Fracturing propping agent for oil gas well and preparation method thereof

A technology for fracturing proppants and oil and gas wells, which is applied in earthwork drilling, wellbore/well components, and production fluids, etc. It can solve problems such as unsuitable preparation and production, high proppant density, and complicated raw material formulations, and achieve anti-fragmentation High efficiency, high acid corrosion resistance, low raw material requirements

Active Publication Date: 2008-09-24
XINMI WANLI IND DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pressure-bearing capacity of this proppant can reach 69Mpa, but on the one hand, the obtained proppant cannot meet the requirements of higher pressure operating conditions and has a high density; on the other hand, its raw material formula is complicated. al 2 o 3 The content is low, and its preparation and production are not suitable for the specific conditions of our country

Method used

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  • Fracturing propping agent for oil gas well and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Raw material weight composition is as follows: low-content bauxite (Al 2 o 3 Content is 60-65%) 86 parts, manganese ore (MnO 2 Content 40-50%) 3 parts, potassium feldspar (SiO 2 68%, Al 2 o 3 18%, K 2 O 14%) 3 parts, solid water glass (Na2O.3SiO2) 3 parts, calcium stone powder (CaO content 57%) 4 parts, talcum powder (Mg 3 [Si 4 o 10 ](OH) 2 ) 2 copies.

[0033] Grind the above-mentioned mineral components by weight into fine powders with an ultra-fine Raymond mill, pass through a 325-mesh sieve, mix and stir evenly, enter the ball mill for grinding, and then add to the rolling granulator for granulation, and at the same time Add atomized water vapor, and stop atomizing after 50 minutes. At this time, the mixture has formed round particles of different sizes; continuously and evenly add talcum powder for planing. Rotate further and pass through a 140-mesh sieve to obtain a semi-finished product, put the semi-finished product into a sagger, send it into a tun...

Embodiment 2

[0038] The weight composition of raw materials is as follows: 88 parts of low-content bauxite, 4 parts of manganese ore, 3 parts of potassium feldspar, 4 parts of solid water glass, 5 parts of calcium stone powder, and 4 parts of talcum powder.

[0039] The preparation method is the same as in Example 1.

Embodiment 3

[0041] The weight composition of raw materials is as follows: 82 parts of low-content bauxite, 2 parts of manganese ore, 2 parts of potassium feldspar, 2 parts of solid water glass, 3 parts of calcium stone powder, and 2 parts of talcum powder.

[0042] The preparation method is the same as in Example 1.

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Abstract

The invention relates to a fracturing proppant used for oil and gas wells, which is prepared with the following materials by weight: 80 to 88 portions of low content bauxite, 1 to 4 portions of manganese ore, 2 to 3 portions of potash feldspar, 2 to 4 portions of solid soluble glass, 1 to 5 portions of calcium mountain meal, and 1 to 5 portions of French chalk. The quality of the fracturing proppant is stable; the break resistance is high; the acid corrosion resistance is high; the volume density is low; the fracturing proppant can effectively prop up fracture, and significantly improve the permeability in the fracture so that oil and gas flow smoothly, and the oil productivity is improved. In addition, the raw materials and the preparation method are simple, and low requirements are proposed about the raw materials, and the fracturing proppant is prepared simply.

Description

(1) Technical field [0001] The invention relates to a fracturing proppant for oil and gas wells and a preparation method thereof. (2) Background technology [0002] In oil and natural gas deep well exploitation and ultra-deep well fracturing process, proppant is used to provide high permeability channels for the circulation of oil and gas flow, maintain high conductivity, and increase oil and gas production. my country's petroleum industry generally refers to proppants with a pressure bearing capacity of 69Mpa and 86Mpa as high-strength fracturing proppants. CN1844298 discloses a super-strength ceramsite proppant and its preparation method, which is made of the following raw materials: bauxite 10-30%, bauxite 50-70%, high-iron bauxite 8-15%, clay 7-20%, 2-5% manganese ore, 0.5-2.5% potassium feldspar, 0.1-1.2% dextrin, and the raw material requirement is bauxite containing Al 2 o 3 85-90%, bauxite containing Al 2 o 3 : 74-77%, high iron bauxite containing Al 2 o 3 : ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/80
Inventor 王长太黄永伟
Owner XINMI WANLI IND DEV
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