Abstract Surfactants formulated into oil-based mud can adsorb to pore surfaces causing changes in rock wettability, which are widely believed impair formation permeability when invades the near-wellbore region. In present study, effects of with Versawet and Versacoat surfactants, on petrophysical properties wettability drilling cutting samples from sandstone reservoirs were investigated through...

Abstract Gamtoos Basin is an echelon sub-basin under the Outeniqua offshore of South Africa. It a complex rift-type basin with both onshore and components consists relatively simple half-grabens bounded by major fault to northeast. This study mainly focused on evaluation reservoir heterogeneity Valanginian depositional sequence. The prime objective this work generate 3D static model for better ...

The need to identify the major parameter with an overwhelming impact on estimated hydrocarbon volume has been a challenge for stakeholders in oil and gas industry. To address this challenge, investigation of depositional facies petrophysical parameters was carried out field located within Niger Delta using 3D geologic models. Different modeling techniques were employed study; each technique pro...