Gas and oil production will alter the surface gravity, which we monitor by high-precision repeat gravity measurements. Changes in reservoir pressure will cause deformations and vertical surface movements, usually subsidence.
Quad Geometrics measures this with mm precision, on land or at the seafloor. We offer measurement in cold climate, and in challenging environments like sea-ice or glacially covered areas, by adjusting the instrumentation and field work accordingly. Monitor data can help optimize reservoir operations, field management, and thus reduce cost and increase recovery. Gravity and subsidence monitoring may also detect hydrocarbon leakage out of the reservoir, to shallower subsurface levels.