A kind of vegetable clay oil drilling fluid lubricant and preparation method thereof

A clay oil and drilling fluid technology, applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve the problems of environmental pollution, waste of resources, insufficient and rational development and utilization, etc., achieve low fluorescence level, and solve environmental pollution Effect

Active Publication Date: 2020-04-14
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Over the years, most oil factories have disposed of oily waste white clay by burying it, so that it has not been fully and rationally developed and utilized, resulting in waste of resources and environmental pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Add 30 parts of corn clay oil, 40 parts of soybean clay oil, 20 parts of glycerol fatty acid ester, and 10 parts of SP-80 into the reactor in turn, heat to 60℃, stir at high speed for 0.5h, and cool to obtain the vegetable clay oil drilling fluid Lubricant 1 # .

Embodiment 2

[0022] Add 70 parts of soybean clay oil, 20 parts of triethanolamine oleate, and 10 parts of TW-80 into the reactor in turn, heat to 60℃, stir at high speed for 0.5h, and cool to obtain the vegetable clay oil drilling fluid lubricant 2 # .

Embodiment 3

[0024] Add 40 parts of corn clay oil, 40 parts of palm clay oil, 10 parts of stearic acid, and 10 parts of SP-20 to the reactor in turn, heat to 60℃, stir at high speed for 0.5h, cool, and lubricate the obtained vegetable clay oil drilling fluid Agent 3 # .

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PUM

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Abstract

The invention discloses a plant clay oil drilling fluid lubricant, and a preparation method thereof, and belongs to the technical field of oil-gas well engineering. The plant clay oil drilling fluid lubricant is prepared from, by mass, 60 to 80% of plant clay oil, 10 to 30% of a fatty acid ester, and 5 to 10% of a surfactant. The plant clay oil drilling fluid lubricant is low in fluorescence grade, and excellent in lubrication performance; and the raw materials are cheap and easily available.

Description

Technical field [0001] The invention belongs to the technical field of oil and gas well engineering, and specifically relates to a vegetable clay oil drilling fluid lubricant and a preparation method thereof. Background technique [0002] With the increasing number of horizontal wells, directional wells and highly deviated wells, it is often necessary to use a large amount of drilling fluid lubricants in the oil drilling process to reduce the friction between the well wall and the drilling tool, and between the drilling tool and the casing. , Reduce downhole complexity and increase drilling speed. The general lubricants currently used, due to their fluorescent properties, have a greater impact on geological logging during use in exploratory wells and some key wells, and seriously affect the logging staff to discover new oil and gas layers in logging. Therefore, the development of a lubricant for low-fluorescence drilling fluid has important practical significance. [0003] White ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/035
Inventor 逯贵广袁俊秀封心领徐冬梅
Owner CHINA PETROLEUM & CHEM CORP
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