... Abstract Compared with conventional onshore oilfields, offshore oilfields have problems such as incomplete well pattern, large well spacing, strong heterogeneity, and high crude oil viscosity. Conventional chemical flooding methods have limited ability to control and drive, and relying...

... & gas conformance improvement conformance control concentration permeability difference enhanced recovery injection pressure nanosphere solution water management oilfield oil field nanosphere application injection microsphere particle full-scale implementation reservoir nanosphere...

.... The first large commercial polymer flooding in China started in Daqing oilfield, which has been remained the largest application in the world. However, encouraged by the conventional field applications and new findings of polymer's viscoelasticity effect on residual oil saturation (ROS) reduction, some high...

... Abstract There is abundant heavy oil resource in Bohai oilfield, and only limited resource could be exploited with cold production technologies. Though cyclic steam stimulation is one of the most widely used and effective technology for onshore heavy oil exploitation around the world...

... heavy oil and improve the micro-displacement efficiency, and the contribution rate accounted for about 28% of the total recovery. This obvious effect has been successfully achieved in pilot test of both S Oilfield and D Oilfield. By applying activator huff and puff in S Oilfield for 14months, the total...

... Abstract Steam huff-and-puff pilot has been conducted for 2 horizontal wells in Bohai Oilfield since 2011 with total enhanced production of 14.5×10 4 bbl in comparation with cold production. However, owing to limitations of the platform space and wellbore configuration characteristics, real...

... Abstract Alkaline-surfactant-polymer (ASP) combination flooding field tests showed that it could significantly enhance oil recovery for high water cut mature oilfields in China. The main problem in ASP flooding was the difficulties in lifting system and produced liquid treatment process due...

... Abstract Shengli oil field, located in Northeast China, is one of the largest and oldest oilfields in China. The field production peaked in 1991 and the overall water cut has reached 95% in 2012. The decline in production and the increasing demand for fossil energy have motivated the Shengli...

..., operations and performance data in the Oman desert environment, integration with oilfield operations and an update on results at the time of publication. According to industry forecasts, the GCC region faces a significant shortfall of gas supply. In Oman today, over 22% of gas consumed is used for oil...