Multifunctional integrated gas well fracturing additive and preparation method and application thereof

Abstract

The invention discloses a multifunctional integrated gas well fracturing additive. The multifunctional integrated gas well fracturing additive is prepared from a component A, a component B and a component C in parts by weight, wherein the component A includes 24 parts of disodium hydrogen phosphate, 5 parts of sodium dihydrogen phosphate, 40-60 parts of water and 3-7 parts of a compatiblility adjusting additive, the component B includes 5-25 parts of a fluorocarbon surfactant, 5-10 parts of methanol, 1-3 parts of dodecyl ethoxy sulfobetaine, 2-4 parts of hexadecyl sulfopropyl betaine, 1-3 parts of dimethyl benzyl alkyl ammonium salt, 5-10 parts of dodecyl dimethyl sulfopropyl betaine and 5-10 parts of alkyl glycoside, and the component C includes 2 parts of methanol, 0.5-3 parts of sophorolipid, 30-60 parts of water, 1-5 parts of dodecyl dimethyl benzyl ammonium chloride, 2-6 parts of isothiazolinone, and 1-2 parts of inorganic salt. The invention further discloses a preparation methodand application of the multifunctional integrated gas well fracturing additive. The fracturing additive has good stability, can realize multiple functions, and solves the compatibility problem of multiple additives.

Description

technical field [0001] The invention belongs to the technical field of fracturing aids, and in particular relates to a multifunctional integrated gas well fracturing aid and its preparation method and application. Background technique [0002] Oil and gas reservoir stimulation is usually improved by fracturing to achieve the purpose of increasing production. For fracturing construction, fracturing fluid is the key to fracturing. At present, fracturing fluid systems include oil-based fracturing fluid system and water-based fracturing fluid system, of which water-based fracturing fluid system occupies a dominant position. For the gas well fracturing fluid system, since the water-based fracturing fluid used in the development process enters the reservoir, it will cause various damages to the reservoir, and the gas well reservoir generally has relatively dense pores, which will affect the increase in production and cause The reduction of economic benefit needs to prevent and pr...

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Problems solved by technology

[0004] Aiming at the defects of the prior art, the present invention provides a multifunctional integrated gas well fracturing aid, which can be added to the fracturing system at one time, avoiding the inconvenience of construction, high economic cost, and poor compatibility caused by the traditional addition of various additives in different periods At the same time, the present invention also provides the preparation method and application of the fracturing aid

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