Geomechanical Cavern Modelling

• Geomechanical testing reports
• All available wireline logs (cavern and offset wells)
• Surface and downhole caverns map with detail downhole and surface distances between them
• Directional survey (digital)
• Actual sonar (digital)
• Production casing information (type, grade, weight, threads)
• Information about any casing damage
• Last MIT report
• Hydrogeology
• Mineralogical, core reports
• Drilling reports (with focus on: drilling problems, tight hole, water inflow)
• Any other known operations that may affect geomechanical results.

Geomechanical analysis will be carried out in the following steps:

• Building of 3D model (one cavern of group of caverns) based on stratigraphic and petrological data included in geophysical logs,
• Model calibration with use of geomechanical parameters from rocks laboratory tests,
• Evaluation of cavern stability and integrity,
• Evaluation of cavern closure and casing strain,
• Modelling of multiple caverns interactions,
• Evaluation of surface subsidence,
• Final report preparation.

Expected time of realisation: 10 weeks (single cavern), 13 weeks (group up to 5 caverns), 13-17 weeks (group up to 15 caverns). More than 15 caverns – time is negotiable