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Fracture Modelling Guided by Seismic Attributes, Teapot Dome, Wyoming
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 78th EAGE Conference and Exhibition 2016, May 2016, Volume 2016, p.1 - 3
Abstract
Fracture modeling based only on well data can be subject to large uncertainties. This is especially the case when only few wells are available for controlling the modeling process. This study is based on the observation that fractures generally occur in the vicinity of faults. The dataset is from the Teapot Dome, Wyoming and consists of 4 wells with fracture information and 3D seismic. The workflow involves the derivation of seismic volume attributes in order to define the fault pattern. The orientation of the extracted faults is compared to the observed fractures at the wells. The seismic attributes showing a reliable fault pattern are converted into a fracture density cube, which is used for guiding the fracture modeling. The result is compared to the fracture model generated by the standard procedure, which interpolates the fracture intensity of the wells using sequential Gaussian simulation. The results are compared in terms of up-scaled fracture properties porosity and permeability. These properties are averaged over the reservoir zone. Large differences exist between the standard and the seismic attributes based fracture models in the vicinity of the faults and along the fold hinge.