Abstract
Polymer plays a function in dominating fluidity in poly-surfactant binary flooding. After optimization and screening, the polymer ought to encounter the demands of terrific water solubility, high-pitched relative molecular weight, substantial viscosifying capability, beneficial injection, good salt opposition of solution, nice biological stability, no pollution to reservoir and environment, wide source, easy transportation and low expense. In this paper, a series of laboratory examinations on high-efficiency composite that floods system for Chang 6 reservoir in Ansai oilfield will be implemented , concentrating on improving and dispensing the existent polymer formulation, and building low molecular weight polymer with colloidal morphology, in order to make it suitable for aim constitution.
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