With the rapid development of China's society and economy, relevant industries get good opportunities, demand for oil is increasing. The production in oilfield increasing day by day. At present, most oilfields gradually enter middle late stage water injection exploitation, which increases exploitation difficulty reduces amount. In this paper, a comprehensive analysis waterflooding reservoirs re...

This article describes an approach based on artificial neural network to identify waterflooded zone of continental clastic reservoirs. For the logging sequence of waterflooded zone matching the characteristics of the continental oilfield, the application of artificial neural network algorithm is able to distinguish water layers, oil reservoirs and dry layers among reservoirs of waterflooded zon...

Abstract Higher oil recovery after waterflood in carbonate reservoirs is attributed to increasing water wettability of the rock that turn relies on complicated surface chemistry. In addition, calcite mineral reacts with aqueous solutions and can alter substantially composition injected by dissolution. Carefully designed chemical and/or brine flood compositions laboratory may not remain intact w...

Porosity, permeability, and wettability are crucial factors that affect the oil–water displacement process in reservoirs. Under subsurface conditions, integral effects of these extremely difficult to document. In this paper, waterflooding experiments were carried out using a core flooding system monitored with X-ray dual-energy CT. The mesoscale, three-dimensional characteristics water displaci...