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Proportion research of novel drilling fluid lubricant

A drilling fluid and lubricant technology, applied in the direction of drilling compositions, chemical instruments and methods, etc., can solve problems such as adverse environmental effects, increased viscosity of drilling fluid, foaming of drilling fluid, etc., to reduce pipe sticking accidents, The effect of reducing drill string torque and reducing fluid loss

Inactive Publication Date: 2015-06-03
QINGDAO HUICHENG PETROCHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the drilling fluid lubricants used in the field mainly have the following shortcomings and problems: it is easy to cause drilling fluid foaming, and it is easy to cause the viscosity of the drilling fluid to increase, which is not conducive to the on-site maintenance of the drilling fluid; fermentation occurs after a long time; Ideal, unstable in seawater drilling fluid; has a series of disadvantages such as adverse effects on the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Raw materials and ratio:

[0016] Polyoxypropylene glyceryl ether: 10 parts, sodium lauryl carboxylate 2.5 parts, fatty acid aluminum 8 parts, residual oil 0.3 parts.

[0017] Preparation:

[0018] Add polyoxypropylene glyceryl ether, sodium lauryl carboxylate, and fatty acid aluminum to the residual oil at one time according to the formula respectively, and mix and stir for 2-4 hours to obtain the drilling fluid lubricant.

Embodiment 2

[0020] Raw materials and ratio:

[0021] Polyoxypropylene glyceryl ether: 15 parts, sodium lauryl carboxylate 3.0 parts, fatty acid aluminum 10 parts, residual oil 0.3 parts.

[0022] Concrete preparation method is with embodiment 1.

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Abstract

The invention aims to provide a novel drilling fluid lubricant. The novel drilling fluid lubricant comprises the following components in percentage by weight: polyoxy enol ether, an emulsifier, fatty acid aluminum and residual oil according to the ratio of (5-20): (0.1-5): (1-10): (0.1-0.5). The novel drilling fluid lubricant has the beneficial effects of attractive lubricating property; by utilizing the lubricant in the field, the torque of a drill steam and the resistance of a summer drill can be reduced effectively, the accident of hamming of a drilling tool is reduced, the drilling fluid is not affected, the thickening and bubbling are avoided, the filter loss is reduced a little, and the environmental influence is small.

Description

technical field [0001] The invention relates to a formula research suitable for oilfield drilling fluid lubricants, belonging to the field of chemical preparations. Background of the invention [0002] Drilling fluid lubricant is an important chemical treatment agent for drilling fluid, which improves the lubricity of drilling fluid, reduces the friction between the well wall and casing or drilling tools, reduces the rotational torque of the drill string and its resistance to drilling, thereby Reduce the occurrence of stuck drill accidents. In recent years, due to the development of drilling technology, the demand for drilling fluid has increased sharply, so the lubrication performance of drilling fluid has been paid more and more attention. At present, both the variety and performance of lubricants have a considerable distance compared with foreign countries. At present, the drilling fluid lubricants used in the field mainly have the following shortcomings and problems: i...

Claims

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Application Information

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IPC IPC(8): C09K8/035
CPCC09K8/035C09K2208/34
Inventor 张森李卓
Owner QINGDAO HUICHENG PETROCHEM TECH