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Low-density high-strength petroleum ceramsite proppant taking tuff as main raw material, and preparation method thereof

A main raw material, tuff technology, applied in ceramic products, chemical instruments and methods, earthwork drilling and mining, etc., to achieve the effects of increasing oil development rate, increasing the strength of ceramsite, and reducing firing temperature

Active Publication Date: 2014-12-24
XINYANG CITY SHANGTIANTI YIHE MINERAL PROD RESOURCES DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, ceramsite proppants are mostly made of bauxite ceramsite technology. How to prepare petroleum ceramsite proppants from waste tuff with a huge output is already a problem worth studying.

Method used

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  • Low-density high-strength petroleum ceramsite proppant taking tuff as main raw material, and preparation method thereof
  • Low-density high-strength petroleum ceramsite proppant taking tuff as main raw material, and preparation method thereof
  • Low-density high-strength petroleum ceramsite proppant taking tuff as main raw material, and preparation method thereof

Examples

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Effect test

preparation example Construction

[0022] Described a kind of low-density high-strength petroleum ceramsite proppant with tuff as main raw material, its preparation method comprises the following steps:

[0023] 1) Weigh the tuff mineral powder, bauxite particles and magmatic soil particles according to the weight ratio, and dry them under the temperature condition of 105-130°C for 2-4 hours, and then mix them evenly to prepare the mixture;

[0024] 2) Add the mixture and modified polyphenylene particles prepared in step 1) into the ball granulator to form green balls. During the granulation process, spray industrial diphosphate diphosphate with a weight concentration of 0.5-1.0% on the surface of the green balls. Aluminum hydrogen phosphate solution until the surface of the sphere is wetted, and then dried at 130-160°C for 2-4 hours to obtain a dry ball. close;

[0025] 3) Calcining the dry balls prepared in step 2) at a temperature of 1080-1180° C. for 20-40 minutes, and cooling to obtain a fired low-density...

Embodiment 1

[0027] A method for preparing low-density and high-strength petroleum ceramsite proppant by utilizing tuff, comprising the following steps:

[0028] 1) Weigh 60% of tuff mineral powder, 30% of bauxite particles and 10% of magmatic soil particles according to the weight ratio, and dry them at 105°C for 4 hours, then mix them evenly to prepare Get the mix.

[0029] 2) Add the mixture and modified polystyrene particles in step 1) into a ball granulator to form balls, spray 0.5% industrial aluminum dihydrogen phosphate solution until the surface of the ball is wet, and then put the raw balls Dry at 130°C for 4 hours;

[0030] 3) The dried green balls in step 2) were calcined at 1180°C for 40 minutes, and then cooled to obtain calcined ceramsite petroleum proppant.

[0031] The particle size of the ceramsite prepared above is 0.66-0.84mm, and the bulk density of the ceramsite is 1.60g / cm 3 , the acid solubility is 4.0%, the turbidity is 98NTU; the closing pressure is 99MPa, the ...

Embodiment 2

[0033] A method for preparing low-density and high-strength petroleum ceramsite proppant by utilizing tuff, comprising the following steps:

[0034] 1) Weigh 55% of tuff mineral powder, 35% of bauxite particles and 10% of magmatic soil particles according to the weight ratio, and dry them at 130°C for 2 hours, and then mix them evenly to obtain a mixed material.

[0035] 2) Add the mixture and modified polystyrene particles in step 1) into a ball granulator to form balls. During the process of forming balls, spray industrial aluminum dihydrogen phosphate solution with a concentration of 0.1% until the surface of the balls is wet, and then put the raw balls Dry at 160°C for 4 hours;

[0036] 3) The green balls dried in step 2) were calcined at 1150°C for 30 minutes, and then cooled to obtain calcined ceramsite petroleum proppant.

[0037] The particle size of the ceramsite prepared above is 0.44-0.71mm, and the bulk density of the ceramsite is 1.5g / cm 3 , the acid solubility...

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Abstract

The invention discloses a low-density high-strength petroleum ceramsite proppant taking tuff as a main raw material, and a preparation method thereof. The ceramsite preparation materials is prepared from the following components in percentage by weight: 40%-60% of tuff mineral powder, 30%-45% of bauxite and 5%-20% of magma powder, wherein the total weight percent is 100%, and the volume of modified polyphenyl particles accounts for 30% of the total volume of the materials. The method comprises the following steps: weighing a certain amount of tuff, bauxite and a small amount of magma, blending and grinding, adding a certain amount of polyphenyl particles in a ceramsite pelletizer, pelletizing through a ceramsite making machine to make balls, drying the balls, screening the balls according to grain size, and roasting the qualified balls at the temperature of 1100-1190 DEG C for 20-40 minutes, so as to obtain the fired low-density high-strength proppant. The low-density high-strength petroleum ceramsite proppant utilizes the characteristics of high silicon content of the tuff and the magma, so that the ceramsite firing temperature is reduced, the ceramsite strength is improved at the same time, and the production cost is lowered.

Description

Technical field [0001] The present invention is a comprehensive field of lifting, and it involves a method that involves a low -density, high -strength oil pottery support agent and its preparation with the main raw materials. Background technique [0002] Low -density and high -strength oil pottery support agent is mainly used in oil mining. As an oil fracture support agent, it is a support for the fracture of the rock in the depths of the strata.At present, the oil pottery support agent produced mainly uses aluminum alum soil as the raw material, and the production of petroleum ceramic granules with condensate is not realized.As a type of volcanic magtes, Ningxiastan is used in actual production, which is a type of waste, but the amount of lithite in my country generates huge amounts of quantity. [0003] At present, the commonly used supporting agents are quartz sand, aluminum soil grain sand and resin covering composite particles.Due to the low cost of quartz sand and low den...

Claims

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Application Information

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IPC IPC(8): C09K8/80C04B35/14C04B35/622
CPCC04B38/062C04B2235/3217C09K8/80C04B33/13C04B35/10
Inventor 骆向阳李鹏鹏
Owner XINYANG CITY SHANGTIANTI YIHE MINERAL PROD RESOURCES DEV
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