Successful operation highlights tool’s robustness and reliability
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Operator requested pressure test at maximum pressure rating of RTTS® packer
Middle East
Provide reliable retrievable packer to perform high-pressure test to 7,500 psi to confirm integrity of shallow casing transition crossover
A major operator in Middle East often deploys RTTS® packers for casing integrity tests in both oil and gas wells. However, the operator requested a critical pressure test for a high-profile, offshore gas well to confirm the integrity of 10 3/4- × 9 5/8-in. tapered intermediate casing recently installed. The operator’s specific concern was the integrity of the crossover between the two casing sizes. Standards require a reliable 9 5/8-in. packer to withstand a 7,500-psi pressure test for 30 minutes.
It is common for operations performed in this region to require a maximum pressure test between 1,000 and 3,000 psi. However, this well was in a field with special requirements of a high-pressure test in the TCA up to 7,500 psi. At this point, there was not an extensive run history with a 9 5/8-in. RTTS packer deployed for casing tests to 7,500 psi, which is the maximum pressure rating of the packer.
Halliburton proposed to set a 9 5/8-in. RTTS packer with an SSC valve below the crossover connection at 1,200 ft (107°F). To test the crossover, pressure in the TCA was increased in 500-psi increments to the maximum rated pressure of 7,500 psi.
in. packer set at 1,200 ft
Increased in 500 psi increments
Minute pressure test at minimum rating
Pulled out of hole in great condition
Halliburton met the operator’s objective with a 30-minute pressure test at the maximum pressure rating. The RTTS® packer was then pulled out of hole (POOH) in great condition, which emphasizes the reliability and robustness of this tool at maximum rating without issue.
Isolate portions of the well to perform remedial repairs in versatile and economical ways.
