... incorporates rock and fluid property measurements and compatibility assessments between rock, reservoir fluids and frac fluids at the laboratory scale. sedimentary rock multistage fracturing equation of state geology mudrock clastic rock waterflooding geologist formulation rock type mudstone...

... polymer buffer viscosity lead to increase in water cut. Besides, the chemical quality monitoring, supply chain management were the challenges to be addressed before full field expansion. The re-optimization of chemical formulation is also performed in lab to mitigate the detrimental effect of alkali...

... geology surfactant flow in porous media rock type sedimentary rock carbonate rock mineral chemical flooding methods core analysis formulation salinity concentration wettability alteration enhanced recovery brine permeability spontaneous imbibition pw 40 cationic surfactant experiment...

... compared to waterflooding. However, injecting a viscous polymer solution can reduce injectivity over time due to presence of near wellbore residual oil. The objective of this study is to identify promising surfactant formulations and test them in porous media to solubilize near wellbore oil to enhance...

... demonstrated that water softening costs could be offset by reduced surfactant adsorption and polymer requirements and that the absence of divalent cations simplified formulation requirements, enhancing the feasibility of ASP is not such in practical implementations. Despite dispersivity analysis is established...

... surfactant al1 foam defoamer formulation Introduction Emulsions are unstable dispersions of two immiscible fluids. Foams are dispersions of gas in surfactant. Both systems are dispersions, and these dispersions are stabilized by diverse types of emulsifiers such as surfactants, polymers, proteins...

... Abstract The goal of this work is to develop alkaline-surfactant-polymer (ASP) formulations for a shallow, clayey sandstone reservoir. Commercially available surfactants were used in the phase behavior study. The gas-oil-ratio (GOR) was low; the phase behavior and coreflood study was conducted...

... for liquid rich shale reservoirs. chemical flooding methods reservoir characterization sagd flow in porous media thermal method conformance improvement waterflooding steam-assisted gravity drainage dodecane fluid formulation fluid dynamics co 2 complex reservoir upstream oil & gas...

... Abstract The effectiveness of a low complexity chemical flooding formulation that was developed for application in offshore environments was evaluated in a single well test offshore South China Sea. The SP formulation uses seawater with no additional water treatment beyond that which...

... Abstract Good phase behavior is critical for identifying high performance surfactant formulations for coreflood recovery. For conventional CEOR projects, good phase behavior entails high solubilization parameters, rapid equilibration to low viscosity microemulsions and aqueous stability...

... oil from oil-wet tight pores. A thorough lab program was designed to develop a wettability altering surfactant formulation and was validated with corefloods and spontaneous imbibition tests at reservoir conditions. Surfactant injection trials at smaller scale were conducted first which were successful...

... Abstract The paper discusses the alkaline surfactant polymer (ASP) flood pilot design including formulation development, pilot area selection, well and pattern type, slug size and sequence, slug viscosity etc for the Bhagyam field. It also discusses the various lab, well and reservoir...

... Abstract This paper discusses surfactant, co-solvent, alkali and polymer (ASP) formulations developed for the Kuparuk Field in Alaska. This field is a mature conventional reservoir that exhibits favorable characteristics for surfactant flooding. The formulations have been tested...

... neutral. Under such conditions we demonstrated low retention and high performance in terms of phase behavior and coreflood oil recovery. chemical flooding methods fluid dynamics concentration flow in porous media surfactant formulation upstream oil & gas brine surfactant concertation...

... Abstract With a resurgence of chemical EOR opportunities throughout the world, high concentration surfactant design has re-emerged its uneconomic face. High concentration surfactant formulation is the micellar polymer design from the past that produced high oil recoveries in the lab but were...

... temperature surfactant society of petroleum engineers formulation concentration field trial Schrader Bluff Oil Recovery Introduction Successful technology development and deployment relies on clearly articulated goals, a defined and executable strategy, and sufficient resources to assure...

...., 2016 ). However, new data show that due to different characteristics of the oil, water and rock in these shale reservoirs, a new approach and understanding of the systems are required to design the successful surfactant formulations for each case. Our recent laboratory experiments on EF and a Canadian...

...) technologies. In this study, after comprehensive laboratory testing, a series of customized chemical formulations was developed to improve oil recovery under the challenging conditions of the Middle Bakken and Niobrara formations (temperature >110 °C, salinity>220,000 ppm, and hardness>15,000 ppm...

... of surfactant formulations relying either on wettability alteration or on ultra-low interfacial tension to desaturate tight rocks from crude oil. We finally show how these quantitative measurements allow getting a better understanding of the mechanisms at play during imbibiton in very low permeability porous...

... model ( Eqs. 5 through 10 ) is a significant advance in terms of practical engineering applications. It is very useful in terms of correlating experimental data. However, there is no advantage to equation 10 in terms of formulation development since the same phase behavior experiments needed...