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Drilling well slurry treatment agent

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

Inactive Publication Date: 2015-05-06
TAOEE QINGDAO WATER PURIFICATION EQUIP MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] 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

[0009] A kind of drilling mud treatment agent of the present embodiment is made up of following composition by weight percentage:

[0010] Polymethacrylic acid 20%, sodium hydroxide 12%, sodium lignosulfonate 15%, water balance.

[0011] 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

[0013] A kind of drilling mud treatment agent of the present embodiment is made up of following composition by weight percentage:

[0014] Polymethacrylic acid 25%, sodium hydroxide 10%, sodium lignosulfonate 8%, water balance.

[0015] 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

[0017] A kind of drilling mud treatment agent of the present embodiment is made up of following composition by weight percentage:

[0018] Polymethacrylic acid 30%, sodium hydroxide 5%, sodium lignosulfonate 5%, water balance.

[0019] 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 invention discloses a drilling well slurry treatment agent. The drilling well slurry treatment agent comprises, by weight, 20-30% of polymethylacrylic acid, 5-12% of sodium hydroxide, 5-15% of sodium lignosulphonate and the balance water. The drilling well slurry treatment agent can be used in a petroleum drilling well and a geological core drill hole, stabilizes slurry performances, has effects of preventing mud rock collapse and protecting the mud rock wall, is safe in the well, realizes a high drilling rate and is convenient for use.

Description

technical field [0001] The invention relates to a mud treatment agent, in particular to a drilling mud treatment agent. Background technique [0002] 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 [0003] 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. [0004] 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% polymethacrylic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/03
CPCC09K8/03
Inventor 位峰
Owner TAOEE QINGDAO WATER PURIFICATION EQUIP MFG