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The DAS control system for the inVision spool was rigged up on the LMS sub floor of the snubbing unit. The inVision spool was installed between the stripping rams. This placement enabled the operator to positively identify tubing couplings as they entered the staging section of the stripping BOP stack.
These four wells represented the first time the inVision System was used with this snubbing unit. IWS personnel were on location to guide and assist the HAES crew with the setup and use of the system. The overall rig-up height was approx. 25m (85′) and involved multiple sets of BOPs.
After completing pressure tests on all of the PCE, the crew began snubbing in the strings on each job while staging every tubing coupling using ram to ram stripping techniques. The inVision System allowed the snubbing crew to see that each coupling was placed properly during the staging sequence, preventing unwanted ram collisions and potential pipe damage.
Once the tubing string was deployed, the crew then added the tubing hangers to the top of the strings, and they were also staged through the stripping stack. The inVision System allowed the operator to see detailed dimensional data on the tubing hangers. This ensured proper placement of the hangers during equalization of the staging cavity during hanger deployment. This allowed the crew to avoid any extreme differential pressures during this crucial stage of the trip.
During the course of this job, the ability to transfer information to the crew in real time during trips lessened stress and increased speed of the operations. Having visual and audible alerts to confirm placement of couplings and other string components added value to the overall process.
Intelligent Wellhead Systems would like to thank Chevron Canada and High Arctic Energy Services for having the trust and vision to utilize our systems on a continuous basis.