Keith R. Ferguson
Engineering at Webb Ln, Allen, TX
License number
Louisiana PE.0021761
Issued Date
Mar 27, 1985
Expiration Date
Mar 31, 2017
Category
Civil Engineer
Type
Petroleum Engineer
Address
Address
602 Webb Ln, Allen, TX 75002
Professional information
Downhole Build-Up Pressure Test Using Coiled Tubing
US Patent:
6116340, Sep 12, 2000
Filed:
Dec 24, 1998
Appl. No.:
9/220710
Inventors:
Scott James Wilson - Plano TX
Keith Randall Ferguson - Allen TX
Medhat Mohamed Kamal - Plano TX
Keith Randall Ferguson - Allen TX
Medhat Mohamed Kamal - Plano TX
Assignee:
Atlantic Richfield Company - Chicago IL
International Classification:
E21B 4700
US Classification:
16625017
Abstract:
A method and an apparatus for carrying out a downhole shut-in, pressure build-up test of a formation by lowering a string of coiled tubing having a pressure sensor and a packer thereon through the production tubing of the well. The packer is set to isolated the formation and the pressure is then measured by the pressure sensor. If the well is not flowing due to fluid standing in the wellbore, the well is first unloaded by flowing fluid down the coiled tubing to lift the fluid and reestablish flow into the well prior to setting the packer.