The use of polar angle, polar arm and other physical attributes in rock characterization

摘要

Sandstone reservoirs and other rock type properties can be variable from the time of deposition up to their burial. Rock texture and structure in addition to diagenetic changes control the reservoir characteristics, fluid flow and accumulation during the sediment burial process. In this study, investigation is concerned with the determination of selected samples petrophysical characteristics and their relation to some of the physical properties. These properties constitute an essential constraint. Particular focus will concentrate on the determination of the reservoir characterization and their correlation to the determined polar angle and polar arm. Accomplishment of this target is accustomed to the determination of other physical attributes properties. Among targeted attributes state the rock quality index (RQI) associated to the flow zone indicator (FZI) and the fractal dimension ( D f ). The overall is intended to make an attempt for reservoir description leading to its qualitative and quantitative assessment. Thus, the anticipated rock and fluid properties including polar angle and polar arm parameters are of fine prediction towards reliable information on the considered samples. As a result, in the case study, aimed factors have proved diverse statements. They were of a big contribution towards the reservoir quality index, its heterogeneity and the rock type porosity. They were also of big interest in proving the fluid flow circulation rate and storage.