FLAT SPOT EXPLORATION

摘要: The hydrocarbon-brine contact produces a flat reflection, unconformable with the lithologic reflections from trap boundaries, and over limited area bounded by structural contours. When it can be reliably detected mapped, spot provide (i) reasonably unambiguous indication areal extent of reservoir (ii) an estimate thickness. gas-brine in thick reservoirs offshore elastic sections is easiest target. An example gas mapping presented paper. Other represent continuum increasingly elusive targets. Increasing range applicability exploration will require increases signal/noise multiple ratio, three dimensional depth point density (or grid density), increased resolution static dynamic correction accuracy, processing interpretation aimed directly at mapping. Low relief stratigraphic traps should most attractive approach least theoretically feasible, though not necessarily cost effective, for major well-behaved hydrocarbon brine contact.