Application of pre-stack seismic waveform inversion and empirical relationships for the estimation of geomechanical properties in Ruby field, central swamp depobelt, Onshore Niger Delta, Nigeria
نویسندگان
چکیده
Abstract Pre-stack seismic inversion, well log analysis approach and empirical relations were adopted in this study to better estimate geomechanical properties of Ruby field with minimum error. The use conventional method alone evaluate oil/gas fields sometimes becomes problematic. Geomechanical divided into: elastic moduli [Young’s modulus, shear bulk modulus Poisson ratio ( PR )] rock mechanical strength (closure stress CSR ), brittleness BRI ) compressibility). Four earth models , Young’s generated from the inversion understand distribution across field. results deciphered high Young’s, reservoir zone compared cap/seal rocks a decrease . This implies that, are more ductile less compressible than rocks, indicating that reservoirs highly brittle. result reveals harder fracture has greater chance withstand higher compressive before failing as opposed rocks. inverted model shows increase toward northeastern part field, while southwestern These suggest harder, stiffer, easily fractured found northern eastern southern western is ductile.
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ژورنال
عنوان ژورنال: Journal of Petroleum Exploration and Production Technology
سال: 2021
ISSN: ['2190-0566', '2190-0558']
DOI: https://doi.org/10.1007/s13202-021-01219-w