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High-performance environment-friendly thread sealing grease and preparation method thereof

A thread-sealing, high-performance technology, applied in chemical instruments and methods, other chemical processes, petroleum industry, etc., can solve problems such as physical and environmental hazards of drilling workers, and achieve the effect of improving rust resistance

Inactive Publication Date: 2014-05-28
TIANJIN DATONG GREASE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional thread grease containing heavy metals such as lead powder is very harmful to the health of drilling workers and the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The present invention will be further described in detail below through specific examples. The following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.

[0015] A high-performance environmentally friendly thread sealing grease, the sealing grease consists of 92.5% low-temperature lithium complex grease and 7.5% anti-rust additives. Low temperature lithium complex grease includes 12-hydroxystearic acid, sebacic acid, boric acid, lithium hydroxide, alpha-olefin oil. The antirust additive is a combination of barium petroleum sulfonate, barium dinonylnaphthalene sulfonate, octadecylamine N oleoyl sarcosine and benzotriazine.

[0016] A preparation method of high-performance environmentally friendly thread sealing grease, the method steps are: put about 1 / 3 of the base oil of all 12-hydroxystearic acid into a saponification kettle, start stirring, and heat up to nearly 100 DEG C, and continuously heat and stir ...

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PUM

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Abstract

The invention relates to high-performance environment-friendly thread sealing grease. The high-performance environment-friendly thread sealing grease comprises 92.5% of low-temperature compound lithium base grease and 7.5% of antirust additive, wherein the low-temperature compound lithium base grease comprises a 12-hydroxy stearic acid, sebacic acid, boric acid, lithium hydroxide and alpha-olefin oil; the antirust additive is a combination of petroleum barium sulfonate, dinonyl naphthalene barium sulfonate, N oleoyl octadecylamine sarcosinate and benzotriazole. The high-performance environment-friendly thread sealing grease does not contain heavy metals, is green and environment-friendly, can improve the anti-rust, sealing and lubricating performance between threads.

Description

technical field [0001] The invention belongs to the field of sealing grease, in particular to a high-performance environment-friendly thread sealing grease and a preparation method thereof. Background technique [0002] In the process of oil exploration and development, the tubing string and casing string are connected to each single pipe to a long pipe string through threads. In order to reduce the adhesion between threads as much as possible and improve the sealing performance of threads, the above An appropriate amount of thread sealing grease will be applied to the thread surface before the buckle to play a role in auxiliary lubrication and sealing. At present, the commonly used thread sealing grease is API oil-based thread grease. In addition to some base grease and base oil, this type of thread grease also contains a large amount of heavy metals, and its fillers, such as lead powder, zinc powder, copper powder, etc. , and lead powder, copper powder and other soft meta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/10C10M169/04C10N30/12
Inventor 封紫艳
Owner TIANJIN DATONG GREASE