This paper provides an introduction to the topic of water shutoff and conformance
improvement. After indicating the volumes of water produced during oilfield operations, a …

This review presents our perspective on the factors that have brought polymer flooding to its
current state. Insights are provided on why HPAM is the dominant polymer used as well as …

Enhanced oil recovery (EOR) techniques can significantly extend global oil reserves once
oil prices are high enough to make these techniques economic. Given a broad consensus …

This paper provides an extensive review of the polymer concentrations, viscosities, and
bank sizes used during existing and previous polymer floods. On average, these values …

This paper describes a straightforward strategy for diagnosing and solving excess-water-
production problems. The strategy advocates that the easiest problems should be attacked …

In this paper, we discuss and describe our extensive experience with the widely applied and
quite successful Cr (III)-carboxylate/acrylamide-polymer (CC/AP) gel technology for use in …

High water production is a common problem in mature oil reservoirs. Gel-based treatments
have been widely used as blocking agents to control water production in heterogeneous …

This paper examines the potential of polymer flooding to recover viscous oils, especially in
reservoirs that preclude the application of thermal methods. A reconsideration of enhanced …

This paper investigates the potential of various approaches for improving sweep in parts of
the Daqing Oil Field that have been EOR targets. Possibilities included (1) gel treatments …

The production of excess water during oil recovery creates not only a major technical
problem but also an environmental and cost impact. This increasing problem has forced oil …