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Suspension supporting agent

A technology of proppant and catalyst, which is applied in the direction of production fluid, wellbore/well components, drilling composition, etc., and can solve problems such as environmental pollution and cost increase

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 object of the present invention is to provide a suspension proppant to solve the problem that the proppant needs to be added with a gelling agent when used in clear water, which leads to increased costs and environmental pollution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 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

[0038] 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

[0040] 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 fluid ore exploitation of petroleum, natural gas, shale gas and the like, and particularly discloses a suspension supporting agent. The suspension supporting agent comprises aggregates and a coating layer, wherein the coating layer comprises resin, a catalyst, a curing agent and an additive, and the suspension supporting agent is characterized in that the aggregates are quartz sand, the additive is an amines compound, the coating layer comprises an inner coating layer and an outer coating layer, the outer coating layer is prepared from polyalcohol resin, isocyanate and a catalyst, the amines compound is added into the outer coating layer, the isocyanate is 40 to 70 percent of the polyalcohol resin, and the hydroxyl equivalent amount of the polyalcohol resin is 60 to 300. The suspension supporting agent is mainly used for exploiting petroleum and shale gas, and solves the problems of the supporting agent used in clean water that the cost is increased due to the use of a cementing agent and the environment is polluted.

Description

technical field [0001] The invention belongs to the technical field of fluid mineral exploitation such as oil, natural gas and shale gas, and specifically discloses 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 sustai...

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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