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A kind of emulsifier based on oil-based drilling fluid and preparation method thereof

An oil-based drilling fluid and emulsifier technology, applied in chemical instruments and methods, drilling compositions, etc., can solve the problem of high cost of emulsifiers, achieve low cost, good application prospects, and reduce the number of additions.

Active Publication Date: 2018-08-28
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of emulsifier based on oil base drilling fluid and preparation method thereof, to solve the problem that the cost of existing drilling fluid emulsifier described in background technology is higher

Method used

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  • A kind of emulsifier based on oil-based drilling fluid and preparation method thereof
  • A kind of emulsifier based on oil-based drilling fluid and preparation method thereof
  • A kind of emulsifier based on oil-based drilling fluid and preparation method thereof

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Embodiment 1

[0025] The embodiment of the present invention provides an emulsifier based on oil-based drilling fluid, the emulsifier includes tall oil fatty acid, polyethylene polyamine, chloroacetic acid amide, higher fatty alcohol sulfates and polyhydric alcohols, wherein tall oil The mass ratio of fatty acid and polyethylene polyamine is 4:1; the mass ratio of fatty acid amide intermediate product and chloroacetic acid amide generated by the reaction of tall oil fatty acid and polyethylene polyamine is 1:1; fatty acid amide intermediate product and chloroacetic acid The mass ratio of the tall oil fatty acid amide generated by the amide reaction to higher fatty alcohol sulfates is 99:1; The mass ratio is 8:1.

[0026] Embodiments of the present invention also provide a preparation method of an emulsifier based on oil-based drilling fluid, the preparation method comprising:

[0027] S101: Heat tall oil fatty acid to 60°C while stirring, add polyethylene polyamine according to the mass ra...

Embodiment 2

[0032]An embodiment of the present invention provides an emulsifier based on oil-based drilling fluid, the emulsifier includes tall oil fatty acid, diphenylmethanediamine, chloroacetic acid amide, alkyl aryl sulfonate and polyol ether, wherein , the mass ratio of tall oil fatty acid and diphenylmethanediamine is 3:1; the mass ratio of tall oil fatty acid and diphenylmethanediamine reaction generated fatty acid amide intermediate product and chloroacetic acid amide is 1:1 The mass ratio of tall oil fatty acid amide and alkyl aryl sulfonate produced by fatty acid amide intermediate product and chloroacetic acid amide reaction is 99:1; The emulsifier generated by tall oil fatty acid amide and surfactant reaction is effective The mass ratio of components to polyol ethers is 10:1.

[0033] Embodiments of the present invention also provide a preparation method of an emulsifier based on oil-based drilling fluid, the preparation method comprising:

[0034] S201: Heat tall oil fatty a...

Embodiment 3

[0039] An embodiment of the present invention provides an emulsifier based on oil-based drilling fluid, the emulsifier includes tall oil fatty acid, stearylamine, chloroacetic acid amide, alkyl naphthalene sulfonate and polyhydric alcohol, wherein tall oil fatty acid The mass ratio with octadecylamine is 4:1; the mass ratio of fatty acid amide intermediate product and chloroacetic acid amide generated by the reaction of tall oil fatty acid and octadecylamine is 1:1; the fatty acid amide intermediate product and chloroacetic acid amide reaction generate The mass ratio of tall oil fatty acid amide and alkylnaphthalene sulfonate of generation is 99:1; 9:1.

[0040] Embodiments of the present invention also provide a preparation method of an emulsifier based on oil-based drilling fluid, the preparation method comprising:

[0041] S301: Heat tall oil fatty acid to 60°C while stirring, add octadecylamine according to the mass ratio of tall oil fatty acid and octadecylamine at 4:1, ...

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Abstract

The invention provides an emulsifying agent based on oil-based drilling fluid. The emulsifying agent contains tall oil fatty acid, polyamine, chloroactic acid amide, surfactants and organic solvents. Meanwhile, the invention also provides a preparation method of the emulsifying agent based on oil-based drilling fluid. The emulsifying agent based on oil-based drilling fluid provided by the invention is an integral emulsifying agent; the characteristics of emulsion stability and high emulsion breaking voltage are realized; the emulsifying agent can reduce the addition times and the addition quantity of the emulsifying agents in the drilling fluid, so that the drilling cost can be reduced; the integral emulsifying agent has the advantages that the in-site operation, particularly the system maintenance difficulty can be reduced; further, the occurrence of complicated conditions is reduced; the use is convenient and effective. The preparation method of the emulsifying agent based on oil-based drilling fluid provided by the invention has the advantages that the production process is simple; the cost is low.

Description

technical field [0001] The invention relates to the technical field of emulsifiers, in particular to an oil-based drilling fluid-based emulsifier and a preparation method thereof. Background technique [0002] Drilling fluid is the circulating flushing medium used in the hole during drilling. Drilling fluids are divided into oil-based drilling fluids and water-based drilling fluids according to their composition. The oil-based drilling fluid is in the form of an emulsion. The key to its temperature resistance is whether the emulsion of the oil-based drilling fluid is stable at high temperature, and the key to a stable emulsion is whether an appropriate emulsifier is selected. Drilling fluid emulsifier (emulsilier fir drilling fluid) is a treatment agent used to promote two immiscible liquids to form a uniform mixed emulsion. It is generally believed that the mechanism of drilling fluid emulsifier is: (1) in oil / The water interface forms an adsorption interfacial film with...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/035C09K8/36
CPCC09K8/035C09K8/36
Inventor 刘乃震张振华华桂友郑斌曹晓晖关忠良
Owner BC P INC CHINA NAT PETROLEUM CORP
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