Structural, Stratigraphic Geology and Pressure Compartmentalization of Feradus Field Based on 3-D Seismic Data and Subsurface Geology
- A. Mira (Sahara Oil & Gas Co) | W. Meshref (Sahara Oil & Gas Co) | Amr M. Radwan (Sahara Oil & Gas Co) | A. Mostafa (Sahara Oil & Gas Co) | A. Rayan (Sahara Oil & Gas Co) | M. Hassanin (Sahara Oil & Gas Co) | A. Saad (Sahara Oil & Gas Co)
- Document ID
- Society of Petroleum Engineers
- SPE North Africa Technical Conference and Exhibition, 14-16 September, Cairo, Egypt
- Publication Date
- Document Type
- Conference Paper
- 2015. Society of Petroleum Engineers
- 5.1.2 Faults and Fracture Characterisation, 7 Management and Information, 2.2 Completion Installation and Operations, 7.3 Strategic Planning and Management, 1.12 Drilling Measurement, Data Acquisition and Automation, 2 Well completion, 2.4.3 Sand/Solids Control, 1.12.3 Mud logging / Surface Measurements, 5 Reservoir Desciption & Dynamics, 5.4.1 Waterflooding, 7.3.3 Project Management, 5.4 Enhanced Recovery
- East Abu Gharadig, Western Desert, Compartmentalization, Abu Roash G, Ferdaus
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- 147 since 2007
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Field development plan is an integration among Geophysical, Geological, Petrophysical and Reservoir Engineering data.
The 3D seismic and wellbore data confirm that the field is composed of complex structures with variable of oil-water contact and differences in pressure surveys.
A major source of these variations is compartmentalization, which is defined as limitation on the ability to produce hydrocarbons resulting from permeability barriers within a field. Two primary causes of compartmentalization. These are Stratigraphic and Structural variations in permeability.
Ferdaus field is located in East Abu Gharadig basin in Western Desert, Egypt. It produces oil from Cretaceous sandstones mainly from three reservoirs: Middle, Lower Abu Roash "G" (A/R "G") members and Upper Bahariya Formation.
In Ferdaus field, Middle and Lower Abu Roash "G" members were deposited as barrier bars according to which the effects of the lateral and vertical sand facies changes within the productive sand intervals, have very limited impact on the pore connectivity based on Electric logs and mud log data. Therefore; the stratigraphic variations were neglected..
Structural compartmentalization, fault properties can constrain the fluid flow and pressure development, thus affecting decisions associated with the selection of the drainage strategy within reservoir management activities in order to maintain the pressure and increase the oil production rate.
By using 3D seismic data, electric logs and pressure data made it possible to sudivide the field into compartments which differ in number based on the reservoir level. This gave good estimates for the Original Oil In Place (OOIP) and reserves which leads to apply a good development plan by infill wells and/or increasing the productivity by applying secondary recovery project (water injection).
|File Size||8 MB||Number of Pages||26|
Harris, S. D., R. J. Knipe, S. Freeman, Z. Khatir, A. Brown, R. K. Davies, and A. Li, 2008, The influence of fault geometric and property uncertainty modeling on reservoir compartmentalization, in Reservoir Compartmentalization: The Geological Society of London Petroleum Group Meeting, 5–6 March 2008, p. 66.