RIGLESS CEMENTING TECHNIQUE TO SHUT OFF BOTTOM INJECTION
Tim Brown, John Hagar, Keith Sevin and Dean Soderstrom, Oxy Permian, Billy Ray Smith, Halliburton
Injection and production below the OWC and bottom thief intervals are common problems in many carbonate reservoirs. Conventional methods to remediate bottom water injection are expensive, largely due to well control costs. A method to repair bottom water injection with reduced or eliminated rig costs is presented, along with lessons learned from successes and failures utilizing this methodology. Specialized cements and techniques have been investigated to insure the needed capabilities and attributes for near wellbore repair as well as extensions into channels, fractures, and high permeability streaks. In addition to the injection well work, two successful examples utilizing a similar procedure on producing wells are presented.