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Self-suspension type propping agent

A proppant, self-suspending technology, applied in the direction of production fluid, wellbore/well components, drilling composition, etc., can solve problems such as increased cost

Inactive Publication Date: 2018-12-07
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 self-suspending proppant to solve the problem that the cost of the proppant needs to be increased by adding a gelling agent when used in clean water

Method used

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  • Self-suspension type propping agent

Examples

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Effect test

Embodiment 1

[0038] Take the apparent density as 1.1g / cm 3 100 parts of ceramsite and quartz sand with a particle size of 20 / 40, heated to 180°C, pour the heated ceramsite and quartz sand into a bowl-shaped mixing casserole and stir, and add 1 part of epoxy resin after the temperature reaches 170-180°C Stir the resin and 0.25 parts of curing agent T31, add 5 parts of propylene glycol polymer and 0.01 part of dibutyltin dilaurate after the temperature reaches 110-130 ° C, add 0.005 parts of diethylene triamine and Stir the mixture of ethylenediamine, add 3.5 parts of isocyanate and stir when the temperature reaches 80-110°C, and take out the pot when the temperature reaches 40-70°C.

Embodiment 2

[0040] Take the apparent density as 1.6g / cm 3 , The particle size is 30 / 50 ceramsite and quartz sand, a total of 100 parts, heat the mixture of ceramsite and quartz sand to 200 ° C, pour it into a bowl-shaped mixing casserole, and add 5 parts of phenolic formaldehyde when the temperature reaches 180-190 ° C Stir the resin, when the temperature reaches 160-170°C, add 1.5 parts of hexamethylenetetramine and stir, when the temperature reaches 100-120°C, add 4 parts of ethylene glycol polymer and stir, when the temperature reaches 80-100°C Add 0.04 parts of dibutyltin dilaurate and stir, add 2.3 parts of isocyanate when the temperature reaches 80-100°C and stir, and take out the pot when the temperature reaches 40-70°C.

Embodiment 3

[0042] Take the apparent density as 2.2g / cm 3 100 parts of ceramsite and quartz sand with a particle size of 40 / 70. Heat the mixture of ceramsite and quartz sand to 230°C and pour it into a bowl-shaped mixing casserole. After the temperature reaches 190-230°C, add 6 parts of epoxy Stir the ester resin, add 2.7 parts of curing agent T31 when the temperature reaches 160-170°C and stir, add 3 parts of ethylene glycol polymer and stir when the temperature reaches 160-170°C, add Stir 0.03 parts of dibutyltin dilaurate, add 0.6 parts of ethylamine and stir when the temperature reaches 100-110°C, add 2 parts of diphenyl diisocyanate and stir when the temperature reaches 80-100°C, and stir when the temperature reaches 40-70 Take out the pot between ℃.

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Abstract

The invention belongs to the technical field of exploitation of fluid ores including petroleum, natural gas, shale gas and the like and in particular discloses a self-suspension type propping agent. The self-suspension type propping agent is prepared from aggregate and a coating layer, wherein the coating layer is prepared from resin, a curing agent and an additive; the aggregate is composed of ceramsite and quartz sand, which have the apparent density of 1.1 to 2.65g / cm<3>; and the additive is an amine type compound. The self-suspension type propping agent is mainly used for exploiting the petroleum and the shale gas; and the problems that a gelatinizing agent needs to be added when the propping agent is used in clean water so that cost increasing and environment pollution are caused aresolved.

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 self-suspending 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 s...

Claims

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Application Information

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IPC IPC(8): C09K8/80C08G18/58C08G18/54C08G18/48
CPCC08G18/4825C08G18/4833C08G18/542C08G18/58C09K8/805
Inventor 熊帆熊鹰王正力陈秋庆
Owner CHONGQING CHANGJIANG RIVER MOLDING MATERIAL GRP
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