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High-lubrication micro-foam drilling fluid and preparation method thereof

A drilling fluid and foam technology, which is applied in the field of high lubricating foam drilling fluid and its preparation, can solve the problems of restricting the application of micro-foam drilling fluid, poor foam stability, application limitation, etc., and achieves excellent anti-pollution performance, low cost and wide source. Effect

Inactive Publication Date: 2018-03-13
盘锦百利化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are some defects, such as: limited application, poor foam stability, poor lubricity, etc., which restrict the application of microfoam drilling fluid

Method used

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  • High-lubrication micro-foam drilling fluid and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of high-lubricating micro-foam drilling fluid, its raw materials are proportioned as follows in parts by weight: 12 parts of sodium bentonite, 0.3 parts of sodium hydroxide, 140 parts of water, 5 parts of xanthan gum, and 2 parts of high-viscosity carboxymethyl cellulose sodium , 1 part of aluminum oxide, 1 part of polyquaternium sodium, 10 parts of sodium sulfonate, 2 parts of carboxymethyl cellulose, 0.5 part of nano-titanium chloride, 0.5 part of polyphenylene ether, 0.1 part of sodium lauryl sulfate, Octadecene succinic acid 5 parts.

[0023] The preparation method of the drilling fluid is specifically as follows: at normal temperature and pressure, add each component in turn and weigh according to the above-mentioned proportions, mix evenly and stir for 2 hours at a stirring speed of 1000r / min to obtain the product.

Embodiment 2

[0025] A kind of high-lubricating micro-foam drilling fluid, its raw materials are proportioned as follows by weight: 10 parts of calcium-based bentonite, 0.25 parts of sodium hydroxide, 110 parts of water, 5 parts of xanthan gum, and 3 parts of high-viscosity carboxymethyl cellulose sodium , 3 parts of aluminum oxide, 3 parts of polyquaternium sodium, 12 parts of potassium sulfonate, 4 parts of carboxymethyl cellulose, 0.7 parts of nano-titanium chloride, 0.7 parts of polyphenylpropyl ether, 0.3 parts of sodium lauryl sulfate, Octadecene succinic acid 7 parts.

[0026] The preparation method of the drilling fluid is specifically as follows: at normal temperature and pressure, add each component in turn and weigh according to the above-mentioned proportions, mix evenly and stir for 6 hours at a stirring speed of 1000r / min to obtain the product.

Embodiment 3

[0028] A kind of high-lubricating micro-foam drilling fluid, its raw materials are proportioned as follows in parts by weight: 8 parts of sodium bentonite, 0.2 parts of sodium hydroxide, 100 parts of water, 5 parts of xanthan gum, and 4 parts of high-viscosity carboxymethyl cellulose sodium , 5 parts of aluminum oxide, 1 part of polyquaternium sodium, 15 parts of calcium sulfonate, 6 parts of carboxymethyl cellulose, 1 part of nano-titanium chloride, 1 part of polyphenylene dimethyl ether, 0.5 part of sodium lauryl sulfate , 10 parts of octadecyl succinic acid.

[0029] The preparation method of the drilling fluid is specifically as follows: at normal temperature and pressure, add each component in turn and weigh according to the above-mentioned proportions, mix evenly and stir for 4 hours at a stirring speed of 800r / min to obtain the product.

[0030] 1. The microfoam drilling fluid in the above-mentioned embodiment is detected, and the detection results are shown in Table 1....

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Abstract

The invention belongs to the field of drilling fluid for oil field drilling, in particular to a high-lubrication foam drilling fluid and a preparation method thereof. The high-lubricating microfoam drilling fluid is composed of base slurry, lubricant and additives; the raw materials of the base slurry are proportioned in parts by weight as follows: 8-12 parts of bentonite, 0.2-0.3 parts of alkali, 100-140 parts of water Described additive, its raw material proportioning by weight is as follows: 5-10 parts of tackifier, 1-5 parts of aluminum oxide, 1-5 parts of polyquaternium sodium, 10-15 parts of sulfonate, carboxymethyl 2-6 parts of base cellulose, 0.5-1 part of nano-titanium chloride, 0.5-1 part of viscosity reducer, 0.1-0.5 part of sodium lauryl sulfate; the lubricant is aliphatic succinic acid, and the consumption is by weight The number of servings is counted as 5-10 servings. The cost of raw materials is low, the source is wide, and there is no pollution to the environment. It is an environmentally friendly material, has excellent anti-pollution performance, and has the advantages of safe use and great application potential.

Description

technical field [0001] The invention belongs to the field of drilling fluid for oil field drilling, in particular to a high-lubrication foam drilling fluid and a preparation method thereof. Background technique [0002] Micro-foam drilling fluid technology was introduced from abroad in the 21st century. It is a foam containing air and gas cores. It is a micro-foam produced by combining surfactants and polymers. Microbubbles improve the stability of the bubbles by strengthening the strength of the gas core wall, forming a foam network that can prevent or delay the drilling fluid from invading the formation. Micro-bubble drilling fluid not only improves drilling efficiency, but also can further optimize the performance of drilling fluid. Moreover, the preparation and maintenance of micro-bubble drilling fluid is simple and convenient, and it has excellent wellbore cleaning effect and suspension capacity. These characteristics make it widely used in drilling work. [0003] Dr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/38
CPCC09K8/38C09K2208/34
Inventor 张庆军
Owner 盘锦百利化工有限公司
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