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High-strength petroleum oil fracturing proppant

A fracturing proppant, high-strength technology, applied in the direction of production fluid, wellbore/well components, drilling composition, etc., can solve the problems of difficult raw material sources, complex processing technology, high energy consumption, etc., and achieve easy realization Industrialized production, reduction of environmental pollution, and wide application prospects

Inactive Publication Date: 2015-09-23
GUANGXI JINZHUANGJIN ENERGY SAVING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process of the present invention is relatively simple, but the cost of raw materials is high, and the compressive strength of the prepared product is very low at 103 Mpa, which cannot meet the performance requirements of proppant in deep oil and gas wells
[0006] At present, domestically produced oil fracturing proppants have difficulties in raw material sources, complex processing techniques, high energy consumption, high cost, low strength, weak compression resistance, and high density and other defects

Method used

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  • High-strength petroleum oil fracturing proppant

Examples

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Comparison scheme
Effect test

Embodiment 1

[0021] A high-strength petroleum fracturing proppant, comprising the following raw materials in parts by weight: Al 2 o 3 The content is 70.24% and Fe 2 o 3 20kg of Guangxi Pingguo bauxite waste slag with a content of 12.6%, Al 2 o 3 The content is 93.54% and Fe 2 o 3 30kg of Guizhou bauxite with a content of 0.77%, and 0.6 kg of pregelatinized starch as a sintering aid.

[0022] The preparation method of the high-strength petroleum fracturing proppant is as follows: Weigh the materials according to the above-mentioned weight-number ratio, mix the materials evenly, grind, granulate, and dry them by conventional methods, and then add them to the rotary kiln for sintering at 1470 °C for 30 minutes, and After sieving with a 20-40 mesh sieve, it can be made into a high-strength oil fracturing proppant.

Embodiment 2

[0024] A high-strength petroleum fracturing proppant, comprising the following raw materials in parts by weight: Al 2 o 3 The content is 72.87%, Fe 2 o 3 20kg of Guangxi Pingguo bauxite waste slag with a content of 10.17%, Al 2 o 3 The content is 90.78%, Fe 2 o 3 30 kg of Guizhou bauxite with a content of 0.60%, 0.6 kg of pregelatinized starch as a sintering aid.

[0025] The preparation method of the high-strength petroleum fracturing proppant is as follows: Weigh the materials according to the above-mentioned weight-number ratio, mix the materials evenly, grind, granulate, and dry them by conventional methods, and then add them to a rotary kiln for sintering at 1480°C for 30 minutes, and After sieving with a 20-40 mesh sieve, it can be made into a high-strength oil fracturing proppant.

Embodiment 3

[0027] A high-strength petroleum fracturing proppant, comprising the following raw materials in parts by weight: Al 2 o 3 The content is 69.03%, Fe 2 o 3 20kg of Guangxi Pingguo bauxite waste slag with a content of 12.81%, Al 2 o 3 The content is 93.54%, Fe 2 o 3 30 kg of Guizhou bauxite with a content of 0.81%, 0.6 kg of pregelatinized starch as a sintering aid.

[0028] The preparation method of the high-strength petroleum fracturing proppant is as follows: Weigh the materials according to the above-mentioned ratio of weight and number, mix the materials evenly, grind, granulate, and dry them by conventional methods, then add them to the rotary kiln for sintering at 1490°C for 30 minutes, and After sieving with a 20-40 mesh sieve, it can be made into a high-strength oil fracturing proppant.

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Abstract

The invention discloses a high-strength petroleum oil fracturing proppant. The proppant comprises the raw materials of, by weight, 20-40 parts of bauxite waste slag, 30-60 parts of bauxite and 0.75 parts of a sintering aid. The bauxite is Guizhou aluminoferrite, and the bauxite waste slag is Pingguo aluminoferrite slag. A preparation process of the proppant comprises the following steps: the raw materials are weighed according to the above weight ratio; the materials are well mixed; grinding, granulating, and drying are carried out with conventional methods; and the obtained material is sintered for 0.5-0.8h under a temperature of 1460-1490 DEG C in a rotary kiln, such that the high-strength petroleum oil fracturing proppant is obtained. The preparation method has the advantages of rich and easy-to-obtain raw materials, low cost, simple process, and low energy consumption. With the method, industrialized production can be easily realized. The proppant has the advantages of high compressive strength under a pressure of 103Mpa, low density and the like.

Description

technical field [0001] The invention belongs to the production field of petroleum fracturing proppant, in particular to a high-strength petroleum fracturing proppant. Background technique [0002] Petroleum fracturing proppant is the key material for fracturing construction of oil, natural gas and shale gas low permeability oil and gas wells. Fracturing technology is an important means of transforming oil and gas fields. It uses artificial methods to inject fluid into the rock base, with a pressure exceeding the fracture strength of the formation, to create cracks in the rock formations around the wellbore and form a channel with high conductivity. To maintain fracturing The fractures formed later are opened, and oil and gas products can pass through smoothly. One of the important measures is to inject granular proppants. Proppant particles are injected into fractures formed in oil-bearing formations to hold the fracture walls in place, preventing them from closing. The st...

Claims

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Application Information

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IPC IPC(8): C09K8/80
CPCC09K8/80
Inventor 贺定英
Owner GUANGXI JINZHUANGJIN ENERGY SAVING TECH