Seawater-based fracturing fluid and preparation method thereof

A technology of seawater and base pressure, applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve problems such as difficult to meet fracturing construction, and achieve good temperature resistance effect
CN102417814AActive Publication Date: 2012-04-18张春雨
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
张春雨
Publication Date
2012-04-18

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Abstract

The invention belongs to the technical field of development of oil fields, and particularly relates to a seawater-based fracturing fluid which is suitable for preparing sweater and can be used for realizing continuous blending and a preparation method thereof. The seawater-based fracturing fluid is prepared from the following raw materials in part by weight: 0.5-1.5 parts of thickening agent, 0.3-1.0 parts of crosslinking agent, 0.2-0.6 parts of surfactant, 0.01-0.2 parts of pH value regulating agent, 0.01-0.2 parts of viscosity breaker, 46.5-64 parts of seawater and 35-50 parts of desalted seawater. The seawater-based fracturing fluid has the advantages of suitability for preparing seawater, capability of realizing continuous blending, high temperature resistance, high salt resistance, high shear resistance and quick dissolvability.
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Description

technical field

[0001] The invention belongs to the technical field of oil field development, and in particular relates to a seawater-based fracturing fluid suitable for seawater preparation and capable of continuous mixing and a preparation method thereof. Background technique

[0002] In oil and gas exploration and development, fracturing is widely used in the reservoir stimulation of oil and gas wells to achieve the purpose of increasing oil and gas production. Many compositional systems have been used for fracturing stimulation. Among these composition systems, the water-based fracturing fluid system with water as the dispersion medium occupies a dominant position. The hydraulic fracturing based on freshwater system is the whole content of water-based fracturing. However, for offshore oilfields, the supply of fresh water resources is affected by various factors such as space, transportation, and cost, and it is difficult to meet the needs of oilfield fracturing reconst...

Claims

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