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A kind of fracturing proppant and preparation method thereof

A fracturing proppant and curing agent technology, applied in the field of fracturing proppant, can solve the problems of easy migration of ceramsite, poor conductivity, and high breakage rate of ceramsite and quartz sand

Inactive Publication Date: 2015-11-18
ELION RESOURCE GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the breakage rate of ceramsite and quartz sand is high, and the crushed ceramsite in the reservoir is easy to migrate, and the conductivity is poor

Method used

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  • A kind of fracturing proppant and preparation method thereof

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preparation example Construction

[0008] The preparation method of the fracturing proppant provided by the present invention comprises uniformly mixing and curing aggregate particles, epoxy resin and curing agent, wherein the curing agent is a curing agent composition containing an acid anhydride curing agent and an amine curing agent, And based on the total weight of the curing agent composition, the content of the acid anhydride curing agent is 80-99.8% by weight, and the content of the amine curing agent is 0.2-20% by weight.

[0009] According to the present invention, although the content of the acid anhydride curing agent and the amine curing agent can be controlled within the above range, the obtained fracturing proppant can have a lower fragmentation rate and a higher flow conductivity, but in order to make the obtained The fracturing proppant has more excellent comprehensive properties. Preferably, based on the total weight of the curing agent composition, the content of the anhydride curing agent is 9...

Embodiment 1

[0028] This embodiment is used to illustrate the curing agent composition provided by the present invention and its preparation method and application.

[0029] 40 parts by weight of tetrahydrophthalic anhydride curing agent and 1 part by weight of diethylenetriamine curing agent were uniformly mixed to obtain curing agent composition G1.

[0030] In the preparation process of the fracturing proppant, the dosages of each substance were: 2kg raw sand, 0.1kg epoxy resin (commercially purchased from Langfang Nuoerxin Chemical Co., Ltd., brand E-44, epoxy value 0.44mol / 100g ), 0.041kg curing agent composition G1.

[0031] At room temperature of 25°C, divide the curing agent composition into 2 parts of equal mass, divide the epoxy resin into 3 parts of equal mass, put the raw sand into the sand mixer, start stirring, first add 1 part of epoxy resin, After stirring for 1 minute, add 1 part of curing agent composition and mix evenly, then add epoxy resin in sequence according to the...

Embodiment 2

[0033] This embodiment is used to illustrate the curing agent composition provided by the present invention and its preparation method and application.

[0034] 40 parts by weight of phthalic anhydride curing agent and 2 parts by weight of ethylenediamine curing agent were uniformly mixed to obtain curing agent composition G2.

[0035] In the preparation process of the fracturing proppant, the dosages of each substance were: 2kg ceramsite, 0.1kg epoxy resin (commercially purchased from Langfang Nuoerxin Chemical Co., Ltd., the brand is E-44, and the epoxy value is 0.44mol / 100g ), 0.042kg curing agent composition G2.

[0036] At room temperature 25°C, divide the curing agent composition into 2 parts of equal mass, divide the epoxy resin into 2 parts of equal mass, put the ceramsite into the sand mixer, start stirring, and add 1 part of epoxy resin first, After stirring for 1 minute, add 1 part of curing agent composition and mix evenly, then add epoxy resin sequentially accord...

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Abstract

The invention provides a fracturing propping agent preparation method, and a fracturing propping agent prepared through the method. The fracturing propping agent preparation method is characterized in that aggregate particles, an epoxy resin and a curing agent are uniformly mixed to cure the aggregate particles and the epoxy resin; and the curing agent is a curing agent composition containing 80-99.8wt% of an anhydride curing agent and 0.2-20wt% of an amine curing agent. The fracturing propping agent prepared by adopting the method has a low breakage rate and a high diversion capability.

Description

technical field [0001] The invention relates to a preparation method of a fracturing proppant and a fracturing proppant prepared by the method. Background technique [0002] In the process of oil and natural gas deep well mining and ultra-deep well mining, after high closure pressure and low permeability deposits are treated by fracturing, the oil and gas-bearing rock formations are cracked, and oil and gas are collected from the channels formed by the fractures. The fracturing proppant is accompanied by The high-pressure solution enters the formation and fills in the fractures of the rock formation, which plays a role in supporting the fractures from closing due to stress release, thereby maintaining high conductivity, making oil and gas flow unimpeded, and increasing oil and gas production. Therefore, the fracturing proppant needs to have a certain strength and conductivity to meet the closure stress requirements of formations at different depths. [0003] The existing fr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/80
Inventor 高双之陈步宁顾卫荣周玉生王建伟刘珊仲晓东
Owner ELION RESOURCE GROUP
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