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Preparation method of suspension proppant

A proppant, self-suspension technology, applied in chemical instruments and methods, earthwork drilling, drilling composition, etc., can solve the problems of environmental pollution, cost increase, etc., achieve short process time, low equipment and energy consumption, cost reduction effect

Inactive Publication Date: 2018-12-18
CHONGQING CHANGJIANG RIVER MOLDING MATERIAL GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a preparation method for suspending proppant, so that the use of proppant in clear water requires the addition of gelling agent, resulting in increased cost and environmental pollution.

Method used

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  • Preparation method of suspension proppant
  • Preparation method of suspension proppant
  • Preparation method of suspension proppant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Take 100 parts of quartz sand with a particle size of 20 / 40, heat it to 180°C, pour the heated quartz sand into a bowl-shaped mixing casserole, add 0.5 parts of epoxy resin, 0.05 parts and 0.1 curing agent T31 and stir until the temperature reaches 160 After -170°C, add 5 parts of propylene glycol polymer and 0.05 parts of dibutyltin dilaurate and stir, and when the temperature reaches 140-150°C, add 0.005 parts of a mixture of diethylenetriamine and ethylenediamine and stir until the temperature reaches 100-120 ℃, add 3.5 parts of toluene diisocyanate and stir, and take out of the pot after the temperature reaches 80 ℃.

Embodiment 2

[0046] Take 100 parts of quartz sand with a particle size of 30 / 50, heat it to 230°C, pour the heated quartz sand into a bowl-shaped mixing casserole, add 5 parts of phenolic resin and 1.5 parts of hexamethylenetetramine and stir until the temperature reaches 190 After -200°C, add 3 parts of ethylene glycol polymer and 0.003 parts of dibutyltin dilaurate and stir, and when the temperature reaches 160-170°C, add 0.45 parts of a mixture of triethylamine and triethylenetetramine and stir until the temperature reaches 140 After -150°C, add 2.1 parts of methylene diphenyl diisocyanate and stir, and take out of the pot after the temperature reaches 90°C.

Embodiment 3

[0048] Take 100 parts of quartz sand with a particle size of 40 / 70, heat it to 190°C, pour the heated quartz sand into a bowl-shaped mixing casserole, add 6 parts of epoxy ester resin and 2.5 parts of curing agent 31 and stir until the temperature reaches 160- After 170℃, add 2 parts of ethylene glycol polymer and 0.02 parts of dibutyltin dilaurate and stir. After the temperature reaches 140-150℃, add 0.2 parts of ethylamine and stir. After the temperature reaches 110-120℃, add 1.4 parts of isofor Stir with ketone diisocyanate, and take it out of the pot after the temperature reaches 80°C.

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Abstract

The invention belongs to the technical field of oil and gas field development, and concretely discloses a preparation method of a suspension proppant. The preparation method comprises the following steps that (1) quartz sand is heated to 80 to 230 DEG C; stirring is performed at the rotating speed of 70 to 100r / min; (2) when the temperature reaches 150 to 230 DEG, resin and a curing agent are added into the quartz sand obtained in the step (1); stirring is performed to form an inner coating layer; (3) when the temperature reaches 80 to 130 DEG C, polyhydric alcohol type resin, catalysts, isocyanate and amine additives are added into the mixture obtained in the step (2); stirring is performed to form an outer coating layer; (4) when the temperature reaches 40 to 90 DEG C, pot discharging isperformed; the suspension proppant is obtained. The preparation method is mainly used for preparing the self-suspension proppant; the problems that when the proppant is used in clear water, gelatinizing agents need to be added, so that the cost is increased, and the environment pollution is caused are solved.

Description

technical field [0001] The invention belongs to the technical field of oil and gas field exploitation, and specifically discloses a preparation method of a suspension proppant. Background technique [0002] The innovation and development of conventional and unconventional oil and gas exploitation technologies in modern times have formed a normal technical specification for systematic hydraulic fracturing. The base mixed liquid is sent into the ground to create a variety of fractures of different sizes, widely distributed, and deep into the reservoir, and the obtained reservoir fractures are kept in an unclosed state to bring about the interconnection of the reservoir and the production pipeline to achieve the goal of reservoir stimulation. A technology system for increasing production. As a crucial technical method in this technical system, when the obtained reservoir fractures remain unclosed, it is necessary to fill the fractures with a proppant that can sustainably maint...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/80
CPCC09K8/805
Inventor 熊帆熊鹰王正力陈秋庆
Owner CHONGQING CHANGJIANG RIVER MOLDING MATERIAL GRP
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