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Ultralow-density petroleum fracturing propping agent and preparation method thereof

A fracturing proppant and ultra-low density technology, which is applied in chemical instruments and methods, earthwork drilling, mining fluids, etc., can solve the problems of weak flow conductivity, low strength, poor corrosion resistance, etc., and achieve flow conductivity Strong, high-strength, and yield-increasing effects

Inactive Publication Date: 2016-05-11
沁源县元昌特材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problems of low strength, poor corrosion resistance and weak flow conductivity of the existing petroleum fracturing proppant, and to provide an ultra-low density petroleum fracturing proppant and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A kind of ultra-low density petroleum fracturing proppant in the present embodiment, it is made of the following raw materials by weight: 70 parts of bauxite, 6 parts of fly ash, 3 parts of manganese, 8 parts of clay and 2 parts of dolomite parts, the bauxite is waste bauxite tailings.

[0017] A method for preparing the ultra-low density petroleum fracturing proppant described in this embodiment, it is made by the following steps:

[0018] 1) Crushing: send the bauxite tailings, fly ash, manganese, clay and dolomite into the crushing system for crushing, and put the bauxite tailings and leftovers, fly ash, manganese, clay and dolomite Broken into particles with a particle size of ≤8mm;

[0019] 2) Grinding: the bauxite tailings of 70 parts, 6 parts of fly ash, 3 parts of manganese, 8 parts of clay and 2 parts of dolomite particles are mixed evenly and sent into the ball mill Grinding and drying to make raw meal powder;

[0020] 3) Ball making: Feed the raw meal powd...

Embodiment 2

[0030] A kind of ultra-low density petroleum fracturing proppant in the present embodiment, it is made of the following raw materials by weight: 80 parts of bauxite, 10 parts of fly ash, 6 parts of manganese, 10 parts of clay and 4 parts of dolomite parts, the bauxite is waste bauxite tailings.

[0031] A method for preparing the ultra-low density petroleum fracturing proppant described in this embodiment, it is made by the following steps:

[0032] 1) Crushing: send the bauxite tailings, fly ash, manganese, clay and dolomite into the crushing system for crushing, and put the bauxite tailings and leftovers, fly ash, manganese, clay and dolomite Broken into particles with a particle size of ≤8mm;

[0033] 2) Grinding: the bauxite tailings of 80 parts, 10 parts of fly ash, 6 parts of manganese, 10 parts of clay and 4 parts of dolomite particles are mixed evenly and sent into the ball mill Grinding and drying to make raw meal powder;

[0034] 3) Ball making: Feed the raw meal ...

Embodiment 3

[0044] A kind of ultra-low density petroleum fracturing proppant in the present embodiment, it is made by the raw material of following parts by weight: 75 parts of bauxite, 8 parts of fly ash, 5 parts of manganese, 9 parts of clay and 3 parts of dolomite parts, the bauxite is waste bauxite tailings.

[0045] A method for preparing the ultra-low density petroleum fracturing proppant described in this embodiment, it is made by the following steps:

[0046] 1) Crushing: send the bauxite tailings, fly ash, manganese, clay and dolomite into the crushing system for crushing, and put the bauxite tailings and leftovers, fly ash, manganese, clay and dolomite Broken into particles with a particle size of ≤8mm;

[0047] 2) Grinding: the bauxite tailings of 75 parts, 8 parts of fly ash, 5 parts of manganese, 9 parts of clay and 3 parts of dolomite particles are mixed evenly and sent into the ball mill Grinding and drying to make raw meal powder;

[0048] 3) Ball making: Feed the raw m...

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Abstract

The invention belongs to the technical field of petroleum fracturing propping agents and preparation methods thereof, and particularly relates to an ultralow-density petroleum fracturing propping agent and a preparation method thereof. The technical problems that an existing petroleum fracturing propping agent is low in strength, poor in anti-corrosion capacity and weak in flow guiding capacity are mainly solved. The ultralow-density petroleum fracturing propping agent is prepared by taking multiple raw materials such as bauxite waste tailings, leftover materials and manganese powder as raw materials through multiple processes such as breaking, grinding, granulating and high-temperature sintering and has the advantages of resisting high temperature and high pressure, being high in strength and flow guiding capacity, resisting corrosion and the like.

Description

technical field [0001] The invention belongs to the technical field of petroleum fracturing proppant and its preparation method, and in particular relates to an ultra-low density petroleum fracturing proppant and its preparation method. Background technique [0002] During oil and gas 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 cracks. At this time, it is necessary to inject oil fracturing proppant into the rock base , with a pressure exceeding the fracture strength of the formation, cracks are formed in the rock formation around the wellbore, forming a channel with high-level flow capability. In order to keep the fractures formed after fracturing open and oil and gas products to pass through smoothly, the market has high requirements for the roundness, sphericity, turbidity, conductivity and acid resist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/80
CPCC09K8/80
Inventor 董庆国董颖裴耀红崔丽芳王勇
Owner 沁源县元昌特材有限公司
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