... rate reinjection flow rate water separation reinjection water flow rate reinjection water drop size oil drop separation and treating upper side clean water production rate oil concentration Introduction Downhole water separation and reinjection can reduce back pressure on the well...

... reservoir conditions anionic surfactant contact angle enhanced recovery interfacial tension live oil ift behavior oil drop yate live oil interaction brine oil recovery wettability ift waterflooding asphaltene upstream oil & gas surfactant concentration interface nonionic surfactant...

... and the contact angle of a crude oil drop on a reservoir rock in several aqueous solutions. Based on the modern digital image acquisition, analysis and processing techniques, the ADSA technique obtains the accurate digital image of the sessile oil drop and accomplishes the relevant measurements. The aqueous...

... was then injected into the cell to form an oil drop on top of tlle needle. The size of the oil drop was carefully controlled by the syringe on the bottom of the cell. The size of tlle needle used in tlle experiment is determined by selecting the one that maximizes the size of oil drops. Pictures were taken at tl10...

.... The adhesion tests further demonstrated that an oil drop could adhere to the crystal surface even after the heavy ends (like asphaltenes) had precipitated within the oil drop away from the interface. This indicated that the heavy ends may not be solely responsible for the interfacial adhesion effects...

...SPE 9405 SPE Society of PetroIeun Engineers of I\IME MOBILIZATION OF AN OIL DROP TRAPPED IN A NONCIRCULAR PORE THROAT UPON CONTACT WITH SURFACTANTS by Alfredo Arriola, Inst. Politecnico Nat. and Inst. Mexicano del Petrol eo; G. Paul Willhite, and Don W. Green, Tertiary Oil Recovery Project ©...