Existing fractured gas reservoir development techniques are mainly based on dual medium numerical-simulation models, which can, to a certain extent, effectively simulate natural fractures with high fracture density; however, these models have some limitations, particularly in terms of simulating the morphology and distribution. Considering carbonate reservoirs complex fractures, this paper, we ...

Abstract The drilling engineers favor a quantifiable understanding of the subsurface overpressure zones to avoid hazards. conventional pore pressure estimation techniques in carbonate reservoirs are prone uncertainties that affect calculated model resolution and still far from satisfactory. Basically, reservoirs, effect chemical process cementation on porosity is more important than mechanical ...

Proper determination of bed boundaries in layered reservoirs is vital ‎for accurate petrophysical interpretation of conventional logs. In the ‎wellbore, logs continuously measure physical properties of reservoir ‎while the properties change stepwise. This continuous representation ‎of logs may lead to ignorance of some high potential reservoir zones. ‎The main reasons for continuous nature of l...

Permeability, the ability of rocks to flow hydrocarbons, is directly determined from core. Due to high cost associated with coring, many techniques have been suggested to predict permeability from the easy-to-obtain and frequent properties of reservoirs such as log derived porosity. This study was carried out to put clustering methods (dynamic clustering (DC), ascending hierarchical clustering ...

Efforts to enhance oil recovery through wettability alteration by nanoparticles have been attracted in recent years. However, many basic questions have been ambiguous up until now. Nanoparticles penetrate into pore volume of porous media, stick on the core surface, and by creating homogeneous water-wet area, cause to alter wettability. This work introduces the new concept of adding ZnO nanopart...

© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim 1 wileyonlinelibrary.com to modify wettability within micromodels to mimic the reservoir’s wettability.[16–19] Previous micromodels have mostly been made of glass,[7,8] silicon,[9,19] and polymeric materials[10–18] instead of real rock.[20,21] As a result, they have limitations in studying geochemical fluid–rock interactions, such as acid fractu...