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Drilling mud treatment agent

A drilling mud and treatment agent technology, which is applied to drilling compositions, chemical instruments and methods, etc., can solve problems such as unstable mud performance, and achieve the effects of high drilling speed, stable performance and easy use.

Inactive Publication Date: 2015-01-28
QINGDAO JINGYIXIN ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Currently, the drilling mud treatment agent is used in oil drilling and geological core drilling, the mud performance is often unstable, and it cannot have anti-collapse and wall protection effects on mudstone

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] A kind of drilling mud treatment agent of the present embodiment is made up of following composition by weight percentage:

[0011] Polymethacrylic acid 20%, potassium hydroxide 12%, sodium lignosulfonate 15%, water balance.

[0012] Quality index: Item Water-soluble humic acid (dry basis) % Moisture % Potassium (dry basis) % PH Water insoluble matter % Fineness (mesh) Standard 50±2 10 10±1 5—6 1-1.5 120 Usage: Good water solubility, can be directly added to the mud, and added while stirring. Dosage: 1. Generally add 1-3%; 2. As anti-slump agent and precipitation agent 8.5-17 kg / m3; 3. As diluent in fresh water slurry 2.5-8.5 kg / m3; 4. For high temperature stability Agent: 17-22 kg / m3;

Embodiment 2

[0014] A kind of drilling mud treatment agent of the present embodiment is made up of following composition by weight percentage:

[0015] Polymethacrylic acid 25%, potassium hydroxide 10%, sodium lignosulfonate 8%, water balance.

[0016] Quality index: Item Water-soluble humic acid (dry basis) % Moisture % Potassium (dry basis) % PH Water insoluble matter % Fineness (mesh) Standard 50±2 12 10±1 5—6 1-1.5 120 Usage: Good water solubility, can be directly added to the mud, and added while stirring. Dosage: 1. Generally add 1-3%; 2. As anti-slump agent and precipitation agent 8.5-17 kg / m3; 3. As diluent in fresh water slurry 2.5-8.5 kg / m3; 4. For high temperature stability Agent: 17-22 kg / m3;

Embodiment 3

[0018] A kind of drilling mud treatment agent of the present embodiment is made up of following composition by weight percentage:

[0019] Polymethacrylic acid 30%, potassium hydroxide 5%, sodium lignosulfonate 5%, water balance.

[0020] Quality index: Item Water-soluble humic acid (dry basis) % Moisture % Potassium (dry basis) % PH Water insoluble matter % Fineness (mesh) Standard 50±2 9 10±1 5—6 1-1.5 120 Usage: Good water solubility, can be directly added to the mud, and added while stirring. Dosage: 1. Generally add 1-3%; 2. As anti-slump agent and precipitation agent 8.5-17 kg / m3; 3. As diluent in fresh water slurry 2.5-8.5 kg / m3; 4. For high temperature stability Agent: 17-22 kg / m3;

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PUM

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Abstract

The technical scheme adopted by the invention is that a drilling mud treatment agent comprises the following components by weight percentage: 20-30% of polymethacrylic acid, 5-12% of potassium hydroxide, 5-15% of sodium ligninsulfonate and the balance of water. The invention aims at being used in oil well drilling and geological core drilling, realizing stable mud properties and realizing anti-sloughing and wall-protecting efficacy against mudstone, safety in wells, high drilling speed and simplicity and convenience in use.

Description

[0001] technical field [0002] The invention relates to a mud treatment agent, in particular to a drilling mud treatment agent. Background technique [0003] Existing drilling mud treatment agents used in oil drilling and geological core drilling often have unstable mud properties and cannot have anti-collapse and wall protection effects on mudstone. Contents of the invention [0004] Aiming at the shortcomings and deficiencies of the existing technology, the technical problem to be solved by the present invention is that when used in oil drilling and geological core drilling, the mud performance is stable, and it has anti-collapse and wall protection effects on mudstone rocks, safety in the well, and high drilling speed. , easy to use. [0005] In order to solve the above-mentioned technical problems, the technical solution adopted by the present invention is that a drilling mud treatment agent is composed of the following components in weight percentage: 20-30% polymet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/035
CPCC09K8/03
Inventor 王鹏
Owner QINGDAO JINGYIXIN ELECTRONICS TECH