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Fracturing propping agent and preparation method thereof

A fracturing proppant and proppant technology, applied in chemical instruments and methods, earthwork drilling, clay products, etc., can solve the problems of expensive raw materials, high production cost, low cost performance, etc., and achieve low crushing rate and material cost. The effect of reducing and improving cost performance

Inactive Publication Date: 2017-07-21
ZHENGZHOU RUNBAO REFRACTORY MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The first purpose of the present invention is to provide a fracturing proppant to alleviate the technical problems of expensive raw materials, high production costs, high energy consumption and low cost performance in the prior art for preparing fracturing proppant

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  • Fracturing propping agent and preparation method thereof

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preparation example Construction

[0067] The fracturing proppant prepared by the preparation method provided by the invention has the advantages of low bulk density, low apparent density, low fragmentation rate, etc., and is convenient for fracturing construction in oil and gas exploitation. The low bulk density facilitates the portability of the proppant and reduces the cost of fracturing fluid preparation. In addition, the designed amount of proppant for fracturing construction is based on square meters, and the low volume density also reduces the unit dosage of proppant, thereby reducing the cost of fracturing construction.

[0068] In a preferred embodiment of the present invention, after the raw materials are ball-milled, the ball-milled powder is passed through a 350-450 mesh sieve, and then granulated.

[0069] In a preferred embodiment of the present invention, the granulation is carried out by water atomization in the spheronizer.

[0070] In a preferred embodiment of the present invention, spherical...

Embodiment 1

[0082] The proportioning of each raw material of the shale rock in the present embodiment is:

[0083] Shale 60%

[0084] Bauxite proppant waste 25%

[0085] Potassium feldspar 15%.

[0086] The above proportioned fracturing proppant is prepared by the following method:

[0087] Step a): Ball milling: crush the shale rock, bauxite proppant waste and potassium feldspar into 30-50mm particles through the jaw crusher, put them into the batching bin respectively, and set the batching ratio of each bin according to different ratios. Ratio, each warehouse is fed to the ball mill according to the set ratio for ball milling, and after ball milling, it passes through a 350-mesh sieve to obtain powder;

[0088] Step b): Granulation: Send the sieved powder to the pelletizing machine, atomize the water and add to the pelletizing machine, add powder while adding water until the pellets reach the required particle size, and then pass through the drum sieve Spherical particles of 0.212-0...

Embodiment 2

[0091] The proportioning of each raw material of the shale rock in the present embodiment is:

[0092] Shale 68%

[0093] Bauxite proppant waste 20%

[0094] Potassium feldspar 12%.

[0095] The above proportioned fracturing proppant is prepared by the following method:

[0096] Step a): Ball milling: crush the shale rock, bauxite proppant waste and potassium feldspar into 30-50mm particles through the jaw crusher, put them into the batching bin respectively, and set the batching ratio of each bin according to different ratios. Ratio, each warehouse is fed to the ball mill according to the set ratio for ball milling, and after ball milling, it passes through a 400-mesh sieve to obtain powder;

[0097] Step b): Granulation: Send the sieved powder to the pelletizing machine, atomize the water and add to the pelletizing machine, add powder while adding water until the pellets reach the required particle size, and then pass through the drum sieve Spherical particles of 0.212-0...

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Abstract

The invention provides a fracturing propping agent and a preparation method thereof, and relates to the field of petroleum and gas exploration materials. The fracturing propping agent is mainly prepared from the following raw materials in percentage by mass: 60-75% of shale, 10-25% of bauxite propping agent wastes and 5-15% of potassium feldspar. By adopting the fracturing propping agent, the technical problems that in the prior art a fracturing propping agent is high in price of raw materials, high in production cost and low in cost performance are solved, and technical effects that the raw material cost is lowered, the production cost is lowered and the cost performance is improved are achieved.

Description

technical field [0001] The invention relates to the technical field of materials for oil and gas exploitation, in particular to a fracturing proppant and a preparation method thereof. Background technique [0002] Petroleum fracturing proppant is used in the fracturing treatment of high closure pressure and low permeability deposits in the process of oil and gas exploitation, so that the oil and gas-bearing rock formations are cracked, and oil and gas are collected from the channels formed by the cracks. The fracturing proppant material enters the formation with the high-pressure solution and fills in the rock fractures, which plays a role in supporting the fractures from closing due to stress release, thereby maintaining the high conductivity of oil and gas, making oil and gas flow unimpeded, and increasing production. Fracturing proppant is widely used in the exploitation of oil and gas, which increases the production of oil and gas, and supports the ground from subsidence...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/80C04B33/132
CPCC04B33/1324C04B2235/3472C04B2235/656C04B2235/6567C04B2235/77C04B2235/94C04B2235/96C09K8/80Y02P40/60
Inventor 朱现峰贾勤长
Owner ZHENGZHOU RUNBAO REFRACTORY MATERIAL CO LTD
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