Information Required
- 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.
*If available
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