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Keywords: stability
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Proceedings Papers

Paper presented at the SPE Asia Pacific Enhanced Oil Recovery Conference, August 11–13, 2015
Paper Number: SPE-174597-MS
... Abstract Foam has been successfully used for profile control in mature reservoirs for the advantages of easy preparation, selectively plugging capacity, effective profile control and displacement efficiency capacity. However, the stability of foam is a serious problem for scale applications...
Proceedings Papers

Paper presented at the SPE Asia Pacific Enhanced Oil Recovery Conference, August 11–13, 2015
Paper Number: SPE-174589-MS
... and high temperatures due to their limited stability. Our objective is to introduce a novel alkyl ether carboxylate (AEC) based surfactant which exhibits both an outstanding tolerance against high temperatures and high salt concentrations, while delivering high interfacial activity. The solubility...
Proceedings Papers

Paper presented at the SPE Asia Pacific Enhanced Oil Recovery Conference, August 11–13, 2015
Paper Number: SPE-174619-MS
... composition intensification penetration reservoir flow in porous media invert-emulsion solution viscosity stability injection pashninsky oilfield permeability carbonate reservoir society of petroleum engineers Reservoirs which are at the final developing stage characterized...
Proceedings Papers

Paper presented at the SPE Asia Pacific Enhanced Oil Recovery Conference, August 11–13, 2015
Paper Number: SPE-174671-MS
... Abstract The contribution of alkaline/Surfactant/Polymer to the stability of produced crude oil emulsions is neither fully understood nor thoroughly investigated although there have been reports from previous projects that implicate risk produced water treatment. This study focuses on water...
Proceedings Papers

Paper presented at the SPE Asia Pacific Enhanced Oil Recovery Conference, August 11–13, 2015
Paper Number: SPE-174629-MS
... that, in both static and dynamic studies, the PEF had higher stability than that of foams. Nonionic surfactant generated the least stable foam in the presence of crude oil. Surfactant flooding slightly increased the oil recovery from matrix after water injection. This was more evident in the case of CTAB...
Proceedings Papers

Paper presented at the SPE Asia Pacific Enhanced Oil Recovery Conference, August 11–13, 2015
Paper Number: SPE-174591-MS
... was doubled and water content decreased from 81% to 42%. The SP flooding effects lasted for about 2 years and could be extended further. This paper presents the feasibility of SP flooding in offshore environment. waterflooding oil production stability Upstream Oil & Gas water content producer...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 2–4, 2013
Paper Number: SPE-165219-MS
...-C Non-ionic C 12/14 11.3 Abstract Factors confronting the application of surfactant flood in high temperature, high salinity carbonate reservoirs include: high concentration of divalent ions in the formation brine, the stability of the surfactant in high thermal environment, surfactant...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 2–4, 2013
Paper Number: SPE-165211-MS
... the effects of foam flooding. Secondly, the chemical formula of foam solution and the size of slug influence the performance of foam flooding. The stability of foam formula influences the effects of foam flooding greatly. With the same amount of surfactant solution, the effect of high concentration small...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 2–4, 2013
Paper Number: SPE-165280-MS
... and implementation. Accordingly, the study also addresses prospects and suggests necessary guidelines to be considered for the success of CO 2 foam projects. Upstream Oil & Gas co 2 chemical flooding methods Efficiency Schramm application porous media stability saturation mobility control...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 2–4, 2013
Paper Number: SPE-165296-MS
... that CO 2 -foam stability and blocking ability were strongly reduced when mass transfer occured. In this study delay in foam strength build-up was observed with non-equilibrated fluids. In addition, visual observations of the foam texture indicated larger bubbles. Compared to N 2 -foams at similar...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 2–4, 2013
Paper Number: SPE-165310-MS
... from dissolution/viscosity, thermal stability and filtration tests. At lower temperatures (40 °C), polymers were shown to be fit-for-purpose for the conditions evaluated. All polymers showed loss of viscosity with some leading to complete viscosity loss at increased temperatures. This is the result...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 2–4, 2013
Paper Number: SPE-165311-MS
... Chemical Stability viscosity xanthan salinity polymer flood copolymer enhanced oil recovery polymer backbone HEC degradation Upstream Oil & Gas Seright spe 165311 Biopolymer stability hydrolysis society of petroleum engineers Polymer flooding is the dominant chemical enhanced...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 19–20, 2011
Paper Number: SPE-143488-MS
... asphaltene remediation paraffin remediation hydrate remediation hydrate inhibition asphaltene inhibition deposition composition remediation of hydrates particle crude oil stability reduction asphaltene precipitation flocculation symposium scale remediation oilfield chemistry scale inhibition...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 19–20, 2011
Paper Number: SPE-142771-MS
... by 4PV ~ 5PV, also the pressured recorded. For the experiment, the injection speed is 0.3mL/ min, pressure recording interval 20min, the concentration of viscosity stabilizer 120mg/L, and the polymer solution is 5000mg/L mother liquid compounded with fresh water, which is diluted to the level of 1000mg/L...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 19–20, 2011
Paper Number: SPE-143578-MS
... Foam is a meta-stable system that coarsens spontaneously and finally decays completely due to liquid drainage from the lamellae and Plateau borders (lamellae intersections) and capillary suction. The lamellae are stabilized by using surfactants, (e.g. [ 10 ]) or, to a lesser extent, polymers...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 19–20, 2011
Paper Number: SPE-143987-MS
... Abstract In this paper, the stability of oil-in-water emulsions produced from chemical enhanced oil recovery processes was investigated over a wide range of parameters. These parameters are surfactant concentration, polymer concentration, mixing speed, asphaltene concentration, salinity...

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