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Keywords: viscosity reduction
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Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Technical Conference, March 13–14, 2018
Paper Number: SPE-189765-MS
... . Moreover, C 3 has more potential for asphaltene precipitation than C 4 . Viscosity measurements showed that dissolution of C 3 and C 4 in bitumen resulted in greater viscosity reduction than CO 2 dissolution. This difference was more pronounced at lower temperatures. The highest C 4 solubility...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Technical Conference, February 15–16, 2017
Paper Number: SPE-184981-MS
... technology with relevant laboratory test and field results supporting the description. thermal method bitumen Upstream Oil & Gas oil sand complex reservoir viscosity reduction Reservoir Characterization SAGD viscosity producer mud shale stringer catalyst concentration thermal...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Technical Conference, June 7–9, 2016
Paper Number: SPE-180760-MS
... technique is applied to determine the optimum injection volume of steam, viscosity reducer, and CO2. Furthermore, the performance of application of hybrid methods in Zheng 411 ultra-heavy oil reservoirs of Shengli Oilfield is evaluated. The viscosity reduction caused by adding oil-soluble viscosity reducer...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Technical Conference, June 9–11, 2015
Paper Number: SPE-174489-MS
... incorporates viscosity reduction, mobility control, interfacial tension drop, and emulsification mechanisms to present the effects of chemical additives and foam towards SAGD performance. Our results indicate that using additives with SAGD can maintain a uniform steam chamber growth while reducing the heat...
Proceedings Papers

Paper presented at the SPE Heavy Oil Conference-Canada, June 10–12, 2014
Paper Number: SPE-170091-MS
.... The specification of the synthetic crude oil can be tailored to achieve optimum product value. This is achieved by changing the conversion in the LPH reactor and the degree of further upgrading in the second stage. For viscosity reduction the second stage upgrading section would consist of only a small...
Proceedings Papers

Paper presented at the SPE Heavy Oil Conference-Canada, June 10–12, 2014
Paper Number: SPE-170146-MS
... the voltage is limited to 600 volts. Abstract Electrical downhole heating has been used for many years for flow assurance and now is being adapted for reservoir stimulation, viscosity reduction and "in situ" conversion of heavy oil. This paper starts with a short review of flow assurance applications...
Proceedings Papers

Paper presented at the SPE Heavy Oil Conference-Canada, June 10–12, 2014
Paper Number: SPE-170057-MS
... is density of the heavy oil in kg/m 3 , P is pressure in kPa. Abstract Techniques have been developed to experimentally and theoretically determine phase behaviour and viscosity reduction of CO 2 -heavy oil systems at high pressures and elevated temperatures. Experimentally, vapour-liquid phase...
Proceedings Papers

Paper presented at the SPE Heavy Oil Conference-Canada, June 10–12, 2014
Paper Number: SPE-170178-MS
... of these projects only consider viscosity reduction and mobility control mechanisms and not the oil solubilization in water and emulsification. This is the main reason that numerical modeling of the surfactant flooding in the presence of steam for heavy oil recovery is far from satisfactory in the current reservoir...
Proceedings Papers

Paper presented at the SPE Heavy Oil Conference-Canada, June 11–13, 2013
Paper Number: SPE-165410-MS
... horizontal well offshore heavy oil recovery carbon dioxide steam-assisted gravity drainage generator thermal production injection viscosity reduction oilfield nitrogen Offshore Oilfield bohai offshore heavy oil recovery Upstream Oil & Gas oil production oil production rate Oil Recovery...
Proceedings Papers

Paper presented at the SPE Heavy Oil Conference-Canada, June 11–13, 2013
Paper Number: SPE-165451-MS
..., since the cost of steam generation remains high, solvent injection has been considered to decrease steam-oil ratio (SOR). In many cases, solvent means relatively heavy hydrocarbon gas components ranging from C 3 to C 6 . In this paper, we discuss the effect of heavy gas solvents on viscosity reduction...
Proceedings Papers

Paper presented at the SPE Heavy Oil Conference-Canada, June 11–13, 2013
Paper Number: SPE-165467-MS
... & Simulation propane gas production physical model oil production bitumen Upstream Oil & Gas Gravity Drainage viscosity experiment production well bitumen vapex performance solvent dissolution cumulative oil production dissolution university viscosity reduction VAPEX experiment drainage...
Proceedings Papers

Paper presented at the SPE Heavy Oil Conference Canada, June 12–14, 2012
Paper Number: SPE-144797-MS
... reservoir. For this purpose, steam flooding was implemented in these two models separately. Then according to software options, all possible recovery mechanisms (viscosity reduction, steam distillation, thermal oil expansion and others) were simulated individually to measure the effectiveness of each...
Proceedings Papers

Paper presented at the SPE Heavy Oil Conference Canada, June 12–14, 2012
Paper Number: SPE-157799-MS
... process, oil is mobilized through viscosity reduction of oil by solvent dissolution. A light hydrocarbon solvent in vapor form is injected into the reservoir under the same well configuration as SAGD. After development of a full s-shaped chamber and during its lateral growth, oil drains at an almost...
Proceedings Papers

Paper presented at the SPE Heavy Oil Conference Canada, June 12–14, 2012
Paper Number: SPE-157882-MS
... Fig. 2 provides the viscosity of the DAO fluid, treated in different ways. The temperature of the fluid was kept constant at 385°C for both RTC and TC experiments. As it is apparent from the graph, irradiation has decreased the viscosity of the fluids substantially. A viscosity reduction...
Proceedings Papers

Paper presented at the SPE Heavy Oil Conference Canada, June 12–14, 2012
Paper Number: SPE-158341-MS
... between 60°Cand 90°C one with boiling point between 90°Cand 120°Cand another with boiling point above 120°C Not only is pure solvent used in the experiments, but the mixture of toluene and ligarine by different ratios is also mixed with oil samples to investigate viscosity reduction and precipitation...
Proceedings Papers

Paper presented at the SPE Heavy Oil Conference Canada, June 12–14, 2012
Paper Number: SPE-157981-MS
... had strong synergetic effects on heavy oil upgrading. We also found that 300 °C was an effective temperature for heavy oil upgrading with obvious viscosity reduction in the presence of steam, hydrogen donors and catalyst. Reaction can be considered to have reached almost equilibrium condition after 48...

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