On the Method of Preparing Paleotopographic Maps of Synsedimentary Rises for Purpose of Predicting Deposits of Oil and Gas in Pliocene Productive Beds, Apsheron Oil and Gas-Bearing Regions

T. S. Shakhsuvarov

Many structural and stratigraphic traps which contain deposits of oil and gas in middle Pliocene beds (Binaghadhy, Sulutepe, Gala folds) are connected with the synsedimentary rises of the Apsheron oil and gas-bearing region. Paleotopographic maps of these anticlines in this region are of practical interest. For this purpose, we determined the length and real position of the sections by determining the angles of repose of underwater sediments and corresponding sections of the limb of the fold, visible on the lithofacies map. Thus, the profile contour of the studied synsedimentary anticline was gradually reconstructed.

Analogous work restored the profile contours of the other sections of the fold. We then cut these contours by the horizontal flatnesses carried out through the definite interval. Where these traces cross the profile contours is conditionally designed on the leveled surface of the ancient water, after which we draw the paleobathymetry through the points of the same value and draw the paleotopographic map of the synsedimentary anticline.

AAPG Search and Discovery Article #91032©1988 Mediterranean Basins Conference and Exhibition, Nice, France, 25-28 September 1988.