Alcohol-base fracturing fluid

A fracturing fluid and alcohol-based technology, applied in the field of fracturing fluids, can solve the problems of fracturing reconstruction failure, increase formation damage, formation pore blockage, etc. Effect
CN1329474CInactive Publication Date: 2007-08-01CHANGQING GASOLINEEUM EXPLORATION BUREAU
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
CHANGQING GASOLINEEUM EXPLORATION BUREAU
Publication Date
2007-08-01
Estimated Expiration
Not applicable Β· inactive patent
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Abstract

An alcohol-based fracturing liquid for oil or gal well is prepared from low-carbon alcohol and its thickening agent, water, cross-linking agent, degelating agent, pH regulator and surfactant. It can remove the water locking in stratum, so benefiting the return of liquid from stratum.
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Description

1. Technical field:

[0001] The invention relates to a fracturing fluid used in the fracturing stimulation process of an oil well or a natural gas well, specifically an alcohol-based fracturing fluid. 2. Background technology:

[0002] In the existing technology, at present, more than 90% of the fracturing fluids used in the fracturing reconstruction of oil and gas fields are water-based fracturing fluids with water as the dispersion medium. For characteristic oil and gas formations, water-based fracturing fluids have fatal flaws: because the formation pressure coefficient is much lower than the pressure coefficient of water in the wellbore, it is easy to cause difficulty in liquid flowback and increase damage to the formation; due to the formation water lock It is easy to cause the clogging of formation pores and make the fracturing stimulation invalid. 3. Contents of the invention:

[0003] The purpose of the present invention is to provide an alcohol-based fracturing fl...

Claims

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