08K3/30C08K3/346
Inventor 王鸿黎永新田晖
Owner ZHANGJIAGANG JIANGNAN POWDER COATING
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