A kind of fracturing fluid and preparation method thereof

Abstract

The invention discloses a fracturing fluid and a preparation method thereof, belonging to the technical field of fracturing. The fracturing fluid includes the following components in mass percentage: 0.5%-4% of surfactant, 0.15%-2.5% of counter ion salt, 0.01%-2% of clay stabilizer, and the balance is water; the surfactant is composed of allyl Prepared by the quaternization reaction of alkyl halides and alkyldimethyl tertiary amines; the counter ion salt is phenylsulfonate. The surfactant used in the fracturing fluid is prepared by quaternization reaction of allyl halide and alkyl dimethyl tertiary amine, the reaction raw materials are cheap and easy to obtain, the reaction conditions are mild, and the reaction process is simple and easy to operate. The formed surfactant is simply compounded with the counter ion salt, which can form a viscoelastic fluid with high resistance reduction rate, and its synergistic effect with clay stabilizer and water, the formed fracturing fluid system can be used to treat Oil and gas wells are fractured to achieve excellent stimulation effects.

Description

A kind of fracturing fluid and preparation method thereof technical field [0001] The present invention relates to the technical field of fracturing, in particular to a fracturing fluid and a preparation method thereof. Background technique Hydraulic fracturing is an important measure for oil and gas well stimulation, and it utilizes high-pressure equipment to carry fracturing agents such as ceramsite. The fracturing fluid is injected into the formation to communicate the oil and gas layers and expand the drainage area, so as to achieve the purpose of increasing the production of oil and gas wells and improving the recovery factor. flow The high-speed flow of the body in the pipeline enters a turbulent state, which will generate a large frictional resistance, and part of the energy loss provided by the ground high-pressure equipment It is consumed in the pipeline, wastes the power of the pump, and shows high friction in the macroscopic view. In order to transfer the e...

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Problems solved by technology

[0005] The synthesis process of the above surfactants is complicated, and the synthesis conditions of some surfactants such as erucamide betaine are relatively harsh

Polymers dissolve slowly and are difficult to degrade in the formation, potentially causing reservoir damage

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