Print this pageA. W. Martinus, R. Mjos, M. C. Devilliers, M. Grausem, J. Hegre, J. Herbas, Y. Kremer, R. Krigsvoll, M. Levret, A. Linjordet, J. P. Maret, and X. Mathieu
Sincor, Av. Francisco Solano, Edf. Centro Empresarial Sabana Grande, Caracas 1050, Venezuela
ABSTRACT: Horizontal Well Positioning in a Fluvial Reservoir: The Role of Reservoir Characterization and Geomodelling(Oficina Formation, Sincor, Faja del Orinoco, Venezuela)
Development of the lower interval of the Oficina Formation in the Sincor Field (Faja del Orinoco, eastern Venezuela) is particularly challenging due to the combination of a high average N/G (ca. 0.7), formed by a fluvial succession of highly permeable unconsolidated sands, and high-viscous oil (average API 8.3°, viscosity 1600-2700 cp). Positioning of horizontal wells has to fulfill stringent criteria in order to maximize production. In the first phase, a total of about 250 horizontal wells are planned to reach production plateau.
The integration of exploration and production well data through building 3D geomodels contributes to a more accurate interpretation and evaluation of the reservoir. A multi-disciplinary approach guarantees a more efficient workflow, quicker and better-adapted decisions, enhanced QC, and significant cost savings. Geomodelling is extensively used to evaluate cluster development plans, calculate full field P10, P50 and P90 production profiles, and evaluate uncertainties.
AAPG Search and Discovery Article #90906©2001 AAPG Annual Convention, Denver, Colorado