Oilfield services company Halliburton introduced the Xtreme Single-Trip Multizone (XSTMZ) system for completing wells in deepwater and ultra-deepwater conditions up to 15,000-psi, to be used by a major operator in the Gulf of Mexico in 2020.
Based on Halliburton's existing 10,000-psi rated Enhanced Single-Trip Multizone (ESTMZ) system, the increased pressure rating of the XSTMZ system allows operators to isolate and frac pack multiple zones at higher pump rates with larger proppant volumes. It also supports the ability to create zonal compartments for better stimulation of long pay zones that have high-pressure differentials between them, Halliburton said.
The increased capability of the XSTMZ system helps increase production and total recovery by driving down abandonment pressure and can save rig time by isolating and treating several intervals with a single trip, the company added.
Halliburton revealed that a major operator looking to improve stimulation and gravel packing of long pay zones in Gulf of Mexico’s Lower Tertiary has ordered the XSTMZ system to complete multiple reservoirs that are experiencing very large bottomhole pressure differentials due to the depletion of some of the reservoirs. The operator plans to begin installing the equipment needed to complete two wells in 2020.
“The introduction of the 15,000-psi rated XSTMZ system allows us to maximize production in even more challenging formations while further reducing the time required to complete these wells versus conventional systems,” said Mark Dawson, vice president of the Completion Tools business line. “The success of our ESTMZ system has helped operators complete over 200 independent zones globally, and we are pleased to see our engineered completion solutions continue to meet our customers’ needs in ultra-deep water.”
