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Environment-friendly type drilling fluid anti-wear agent with high temperature resistance and preparation method of environment-friendly type drilling fluid anti-wear agent

A technology of high temperature resistance and drilling fluid, applied in the field of drilling fluid additives, can solve the problems of poor temperature resistance, low biodegradability, and high biological toxicity of drilling fluid, and achieve high temperature resistance, strong resistance to salt intrusion, and good inhibition. Effect

Inactive Publication Date: 2016-04-20
XINJIANG DEBANG PETROLEUM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides an environment-friendly anti-high temperature drilling fluid anti-wear agent and its preparation method, which overcomes the deficiencies of the prior art and can effectively solve the problems of high biological toxicity, low biodegradability and poor temperature resistance of existing drilling fluids. question

Method used

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  • Environment-friendly type drilling fluid anti-wear agent with high temperature resistance and preparation method of environment-friendly type drilling fluid anti-wear agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1, the raw materials of the environment-friendly anti-high temperature drilling fluid antiwear agent include 16% to 17% of phosphorus pentasulfide, 21% to 22% of isooctyl alcohol, 16% to 17% of oleic acid, and 0.7% of diethylphosphonium ammonium by mass percentage. % to 0.8%, potassium hydroxide 0.4% to 0.6%, molybdenum dizincide 1.3% to 1.4%, dibasic potassium silicone oil 0.3% to 0.4%, zinc carbonate 0.7% to 0.75%, aluminum distearate 0.9% to 1.0% and the balance water.

Embodiment 2

[0017] Embodiment 2, the raw material of this environment-friendly anti-high temperature drilling fluid anti-wear agent comprises phosphorus pentasulfide 16% or 17%, isooctyl alcohol 21% or 22%, oleic acid 16% or 17%, diethylphosphonium ammonium 0.7% by mass percentage % or 0.8%, potassium hydroxide 0.4% or 0.6%, molybdenum dizincide 1.3% or 1.4%, dibasic potassium silicone oil 0.3% or 0.4%, zinc carbonate 0.7% or 0.75%, aluminum distearate 0.9% or 1.0% and the balance water.

Embodiment 3

[0018] Embodiment 3, as the optimization of the foregoing embodiment, the mass purity of phosphorus pentasulfide is 90% to 99%, the mass purity of isooctyl alcohol is 90% to 99%, the mass purity of oleic acid is 86% to 95%, diethylphosphine The mass purity of ammonium is 90% to 96%, the mass purity of potassium hydroxide is 87% to 96%, the mass purity of molybdenum dizincide is 90% to 96%, and the mass purity of dibasic potassium silicone oil is 96% to 100% %, the mass purity of zinc carbonate is 90% to 96%, and the mass purity of aluminum distearate is 90% to 96%.

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Abstract

The invention relates to the technical field of drilling fluid auxiliaries, and provides an environment-friendly type drilling fluid anti-wear agent with high temperature resistance and a preparation method of the environment-friendly type drilling fluid anti-wear agent. The environment-friendly type drilling fluid anti-wear agent with the high temperature resistance comprises raw materials as follows: phosphorus pentasulfide, isooctyl alcohol, oleic acid, diethyl ammonium phosphate, potassium hydroxide, a molybdenum di-zinc compound, dimethyl silicon oil, zinc carbonate, aluminum distearate and water. The environment-friendly type drilling fluid anti-wear agent with the high temperature resistance is prepared from a natural polymer material, biomass oil and lipid through modified synthesis and esterification reaction, is not only an environment-friendly type drilling fluid auxiliary, but also can reduce wear, decrease frictional resistance and torque, increase the drilling rate and reduce drilling cost effectively and has higher tolerable temperature and higher salt intrusion resistance, thereby having more popularization value and further having better rock fragment hydrated dispersion inhibition capacity and better shale expansion inhibition function, and accordingly, the environment-friendly type drilling fluid anti-wear agent with the high temperature resistance is the environment-friendly drilling fluid auxiliary with the high temperature resistance and has the characteristics of advancement, maturity and economic efficiency.

Description

technical field [0001] The invention relates to the technical field of drilling fluid additives, and relates to an environment-friendly anti-high temperature drilling fluid antiwear agent and a preparation method thereof. Background technique [0002] At present, oilfield drilling fluids are mainly "three sulfur" drilling fluids and "polysulfonate" drilling fluids, and some "environmental protection" drilling fluids are also used. Among them, "three sulfur" drilling fluids and "polysulfonium" drilling fluids use petroleum asphalt as anti-slump Drilling fluid and mineral oil are used as lubricants, and sulfonated phenolic resin and sulfonated lignite are used as fluid loss reducers. The color of drilling fluid is oily and pasty dark brown, and its biological toxicity and biodegradability cannot meet the requirements of environmental protection. For some "environmentally friendly" drilling fluids, the lubricant is mainly composed of mineral oil, emulsifier and clear water, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/03
CPCC09K8/03C09K2208/12
Inventor 商勇杨玉俊曹智
Owner XINJIANG DEBANG PETROLEUM TECH CO LTD
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