Low-density ceramsite supporting agent and preparation method thereof

A proppant, low-density technology, used in earth-moving drilling, production fluids, wellbore/well components, etc., can solve the problems of high production cost and high price of low-density ceramsite proppant, maximize resource utilization, The effect of low production cost and simple preparation method

Inactive Publication Date: 2013-01-16
SHANXI FANGXING REFRACTORIES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention solves the problems of high production cost and high price of low-density ceramsite ...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] (1) The bauxite tailings were calcined at 600°C for 1.5 hours, pulverized by a Raymond mill and passed through a 500-mesh sieve with a sieving rate greater than 80%, to obtain 1000kg of material A. The main chemical composition of bauxite tailings is Al 2 o 3 42%, SiO 2 38%, Fe 2 o 3 1.2%;

[0011] (2) Take material A as the base material, and add the following auxiliary materials to the base material to obtain material B: 10kg of bentonite, 10kg of chromite, 100kg of uncalcined bauxite tailings raw material, all the above auxiliary materials are passed through a 500-mesh sieve, and sieved The rate is greater than 80%;

[0012] (3) Add B material continuously and evenly into the ball forming machine, spray atomized water vapor during the adding process, and make the ball material pass through a 18-35 mesh sieve to obtain C material;

[0013] (4) Dry material C in a dryer so that the water content is less than 3%, and obtain material D;

[0014] (5) The product...

Embodiment 2

[0016] (1) The bauxite tailings were calcined at 900°C for 0.2 hours, pulverized by a Raymond mill and passed through a 500-mesh sieve with a sieving rate greater than 80%, to obtain 1000kg of material A. The main chemical composition of bauxite tailings is Al 2 o 3 45%, SiO 2 36%, Fe 2 o 3 1.1%;

[0017] (2) Take material A as the base material, and add the following auxiliary materials to the base material to obtain material B: 20kg of bentonite, 20kg of chromite, 150kg of uncalcined bauxite tailings raw material, all the above auxiliary materials are passed through a 500-mesh sieve, and sieved The rate is greater than 80%;

[0018] (3) Add B material continuously and evenly into the ball forming machine, spray atomized water vapor during the adding process, and make the ball material pass through a 18-35 mesh sieve to obtain C material;

[0019] (4) Dry material C in a dryer so that the water content is less than 3%, and obtain material D;

[0020] (5) The product is...

Embodiment 3

[0022] (1) The bauxite tailings were calcined at 800°C for 0.8 hours, pulverized by a Raymond mill and passed through a 500-mesh sieve with a sieving rate greater than 80%, to obtain 1000kg of A material. The main chemical composition of bauxite tailings is Al 2 o 3 40%, SiO 2 39%, Fe 2 o 3 1.2%;

[0023] (2) Take material A as the base material, and add the following auxiliary materials into the base material to obtain material B: 15kg of bentonite, 15kg of chromite, 120kg of uncalcined bauxite tailings raw material, all the above auxiliary materials are passed through a 500-mesh sieve, and sieved The rate is greater than 80%;

[0024] (3) Add B material continuously and evenly into the ball forming machine, spray atomized water vapor during the adding process, and make the ball material pass through a 18-35 mesh sieve to obtain C material;

[0025] (4) Dry material C in a dryer so that the water content is less than 3%, and obtain material D;

[0026] (5) Sinter th...

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PUM

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Abstract

The invention discloses a low-density ceramsite supporting agent prepared by using bauxite tailings and a preparation method for the low-density ceramsite supporting agent. The low-density ceramsite supporting agent is prepared from the following raw materials in part by weight: 100 parts of calcined bauxite tailings, 1 to 2 parts of bentonite, 1 to 2 parts of chromite and 10 to 15 parts of non-calcined bauxite tailings. The production method comprises the following steps of: calcining and smashing the calcined bauxite tailings, smashing the bentonite, the bentonite and the non-calcined bauxite tailings, adding the materials into the calcined bauxite tailings, preparing ball materials, drying, and sintering to obtain the product. According to the method, the waste bauxite tailing is used as a main raw material, and the high-quality low-density ceramsite supporting agent can be produced by performing secondary sintering and rationally adding auxiliary materials; the preparation method is simple and low in production cost; and resources can be used to the greatest extent.

Description

technical field [0001] The invention relates to a proppant used in petroleum and natural gas fracturing techniques, in particular to a low-density ceramsite proppant and a preparation method thereof. Background technique [0002] Ceramsite proppant is generally produced from high-quality bauxite. According to its density, it can be divided into three types: low-density, medium-density and high-density. Among them, the production of low-density ceramsite proppant is relatively difficult. At present, it is mainly produced by some foreign companies. Company production. Contents of the invention [0003] The invention solves the problems of high production cost and high price of the low-density ceramsite proppant, and provides a low-density ceramsite proppant prepared from bauxite tailings and a method thereof. [0004] The technical scheme adopted in the present invention is: [0005] A low-density ceramsite proppant, which is composed of the following raw materials in part...

Claims

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Application Information

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IPC IPC(8): C09K8/80
Inventor 刘新民冯勇辉刘敏范冬梅
Owner SHANXI FANGXING REFRACTORIES CO LTD
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