3-d model studies of alkaline flooding using horizontal wells

Bağcı, Ali Suat
In this study, the effect of sodium hydroxide (NaOH) solution for the improved oil recovery of Garzan (26degreesAP1) crude oil was investigated using two different laboratory models. The effect of injection rate on oil recovery was investigated using a one-dimensional unconsolidated limestone reservoir model. The effect of horizontal and vertical well configurations on oil recovery was also studied using a 3-D physical model and various well configurations. As previously studied, the interfacial tension measurement of Garzan crude oil and NaOH solution interface was measured to find the optimum concentration of the alkaline solution that gave the minimum interfacial tension at the crude oil/alkaline solution interface at different salinity of the alkaline solutions. The results of the 1-D model tests showed that the NaOH solutions with increasing salinity has given the most significant incremental oil recovery, about 3 to 9% for Garzan crude oil. The results of the displacement tests showed that the injection flow rate of alkaline solution has an important effect on Garzan crude oil in spite of oil recovery achieved. The optimum injection flow rate for Garzan crude oil has been found as 183 cc/hr A total of 6 runs were conducted to investigate the effect of horizontal-vertical well configuration on oil recovery by alkaline flooding. Alkaline flooding experiments were performed in three different well configurations: (1) a vertical injector and horizontal producer (2) horizontal injector and horizontal producer, and (3) a vertical injector and vertical producer The highest oil recovery was obtained through vertical injector-horizontal producer configuration.


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Hascakir, Bema; Babadagli, Tayfun; Akın, Serhat (American Chemical Society (ACS), 2008-11-01)
The recovery characteristics of four different oil shale samples were tested experimentally using the retort technique. To accomplish efficient temperature distribution, the thermal conductivity of the oil shale samples was increased by the addition of three different iron powders. The doses of iron powders were optimized for each oil shale sample based on the highest oil production value experimentally. The experiments were then modeled using the electrical heating option of a commercial reservoir simulato...
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This study focused on the investigation of non-isothermal thermal behavior and kinetics of Turkish crude oils under combustion and pyrolysis conditions using differential scanning calorimetry (DSC). On DSC combustion curves, two exothermic oxidation regions were detected known as low temperature (LTO) and high temperature oxidation (HTO). Again, two distinct reaction regions were revealed under pyrolysis conditions and DSC curves exhibited endothermic behavior for both the distillation and cracking regions....
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Kök, Mustafa Verşan; Akın, Serhat (Informa UK Limited, 2001-12-01)
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Kök, Mustafa Verşan (Informa UK Limited, 2001-01-01)
In this research, in situ combustion performance calculations were performed using different algorithms, which were based on oil recovery/volume burned correlative methods. The correlations were based on field and laboratory combustion tube results. A computer method was developed and applied to different heavy crude oil fields. The results showed that an in situ combustion process is applicable in these fields if the volume burned is 30% for field 1 and 40% for field 2.
Analytical investigation of wet combustion process for heavy oil recovery
Bağcı, Ali Suat (Informa UK Limited, 2004-12-01)
Analysis of combustion tube data produced from experiments performed under realistic reservoir conditions is currently the most valid method of investigating in-situ combustion process. In this study, the optimization of water-air ratio for B. Kozluca heavy crude oil, and the comparison of the performance of dry and wet forward combustion processes were studied. An analytical model was used to extend the laboratory results so that the oil production and steam zone volume can be estimated under field conditi...
Citation Formats
A. S. Bağcı, “3-d model studies of alkaline flooding using horizontal wells,” ENERGY SOURCES, pp. 783–793, 2004, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/62270.