Solutions for enhancing oil recovery factor for fractured basement reservoirs of Su Tu Den and Su Tu Vang oil fields
Abstract
The geological characteristics of fractured basement reservoirs of Su Tu Den and Su Tu Vang oil fields are very complicated. Many geological factors, such as the geological heterogeneity that causes separated hydrodynamic blocks, the characteristics and densities of faults and fracture systems, and the presence of edge water drive (aquifer) from Oligocene, may infl uence oil recovery. In order to increase and enhance oil recovery factor for Su Tu Den and Su Tu Vang basement reservois, some solutions are proposed in this paper for limiting the negative impact and enhancing the possitive impact of geological factors such as optimising production well system and production monitoring plan, reducing the invasion of edge water, and intensifying oil recovery in separated hydrodynamic blocks.
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