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Silicon fluoride activating agent for drilling fluid

A drilling fluid and active agent technology, applied in drilling compositions, chemical instruments and methods, etc., can solve the problems of reducing the surface tension and low surface tension of the mud, and achieve the reduction of surface tension, the enhancement of high temperature resistance, and the inhibition of lubrication. good effect

Inactive Publication Date: 2019-01-04
HEBEI SILICON VALLEY CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the defects of the prior art, the present invention designs a silicon-fluorine active agent for drilling fluid, which has a very small surface tension, can greatly reduce the surface tension of the mud, and effectively improves the phenomenon of mud water and soil stratification

Method used

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  • Silicon fluoride activating agent for drilling fluid
  • Silicon fluoride activating agent for drilling fluid
  • Silicon fluoride activating agent for drilling fluid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1, silicon fluorine active agent for drilling fluid, by mass parts, comprises 20 parts of sodium chloride, 10 parts of potassium chloride, 5 parts of sodium sulfate, 0 parts of formaldehyde, 60 parts of sodium sulfite, 2 parts of sodium sulfonate, 10 parts of aluminum chloride, 1 part of sodium polyacrylate, 2 parts of maleic anhydride, 2 parts of potassium phosphate, 3 parts of perfluorooctyl ethyl acrylate and 6 parts of hydrogen-containing silicone oil.

Embodiment 2

[0016] Embodiment 2, silicon-fluorine active agent for drilling fluid, by mass parts, comprises 50 parts of sodium chloride, 18 parts of potassium chloride, 15 parts of sodium sulfate, 10 parts of formaldehyde, 150 parts of sodium sulfite, 5 parts of sodium sulfonate, 20 parts of aluminum chloride, 5 parts of sodium polyacrylate, 5 parts of maleic anhydride, 4 parts of potassium phosphate, 4 parts of perfluorooctyl ethyl acrylate and 8 parts of hydrogen-containing silicone oil.

Embodiment 3

[0017] Embodiment 3, silicon fluorine active agent for drilling fluid, by mass parts, comprises 35 parts of sodium chloride, 14 parts of potassium chloride, 10 parts of sodium sulfate, 5 parts of formaldehyde, 105 parts of sodium sulfite, 3 parts of sodium sulfonate, 15 parts of aluminum chloride, 3 parts of sodium polyacrylate, 4 parts of maleic anhydride, 3 parts of potassium phosphate, 3.5 parts of perfluorooctyl ethyl acrylate and 7 parts of hydrogen-containing silicone oil.

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Abstract

The invention discloses a silicon fluoride activating agent for drilling fluid and belongs to the technical field of an activating agent. The silicon fluoride activating agent for the drilling fluid comprises the following components in parts by mass: 20 to 50 parts of sodium chloride, 10 to 18 parts of potassium chloride, 5 to 15 parts of sodium sulfate, 0 to 10 parts of formaldehyde, 60 to 150 parts of sodium sulfite, 2 to 5 parts of sulfonate, 10 to 20 parts of aluminum chloride, 1 to 5 parts of sodium polyacrylate, 2 to 5 parts of maleic anhydride, 2 to 4 parts of potassium phosphate, 3 to4 parts of perfluorooctyl ethyl acrylate and 6 to 8 parts of hydrogen-containing silicon oil. According to the activating agent, hydrogen on carbon hydrogen in the common activating agent is substituted by fluorine atoms, so that a fluorocarbon oleophilic activating agent is formed and has excellent high-temperature stability and chemical inertness and extremely small surface tension, the surfacetension of slurry can be reduced greatly, the distribution area of water on the surfaces of soil particles can be increased, the wetting effect is good, and the water and soil layering phenomenon ofthe slurry can be effectively improved.

Description

technical field [0001] The invention belongs to the technical field of active agents, and relates to a silicon-fluorine active agent, in particular to a silicon-fluorine active agent for drilling fluid. Background technique [0002] Drilling fluid is an important fluid in drilling engineering, and its performance is directly related to the quality of drilling, and plays a crucial role in the oil recovery efficiency of an oil field. With the rapid development of deep well drilling technology, the technical difficulties faced by deep well and ultra-deep well drilling fluid are becoming more and more prominent. Due to the complex geological conditions in my country, deep well drilling fluids are faced with the "three highs" of high temperature, high salt and high density, and the requirements for drilling fluid performance are getting higher and higher. As the most commonly used treatment agent in drilling fluid, activator has insurmountable advantages in improving drilling fl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/035C09K8/03
CPCC09K8/03C09K8/035C09K2208/12C09K2208/28C09K2208/34
Inventor 宋志强宋利强宋聚强蔡俊娥王晓
Owner HEBEI SILICON VALLEY CHEM CO LTD