... dynamics steam-assisted gravity drainage reservoir geomechanics nano micro lotion formation pressure recovery rate surfactant expansion stage application efficiency energy storage displacement geology enhanced recovery low-permeability reservoir waterflood huff-and-puff technology...

... (water-glycerol solution 1:1), an oil phase (pine vegetable oil), and varying nonionic surfactants (Tween 80, nonylphenol ethoxylates 100 and 150). Two types of clays (filtration control) were used in the formulation of fluids, Brasgel PA and Cloisite 20 A, in the presence of a viscosifier (xanthan gum...

... analyzed by a dynamic foam analyzer (DFA-100), respectively. Rheological properties of CO 2 -based foams were measured by circulating flow loop foam rheometer at high temperature (250 °F) and shear rate up to 500 1/s. CO 2 foam stability is enhanced by optimizing the concentrations of CTAB surfactant...

... riser corrosion asia government well intervention upstream oil & gas downhole intervention uae government formulation spra formulation acid flowline corrosion surfactant equation materials and corrosion emulsified acid limestone reservoir wormhole regime geology subsurface corrosion...

... Abstract Chemical Enhanced Oil Recovery (CEOR) has offered many opportunities to recover remaining oil during the gradual depletion of conventional oil reserves. One of the CEOR methods proposed is surfactant injection in huff-and-puff mode to reduce oil-water interfacial tension (IFT...

... chemical EOR candidate. Due to higher reservoir temperature (>100°C) it is always challenging to develop a surfactant-based chemical EOR solution due to pronounced issues in chemical compatibility. For any economical surfactant-based chemical EOR process an optimized surfactant or surfactant-polymer...

... The reservoir is predominantly a sandstone reservoir with very high heterogeneity and significantly low permeability with very high clay content. This is attributed to additional challenges in surfactant based chemical EOR technology. Typical values are as follows: As part of a plan...

...Surfactant Flooding Challenges at Harsh Reservoir Conditions Numerous petroleum reservoirs worldwide have been reported to have high temperature and high salinity (HT/HS) conditions. These high temperatures were ranged between (70 °C - 130 °C) and the high salinity/hardness range can reach up...

... and will cause unfavorable mobility ratio. Enproperties of the selected core samplehancement of WAG (EWAG) using foam and surfactant has been research to solve its issue and has success stories. This paper will describe the work process of EWAG to be Pilot at Malaysian oilfield, focusing on numerical...

... Abstract The surfactant selection for chemical floods usually starts with an extensive lab study identifying the formulation that provides the best recovery performance. However, it is oftentimes overlooked that in a laboratory setting the requirements on product availability and applicability...

... hydraulic fluid system mechanical property KG basin Krishna Godavari Basin exhibition stability surfactant breaker surface tension loading proppant placement crosslinked fluid system Introduction to Field India currently has an import dependency of oil of over 80%. With the recent push...

... Abstract Surfactant screening for enhanced oil recovery involves studies of fluid-fluid and fluid-rock interactions to optimize the surfactant formulation for the reservoir of interest. In this paper, we utilize low field nuclear magnetic resonance (NMR) technology to monitor the phase behavior...

... issue throughout PETRONAS' operation. Upstream Oil & Gas crude surfactant Treatment Schedule remedial treatment high molecular weight organic scale enhanced recovery hmwod pilot treatment nanoemulsion surfactant Completion Installation and Operations stimulation application...

.... We also showed that the reverse wettability can be changed using new generation chemicals including thermally resistant chemicals (special surfactants, alkalis, water soluble solvents, and ionic liquids). Even though they reveal useful information, contact angle measurements are limited in accounting...

... oil saturation chemical flooding methods Upstream Oil & Gas Chemical Injection surfactant Oil Recovery dtrap number salinity level injection permeability chemical concentration saturation society of petroleum engineers enhanced recovery adsorption relative permeability reduction...

..., it is imperative to find new flooding agents that tackle such problems. In this study, a novel ultra-low interfacial tension (IFT) nanofluid was formulated, consisting of surfactants to achieve ultra-low IFT and silica nanoparticles to reduce injection pressure. The compatibility test between the surfactants...

... Upstream Oil & Gas gas Well Deliquification ao surfactant aromatic hydrocarbon composition benzene artificial lift system foam carry-over test carry-over test field condensate foam height blender test gas well deliquification surfactant condensate hydrocarbon AE surfactant...

... (Jabbar, et al. 2017). Surfactant is one of the chemicals that has played an important role in EOR through the reduction of oil/water interfacial tension (IFT), emulsifying crude oil and altering the wettability of oil layer and thus produce residual oil (Sheng 2015). Chemical Enhanced Oil Recovery...

... with traditional polymer fluids(Guar), VES fluids used few additives and were easy to prepare in the well site (Samuel et al. 1999; Yang 2002; Yang et al. 2015). The first generation of VES was based on cationic surfactant (Chase et al. 1997). The second generation VES for higher temperature application was based...

...Surfactants A cationic surfactant (v1) was developed using epoxidized soybean oil intermediates that are generally recognized as safe (GRAS). The molecule contained 9-12 positively charged sites. Initial tests with this molecule suggested steric hindrance induced by the triglyceride backbone...