Quaternary ammonium salt type surfactant fracturing fluid
A technology of surfactant and quaternary ammonium salt, which is applied in the field of quaternary ammonium salt type viscoelastic surfactant fracturing fluid, can solve problems such as difficult to meet the effective development of oil and gas reservoirs, and achieve easy industrial production, mild reaction conditions, and a preparation method simple effect
Active Publication Date: 2011-09-14
PETROCHINA CO LTD
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The invention relates to a quaternary ammonium salt type surfactant fracturing fluid which is prepared from the following components in percentage by weight: 0.1-7% of double ionic head group/three ionic head group/four ionic head group quaternary ammonium salt type surfactant, 0.1-2% of salt and the balance of water. The quaternary ammonium salt type surfactant belongs to an amphiphilic structure surfactant; the preparation method is simple, has the advantage of mild reaction conditions, and can easily implement industrial production; and the surfactant has obvious viscoelasticity in a dilute solution, is a low-molecular thickening agent with excellent properties, and can satisfy the demands for high-temperature oil-gas reservoirs of which the oil reservoir temperature is 120 DEG C.
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