Study Of Rock Physics And Seismic Attributes Of Hydrocarbon Reservoirs In Sabah Basin

5th International Conferences on Geological,Geographical, Aerospaces and Earth Sciences 2017

Anak Penguang, Adelynna Shirley^1 ; Lubis, Luluan Almanna^1,2 ; Hermana, Maman^2 ; Ghosh, Deva Prasad^1

Petroleum Geoscience Department, Malaysia^1

Centre of Excellence in Subsurface Seismic Imaging and Hydrocarbon Prediction, Universiti Teknologi PETRONAS, Perak, Malaysia^2

关键词: Effective elastic modulus;    Effective reservoir;    Hydrocarbon reservoir;    Rock physics;    Seismic attributes;    Study areas;    Velocity ratio;    Well-log analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/88/1/012009/pdf
DOI  :  10.1088/1755-1315/88/1/012009

来源: IOP

【 摘 要 】

Elastic moduli are known to discriminate fluid and lithology for effective reservoir characterization. However, in some cases, the elastic modulus can also show the same response for different type of fluid and lithology. In our study area, a few elastic moduli were used to evaluate the hydrocarbon sands, water sand and shale as identified based on well log response. Seismic attributes such as Relative Acoustic Impedance attribute and RMS amplitude attribute are also applied to confirm the well log analysis and investigate the seismic response. Based on the results, the effective elastic moduli for our study area is the Lambda-Mu-Rho, Velocity Ratio (Vp/Vs), Poisson's ratio and Scaled Inverse Quality (Q) Ratio. The seismic attributes such as the Relative Acoustic Impedance highlights the impedance difference between the formations while RMS amplitude shows the hydrocarbon presence. The workflow of this study is applicable for other areas for effective fluid and lithology delineation.