Mahdi Heydari1, Mohammad Reza Rezaee2
(1) International Institute of Earthquake Engineering and Seismology, Tehran, Iran
(2) Faculty of Science,University of Tehran, Tehran, Iran
ABSTRACT: Interpretation of 2-D Reflection Seismic
Data and
Seismic
Stratigraphy of Darquain Field, SW of IRAN
The Major objective of this research is seismic
stratigraphy of Darquain Oil field which is located in the south-west of Iran, 45 km of the north-east Abadan.
Seismic
data are collected along 9
seismic
profiles, and there are only three exploration wells in the area. Geologically, the area is located in Dezful depression. The sedimentary basin under investigation formed during lower to middle Jurassic. Major reservoir rocks of the field are Khami and Bangestan groups.
There are no faulting and structure complexity in Darquain field and the field is a gentle anticline with double plunge. General trend of the structure is NE-SW which is different from adjacent structures.
For interpretation of existing seismic
profiles in the area, 11
seismic
surfaces were selected. The time contour maps of the above mentioned surfaces were generated using Geoframe Software.
On the basis of seismic
data, 5
seismic
sequences and 7
seismic
facies were recognized. Correlating the
seismic
profiles, lateral changes of the
seismic
facies were also investigated. This study shows that in the area along the investigated
seismic
surfaces, with increasing carbonate content, the amplitude and continuity of
seismic
reflections increase. Neverthless, the amplitude and continuity of the reflections decrease with increasing the fine sediments content and the porosity of carbonates
This interpretation which are obtained from integration and comparison of seismic
and well data can be utilized for reservoir quality prediction for the area in which there is no well data available.
AAPG Search and Discovery Article #90906©2001 AAPG Annual Convention, Denver, Colorado