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Silk Road

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Silk Road | CodyCross

The Silk Road was a vital trade...

(cartoon by Nick Anderson)

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How to Co-Wash Natural Hair Guide

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Enhanced Oil Recovery by polymer injection

Polymer to control the mobility of injected water has been employed for many years in Enhanced Oil Recovery (EOR) applications.

Polymer flooding to improve volumetric sweep efficiency and reduce channeling and breakthrough, has been used by many operators to increase oil recovery. The same polymer can also be used with surfactants and alkali agents to increase the sweep efficiency of these tertiary recovery floods (i.e., ASP, SP and AP). Polymer flooding can yield a significant increase in oil recovery when compared to conventional water flooding techniques. A typical polymer flood project involves mixing and injecting polymer over an extended period of time until a slug volume equal to about 1/3 of the reservoir pore volume has been injected. This polymer slug is then followed by continued long term water flooding to drive the polymer slug and the oil bank in front of it towards the production wells. Polymer is injected continuously over a period of years to reach the desired injected pore volume. The end result being more oil produced in less time.

Quick everyday makeup tutorial for the busy black beauties.

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