Preparation method and product of oil-like drilling fluid

An oil-based drilling fluid, polyamine inhibitor technology, applied in drilling compositions, chemical instruments and methods, etc., can solve inhibition, drilling rate and maintenance limitations, limit oil-based mud non-environmentally friendly water-based drilling Liquid use and other issues, to achieve excellent salt resistance and inhibition, excellent lubricity and anti-sticking properties, prevent hydration and dispersion effects

Active Publication Date: 2022-06-07
BEIJING DADE GUANGYUAN PETROLEUM TECH SERVICE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of oil and gas exploration and development, and the urgent need for national green development, the environmental regulations on drilling cuttings and waste mud discharge have become increasingly stringent, limiting the use of oil-based mud and non-environmentally friendly water-based drilling fluids. The existing water-based Mud systems are limited in terms of inhibition, rate of penetration and maintenance

Method used

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  • Preparation method and product of oil-like drilling fluid
  • Preparation method and product of oil-like drilling fluid
  • Preparation method and product of oil-like drilling fluid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] The preparation method of oil-like drilling fluid is mainly prepared by mixing the following components:

[0065] Polyamine inhibitors, cationic polyacrylamide, low viscosity polyanionic cellulose, xanthan gum, lubricants, and water, mixed evenly, wherein the final concentration of each component of the oil-like drilling fluid is: the volume fraction of the polyamine inhibitor is 2%, the mass concentration of the cationic polyacrylamide is 5kg / m 3 The mass concentration of the low viscosity polyanionic cellulose is 5kg / m 3 The mass concentration of xanthan gum is 1kg / m 3 The volume fraction of the lubricant is 1%.

[0066] Among them, polyamine inhibitors, lubricants are prepared by the method of the present application.

Embodiment 2

[0068] The preparation method of oil-like drilling fluid is mainly prepared by mixing the following components:

[0069] Polyamine inhibitors, cationic polyacrylamide, low viscosity polyanionic cellulose, xanthan gum, lubricants, and water, wherein the final concentration of each component in the oil-based drilling fluid is: the volume fraction of the polyamine inhibitor is 4%, the mass concentration of the cationic polyacrylamide is 10kg / m 3 The mass concentration of the low viscosity polyanionic cellulose is 15kg / m 3 The mass concentration of xanthan gum is 5kg / m 3 The volume fraction of the lubricant is 3%.

[0070] Among them, polyamine inhibitors, lubricants are prepared by the method of the present application.

Embodiment 3

[0072] The preparation method of oil-like drilling fluid is mainly prepared by mixing the following components:

[0073]Polyamine inhibitors, cationic polyacrylamide, low viscosity polyanionic cellulose, xanthan gum, lubricants, and water, wherein the final concentration of each component of the oil-like drilling fluid is: the volume fraction of the polyamine inhibitor is 3%, the mass concentration of the cationic polyacrylamide is 8kg / m 3 The mass concentration of the low viscosity polyanionic cellulose is 8 kg / m 3 The mass concentration of xanthan gum is 3kg / m 3 The volume fraction of the lubricant is 2%.

[0074] Among them, polyamine inhibitors, lubricants are prepared by the method of the present application.

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Abstract

The invention discloses a method for preparing an oil-based drilling fluid, which is mainly prepared by mixing the following components: polyamine inhibitor, cationic polyacrylamide, low-viscosity polyanionic cellulose, xanthan gum, lubricant, and appropriate amount of water , wherein, the final concentrations of the components in the oil-like drilling fluid are respectively: the volume fraction of the polyamine inhibitor is 2-4%, and the mass concentration of the cationic polyacrylamide is 5-10 kg / m 3 , the mass concentration of the low viscosity polyanion cellulose is 5~15kg / m 3 , the mass concentration of the xanthan gum is 1~5kg / m 3 , The volume fraction of the lubricant is 1-3%. The preparation method is simple. The invention also discloses an oil-like drilling fluid prepared by the above-mentioned preparation method, which has strong inhibitory properties and is close to oil-based drilling fluid. Chips and waste mud beneficial effects.

Description

Technical field [0001] The present invention relates to the technical field of oil and gas exploration and exploitation. More particularly, the present invention relates to a kind of oil-based drilling fluid preparation method and product thereof. Background [0002] With the continuous development of oil and gas exploration and development, the urgent need for national green development, the environmental regulations on drilling chips and waste mud discharge have become more and more stringent, restricting the use of oil-based mud and non-environmentally friendly water-based drilling fluids, and the existing water-based mud system is limited in terms of inhibition, drilling speed and maintenance. In view of the limitations and drawbacks of current high-performance mud applications, it is imperative to develop an oil-like drilling fluid for the purpose of reducing chip and waste mud. Contents of the Invention [0003] An object of the present invention is to solve at least the a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/04C08G65/00C08G65/333
CPCC09K8/04C08G65/00C08G65/333C09K2208/12C09K2208/34
Inventor 孟虎韩娟徐乐王家锦牟勇
Owner BEIJING DADE GUANGYUAN PETROLEUM TECH SERVICE
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