An operator wanted to improve operational efficiency while developing tight gas reservoirs in Oman. To expedite wellbore cleanup after liner cementing, M-I SWACO recommended WELL COMMISSIONER liner-top test tool, which can displace the well and perform negative inflow testing in the same run.
The WELL COMMISSIONER liner-top test tool enabled the operator to dress off the liner top, polish the bore receptacle, drill out residual cement, perform negative inflow testing, clean the wellbore to depth, and collect all ferrous debris in the same run. The innovative cleanup and testing BHA eliminated the need for controlled displacement and a dedicated packer run, saving the operator a total of 2.6 days of rig time across four wells. After seeing an 11.6% decrease in AFE, the operator awarded M-I SWACO a 3-year contract for work on future wells in the same field.