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7th Middle East Geosciences Conference and Exhibition
Manama, Bahrain
March 27-29, 2006
1 Study Group DSC 72, Petroleum Development Oman, PO BOX 81, Muscat, 113, Oman, phone: (+968)
24672514, fax: (+968) 24672615, [email protected]
2 Shell International
Exploration
and Production, Carbonate Team, Kessler Park 1, Rijswijk, Netherlands
3 Shell International
4 Ipedex Abu Dhabi
A large proportion of Petroleum Development Oman (PDO) future production resides in fractured reservoirs. In order to
support the development of these volumes, a strong element of fracture characterisation and modelling has been included
within a number of subsurface studies. The key enabler for these studies is the software technology, SVS (Simple
Visualisation Software), developed by the Carbonate Development Team (CDT), in Shell EP-Research. PDO has not only
taken a lead role in software implementation but is also steering the ongoing development of SVS according to the needs of
active field studies. Currently, SVS is applied to the three themes of Oman's fractured reservoirs: (1) slightly fractured
containing light oil (2) medium/highly fractured containing light oil and (3) highly fractured containing medium -heavy oil. The
key pillar of the SVS
workflow
is a detailed fracture characterisation which leads to the elaboration of a series of conceptual
models which capture the range of the subsurface uncertainties. Once the conceptual models have been developed, these
can be transformed into discrete fracture models with attached attributes (such as permeability anisotropy, fracture spacing
etc). These models maybe transformed into reservoir simulation properties as per study requirements. This paper has for
main objective to illustrate the SVS
workflow
with particular emphasis on the borehole image analysis and the use of a web
based sandbox model database, to help constrain the fault geometries and the
structural
understanding of the fields.