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AAPG Bulletin, Vol. 90 (2006), Program Abstracts (Digital)

7th Middle East Geosciences Conference and Exhibition
Manama, Bahrain
March 27-29, 2006

ABSTRACT: Building a Discrete Feature Network Previous HitModelNext Hit of Fractures Within the Reservoir Property Previous HitModelNext Hit: Humma Field, PNZ, Kuwait and Saudi Arabia

Sherilyn Williams-Stroud1, Stewart Griest2, and Scott Meddaugh3
1 Midland Valley Exploration Ltd, 14 Park Circus, Glasgow, G3 6AX, United Kingdom, phone: 44 141 332 2681, fax: 44 141 332 2681, [email protected]
2 Chevron Energy Technology Company, 1500 Louisiana, Houston, 77002
3 Chevron International Exploration and Production Company

Fractured reservoir models can be built from static properties or from properties derived from a restoration of the interpreted structural history of the reservoir. Strain-based fracture models ideally require some knowledge of the rock properties at the time of deformation in order to predict fracture orientations and intensity. In order to evaluate the importance of the geologic history relative to measured and known reservoir attributes related to fractures, a Discrete Feature Network (DFN) fracture Previous HitmodelNext Hit was generated from properties defined within the reservoir geocellular Previous HitmodelNext Hit. Fracture orientation properties obtained from selected wells were distributed through the reservoir away from well data locations using an interpolation algorithm. Key wells were withheld from the distribution calculation to test the validity of the distribution of the final DFN. Other properties in the geocellular Previous HitmodelNext Hit, porosity, density, and seismic coherency, were used to constrain fracture intensity and were combined with the fracture orientation properties to generate fractures throughout the reservoir Previous HitmodelNext Hit. Properties calculated from the DFN are output directly into the reservoir property Previous HitmodelNext Hit as properties in addition to existing matrix properties to create a fracture permeability property Previous HitmodelNext Hit ready for input to a flow simulator. Because the calculation is fast, and can be done within the property Previous HitmodelNext Hit, it allows adjustments to be made where needed by using the well production data to constrain the fracture length and aperture values. A fracture Previous HitmodelTop was developed that honors well data that can be used to further develop a field or plan enhanced recovery methods.

 

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