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Organic clay with high jellification rate in white oil and preparation method thereof

A technology of gel formation and white oil, which is applied in the directions of chemical instruments and methods, drilling compositions, etc., to achieve good gel formation effect and good compatibility.

Inactive Publication Date: 2010-01-13
HUBEI HANC NEW TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing oil-based drilling fluid organic soil in China is mainly developed for diesel base. The gelation rate in diesel oil is generally as high as 90%, while the gelation rate in white oil and gas oil is lower, generally less than 10%.

Method used

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  • Organic clay with high jellification rate in white oil and preparation method thereof

Examples

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Effect test

example 1

[0027] Disperse 65 grams of sodium bentonite dry material into 600 grams of water, and after high-speed stirring, remove impurities by flotation to obtain a stable suspension for subsequent use; dissolve 20 grams of cetyltrimethylammonium bromide in 200 grams of In water, stir evenly to make it a clear and transparent solution; dissolve 12.5 grams of OP-10 in 150 grams of water, stir evenly, and set aside. Under the condition of high-speed stirring, slowly add cetyltrimethylammonium bromide solution to the suspension, react at 80°C for 1.5 hours, continue to drop OP-10 aqueous solution, and react at 80°C for 1.5 hours hours, finally wash the product three times, filter to obtain a solid product, dry the solid product at a temperature of 100-110°C, and then pulverize it, and pass through a 100-mesh sieve to obtain an organic soil product with a high gelation rate in white oil.

example 2

[0029] Disperse 70 grams of sodium-based bentonite dry material into 600 grams of water, and after high-speed stirring, remove impurities by flotation to obtain a stable suspension for subsequent use; dissolve 22 grams of octadecyltrimethylammonium chloride in 200 grams of In water, stir evenly to make it a clear and transparent solution for later use; dissolve 14 g of perfluorooctylsulfonyl 3-aminopropyltriethoxysilane in 150 g of water, stir evenly, and set aside for later use. Under the condition of high-speed stirring, the octadecyltrimethylammonium chloride solution was slowly added dropwise to the suspension, reacted at 90°C for 2 hours, and continued to dropwise add perfluorooctylsulfonyl 3-aminopropyltri Ethoxysilane aqueous solution, react at 90°C for another 2 hours, finally wash the product 4 times, filter to obtain a solid product, dry the solid product at a temperature of 100-110°C, crush it, and pass through a 100-mesh sieve to obtain white Organic soil product w...

example 3

[0031] Disperse 62 grams of sodium-based bentonite dry material into 600 grams of water, and after high-speed stirring, remove impurities by flotation to obtain a stable suspension for subsequent use; dissolve 24 grams of cetyltrimethylammonium chloride in 200 grams of In water, stir evenly to make it a clear and transparent solution; dissolve 15 grams of OP-15 in 150 grams of water, stir evenly, and set aside. Under the condition of high-speed stirring, slowly add cetyltrimethylammonium chloride solution to the suspension, react at 95°C for 2 hours, continue to drop OP-15 aqueous solution, and react at 95°C for 2 hours , and finally wash the product 5 times, filter to obtain a solid product, dry the solid product at a temperature of 100-110° C., pulverize it, and pass through a 100-mesh sieve to obtain an organic soil product with a high gelation rate in white oil. The organic soil in the example is evaluated by gelation rate:

[0032] Prepare to measure 300 milliliters of w...

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Abstract

The invention provides organic clay with high jellification rate in the white oil and a preparation method thereof, wherein, the organic clay is composed of 60 to 70 parts of drier sodium base bentonite, 20 to 25 parts of quaternary cationics, 10 to 15 parts of nonionic surface active agent and 750 to 1200 parts of water. The preparation method comprises the following steps: (1) the drier odium base bentonite is dispersed in water, and impurity is removed through flotation process, therefore stable suspending liquid a is formed; (2) the quaternary cationics is added into water and evenly stirred, therefore liquid b is obtained; (3) the nonionic surface active agent is added into water and evenly stirred, therefore liquid c is obtained; (4) the liquid b is dipped into the suspending liquida to react for 1.5 to 2.5 hours at 75 to 95 DEG C, and then the liquid c is sequentially dipped into the suspending liquid a to react for 1.5 to 2.5 hours at 75 to 95 DEG C; and (5) the product obtained in step (4) is washed for 3 to 5 times, then dried at 100 to 110 DEG C, crushed and sifted with 100 meshes, and then the organic clay product with high jellification rate in the white oil is obtained.

Description

technical field [0001] The invention relates to the field of oil-based drilling fluid organic soil, in particular to organic soil with high gelation rate in white oil and a preparation method thereof. Background technique [0002] Diesel oil is rich in aromatic hydrocarbons and has strong polarity, while white oil and gas-to-oil are mainly saturated alkanes, which basically do not contain aromatic hydrocarbons and have weak polarity. The existing domestic oil-based drilling fluid organoclays are mainly developed for diesel-based. The gelation rate in diesel oil is generally as high as 90%, while the gelation rate in white oil and gas oil is lower, generally less than 10%. With the increasing awareness of environmental protection, the use of diesel oil as the oil-based drilling fluid is gradually eliminated, and oilfield drilling and development generally use low-toxic oils such as white oil or gas-based oil as the oil-based drilling fluid. The organoclay developed by the pr...

Claims

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Application Information

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IPC IPC(8): C09K8/035C09K8/03
Inventor 史茂勇舒福昌石磊向兴金
Owner HUBEI HANC NEW TECH
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