Integration aids for reservoir characterization

摘要

Formation properties such as porosity and fluid saturations control the volume of hydrocarbons that may be stored in a reservoir: Both formation properties such as permeability and fluid saturations and reservoir fluid properties such as viscosity affect producibility, recovery and economics. This information is also required to adequately design and plan production facilities for a reservoir. Nuclear magnetic resonance (NMR) log data can be used to identify porous and permeable zones in addition to identifying reservoir fluids and determining hydrocarbon viscosity. Wireline formation tester (WFT) operations are time-consuming, but optimizing the WFT program can greatly reduce the total time required to acquire measurements. WFT program optimization can be achieved through careful pre-job planning and by surveying only those intervals of the reservoir that are porous and permeable and have sufficient hydrocarbon saturation. Through proper planning, data acquisition and integration, WFT and NMR data prove complementary and aid in the assessment of reservoir producibility.