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Well-Testing System

Halliburton announced the release of the RezConnect well-testing system, a complete well-testing solution for wireless control of downhole drillstem-test (DST) tools (DST) and measurement and analysis of well-test data in real time. Previously, control of DST tools was maintained through annulus-pressure manipulation. The RezConnect system integrates all DST tools and allows surface verification of their operational status. Additionally, it provides acoustic control of DST tools, actuation of downhole fluid samplers, and collection of real-time well-flow measurement and bottomhole-pressure and -temperature data for reservoir-performance monitoring and analysis. Recently, RezConnect was used on a deepwater well in Latin America. During this operation, bidirectional acoustic commands were used across the subsea safety system to operate the downhole test tools and actuate the fluid samplers while providing real-time critical reservoir data and verification of downhole-tool functions to surface. By acquiring real-time data acoustically, the duration of well-test flow and pressure-buildup periods was optimized and the need for acid stimulation confirmed. This allowed for improved well productivity and the ability to evaluate post–stimulation well performance. The enhanced flexibility and control provided by the RezConnect system resulted in rig-time savings of 5 days.

Halliburton’s RezConnect well-testing system. Photo courtesy of Halliburton.

 


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