Fracturing fluid and preparation method thereof

A technology of fracturing fluid and mixed fluid, which is applied in the direction of chemical instruments and methods, drilling compositions, etc., and can solve problems such as reducing clay water absorption and swelling

Inactive Publication Date: 2020-09-08
北京斯迪莱铂油气技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, clay stabilizer is used to reduce water swelling of clay

Method used

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  • Fracturing fluid and preparation method thereof
  • Fracturing fluid and preparation method thereof
  • Fracturing fluid and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Take 56g of distilled water and stir, add 10g of boric acid, 7.5g of sodium metaaluminate, 15g of glyoxal, 10g of glycerin and 1.5g of sodium hydroxide according to the mass ratio, and obtain crosslinking agent solution 1# after all are dissolved.

Embodiment 2

[0042] Take 79.5g of distilled water and stir, add 5g of boric acid, 5g of sodium metaaluminate, 5g of glyoxal, 5g of glycerin and 0.5g of sodium hydroxide according to the mass ratio, and obtain crosslinking agent solution 2# after all are dissolved.

Embodiment 3

[0044] Take 17g of distilled water and stir, add 25g of boric acid, 10g of sodium metaaluminate, 30g of glyoxal, 15g of glycerin and 3g of sodium hydroxide according to the mass ratio, and obtain crosslinking agent solution 3# after all are dissolved.

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PUM

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Abstract

The invention provides a fracturing fluid and a preparation method thereof. The fracturing fluid comprises vegetable gum, a synergist, a cross-linking agent, an optional clay stabilizer, a cleanup additive, water and an optional bactericide. The fracturing fluid comprises the following components in percentage by mass: 0.2%-0.75% of vegetable gum, 0.1%-10% of a synergist, 0.25%-0.65% of a cross-linking agent, 0-2% of a clay stabilizer, 0.05%-1% of a cleanup additive, 0-0.1% of a bactericide and the balance of water.

Description

technical field [0001] The invention provides a fracturing fluid system and a preparation method thereof. Background technique [0002] With the decline of high-quality crude oil and natural gas resources around the world, the demand for oil and gas is gradually increasing. The main measures to increase and stabilize oil and gas production are to tap the potential of low-grade mineral resources and old oil fields again. Hydraulic fracturing technology is an important measure to develop low-grade oil resources and deeply tap the potential of old oil fields. Fracturing fluid system is the core component of hydraulic fracturing technology. [0003] With the development of unconventional resources, large-scale volumetric fracturing technology has been widely used, and the demand for clean water resources has also increased. Especially in the west of China, the water resources are limited, and the contradiction between on-site construction and water shortage cannot be solved, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/68C09K8/90
CPCC09K8/685C09K8/887C09K8/905
Inventor 张大年程兴生李永平张智永谭建永韩朝利门任孝柯魏凯
Owner 北京斯迪莱铂油气技术有限公司
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