Abstract Understanding the formation damage surrounding well during drilling operation is key to predict degree and protect in oil/gas reserviors. Based on core drainage results, we obtained an empirical relationship between invasion volume of fluid permeability reduction formation. Furthermore, equation incorporated into a commercial reservior numerical simulation simulator characterize behavi...

Plankton composition and physicochemical properties of Ajiwa water reservoir were assessed over a twelve (12) month period. The biological parameters determined using conventional methods procedures at three sampling points. outcome was revealed. phytoplankton Chlorophyta (57.66%), Bacillariophyta (25.70%), Cyanophyta (14.73%), Dinophyta (1.91%), with Rotifera (30.55%), Copepoda (29.33%), Proto...

Controlled cerebral ischemia was produced in rabbits by bilateral occlusion of the common carotid arteries and restriction of collateral blood flow by a decrease of the systemic arterial pressure to a desirable level (by hemorrhage into a pressurized reservior system). The following circulatory parameters were simultaneously monitored: systemic arterial pressure (SAP), pressure in the circle of...