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Geological modeling of the miocene sand with reference to OIIP estimation for Gau Trang Field, Cuu Long Basin | |
Author | Le Minh Hai |
Call Number | AIT RSPR no.PME-GEPG-12-05 |
Subject(s) | Geological modeling--Cuu Long Basin (Vietnam) Reservoirs--Cuu Long Basin (Vietnam) |
Note | A research study submitted in partial fulfillment of the requirements for the degree of Master Engineering (Professional) in Geo - Exploration and Petroleum Geo - Engineering |
Publisher | Asian Institute of Technology |
Series Statement | |
Abstract | The Gau Trang Field is located in the northern part of Cuu Long Basin approximately 100km southeast of Vung Tau. The field was discovered in 2005 and seven wells were drilled during the exploration and appraisal period. Thin reservoir intervals contributed to the oil production of this field. The Gau Trang Field is comprised of numerous separate fault block reservoirs of Early Miocene and Upper Oligocene age. The reservoirs are confined to some small areas over the field and composed of normally pressured, vertically stacked sand layers . Understanding the geology of the reservoir to build geological model is the key point to maximize the chance of success . Various tasks have been done,including seismic interpretation, well log analysis. Based on the reprocessed seismic data, the main structure surface and fault system of the oilfield were found and used in building the structural model , laying foundations for rock distribution and petrographic parameter model. Rock is classified into different rock types according to V shale content . This kind of classification can reflect a different absorption value of each rock type. Sequential Indicator Simulation method, which can reveal the heterogeneous porosity and also show that the oil seams are not vertically - connected, is applied to classify rock. The petro physical parameter model is built for each parameter: porosity, and water saturation with comparison to rock model. The parameter models can reflect rock quality. They match the oil seam checking at the exploited oil wells. The Sequential Gaussian Simulation method is used for porosity models. Water saturation are based on the equation of water saturation with oil column. The resu lt s of geological modeling were used to calculate OIIP for the field development , which is estimated a bout 58. 19 MMstb of OIIP for the 100mx100m cell size and 41.56 MMstb of OIIP for the 250mx250m. |
Year | 2013 |
Corresponding Series Added Entry | |
Type | Research Study Project Report (RSPR) |
School | School of Engineering and Technology (SET) |
Department | Department of Civil and Infrastucture Engineering (DCIE) |
Academic Program/FoS | Geotechnical Engineering and Management (Master Engineering (Professional)) (PME - GEPG) |
Chairperson(s) | Giao, Pham Huy |
Examination Committee(s) | Noppadol Phien-wej;Jang, Seonghyung |
Scholarship Donor(s) | Hoang Long Hoan Vu JOCs,Vietnam |
Degree | Research studies project report (M. Eng.) - Asian Institute of Technology, 2013 |