Preparation method of heat-resisting filtrate reducer

A fluid loss reducing agent and heat-resistant technology, applied in chemical instruments and methods, drilling compositions, etc., can solve the problems of poor fluid loss control and heat resistance, and achieve improved heat resistance and good thermal conductivity. The effect of improving performance and thermal conductivity

Inactive Publication Date: 2018-06-08
周益铭
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The main technical problem to be solved by the present invention is to provide a preparation method of a heat-resistant fluid loss control agent for the traditional fluid loss control agent with poor fluid loss performance and heat resistance.

Method used

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  • Preparation method of heat-resisting filtrate reducer

Examples

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example 1

[0023]Mix phenol and formaldehyde in a beaker at a mass ratio of 4:2, adjust the pH in the beaker to 8 with a sodium hydroxide solution with a mass fraction of 8%, and then move the beaker into a digital constant temperature magnetic stirrer at a temperature of After stirring and reacting for 50 minutes at 100°C with a rotation speed of 350r / min, a mixed solution was obtained. Mix the mixed solution and formaldehyde at a mass ratio of 8:2, and add 0.3 times the mass of the mixed solution to the mixture of the mixed solution and formaldehyde in turn. Sodium sulfite, dimethylamine 0.3 times the mass of the mixed solution and 1-bromobutane 0.4 times the mass of the mixed solution were stirred and mixed for 5 hours at a temperature of 85°C and a rotational speed of 330r / min to obtain an amphoteric sulfonated phenolic resin blank , the amphoteric sulfonated phenolic resin blank was washed with deionized water for 8 times, and the washed amphoteric sulfonated phenolic resin blank was...

example 2

[0025] Mix phenol and formaldehyde in a beaker at a mass ratio of 4:2, adjust the pH in the beaker to 8 with a sodium hydroxide solution with a mass fraction of 8%, and then move the beaker into a digital constant temperature magnetic stirrer at a temperature of After stirring and reacting for 50 minutes at 100°C with a rotation speed of 350r / min, a mixed solution was obtained. Mix the mixed solution and formaldehyde at a mass ratio of 8:2, and add 0.3 times the mass of the mixed solution to the mixture of the mixed solution and formaldehyde in turn. Sodium sulfite, dimethylamine 0.3 times the mass of the mixed solution and 1-bromobutane 0.4 times the mass of the mixed solution were stirred and mixed for 5 hours at a temperature of 85°C and a rotational speed of 330r / min to obtain an amphoteric sulfonated phenolic resin blank , the amphoteric sulfonated phenolic resin blank was washed with deionized water for 8 times, and the washed amphoteric sulfonated phenolic resin blank wa...

example 3

[0027] Mix phenol and formaldehyde in a beaker at a mass ratio of 4:2, adjust the pH in the beaker to 8 with a sodium hydroxide solution with a mass fraction of 8%, and then move the beaker into a digital constant temperature magnetic stirrer at a temperature of After stirring and reacting for 50 minutes at 100°C with a rotation speed of 350r / min, a mixed solution was obtained. Mix the mixed solution and formaldehyde at a mass ratio of 8:2, and add 0.3 times the mass of the mixed solution to the mixture of the mixed solution and formaldehyde in turn. Sodium sulfite, dimethylamine 0.3 times the mass of the mixed solution and 1-bromobutane 0.4 times the mass of the mixed solution were stirred and mixed for 5 hours at a temperature of 85°C and a rotational speed of 330r / min to obtain an amphoteric sulfonated phenolic resin blank , the amphoteric sulfonated phenolic resin blank was washed with deionized water for 8 times, and the washed amphoteric sulfonated phenolic resin blank wa...

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Abstract

The invention discloses a preparation method of a heat-resisting filtrate reducer and belongs to the technical field of oil well treating agents. The preparation method comprises the following steps:mixing ampholytic sulfonated phenol formaldehyde resin with polyurethane dispersion in a mixer according to the mass ratio ranging from 3:2 to 3:1, adding modified graphene oxide the mass of which is0.2 to 0.3 time that of the ampholytic sulfonated phenol formaldehyde resin and a dispersing agent the mass of which is 0.06 to 0.12 time that of the ampholytic sulfonated phenol formaldehyde resin; under the conditions that the temperature is 45 to 65 DEG C and the rotating speed is 250 to 300 r / min, stirring and mixing for 10 to 20 minutes, thus obtaining the heat-resisting filtrate reducer. Theheat-resisting filtrate reducer prepared according to a technical scheme provided by the invention has the characteristics of excellent filtration reducing property and heat resistance.

Description

technical field [0001] The invention discloses a preparation method of a heat-resistant fluid loss reducer, which belongs to the technical field of oil well treatment agents. Background technique [0002] The main components of oilfield drilling mud are common soil and water, and various auxiliary chemical additives. In the process of continuous drilling, the phenomenon of water infiltrating into the formation is called dehydration. Excessive water loss per unit time will bring a series of adverse consequences: the collapse of the well wall, the shrinkage of the well diameter and the thickening of drilling fluid, etc., resulting in pipe sticking Wait for the occurrence of a vicious accident. The fluid loss control agent contains adsorption groups and hydration groups that can adsorb with clay, which can change the properties of the mud cake on the wall of the well: the treatment agent adsorbs on the surface of large clay particles to form a protective film, and the fine cla...

Claims

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Application Information

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IPC IPC(8): C09K8/035C09K8/03C08G18/75C08G18/66C08G18/48C08G18/34C08G18/32C08G18/10C08G8/28
CPCC09K8/035C08G8/28C08G18/10C08G18/3206C08G18/348C08G18/48C08G18/6692C08G18/755C09K8/032
Inventor 周益铭肖曦黄浩
Owner 周益铭
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