Preparation method of resin filtrate reducer

The technology of a fluid loss reducer and a preparation method, which is applied in the directions of chemical instruments and methods, drilling compositions, etc., can solve the problems of unstable adsorption, low utilization rate of the treatment agent, and poor treatment effect, so as to improve the product Safety, improvement of relevant performance indicators, and the effect of less dosage

Inactive Publication Date: 2019-06-21
广汉恒奕石油技术开发有限责任公司
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Problems solved by technology

[0003] However, the sulfomethyl phenolic resin in drilling fluid is mainly adsorbed on the surface of clay particles by van der Waals force, the heat of adsorption is small, and the adsorption capacity is small. become worse
Under the condition of high temperature, the utilization rate of the treatment agent is low, the dosage is large, and the material waste is large

Method used

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  • Preparation method of resin filtrate reducer
  • Preparation method of resin filtrate reducer
  • Preparation method of resin filtrate reducer

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Embodiment Construction

[0027] To make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Apparently, the described embodiments are some of the embodiments of the present disclosure, not all of them. Based on the described embodiments of the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without creative effort fall within the protection scope of the present disclosure.

[0028] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure shall have the usual meanings understood by those skilled in the art to which the present disclosure belongs. The words "comprising" or "comprising" and similar words used in the present disclosure mean that the elements or things appearing befor...

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Abstract

The invention relates to the technical field of filtrate reducers and discloses a preparation method of a resin filtrate reducer. The resin filtrate reducer comprises the following raw materials by weight percentage: 27%-33% of phenol, 47%-55% of formaldehyde, 10%-14% of sodium metabisulphite, 5%-10% of sodium sulfite, 0.5%-0.8% of propanesulfonic acid-based monomers and 0.3%-0.5% of a high temperature stabilizer. The resin filtrate reducer prepared with the preparation method is strong in temperature resistance; the resin filtrate reducer can resist saturated salt and compound salt in a drilling fluid system at the temperature of 220 DEG C, the product is strong in salt resistance, the resin filtrate reducer can still give play to excellent filtrate loss reduction performance in various complex conditions of saline, sylvite, calcium salt and the like, relevant performance indexes of drilling fluid can be greatly improved, the product is safe and environmentally-friendly and suitable for drilling fluid of various environmental protection systems under a new situation. Integrally, the product disclosed by the invention has the advantages of being strong in temperature resistance, good in filtrate loss reduction effect, less in dosage, small in influence on rheological property in the drilling fluid and the like.

Description

technical field [0001] The invention relates to the technical field of fluid loss control agents, in particular to a preparation method of resin fluid loss control agents. Background technique [0002] As one of the main fluid loss reducers for drilling fluids, sulfomethyl phenolic resin has been widely used in drilling operations since the 1970s. The product has stable performance, wide application range and good filtration loss reduction effect, especially plays an important role in high temperature, high pressure and deep well drilling. [0003] However, the sulfomethyl phenolic resin in drilling fluid is mainly adsorbed on the surface of clay particles by van der Waals force, the heat of adsorption is small, and the adsorption capacity is small. worse. Under the condition of high temperature, the utilization rate of the treatment agent is low, the dosage is large, and the material waste is large. In the drilling fluid system with high temperature and salt resistance, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G8/28C08G8/32C09K8/035
Inventor 刘林杨永禄王裕艾高强
Owner 广汉恒奕石油技术开发有限责任公司
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