As the important role of enhanced oil recovery (EOR) in meeting world’s energy requirement is growing, use nanoparticles lieu of, or combination with, existing EOR agents to expand EOR’s applicable range receiving significant attention. Two most actively investigated applications are: 1) wettability alteration by addition into waterflood injection water, and 2) nanoparticle-stabilized Pickering...

This paper discusses many aspects of the application horizontal wells for field development, starting with basic question why to opt this technology. The different considerations be taken into account when dealing technology are reviewed, including some inherent downsides like higher cost and operational complications. main emphasis, however, is placed on practical reservoir engineering aspects...

Low salinity water injection (LSWI) is an emerging way to improve waterflood performance through chemical processes. The presence of clay minerals one the required parameters successfully implement LSWI in sandstone formations. ability clays exchange cations, represented by cation capacity (CEC), leads oil detachment from rock surface and changes formation wettability toward water-wet. There ar...

Nowadays, most oilfields have entered the high water cut stage of waterflood development. The importance oil–water separation technology becomes more obvious. Gravity is one commonly used treatment techniques for produced fluid. gravitational separator has a large processing capacity and wide application range, but its structure relatively simple efficiency gradually falls behind to meet curren...

In this paper, the role of molecular diffusion in mobilization of waterflood residual oil is examined. A moving mesh method is applied to solve the moving interface problem of residual oil blobs swelling by Co2 diffusion through a blocking water phase. The results of this modeling are compared with experimental results of a 2D glass micromodel experiment. Although, the solution method is applie...