This paper presents a three dimensional geological reservoir
model created using stochastic
simulation. The oil field presented is an East African
oil field formed by a structural trap. Data analysis
and transformations were conducted on the properties
before simulation. The variogram was used to
measure the spatial correlation of cell based facies
modeling, and porosity and permeability modeling.
Two main lithologies were modelled using sequential
indicator simulation, sand and shale. Sand had
a percentage of 26.8% and shale of 73.2%. There was a
clear property distribution trend of sand and
shale from the southwest to the northeastern part of a
reservoir. The distribution trend of the facies
resembled the proposed depositional model of the
reservoir. Simulations show that average porosity
and permeability of the reservoir are about 20% and
1004 mD, respectively. Average water saturation
was 64%. STOIIP volume of 689.42 MMbbls was calculated.
The results of simulation showed that
the south eastern part of the reservoir holds higher
volumes of oil. In conclusion, the model gave a
better geological understanding of the geology of the
area and can be used for decision making about
the future development of the reservoir, prediction
performance and uncertainty analysis.
Author(s) Details
Margaret Akoth Oloo
Faculty of Earth Resources, China University of Geosciences,
Wuhan, China.
Congjiao Xie
Faculty of Earth Resources, China University of Geosciences,
Wuhan, China.
View Book :- https://bp.bookpi.org/index.php/bpi/catalog/book/249
No comments:
Post a Comment