THE ROLE OF SEISMIC INTERPRETATION AT SOUTHWEST ABU SENNAN AREA, ABU GHARADIG BASIN, EGYPTIAN NORTHWESTERN DESERT

Document Type : Original Article

Authors

1 (1) Geophysics Department, Faculty of Science, Ain Shams University, Cairo, Egypt.

2 (2) Naftogaz of Ukraine, Cairo, Egypt.

3 (3) The General Petroleum Company, Nasr City, Cairo, Egypt.

Abstract

Structural interpretation is considered as a conventional method for oil exploration and commonly
used. The use of unconventional methods could lead to achieve significant results and reduce the drilling risk. The
subsurface image is completely objective, while merging the unconventional tool, like seismic attributes and the
conventional seismic interpretation workflow, to highlight the structural elements, which matched together. Also to
identify the general prospective area of interest, the multi-dimensional seismic attributes computation, along with the
use of time slices, are both independent of interpretation.This means that no prior interpretation is necessarily required
and no interpretational bias to the seismic attributes results. Seismic attributes were used to enhance fault image and
enhance the continuity of picked horizons. The main objective of this paper is to determine the structural tectonics of
the study area using, the conventional method combined with the unconventional methods with respecting the
geological backgroundof the study area. Upon the horizon flattening, the encountered pre-Cretaceous faults within the
vertically animated three dimensional seismic cube were better imaged and picked carefully. Drilled Jurassic plays
within Southwest Abu Sennan (SWS) area were dry, due to low structural plays during the Jurassic before the Late
Cretaceous tectonic event which brought the Jurassic rocks high as per the current day situation. AR/”G” Member and
Khoman Formation depth structure contour maps were generated to show the main fault sets, a dominant northwestsoutheast
set and a set trending northeast-southwest due to Syrian arc structure system.

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