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High-density ultra-strength petroleum compression fracture proppant and preparation method thereof

A fracturing proppant and petroleum technology, which is applied in the direction of earthwork drilling, production fluid, wellbore/well components, etc., can solve the problems of land occupation, environmental pollution, etc., and achieve the goal of saving resources, increasing oil production, and good practical prospects Effect

Inactive Publication Date: 2009-11-18
JINGANG NEW MATERIALS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Waste alumina adsorbents used in hydrogen peroxide, pharmaceutical, ethylene, air separation and other production plants are industrial wastes. The stacking of these industrial wastes not only occupies land, but also pollutes the environment

Method used

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  • High-density ultra-strength petroleum compression fracture proppant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A petroleum fracturing proppant, the raw materials are as follows in mass parts: 90 parts of waste alumina adsorbent, 2 parts of titanium oxide, 1 part of talc, 1 part of barium carbonate, and 6 parts of ceramic clay.

[0033] 1. Add 90 parts of waste alumina adsorbent powder, 2 parts of titanium oxide, 1 part of talc, 1 part of barium carbonate and 6 parts of ceramic clay into the ball mill, and add 0.3% of the total weight of raw materials as a ball milling aid tripolyphosphoric acid Sodium, add water and ball mill for 10-12 hours to obtain a uniform slurry. The solid content of the slurry is 60wt%.

[0034] 2. Dry and granulate the slurry prepared in step 1 in a spray drying tower to obtain a powder;

[0035] 3. Form the powder obtained in step 2 into a semi-finished proppant with a particle size of 30-50 mesh on a sugar-coated ball forming machine;

[0036] 4. Dry the semi-finished product obtained in step 3, and burn it in a shuttle kiln at a temperature of 1580°...

Embodiment 2

[0038] 1. Add 86 parts of waste alumina adsorbent powder, 2 parts of titanium oxide, 1 part of light calcium carbonate, 1 part of talc, 2 parts of manganese oxide and 8 parts of ceramic clay to the ball mill, and add 0.3% of the total weight of raw materials Sodium tripolyphosphate as a ball milling aid, add water and ball mill for 10-12 hours to obtain a uniform slurry. The solid content of the slurry is 60wt%.

[0039] 2. Dry and granulate the slurry prepared in step 1 in a spray drying tower to obtain a powder with a certain particle size;

[0040] 3. Form the powder obtained in step 2 into a semi-finished proppant with a particle size of 20-40 mesh on a sugar-coated ball forming machine;

[0041] 4. Dry the semi-finished product obtained in step 3, and burn it in a tunnel kiln at a temperature of 1500°C. The fired proppant is milled in a ball mill with water for 2 hours, and then dried to obtain a smooth-surfaced oil fracturing proppant product.

Embodiment 3

[0042] Example 3: A petroleum fracturing proppant, the mass percentage of raw materials is as follows: 92 parts of waste alumina adsorbent, 1 part of titanium oxide, 2 parts of dolomite, and 5 parts of ceramic clay. The preparation steps are the same as in Example 1.

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Abstract

The invention relates to a high-density ultra-strength petroleum compression fracture proppant and a preparation method thereof. The petroleum compression fracture proppant is prepared from waste alumina adsorbent taken as a main raw material and small amount of sintering aid and ceramic clay by milling, pelletizing and sintering. The petroleum compression fracture proppant prepared from the waste alumina adsorbent replacing industrial alumina has the characteristics of high density, ultra strength and acid resistance, has the volume concentration between 1.88 and 1.98, the apparent density between 3.20 and 3.50, the percentage of damage under 86MPa of closing pressure between 2.60 and 3.90 percent, the percentage of damage under 103MPa of closing pressure between 4.60 and 8.4 percent and the acid resistance between 3.40 and 5.20 percent, has excellent comprehensive performance, and can be used for petroleum compression fracture of deep oil wells.

Description

technical field [0001] The invention relates to a high-density and ultra-high-strength petroleum fracturing proppant and a preparation method thereof, belonging to the technical field of new materials. Background technique [0002] Petroleum fracturing proppants are necessary special materials in oil and gas field fracturing operations, especially in the development of low permeability oil and gas fields. In the oil fracturing process, the proppant is mixed into the fracturing fluid, and injected into deep rock fractures by high-pressure means to support the rock formation to improve the oil conductivity. For medium-deep oil wells, the proppant is required to have high strength and acid resistance to withstand the huge pressure of the rock formation and the environmental corrosion in the formation. At present, fracturing proppants produced in China mainly use bauxite and solid waste as raw materials, and the product strength is generally low, so they can only be used for sh...

Claims

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Application Information

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IPC IPC(8): C09K8/80
Inventor 张玉军赵友谊崔洪王晋槐龚红宇纪淑芸
Owner JINGANG NEW MATERIALS
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