Efficient composite viscosity reduction agent for viscous oil recovery
A viscosity-reducing agent and high-efficiency technology, applied in the direction of drilling compositions, chemical instruments and methods, etc., can solve the problems of difficult control of emulsion stability, poor biochemical degradation performance, large amount of water, etc., to increase post-treatment of crude oil Stable pressure, stable performance, improved obvious effect
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[0015] 1. According to the mass ratio, it is 10% sodium dodecyl sulfate, 5% sodium dodecylbenzenesulfonate, 13% alkylphenol polyoxyethylene ether, 15% polyacrylate, and 57% water. The several kinds of raw materials are mixed and stirred to obtain a high-efficiency composite viscosity reducer for heavy oil recovery. Using Shengli Oilfield as a viscosity reduction test for heavy oil, the viscosity reduction rate reached 98%.
[0016] 2. According to the mass ratio, it is 15% of sodium dodecyl sulfate, 10% of sodium dodecylbenzenesulfonate, 15% of alkylphenol polyoxyethylene ether, 30% of polyacrylate, and 30% of water. The several raw materials are mixed and stirred to obtain a multi-effect viscosity reducer for heavy oil recovery. Viscosity reduction test for heavy oil in Karamay Oilfield, the viscosity reduction rate reached 98%.
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