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Ultralow-density haydite proppant and preparation method thereof

An ultra-low density, proppant technology, used in earth-moving drilling, production fluids, wellbore/well components, etc., can solve the problems of high proppant breakage rate, low strength, unstable product quality, etc., and achieve low production costs. , The effect of reducing the crushing rate and reducing wear

Inactive Publication Date: 2015-04-01
YIXING TENGFEI OIL FRACTARING PROPPANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The raw material of the existing ultra-low density and low alumina ceramsite proppant generally adopts quartz sand, which has a high breakage rate, unstable product quality and low strength

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The raw materials of the proppant by weight percentage are: raw bauxite 80%, diatomite 6%, light MgO 3% and clay 11%.

[0028] The weight percentage of main chemical composition in described raw bauxite is: Al 2 o 3 Content 45%-65%, SiO 2 Content 7%-14%, the particle size of described raw bauxite is 400 mesh;

[0029] SiO in the diatomaceous earth 2 The weight percentage content is not less than 70%, and the particle size is 400 mesh;

[0030] The weight percent of main chemical composition in described clay is: Al 2 o 3 Content 32%-38%, SiO 2 The content is 40%-46%, and the particle size is 400 mesh;

[0031] Light MgO is a commercially available product.

[0032] The preparation process is:

[0033] (1) Mix raw bauxite, diatomaceous earth, light MgO and clay uniformly in proportion to obtain a mixed material;

[0034] (2) Put the mixed material into the granulator and granulate to obtain the ceramsite green body (molding particle size is 0.5-1.0mm); use spra...

Embodiment 2

[0037] The raw materials of the proppant by weight percentage are: raw bauxite 74%, diatomite 10%, light MgO 4% and clay 12%.

[0038] The weight percentage of main chemical composition in described raw bauxite is: Al 2 o 3 Content 45%-65%, SiO 2 Content 7%-14%, the particle size of described raw bauxite is 400 mesh;

[0039] SiO in the diatomaceous earth 2 The weight percentage content is not less than 70%, and the particle size is 400 mesh;

[0040] The weight percent of main chemical composition in described clay is: Al 2 o 3 Content 32%-38%, SiO 2 The content is 40%-46%, and the particle size is 400 mesh;

[0041] Light MgO is a commercially available product.

[0042] The preparation process is:

[0043] (1) Mix raw bauxite, diatomaceous earth, light MgO and clay uniformly in proportion to obtain a mixed material;

[0044] (2) Put the mixed material into the granulator and granulate to obtain the ceramsite green body (molding particle size is 0.5-1.0mm); use spr...

Embodiment 3

[0047] The raw materials of the proppant by weight percentage are: raw bauxite 85%, diatomite 6%, light MgO 5% and clay 4%.

[0048] The weight percentage of main chemical composition in described raw bauxite is: Al 2 o 3 Content 45%-65%, SiO 2 Content 7%-14%, the particle size of described raw bauxite is 400 mesh;

[0049] SiO in the diatomaceous earth 2 The weight percentage content is not less than 70%, and the particle size is 400 mesh;

[0050] The weight percent of main chemical composition in described clay is: Al 2 o 3 Content 32%-38%, SiO 2 The content is 40%-46%, and the particle size is 400 mesh;

[0051] Light MgO is a commercially available product.

[0052] The preparation process is:

[0053] (1) Mix raw bauxite, diatomaceous earth, light MgO and clay uniformly in proportion to obtain a mixed material;

[0054] (2) Put the mixed material into the granulator and granulate to obtain the ceramsite green body (molding particle size is 0.5-1.0mm); use spray...

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Abstract

The invention discloses an ultralow-density haydite proppant and a preparation method thereof. The ultralow-density haydite proppant comprises the following raw materials in percentage by weight: 73-85% of raw alumina, 5-10% of kieselguhr, 1.0-5% of light-weight MgO and 3-15% of clay. Compared with the prior art, the technical scheme disclosed by the invention has the characteristics of wide raw material sources, simple production technique, low production cost and the like; the volume density of the product is lower than 1.60g / cm<3>; and the ultralow-density haydite proppant is suitable for shallow well fracturing construction in new and old oil gas well hydraulic power, and can effectively reduce the abrasion of the power pump and pipeline from the haydite proppant in the hydraulic fracturing construction process, thereby reducing the consumption of the proppant, lowering the cost and the like. The breaking ratio of the prepared haydite proppant is obviously lowered. Other indexes of the product satisfy the industry standard.

Description

technical field [0001] The invention belongs to the field of inorganic non-metallic ceramic materials, and in particular relates to an ultra-low density ceramsite proppant and a preparation method thereof. Background technique [0002] Petroleum fracturing proppant (ceramsite sand) is a kind of ceramic particle product with high fracturing strength. It is mainly used for downhole support in oil fields to increase the production of oil and natural gas. It is an environmentally friendly product. This product is a substitute for medium and low-strength proppants such as natural quartz sand, glass balls, and metal balls, and has a good effect on increasing oil and gas production. [0003] 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 gather from the channels formed by the fractures. Petroleum fracturing proppant is used along with the high-pressure ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/80C04B35/10C04B35/622
Inventor 黄锡明
Owner YIXING TENGFEI OIL FRACTARING PROPPANT