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Slick water applied to shale gas industrialized fracturing exploitation and preparation method thereof

A factory-like, shale gas technology, applied in the field of slick water, can solve the problems of long fracturing construction period, high fluid mixing requirements, and long fluid mixing time, and achieves improved dissolution rate and salt resistance, simple formula, and liquid speed effect

Active Publication Date: 2015-02-25
SICHUAN WELDON CHEM
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a kind of slick water used in shale gas factory fracturing and its preparation method, which mainly solves the problem that the existing slick water has a long fracturing construction period due to long liquid mixing time and high liquid mixing requirements. , the problem of high cost

Method used

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Embodiment

[0046] The invention provides a new slick water and its preparation process. The slick water includes emulsion drag reducer, bactericide, clay stabilizer, drainage aid and clear water, wherein the ratio of each component is: emulsion Drag-reducing agent 0.05%-0.1%, fungicide 0.1%-0.2%, clay stabilizer 0.1%-0.2%, drainage aid 0.09%-0.11%, and the balance is clear water. And the preparation process about this kind of slippery water is then as follows:

[0047] First, the emulsion drag reducer, clay stabilizer and drainage aid were prepared respectively. The preparation steps of emulsion drag reducing agent are as follows:

[0048] (1) Hydrolyze acrylamide with distilled water, and mix sodium acrylate and acrylamide hydrolyzate to form a mixed solution 1;

[0049] (2) Mix liquid paraffin and Span-80 to form a mixture II;

[0050] (3) Add any sulfonate to the mixed solution 1, and stir evenly to form the mixed solution 3;

[0051] (4) Add mixed solution 3 to mixed solution 2 a...

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Abstract

The invention discloses slick water applied to shale gas industrialized fracturing exploitation and a preparation method thereof, and solves the problems of long period of fracturing construction and high cost of the existing slick water due to long liquid preparation time and high liquid preparation requirements. The slick water provided by the invention includes 0.05%-0.1% of an emulsion resistance reducing agent, 0.1%-0.2% of a fungicide, 0.1%-0.2% of a clay stabilizer, 0.09%-0.11% of a cleanup agent and the balance of water. The formula of the invention is reasonable in design, the emulsion resistance reducing agent dissolves and glues rapidly and has strong salt resistance, so as to not only greatly shorten the cycle of fracturing construction but also reduce the construction cost to meet the requirements for shale gas industrialized fracturing exploitation. The invention has the advantages of simple process, wide source of raw materials, and high application value and promotion value.

Description

[0001] technical field [0002] The invention relates to a slick water, in particular to a slick water used in shale gas industrialized fracturing exploitation and a preparation method thereof. Background technique [0003] In October 2013, the National Energy Administration issued the "Shale Gas Industry Policy", including shale gas as a strategic emerging industry, and will introduce relevant incentive policies for shale gas mining to vigorously promote domestic shale gas development. [0004] According to the authoritative report issued by the Ministry of Land and Resources, the potential of my country's recoverable shale gas resources is 25.1 trillion cubic meters, surpassing that of the United States, and its recoverable reserves rank first in the world. According to the "Twelfth Five-Year Plan" for shale gas, by 2015, my country's shale gas will achieve the goal of 600 billion cubic meters of proven geological reserves, 200 billion cubic meters of recoverable reser...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/68
CPCC09K8/602C09K8/605C09K8/607C09K8/68C09K2208/12C09K2208/28
Inventor 何伟王彬成强朱和
Owner SICHUAN WELDON CHEM
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