06227296 is referenced by 11 patents and cites 11 patents.

This invention provides a method for reducing the water saturation in the near-well region. Along with various well treatment possibilities, one application of this invention increases the injectivity rate of a substantially nonaqueous fluid into a subterranean formation. The preferred embodiment uses this invention to increase the injectivity of solvent gas into an oil-bearing formation for enhancing the amount and/or rate of oil recovery from the formation. The method includes injecting a second fluid into the near-well region of the injection well to displace at least a portion of the water from that region. Displacement of the water and subsequent displacement of the secondary fluid allow maximum injectivity for the primary solvent being injected for oil recovery.

Title
Method to reduce water saturation in near-well region
Application Number
9/426445
Publication Number
6227296 (B1)
Application Date
October 25, 1999
Publication Date
May 8, 2001
Inventor
W Keith Idol
Mandeville
LA, US
Todd R Reppert
Houston
TX, US
Agent
Linda A Kubena
US
Gary P Katz
US
Assignee
ExxonMobil Upstream Research Company
TX, US
IPC
E21B 43/16
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