... are run to obtain pore pressure, temperature, steam and oil saturations on a detailed reservoir grid around a well pair at several steps of production. Direct coupling with a geomechanical model leads to volumetric strain and mean effective stress maps as additional properties. These physical parameters...

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... to the reservoir through a long horizontal well, and hot bitumen is brought up through a second horizontal well located approximately 5 meters below the injection well. JACOS currently operates a SAGD demonstration project with 19 horizontal well pairs. The horizontal wells range in length from 500 to 750 meters...

... pressure is 2000 kPa. Initial horizontal permeability, porosity, oil saturation and water saturation for the model are showed in Figures 4-7. Initial vertical permeability is assumed to be 50% of the initial horizontal permeability. In these figures, from right to left, the injector/producer well pairs...

... the ideal location to put a new injection well or which areas can handle larger injection. It can also provide information on potential flood expectations, direction of fluid movement, reservoir storage capability, and time lag between injector/producer well pairs. For injection processes, the technique can...

... 2009. This paper will be considered for publication in Petroleum Society journals. Publication rights are reserved. This is a pre print and subject to correction. Abstract The impact of steam quality, circulation rate and pressure difference between the well pair during SAGD initialization using steam...

... of horizontal well length for CDOR, and 0.5 for RF. economic limit vertical permeability well pair bitumen price bitumen steam-assisted gravity drainage equation operation project valuation step-d value evaluation csor instantaneous sor economic limit enhanced recovery cdor thermal method...

... Abstract A smooth start-up is crucial to the successful operation of the SAGD process. A simulation study was conducted to analyze the start-up or circulation period of SAGD well pairs. A coupled reservoir/wellbore model was developed and used to history match field data obtained from wells...

... case is an infill SAGD project with two planned SAGD well pairs and eight existing primary production wells which have 5-years of primary production. A bottom water zone is also present. Three major steps of the workflow are (1) history matching primary production data, (2) optimizing SAGD performance...

... is that it is not suitable for implementation as a single well pair, but requires multiple injectors crossing multiple producers. This limits XSAGD to more laterally continuous sands whereas SAGD can be applied in relatively localized pay sections. A possible advantage that XSAGD offers is that the injection well spacing...

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... Abstract The Dover Project (formerly the Underground Test Facility) is the world's first field pilot of the Steam- Assisted Gravity Drainage (SAGD) process using dual horizontal well pairs to recover bitumen. There have been four phases of SAGD piloting at the Dover site thus far. The Phase B...

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... in both the upper horizontal injector and lower horizontal producer to preheat the oil before communication of temperature and pressure could be achieved between the well pairs. This is accomplished by using a tubing string inside the casing. To accurately model these startup conditions...