... Abstract There exists little or no core laboratory data needed for dynamic measurements-to-static elastic moduli calibration in most of the offshore fields in Niger Delta Basin. Wells are planned or drilled with little or no geomechanics inputs. Oftentimes, this has led to wellbore instability...

... upstream oil & gas sediment saturation otc 19489 moduli hydrate accumulation moridis hbl elastic property geophysical method gas hydrate amplitude hydrate saturation hydrate OTC 19489 Feasibility of Monitoring Gas Hydrate Production with Geophysical Methods Michael B. Kowalsky, Seiji...

... moduli cohesion hydrate deposit friction angle correlation matrix hydrate calculation hydrate saturation marine sediment log analysis unconfined compressive strength pore space upstream oil & gas well logging reservoir characterization sediment gas hydrate mechanical property OTC...

...). However, velocity does not uniquely indicate pore pressure because it also depends, among other factors, on porosity, mineralogy, and texture of rock. compressional mpa porosity sandstone moduli offshore technology conference upstream oil & gas overpressure detection joel wall gary...

... modulus. This also implies that the dynamic modulus does not depend on the strain amplitude ( =0). - The upward dynamic modulus (+ e) is only slightly higher than the downward dynamic modulus (- e). For simplicity, only the upward moduli are dealt with in the rest of the paper. - There are two separate...

... and dense sands are compared with the empirical relationships derived from single-leg test results [6, 7]. loading moment-rotation response preload rotational modulus spud 2 upstream oil & gas stiffness moduli otc 7303 spud osborne fixity equation kpa secant fixity preload stress...

... ABSTRACT In situ testing to determine shear moduli of soil is presently not performed in offshore geotechnical investigations because of the lack of a production-type method. Limitations of existing onshore seismic methods which generally preclude the use of these methods in offshore...

... by virtually all reasonable models of soil properties. The antisymmetric model, Fig 3a, likewise re- quires that the soil properties be symmetric about both boundaries. This condition is satisfied only for certain models of the soil properties. In particular, if the soil moduli depend only on the changes...