Challenge: Assess the in situ stress regime
of the Barnett Shale and surrounding formations, especially for the potential
of hydraulic fracture growth into the underlying waterbearing Ellenburger
carbonate.
Solution: Measure stress in situ by
performing multiple, precisely placed fracture injections and monitoring
closure with the MDT modular formation dynamics tester in select intervals
isolated with the Dual-Packer Module.
Results: Developed an accurate, continuous in
situ stress profile by calibrating the mechanical properties derived from sonic
log data with multiple stress measurements by the MDT tester to model fracture
geometry and confidently predict fracture height growth.
