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High temperature-resistant and salt-resistant fluid loss additive and preparation method thereof

A fluid loss reducer and high temperature resistant technology, applied in chemical instruments and methods, drilling compositions, etc., can solve the problems of high quality requirements of workers, difficult operation and implementation, complicated processes, etc., and achieve cost reduction, filtration loss, etc. The effect of reducing volume and improving performance

Active Publication Date: 2014-04-23
濮阳市诚信钻采助剂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The scheme is complex in process, difficult to operate and implement, and has high requirements on the quality of workers

Method used

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  • High temperature-resistant and salt-resistant fluid loss additive and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Take 20 parts of acrylic fiber waste silk and 16 parts of plant fiber in the reactor, prepare 16 parts of sodium hydroxide and 120 parts of water to make lye of corresponding concentration, add it into the reactor and stir evenly, heat up to 100-150°C and react for 2 hours After a period of time, add 6 parts of sulfomethylphenol-formaldehyde resin, stir evenly, and then raise the temperature to 100-150°C for 1 hour. Dry and pulverize the reacted mixture to 40-80 mesh powder.

Embodiment 2

[0049] Take 10 parts of acrylic waste silk and 10 parts of plant fiber in the reactor, prepare 7 parts of sodium hydroxide and 60 parts of water to make lye of corresponding concentration, add it into the reactor and stir evenly, heat up to 100-150°C and react for 2 hours After a period of time, add 6 parts of sulfomethylphenol-formaldehyde resin, stir evenly, and then raise the temperature to 100-150°C for 1 hour. Dry and pulverize the reacted mixture to 40-80 mesh powder.

Embodiment 3

[0051] Take 15 parts of acrylic waste silk and 13 parts of plant fiber in the reactor, prepare 10 parts of sodium hydroxide and 100 parts of water to make lye with corresponding concentration, add it into the reactor and stir evenly, heat up to 100-150°C and react for 2 hours After a period of time, add 10 parts of sulfomethylphenol-formaldehyde resin, stir evenly, and heat up to 100-150°C for 1 hour. Dry and pulverize the reacted mixture to 40-80 mesh powder.

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Abstract

The invention relates to a solid powdery high temperature-resistant fluid loss additive for drilling fluid and a preparation method thereof. The high temperature-resistant fluid loss additive comprises the following components in parts by weight: 5-18 parts of sulfomethylation phenolic resin, 50-100 parts of water, 10-30 parts of acrylic fiber, 5-25 parts of plant fiber and 3-20 parts of sodium hydroxide. According to the high temperature-resistant fluid loss additive provided by the invention, cohydrolysis is directly performed on the plant fiber and the acrylic fiber, the insolubility, the softness and the toughness of cellulose are retained, and the sulfomethylation phenolic resin is simultaneously grafted to enable the fluid loss control effect and the temperature-resistant effect to be more significant.

Description

technical field [0001] The invention relates to a solid powder anti-high temperature fluid loss reducer for drilling fluid and a preparation method thereof. Background technique [0002] Drilling fluid is one of the most used oilfield chemicals, and fluid loss control agent is a very important additive in drilling fluid. Excessive drilling fluid fluid loss will not only lead to the loss of drilling fluid, but also lead to serious consequences such as borehole wall collapse and reservoir pollution. The addition of fluid loss reducer can significantly reduce the fluid loss of drilling fluid, maintain a stable well wall, and make drilling fast and safe. As the drilling depth gets deeper and the drilling bottom layer becomes more and more complex, higher requirements are placed on the drilling fluid, which requires the drilling fluid treatment agent to have corresponding functions, especially the performance of temperature resistance and salt resistance. [0003] The fluid los...

Claims

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Application Information

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IPC IPC(8): C09K8/035
CPCC09K8/035C09K2208/04C09K2208/08
Inventor 张兰英许一妮李子成姜慧芸
Owner 濮阳市诚信钻采助剂有限公司
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