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High-strength, high-density porcelain granule support agent and method of producing the same

A manufacturing method and high-density technology, applied in earthwork drilling, mining fluid, wellbore/well parts, etc., can solve the problems of low utilization rate of resources, complex components of auxiliary materials, high production cost, etc., and achieve low manufacturing cost and high technology Simple, good sphericity effect

Active Publication Date: 2009-05-13
贵州鑫益能陶粒支撑剂有限公司
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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 resources. Defects such as low utilization rate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0011] Example 1: According to the following steps, the compressive strength is 86MPa, the broken rate is 3.30g / cm 3 Ceramsite proppant products.

[0012] a. Al 2 o 3 ≥70% bauxite raw ore is dried at 100-200°C and then ground into a powder with a particle size of ≤0.049mm by Raymond mill to obtain material A;

[0013] b. Taking 100 parts by weight of material A as the base material, adding the following auxiliary materials in parts by weight: 0.5-2 parts of manganese oxide, 0.3-1 part of magnesium oxide, and 0.1-1.0 part of iron oxide. The B material is obtained after the base and auxiliary materials are mixed;

[0014] c. Transfer material B into the ball forming machine for granulation, and continuously and evenly add material B into the ball forming machine under the uniform rotation of the ball forming machine, and add atomized water vapor at the same time to form pellets with a particle size of 0.45-0.9mm , get material C;

[0015] d. Send material C into a rotary ki...

Embodiment 2

[0016] Embodiment 2: According to the following steps, the compressive strength is 86MPa, the broken rate3.35g / cm 3 Ceramsite proppant products.

[0017] a. Al 2 o 3 ≥72% bauxite raw ore is dried at 200°C and ground into a powder with a particle size of ≤0.049mm by Raymond mill to obtain material A;

[0018] b. Taking 100 parts by weight of material A as the base material, adding the following auxiliary materials in parts by weight: 1-3 parts of manganese oxide, 0.5-1.5 parts of magnesium oxide, and 1-2 parts of iron oxide. The B material is obtained after the base and auxiliary materials are mixed;

[0019] Other steps remain unchanged, the compressive strength is 86MPa, the broken rate is 3.35g / cm 3 Ceramsite proppant products.

Embodiment 3

[0020] Embodiment 3: According to the following steps, the compressive strength is 86MPa, the broken rate3.35g / cm 3 Ceramsite proppant products.

[0021] a. Al 2 o 3 ≥75% bauxite raw ore is dried at 200°C and ground into a powder with a particle size of ≤0.049mm by Raymond mill to obtain material A;

[0022] b. Taking 100 parts by weight of material A as the base material, adding the following auxiliary materials in parts by weight: 2-5 parts of manganese oxide, 1-2 parts of magnesium oxide, and 1.5-3 parts of iron oxide. Material B is obtained after mixing base and auxiliary materials;

[0023] Other steps remain unchanged, the compressive strength is 86MPa, the broken rate is 3.35g / cm 3 Ceramsite proppant products.

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Abstract

The invention discloses a high-strength high-density ceramic aggregate proppant and a method for preparing the same. In the proppant, 100 weight portions of bauxite raw mineral powder are taken as a base material, and the following auxiliary materials in weight portion are added: 0.5 to 5 portions of manganese oxide, 0.3 to 2 portions of magnesia and 0.1 to 3 portions of ferric oxide; and the base and auxiliary materials are milled by a Raymond mill into powder with grain size of less than or equal to 0.049 mm, mixed with each other, transferred to a granulator, and continuously added with atomized water under the condition that the granulator rotates at an uniform speed along one direction to prepare balls with roundness of more than or equal to 0.9, and the balls are sintered in a rotary kiln at a sintering temperature of between 1,000 and 1,400 DEG C for 0.5 to 4 hours to obtain the proppant. Under the closing pressure of 86MPa, the crashing ratio of the proppant is less than 10 percent, and the observed density is more than 3.30g / cm<3>. The proppant has the characteristics of high compressive strength, high observed density, good roundness, simple process, low production cost, high resource utilization rate, low energy consumption and the like, and the method is suitable for the production of the high-strength high-density ceramic aggregate proppant.

Description

Technical field: [0001] The invention relates to a method for preparing a proppant used in oil and gas well fracturing techniques, in particular to a high-strength, high-density ceramsite proppant and a manufacturing method thereof. Background technique [0002] Proppant is a key material specially required for oil and gas deep and ultra-deep well fracturing technology, and plays an important role in increasing oil and gas production and prolonging the service life of oil and gas wells. In particular, the high-strength and high-density ceramsite proppants with a fracture rate of 86 MPa and above <10% and an apparent density of >3.30 are basically imported from abroad. 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 produce high-strength and high-density ceramsite proppants are complex, resulting in high production costs, high energy consumption, and resources. Defects such ...

Claims

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Application Information

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IPC IPC(8): C09K8/80
Inventor (请求不公开姓名)
Owner 贵州鑫益能陶粒支撑剂有限公司
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