2-D SEISMIC REFLECTION INTERPRETATION OF LINE 856-SGR-58 & 846-SGR-50. ROCK PHYSICS ANALYSIS FOR RESERVOIR CHARACTERIZATION & PETROPHYSICAL ANALYSIS OF LOWER GORU BY MAKING CROSS-PLOTS USING WELL DATA

Abstract

The Seismic lines 856-SGR-56 & 846-SGR-50 were given for study. To investigate the lateral and vertical variations of velocity within a layer average velocity and Iso-velocity graphs were prepared. Four reflectors and normal faults are marked. To see reflectors positions and to study theif nature, seismic time and depth sections were prepared which shows Horst & Grabon structures which may be favourable for hydrocorbon. Time and depth contour maps of Basal Sand are also prepared. A descriptive analysis of Rock Physics using TD and RHOB Log Data of DHAMRAKHI#1 well has been made. Rock Physical Properties (e.g. P-wave Impedance, S-wave Impedance, Poisson Ratio, Bulk and Shear Modulus, etc) are calculated for a particular zone whose depth ranges from 2000m to 2900m. Actually this analysis is made to seek for the hydrocarbo'n potential zone using cross plots of different physical properties as mentioned above. These properties (P-wave Impedance, S-wave Impedance Bulk and Shear Modulus) were found high in sand .that must be low in reservoir No reservoir zone was identified.