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Previous HitFaultNext Hit Facies Modeling: Applications in Various Sedimentary and Previous HitFaultNext Hit System Configurations

Muhammad Fachri, Jan Tveranger, Nestor Cardozo, and Sylvie Schueller
Centre for Integrated Petroleum Research, University of Bergen, Bergen, Norway

Previous HitFaultNext Hit facies modeling is the process of generating 3D geological objects in the Previous HitfaultNext Hit envelope in reservoir grid. The modeling is performed to capture reservoir heterogeneity caused by faulting. The conditioning factors for Previous HitfaultNext Hit facies modeling are a Previous HitfaultNext Hit product distribution factor (FPDF, a parameter describing the distribution of lithologies in the Previous HitfaultNext Hit envelope) and a shear strain parameter.

FPDF is generated based on the following variables:
1. Pre-faulting sedimentary facies configuration in the Previous HitfaultNext Hit envelope
2. Previous HitFaultNext Hit displacement model, which is constrained based on the following input variables:
- Previous HitfaultNext Hit core thickness as a function of Previous HitfaultNext Hit throw
- footwall and hanging wall damage zone widhts as functions of Previous HitfaultNext Hit throw
- the displacement percentage accommodated by Previous HitfaultNext Hit core and damage zones
- the type of displacement function

The strain parameter is generated based on the Previous HitfaultNext Hit displacement model. The strain parameter, together with the FPDF, is used for creating the probability distribution that serves as an input in stochastic modeling of the Previous HitfaultNext Hit facies. The Previous HitfaultNext Hit facies volumetric proportion and spatial distribution in the resulting models can be partly controlled by applying simple manipulations to the Previous HitfaultNext Hit facies probability distribution.

The modeling technique allowed many synthetic Previous HitfaultNext Hit envelope models to be built easily by varying the modeling input variables constrained by field data. The resulting models were systematized in matrix form, capturing the variation of both sedimentary and Previous HitfaultNext Hit system configurations. Currently 64 models have been implemented, each executed in 10 stochastic realizations. Quantitative analysis of the implemented models shows that the application of the modeling technique is able to reproduce natural Previous HitfaultTop envelope configurations formed under various sedimentary and structural configurations.


AAPG Search and Discovery Article #90078©2008 AAPG Annual Convention, San Antonio, Texas