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Keywords: co 2
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Proceedings Papers

Paper presented at the SPE EOR Conference at Oil and Gas West Asia, March 26–28, 2018
Paper Number: SPE-190337-MS
... Sabriyah Lower Burgan (SALB) using this integrated process found that surfactant-polymer and alkaline-surfactant-polymer flood had different economic potentials due to different oil recoveries, facility costs, and operating costs. Initial reservoir screening of the SLAB indicated that LoSal and CO 2...
Proceedings Papers

Paper presented at the SPE EOR Conference at Oil and Gas West Asia, March 26–28, 2018
Paper Number: SPE-190338-MS
... WAG injection co 2 residual oil saturation gas saturation enhanced recovery injection period relative permeability saturation injection scenario three-phase relative permeability Upstream Oil & Gas Brine sandstone injection Oil Recovery permeability A significant portion of...
Proceedings Papers

Paper presented at the SPE EOR Conference at Oil and Gas West Asia, March 26–28, 2018
Paper Number: SPE-190371-MS
... Abstract Carbon Dioxide (CO 2 ) injection is one of the more effective EOR methods in oil reservoirs. Continuous CO 2 injection is a viable technique that could yield high oil recoveries when employed effectively in naturally fractured reservoirs. Screening, evaluating, and designing optimized...
Proceedings Papers

Paper presented at the SPE EOR Conference at Oil and Gas West Asia, March 26–28, 2018
Paper Number: SPE-190424-MS
... Abstract CO 2 EOR projects have experienced localized success in the United States due to past investments in CO 2 infrastructure made possible by no longer existing government incentives. Many countries mistakenly look at these successful cases, along with the environmental benefit of carbon...
Proceedings Papers

Paper presented at the SPE EOR Conference at Oil and Gas West Asia, March 26–28, 2018
Paper Number: SPE-190463-MS
... designed. 3 groups of 2-D SAGD experiment with different additives (including ammonia, CO 2 , urea) were run to evaluate the influence to SAGD process. The performance of different additives were compared. The effects of different products from urea were analyzed in detail. Study reveals that SAGD process...
Proceedings Papers

Paper presented at the SPE EOR Conference at Oil and Gas West Asia, March 26–28, 2018
Paper Number: SPE-190417-MS
... Abstract A procedure to model the impact of reservoir CO 2 on chemical EOR (polymer/ASP) flood performance has been developed. The work which was initially developed for polymer flood modelling has been further extended and a simple approach has been presented to model the impact of reservoir...
Proceedings Papers

Paper presented at the SPE EOR Conference at Oil and Gas West Asia, March 26–28, 2018
Paper Number: SPE-190480-MS
... of GOR/density variations on acoustic velocity and viscosity response. Dilution with CO 2 is investigated to interpret CO 2 -oil interactions for EOR projects. An electromagnetic viscometer is used to measure viscosity which is correlated with acoustic velocity values over a range of pressure...
Proceedings Papers

Paper presented at the SPE EOR Conference at Oil and Gas West Asia, March 21–23, 2016
Paper Number: SPE-179751-MS
... screening criteria of the various EOR technologies to the target formations of the study. The EOR processes in this parametric screening exercise included miscible gas EOR (such a CO 2 and N 2 as an example), chemical EOR technologies as well as thermal recovery technologies. During this first part of the...
Proceedings Papers

Paper presented at the SPE EOR Conference at Oil and Gas West Asia, March 21–23, 2016
Paper Number: SPE-179778-MS
... Abstract The addition of intermediate hydrocarbon solvents such as liquefied petroleum gas (LPG) to the CO 2 stream leads to miscible conditions in reservoirs at lower pressures by reducing the minimum miscibility pressure (MMP). Under miscible conditions, higher recovery is obtained by...
Proceedings Papers

Paper presented at the SPE EOR Conference at Oil and Gas West Asia, March 21–23, 2016
Paper Number: SPE-179793-MS
..., ultraviolet light, CO 2 , N 2 and heat. All of those have been used to switch the polar head from the non-polar tail. These characteristic properties make switchable surfactants sustainable chemicals and simplify the produced fluid treatment of ASP flooding processes i.e. the emulsions need to be stabilized...
Proceedings Papers

Paper presented at the SPE EOR Conference at Oil and Gas West Asia, March 21–23, 2016
Paper Number: SPE-179781-MS
... Hydrocarbon and aqueous models were constructed using CMG WINPROP. The hydrocarbon components are CO 2 , CH 4 , NC 4 , and NC 10 . These are presented in Table 1 . The selected reaction model is shown in Table 2 . The reservoir condition is set to 725 psia and 160 0 F. The oil phase envelope is...
Proceedings Papers

Paper presented at the SPE EOR Conference at Oil and Gas West Asia, March 21–23, 2016
Paper Number: SPE-179831-MS
... distance to producers. While the final goal of the miscible gas EOR development for the formation is a miscible CO 2 flood, it was decided to use produced hydrocarbon (HC) gas as a pilot injectant. This addresses the key objectives of the pilot with sufficient accuracy, while avoiding costly and timeline...
Proceedings Papers

Paper presented at the SPE EOR Conference at Oil and Gas West Asia, March 31–April 2, 2014
Paper Number: SPE-169657-MS
... processes of asphaltene induced deposition during CO 2 injection on the core samples and their effects on the porosity and absolute permeability alterations. The pressure drop across the core samples were measured by the differential pressure gauges. The permeability of the medium was calculated before and...
Proceedings Papers

Paper presented at the SPE EOR Conference at Oil and Gas West Asia, March 31–April 2, 2014
Paper Number: SPE-169658-MS
... 2 – Brine – CO 2 – Brine. Each injection phase had the same protocol: start injection at 7 cc/h and wait for stabilization in production and pressure drop (i.e. no more saturation changes); Raise rate to 14 cc/h until steady state is reached, then 21 cc/h and 28 cc/h to get rid of capillary end...
Proceedings Papers

Paper presented at the SPE EOR Conference at Oil and Gas West Asia, March 31–April 2, 2014
Paper Number: SPE-169734-MS
... Abstract Carbon dioxide has been used commercially to recover oil from reservoirs for more than 40 years. Currently, CO 2 flooding is the second most applied enhanced oil recovery (EOR) process in the world behind steam flooding. Water alternating gas (WAG) injection has been a popular method...
Proceedings Papers

Paper presented at the SPE EOR Conference at Oil and Gas West Asia, March 31–April 2, 2014
Paper Number: SPE-169707-MS
... measurments, fresh core= 20.73 ˚(left side), aged core=82.29 ˚(right side). During the gas injection step, three different types of gases were used with different CO 2 content under the same experimental conditions to study the effect of gas composition on secondary GOGD from a fractured carbonate...
Proceedings Papers

Paper presented at the SPE EOR Conference at Oil and Gas West Asia, March 31–April 2, 2014
Paper Number: SPE-169690-MS
... Abstract Miscible CO 2 injection is one of the most common enhanced oil recovery processes employed worldwide to recover the residual oil left behind after waterflooding. Although continuous miscible CO 2 injection (CGI) floods have excellent microscopic displacement efficiency, they often...
Proceedings Papers

Paper presented at the SPE EOR Conference at Oil and Gas West Asia, March 31–April 2, 2014
Paper Number: SPE-169725-MS
... the synthetic formation and injection brines. These salts were Sodium Chloride (NaCl), Sodium Hydroxide (NaOH), Sodium carbonate (Na 2 CO 3 ), Calcium Chloride (CaCl 2 ) and Magnesium Chloride (MgCl 2 ). Industrial Grade CO 2 was obtained in sufficient quantity in the form of gas cylinders...
Proceedings Papers

Paper presented at the SPE EOR Conference at Oil and Gas West Asia, April 16–18, 2012
Paper Number: SPE-154152-MS
..., and polymer as a chemical slug which will be injected during WAG process to reduce the interfacial tension (IFT) and improve the mobility ratio. In a CWAG process, a chemical slug is chased by water, preceded by gas slug and followed by alternate CO 2 and water slug or chemical slug injects after one...
Proceedings Papers

Paper presented at the SPE EOR Conference at Oil and Gas West Asia, April 16–18, 2012
Paper Number: SPE-154457-MS
... quantify reactions between rock and fluid, and forecast pH and salinity over time at the producer. This is dependent on data obtained from core flood experiments, and H 2 S and CO 2 solubility data obtained from literature review and thermodynamic modelling. In order to calibrate the models the following...

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