Title

Selective Water Shutoff Technology Study and Application of W/O Emulsions

Abstract

A new emulsifier PN-1 was synthesized. The crude oil of Jinzhou oilfield could be well emulsified by PN-1. The activated crude oil forms water/oil emulsion below 80% water-cut. Coreflood experiments were conducted to demonstrate the selective placement of the activated crude oil. Water shutoff operations using this new technique were conducted in Liaohe oil field of CNPC, resulting in 167,000 ton of incremental oil a 295,000 cu m of reduced water. The activated viscous crude was a selective water plugging agent, and could be successfully bullheaded into the formation without damaging non-target oil zones.

Meeting Name

SPE/DOE Improved Oil Recovery Symposium (2000: Apr. 2-5, Tulsa, OK)

Department(s)

Geosciences and Geological and Petroleum Engineering

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2000 Society of Petroleum Engineers (SPE), All rights reserved.

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