Production-Induced Stresses from Timelapse Timeshifts – A Geomechanics Case Sstudy from the Franklin Elgin Fields

摘要

This paper is a geomechanics case study in which timelapse timeshifts have been accurately measured over the producing HP/HT Franklin and Elgin gas condensate fields then inverted to production-induced stress and strain changes throughout the reservoir, overburden and underburden. The interpretation of the result can be used to constrain the coupled reservoir-geomechanical model with the objective of enhancing its capacity to detect parts of the reservoirs that have not been depleted, explaining casing integrity problems and anticipating potential wellbore instability problems on infill wells.