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Low-density high-strength ceramsite proppant prepared from flint clay as raw material and preparation method thereof

A technology of high-strength ceramsite and proppant, which is applied to clay products, earth square drilling, and other household appliances. It can solve the problems of low plasticity and difficulty in dispersing, and achieve low breakage rate, low production energy consumption, and simple preparation method. Effect

Inactive Publication Date: 2013-12-25
ZIBO JIAFENG MINING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Burnt gems are not easy to disperse in water and have low plasticity

Method used

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  • Low-density high-strength ceramsite proppant prepared from flint clay as raw material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The chemical composition and mass percentage of burnt gemstones are as follows:

[0040] Al 2 o 3 : 46%, SiO 2 : 51%, Fe 2 o 3 : 1%, TiO 2 : 1%, CaO: 0.4%, MgO: 0.4%, K 2 O: 0.1%, Na 2 O: 0.1% and loss on ignition.

[0041] The preparation method of the low-density high-strength ceramsite proppant using burnt gem as raw material is as follows:

[0042] (1) Carry out calcination treatment of the raw coke gem raw ore, the calcination temperature is 1000°C, and calcination is performed for 2.5 hours;

[0043] (2) Crushing and grinding the calcined raw materials to 120 mesh;

[0044] (3) Add water to the raw material after grinding, stir and wet grind it into a slurry, so that the solid content of the slurry is 70%, and take samples every 10 minutes to detect the particle size with a laser particle size analyzer, and the particle size reaches 800 mesh;

[0045] (4) Spray-dry the mud that has reached the particle size with a spray drying tower to a moisture content...

Embodiment 2

[0050] The chemical composition and mass percentage of burnt gemstones are as follows:

[0051] Al 2 o 3 : 43%, SiO 2 : 52%, Fe 2 o 3 : 1.5%, TiO 2 : 2.5%, CaO: 0.2%, MgO: 0.5%, K 2 O: 0.2%, Na 2 O: 0.1% and loss on ignition.

[0052] The preparation method of the low-density high-strength ceramsite proppant using burnt gem as raw material is as follows:

[0053] (1) Carry out calcination treatment of the raw coke gem raw ore, the calcination temperature is 1200°C, and calcination is performed for 3 hours;

[0054] (2) Crushing and grinding the calcined raw materials to 300 mesh;

[0055] (3) Add water to the ground raw material and wet grind it into slurry with stirring and wet grinding. The solid content of the slurry is 68%. Sampling is carried out every 10 minutes with a laser particle size analyzer to detect the particle size, and the particle size reaches 500 mesh;

[0056] (4) Spray-dry the mud that has reached the particle size with a spray drying tower to a ...

Embodiment 3

[0061] The chemical composition and mass percentage of burnt gemstones are as follows:

[0062] Al 2 o 3 : 41%, SiO 2 : 54%, Fe 2 o 3 : 2.5%, TiO 2 : 1.5%, CaO: 0.2%, MgO: 0.3%, K 2 O: 0.3%, Na 2 O: 0.2% and loss on ignition.

[0063] The preparation method of the low-density high-strength ceramsite proppant using burnt gem as raw material is as follows:

[0064] (1) Carry out calcination treatment of raw coke gem raw ore, calcination temperature is 800°C, calcination for 4 hours;

[0065] (2) Crushing and grinding the calcined raw materials to 200 mesh;

[0066] (3) Add water to the raw material after grinding according to the solid content of 69% and use a stirring mill to wet grind it into a slurry, take samples every 10 minutes and use a laser particle size analyzer to detect the particle size, and the particle size reaches 1500 mesh;

[0067] (4) Spray-dry the mud that has reached the particle size with a spray drying tower to a moisture content of less than 6%;...

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Abstract

The invention relates to a low-density high-strength ceramsite proppant prepared from flint clay as a raw material. In percentage by weight, a composition contains raw materials in content after the raw materials are mixed: 40-50% of Al2O3, 45-55% of SiO2, 0.5-3% of Fe2O3, 0.5-3% of TiO2, 0.1-2% of CaO+MgO, 0.1-1% of K2O+Na2O and the balance of ignition loss. According to the low-density high-strength ceramsite proppant prepared from flint clay as a raw material and the preparation method thereof, low-density high-strength ceramsites are prepared from the flint clay, so that the contradiction between the density and strength of the ceramsite proppant is solved, and the strength is relatively high while the density is low; the low-density high-strength ceramsite proppant has the advantages of low apparent density and bulk density, low broken rate, stable quality, high normal-temperature strength and low production energy consumption; the preparation method is simple, the material proportioning is simple, and the operation is convenient.

Description

technical field [0001] The invention relates to a low-density and high-strength ceramsite proppant using burnt gemstones as raw materials and a preparation method thereof. Background technique [0002] During oil and gas deep well mining, high closure pressure and low permeability deposits are treated by fracturing to crack the oil-gas-bearing rock formations, and oil and gas are collected from the channels formed by the fractures. At this time, fluids need to be injected into the rock base to overcome formation fractures Intensive pressure creates cracks in the rock formations around the wellbore, forming a channel with high-level flow capability. In order to keep the cracks formed after fracturing open, oil and gas products can pass through smoothly. Petroleum proppant is used to enter the formation along with the high-pressure solution to fill in the fractures of the rock formation, which plays a role in supporting the fractures from closing due to stress release, so as t...

Claims

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Application Information

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IPC IPC(8): C09K8/80C04B33/22
Inventor 唐珂孙洪巍金宝文高光辉
Owner ZIBO JIAFENG MINING
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