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High-strength high-density ceramic proppant and preparation method thereof

A proppant, high-density technology, used in earth-moving drilling, production fluids, wellbore/well components, etc., can solve the problems of low resource utilization, complex auxiliary materials, high production costs, and reduce energy and resources. The effect of waste, simple process and low manufacturing cost

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

In addition, most of these products use bauxite roasted at 600-1000°C as the base material, and the ingredients of auxiliary materials added to the production of high-strength and high-density ceramsite proppants are complex, resulting in high production costs, high energy consumption, and resource constraints. Defects such as low utilization rate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] In parts by weight, the raw materials of the ceramsite proppant are: 100 parts of raw bauxite, 4 parts of manganese dioxide, 2 parts of zircon sand, 6 parts of barium oxide and 6 parts of zinc powder.

[0026] Al in the raw bauxite 2 o 3 The mass percentage content of ≥75%. ZrO in the zircon sand 2 The mass percentage composition is 65%.

[0027] The particle size of the raw bauxite is 325 mesh; the particle size of manganese dioxide is 400 mesh; the particle size of zircon sand is 400 mesh; the particle size of barium oxide is 400 mesh; the particle size of zinc powder is 400 mesh.

[0028] Prepared using the following steps:

[0029] (1) Fully stir and mix raw bauxite, manganese dioxide, zircon sand, barium oxide and zinc powder in a mixer to obtain a mixed material;

[0030] (2) Put the mixed material into the granulator and granulate to obtain the ceramsite green body (molding particle size is 0.45-0.9mm, sphericity ≥ 0.9); use spray method to add water, the am...

Embodiment 2

[0033] In parts by weight, the raw materials of the ceramsite proppant are: 100 parts of raw bauxite, 7 parts of manganese dioxide, 4 parts of zircon sand, 9 parts of barium oxide and 9 parts of zinc powder.

[0034] Al in the raw bauxite 2 o 3 The mass percentage content of ≥75%. ZrO in the zircon sand 2 The mass percentage composition is 65%.

[0035] The particle size of the raw bauxite is 325 mesh; the particle size of manganese dioxide is 400 mesh; the particle size of zircon sand is 400 mesh; the particle size of barium oxide is 400 mesh; the particle size of zinc powder is 400 mesh.

[0036] Prepared using the following steps:

[0037] (1) Fully stir and mix raw bauxite, manganese dioxide, zircon sand, barium oxide and zinc powder in a mixer to obtain a mixed material;

[0038] (2) Put the mixed material into the granulator and granulate to obtain the ceramsite green body (molding particle size is 0.45-0.9mm, sphericity ≥ 0.9); use the spray method to add water, th...

Embodiment 3

[0041] In parts by weight, the raw materials of the ceramsite proppant are: 100 parts of raw bauxite, 2 parts of manganese dioxide, 1 part of zircon sand, 3 parts of barium oxide and 3 parts of zinc powder.

[0042] Al in the raw bauxite 2 o 3 The mass percentage content of ≥75%. ZrO in the zircon sand 2 The mass percentage composition is 65%.

[0043] The particle size of the raw bauxite is 325 mesh; the particle size of manganese dioxide is 400 mesh; the particle size of zircon sand is 400 mesh; the particle size of barium oxide is 400 mesh; the particle size of zinc powder is 400 mesh.

[0044] Prepared using the following steps:

[0045] (1) Fully stir and mix raw bauxite, manganese dioxide, zircon sand, barium oxide and zinc powder in a mixer to obtain a mixed material;

[0046] (2) Put the mixed material into the granulator and granulate to obtain the ceramsite green body (molding particle size is 0.45-0.9mm, sphericity ≥ 0.9); use the spray method to add water, the...

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Abstract

The invention discloses a high-strength high-density ceramic proppant and a preparation method thereof. The proppant comprises the following raw materials: 100 parts of crude alumina, 1 to 8 parts of manganese dioxide, 0.5 to 5 parts of zircon sand, 2 to 10 parts of barium oxide and 2 to 10 parts of zinc powder. Compared with the prior art, the ceramic proppant has the advantages that compositions and proportion of the raw materials and auxiliary materials are improved, particularly unroasted bauxite is taken as the raw material, the waste of energy and resources is greatly reduced, the reasonable utilization rate of the resources is improved, a relatively low firing temperature range is adopted, and the energy consumption is greatly reduced. A test conducted by an authoritative organization shows that under the closure pressure of 86 MPa, the crushing rate of the produced product is less than 10%, the apparent density is more than 3.35g / cm<3>, and the acid solubility is less than or equal to 5%; and the ceramic proppant has the characteristics of high compressive strength, high apparent density, good sphericity, simple process and low processing cost, and plays an active role in utilizing resources reasonably and reducing energy consumption.

Description

technical field [0001] The invention relates to a method for preparing a proppant used in the fracturing process of oil and natural gas wells, in particular to a high-strength, high-density ceramsite proppant and its preparation method 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...

Claims

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Application Information

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