Method for retarding water coning

Details Method for retarding water coning Method for retarding water coning

1994-12-19

1996-06-25

Suchfield, George A.

Wells

Processes

Cementing, plugging or consolidating

166306, E21B 33138, E21B 4332

Patent

active

055291244

ABSTRACT:
A method for retarding the effect of water coning during the production of oil from a subterranean formation is described. The retarding occurs by injecting into the subterranean formation, at or below the oil/water interface, a polymer solution having a viscosity at least twice that of the connate water to form a zone of high viscosity about the wellbore during the oil production.

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patent: 4095651 (1978-06-01), Chauveteau et al.
patent: 4147211 (1979-04-01), Sandiford
patent: 4718491 (1988-01-01), Kholer et al.
"Polymer Flooding Technology-Yesterday, Today, and Tomorrow", Journal of Petroleum Technology, H. L. Chang, SPE-AIME, Cities Service Oil Co., Aug. 1978.
"Numerical Simulation Study of Water Shut-Off Treatment Using Polymers", R-N. R. Hwan, Texaco Inc., SPE 25854, Presentation-SPE Rocky Mountain Reg./Low Permeability Reservoirs Symposium, Denver, CO, USA, Apr. 12-14, 1993.

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