This research focused on re-assessment for Sarhit and shdeha fields in Euphrates
graben.
The two fields is mainly anticline structure which is consist of two horsts Sarhit
and Shdeha fields separated by a graben Sarhit.
Nine wells has been drille
d in Sarhit field, and eleven wells in Shdeha field, all
the wells are producers, except (SHD111).
The research based on new seismic interpretation using GeoFrame program.
Create new velocity models using two different methods (linear regression, V0K
algorithm), using Petrel program.
To confirm the study results, we created geological models for each velocity
model, then calculated the Stuck Tank Oil Initial In Place (STOIIP), and the
recovery factor (RF), for each field.
The first chapter summarized the geology of Euphrates graben, and general
information about the two fields including: the geology of study area and
reservoir properties.
More over the research objectives and the data availability.
The second chapter consist of structural seismic interpretation in terms of
traditional workflow (horizons and faults interpretation), and created seismic
attribute maps.
The third chapter: the waves and seismic velocities overview.
Build velocity models using two different methods: linear regression, v0k
algorithm.
Then for each velocity method, we built geological model, calculated the
STOIIP and RF, for each field.
As a result we have noticed a decrease in the RF for the two fields by using V0K
algorithm, comparing with linear regression method.
Chapter four: results and recommendations
