Etude statistique des paramètres pétrophysique du champs Rhourde Chegga (Sud-Est Algérien

Abstract

The hydrocarbon reservoir of the Rhourde Chegga region is located north-east of Hassi Messoud, this zone contains 27 wells. the latter has been subdivided based on the study Sedimentology (sieve) into a plurality based tank top: quartzite sandstone Ordovician (quartzite Hamra) and sandstone of Triassic age (sandstone DRC and T1). The logs in these wells measured several petrophysical parameters (porosity, permeability, water saturation, clay volume, and thorium). Statistical analysis of mono-variate , bi-variate and multivariate (ACP) data showed the homogeneity of petrophysical parameters except permeability. A correlation (porosity, permeability) was detected as well as that (volume of clay, thorium). AFD at level of well 10 showed a confusion of belonging of the samples between T1 and GRDC.