Method for stimulation of liquid flow in a well

  • US 5,394,942 A
  • Filed: 11/02/1993
  • Issued: 03/07/1995
  • Est. Priority Date: 11/02/1993
  • Status: Expired due to Fees
First Claim
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1. A method of stimulating a flow of water into a well from water pools in strata surrounding the well comprising the steps of:

  • sealing the well in a manner such that pressurization of the well can be accomplished, introducing liquified carbon dioxide into the well at a down hole pressure such that the liquified carbon dioxide solidifies within the well forming solid carbon dioxide, continuing introduction of the liquid carbon dioxide into the well until a desired level of filling of the well with solid carbon dioxide is attained, allowing the sealed well containing solid carbon dioxide to stand for a time sufficient to sublime the solid carbon dioxide contained in the sealed well, releasing residual pressure in the sealed well and releasing the seal from the well.

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