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Foamless modified sulfonated phenolic resin for drilling fluid and preparation method thereof

A technology of sulfonated phenolic resin and drilling fluid, which is applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve the problems of reduced use efficiency and poor inhibition, and achieve convenient use, cost saving, and dissolution and dispersion speed fast effect

Active Publication Date: 2020-06-09
新乡市振华钻井液材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of non-foaming modified sulfonated phenolic resin for drilling fluid and its preparation method, to solve the problem of using sulfonated phenolic resin as drilling fluid fluid loss reducer in the prior art, when there is a large amount of foam in the drilling fluid When it is used, its use efficiency is reduced, and the technical problem of inhibition becomes worse

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  • Foamless modified sulfonated phenolic resin for drilling fluid and preparation method thereof

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preparation example Construction

[0019] The present invention also provides a method for preparing a non-foaming modified sulfonated phenolic resin for drilling fluid, comprising the following steps:

[0020] (1) take each raw material by weight ratio;

[0021] (2) Put the phenolic aldehyde and formaldehyde in the reactor and mix them evenly, then dissolve the sodium metabisulfite and anhydrous sodium sulfite with water and slowly inject them into the reactor, gradually raise the temperature of the reactor to 100°C for sulfonation reaction;

[0022] (3) Add nonylphenol polyoxyethylene ether and / or octylphenol polyoxyethylene ether to the reactor, and continue the reaction at 100°C;

[0023] (4) Heating is stopped, the temperature of the reactor is lowered to below 40° C., and then the material is discharged. The liquid product is spray-dried to obtain a solid product, and then the solid product is packed into bags.

[0024] Preferably, the reaction time in the step (2) is 1 hour, and the reaction time in the...

Embodiment 1

[0026] A kind of non-foaming modified sulfonated phenolic resin for drilling fluid, the raw material of described modified sulfonated phenolic resin comprises 110 parts of phenolic formaldehyde, 50 parts of formaldehyde, 80 parts of sodium metabisulfite, 45 parts of anhydrous sodium sulfite, A total of 60 parts of nonylphenol polyoxyethylene ether and octylphenol polyoxyethylene ether, and 30 parts of water.

[0027] Phenolic aldehyde is a foam of phenol and formaldehyde, which has the characteristics of heat resistance, friction resistance, high mechanical strength, electrical insulation, low smoke emission and acid resistance. Sodium metabisulfite dissolves in water to release sulfur dioxide, and sulfur dioxide, anhydrous sodium sulfite and formaldehyde are used as sulfonating agents. The amount of formaldehyde added is excessive, and the excessive formaldehyde and the sulfonated phenolic novolac continue to undergo polycondensation reaction, making the sulfonated phenolic n...

Embodiment 2

[0035] A kind of non-foaming modified sulfonated phenolic resin for drilling fluid, the raw material of described modified sulfonated phenolic resin comprises 130 parts of phenolic aldehyde, 70 parts of formaldehyde, 110 parts of sodium metabisulfite, 70 parts of anhydrous sodium sulfite, 90 parts of nonylphenol polyoxyethylene ether, 60 parts of water.

[0036] The preparation method of the above-mentioned non-foaming modified sulfonated phenolic resin for drilling fluid comprises the following steps:

[0037] (1) take each raw material by weight ratio;

[0038] (2) Put phenolic aldehyde and formaldehyde in the reactor and mix evenly, then dissolve sodium metabisulfite and anhydrous sodium sulfite with water and slowly inject into the reactor, gradually raise the temperature of the reactor to 100°C and heat and reflux for 1 hour to carry out the sulfonation reaction ;

[0039] (3) Add nonylphenol polyoxyethylene ether into the reaction kettle, continue to heat and reflux at...

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Abstract

The invention relates to a foamless modified sulfonated phenolic resin for drilling fluid and a preparation method thereof. The invention belongs to the technical field of sulfonated phenolic resin. The foamless modified sulfonated phenolic resin is prepared from the following raw materials in parts by weight: 110 to 130 parts of phenol aldehyde, 50 to 70 parts of formaldehyde, 80 to 110 parts ofsodium pyrosulfite, 45 to 70 parts of anhydrous sodium sulfite, 60 to 90 parts of nonylphenol polyoxyethylene ether and / or octylphenol polyoxyethylene ether and 30 to 60 parts of water. Sulfonated phenolic resin is modified, nonylphenol / octylphenol polyoxyethylene ether is added, alcohol hydroxyl at the tail end of a long chain of nonylphenol / octylphenol polyoxyethylene ether and hydrogen atoms onpara-position of phenolic hydroxyl on sulfonated phenolic resin are subjected to condensation polymerization to obtain a new polymer, and the new polymer contains polyether functional groups, so thatthe new polymer has a certain defoaming function in addition to salt resistance and filtrate loss reduction, has no influence on other properties of the drilling fluid, and is small in dosage and convenient to use.

Description

technical field [0001] The invention belongs to the technical field of sulfonated phenolic resins, in particular to a non-foaming modified sulfonated phenolic resin for drilling fluid and a preparation method thereof. Background technique [0002] Sulfonated phenolic resin is a water-soluble cation exchange resin. As the most commonly used synthetic resin drilling fluid fluid loss control agent, it has good mechanical strength, good heat resistance, good salt resistance, and fluid loss reduction. The effect is good, and at the same time, it has the functions of preventing collapse and controlling viscosity, so it has been widely studied and applied. [0003] During the drilling process, the gas in the formation invades the drilling fluid, which will cause a large amount of foam in the drilling fluid. In addition, the materials used to prepare the drilling fluid often contain foaming materials such as surfactants. Bubble. Foam has various adverse effects on drilling operati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G8/28C09K8/035
CPCC08G8/28C09K8/035Y02P20/141
Inventor 周瑜葛赵录亮周庆丰
Owner 新乡市振华钻井液材料有限公司
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