... miscibility pressure (MMP) ( Srivastava et al. 1994 ). Although a series of CO 2 flooding projects have proved to be successful in tight oil reservoirs worldwide ( Arshad et al. 2009 ; Svec and Grigg 2000 ; Toelle et al. 2008 ; van Vark et al. 2004 ), better gas composition candidates may exist to achieve...

... waterflood performance ( Willhite, 1986 ). Tight and very tight oil reservoirs are often associated with high clay content and significant Cation Exchange Capacity (CEC) values ( Breeuwsma et al., 1986 ). CEC directly influences smart waterflood behavior as it controls ion exchangeability between the solid...

... than 10% ( Shoaib and Hoffman, 2009 ) of the original oil in place (OOIP). Logically, operators have investigated the use of waterflooding to improve recovery in some tight oil reservoirs, but the success has been mixed. Low matrix permeability in some unconventional (tight) oil reservoirs...

... and fracture parameters. enhanced recovery recovery process Modeling & Simulation cumulative oil average permeability oil reservoir recovery Nitrogen Injection injector tight oil reservoir NPV injection fracture reservoir Oil Recovery permeability Upstream Oil & Gas co 2...

... Abstract A successful waterflood can be implemented in a multi-layered tight oil reservoir developed with horizontal multi-fractured wells. This paper forecasts the recovery factor that can be achieved in such a reservoir as well as discusses the challenges of analyzing and modelling tight oil...

...) it is a non-destructive method so that core plugs can be reused to study wettability alteration caused by chemical additives; and (3) capillary pressure, wettability, and relative permeability can be obtained from the same set of measurements. enhanced recovery Brine tight oil reservoir capillary...

... Abstract As a result of poor fluid delivery in tight oil reservoirs, oil production drops rapidly at early stages of depletion development. While water flooding only boosts production to a limited extent, CO 2 miscible flooding seems a promising technique in improving tight oil recovery...

... Abstract The technical challenges regarding re-injection of produced water into tight oil reservoirs are discussed based on commercial experience. This paper demonstrates a successful case study based on a project that launched in 2005. The objective was to treat 320 m 3 /day of produced...

... Additional steps could include: Abstract Low-permeability (tight) oil reservoirs have emerged as a significant source of oil supply in North America. Hydraulic fracturing techniques combined with horizontal well technology have enabled commercial production from oil and gas reservoirs...