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Preparation method of treating agent for improving lubricating effect of drilling fluid

A technology for treating agent and drilling fluid, applied in the field of preparation of treating agent, can solve the problems of high cost, environmental pollution, poor biodegradation performance of mineral oil lubricant, etc., and achieve the effect of increasing service life and reducing adsorption of mud cake

Inactive Publication Date: 2021-04-30
东营辰鑫应用技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used drilling fluid lubricants in the prior art are mostly mineral oil lubricants, but the biodegradability of mineral oil lubricants is poor. During use, they will stay in water and soil for a long time, causing environmental pollution, and mineral oil lubricants The oil lubricant has a high level of fluorescence, which has a great impact on the analysis of geological data, and its high cost is not suitable for large-scale use

Method used

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  • Preparation method of treating agent for improving lubricating effect of drilling fluid
  • Preparation method of treating agent for improving lubricating effect of drilling fluid
  • Preparation method of treating agent for improving lubricating effect of drilling fluid

Examples

Experimental program
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Effect test

Embodiment 1

[0037] A preparation method of a treatment agent for improving the lubricating effect of drilling fluid, comprising the following raw materials in parts by weight:

[0038] 5 parts of sodium lauryl sulfate, 10 parts of deionized water, 7 parts of sodium carboxymethylcellulose, 6 parts of polyvinylpyrrolidone, 3 parts of Span 80, 70 parts of lubricating components and 0.6 parts of antioxidant;

[0039] The treatment agent is prepared through the following steps:

[0040] The first step, mixing sodium lauryl sulfate and deionized water, stirring evenly, adding sodium carboxymethylcellulose and polyvinylpyrrolidone to obtain the first mixed solution;

[0041] The second step is to add Span 80 to the lubricating component, then add the antioxidant, and ultrasonically disperse for 30 minutes at a temperature of 40°C and a frequency of 40kHz to obtain the second mixed liquid;

[0042] The third step is to mix the first mixed liquid and the second mixed liquid, and stir for 4-8 hour...

Embodiment 2

[0055] A preparation method of a treatment agent for improving the lubricating effect of drilling fluid, comprising the following raw materials in parts by weight:

[0056] 6 parts of sodium lauryl sulfate, 15 parts of deionized water, 8 parts of sodium carboxymethylcellulose, 7 parts of polyvinylpyrrolidone, 4 parts of Span 80, 75 parts of lubricating components and 0.8 parts of antioxidant;

[0057] The treatment agent is prepared through the following steps:

[0058] The first step, mixing sodium lauryl sulfate and deionized water, stirring evenly, adding sodium carboxymethylcellulose and polyvinylpyrrolidone to obtain the first mixed solution;

[0059] The second step is to add Span 80 to the lubricating component, then add antioxidant, and ultrasonically disperse for 45 minutes at a temperature of 50°C and a frequency of 45kHz; obtain the second mixed liquid;

[0060] The third step is to mix the first mixed liquid and the second mixed liquid, and stir for 4-8 hours at a...

Embodiment 3

[0073] A preparation method of a treatment agent for improving the lubricating effect of drilling fluid, comprising the following raw materials in parts by weight:

[0074] 7 parts of sodium lauryl sulfate, 20 parts of deionized water, 9 parts of sodium carboxymethylcellulose, 8 parts of polyvinylpyrrolidone, 5 parts of Span 80, 80 parts of lubricating components and 1 part of antioxidant;

[0075] The treatment agent is prepared through the following steps:

[0076] The first step, mixing sodium lauryl sulfate and deionized water, stirring evenly, adding sodium carboxymethylcellulose and polyvinylpyrrolidone to obtain the first mixed solution;

[0077] The second step is to add Span 80 to the lubricating component, then add antioxidant, and ultrasonically disperse for 60 minutes at a temperature of 60°C and a frequency of 50kHz; obtain the second mixed liquid;

[0078] The third step is to mix the first mixed liquid and the second mixed liquid, and stir for 4-8 hours at a ro...

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Abstract

The invention belongs to the technical field of drilling fluid auxiliaries, and particularly relates to a preparation method of a treating agent for improving the lubricating effect of drilling fluid. The preparation method comprises the following raw materials in parts by weight: 5-7 parts of lauryl sodium sulfate, 10-20 parts of deionized water, 7-9 parts of sodium carboxymethyl cellulose, 6-8 parts of polyvinylpyrrolidone, 3-5 parts of span 80, 70-80 parts of lubricating component and 0.6-1 part of antioxidant. The diethyltoluenediamine reacts with the fatty acid triglyceride to generate the amido bond-containing component a, the amido bond-containing component a has low surface tension, polar groups can be adsorbed on a friction interface to form a layer of adsorption film, mud cake adsorption is reduced, and the service life of the lubricant is prolonged when the lubricant is used in cooperation with the antioxidant; meanwhile, resistance of thermal motion of the lubricating component can be maintained through the component b, and lubricating effect failure caused by particle aggregation is prevented; the antioxidant component and the basic component are matched to generate a synergistic effect so that the service life of the antioxidant is prolonged.

Description

technical field [0001] The invention belongs to the technical field of drilling fluid additives, and in particular relates to a preparation method of a treatment agent for improving the lubrication effect of drilling fluid. Background technique [0002] Drilling fluid is a circulating flushing medium used in the drilling process, also known as drilling flushing fluid, which mainly cleans the bottom of the hole, carries cuttings, cools the drill bit, lubricates the drill tool, protects the hole wall from collapse, protects the oil layer, balances the formation pressure and The performance of drilling fluid directly affects drilling efficiency, downhole safety and production cost, and is an important part of drilling engineering technology. Drilling fluid lubricant is an important chemical treatment agent for drilling fluid, which is used to improve the lubricating performance of drilling fluid, reduce downhole frictional resistance, improve the rheology and filtration perform...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/035C07C209/18C07C211/50C07C37/11C07C39/15C07C41/30C07C43/178C12P19/14C12P19/04
CPCC07C37/11C07C41/30C07C209/18C09K8/035C09K2208/34C12P19/04C12P19/14C07C43/1783C07C39/15C07C211/50
Inventor 张军志
Owner 东营辰鑫应用技术开发有限公司
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