... the steam/oil ratio (SOR). Compared with a steam-alone process or SAGD, fewer well pairs are required to drain a given reservoir pool. September 2015 Journal of Canadian Petroleum Technology 277 The feasibility of using fewer wells in a steam-assisted-gravity-drainage (SAGD) project during solvent coin...

... fractured, resulting in three classes of porosity: matrix, vugs, and fractures. The viscosity of bitumen is lowered by four to six orders of magnitude when heated by steam. Since December 2010, the Saleski pilot project evaluated steam-injection-recovery processes by use of four well pairs, two each...

... injection and production with well pairs as the reservoir depletion matures, intends to maximize recovery in future exploitation projects. Thermal Recovery of Bitumen From the Grosmont Carbonate Formation Part 2: Pilot Interpretation and Development Strategy Daniel Yang, Moslem Hosseininejad Mohebati...

...-assisted-gravity-drainage (SAGD) process, are presented. The work is motivated by the fact that numerous operators use dual-tubing strings for designing and optimizing steam-chamber development. Flow in the region of the SAGD horizontal well pair is often irregular, and dual-tubing strings may help to even...

... drillstem/well testing Thickness das realization enhanced recovery optimization problem Upstream Oil & Gas objective function well pair global rotation conformance Optimization of Drainage-Area Configurations To Maximize Recovery From SAGD Operations John G. Manchuk, SPE, and Clayton V...

... pressure steam-assisted gravity drainage steam rise geomechanics well pair effective stress enhanced recovery Upstream Oil & Gas mudstone SPE Journal operation Tamarack oilsand facies fracture pressure clearwater mudstone Effective Caprock Determination for SAGD Projects P.M. Collins...

... anticipated. The geological review, history of the F Pad East pairs, results of numerical-simulation study, and recommendations are presented in this paper. 2013. Society of Petroleum Engineers thermal method Artificial Intelligence Upstream Oil & Gas well pair producer well SAGD trajectory...

...John Stalder Summary The Surmont Well Pair 102-06 started steam-assisted-gravity drainage (SAGD) operation in April 2009 with flow-distribution control (FDC) built into the horizontal liners for both the injection and the production wells. After preheat steam circulation, this liner system has...

... Incorporated (Husky) thermal field that includes 31 SAGD well pairs. In this heavy-oil pool, one of the SAGD well pairs (I3/I4; Well I3 as producer and Well I4 as the injector) experienced production downtime soon after coming into service. Following numerous unsuccessful service jobs, several re-entry options...

... pressure for extended periods of time and this has been simulated adequately using dead-oil models, which omit solution gas from the simulations. As we move into later stages in the life of the more mature well pairs at these projects, it is important to understand the role of noncondensable gases...

... because of facility or well operational issues. Cooling bitumen and steam condensate, which continue to drain and raise the liquid level over the producer, cause difficulties with the restart. The producer could also cool if the well pair is converted prematurely from circulation to full SAGD mode...

... simulation, and geomechanics in SAGD simulation and to link them with a 4D-seismic survey in history matching is provided. thermal method Modeling & Simulation static moduli enhanced recovery middle well pair Upstream Oil & Gas operation oil sand in-situ stress well pair coupling...

...Jian-Yang Yuan; Richard McFarlane Summary The impact of steam quality, circulation rate and pressure difference between the well pair during SAGD initialization using steam circulation was explored through the use of numerical simulations employing a discretized wellbore model. These operating...

... of SAGD in the Clearwater formation commenced in the late 1990s at Burnt Lake and Hilda Lake. The Burnt Lake pilot has three well pairs and Hilda Lake has two well pairs 3 . These two pilot projects are still producing today. The first commercial SAGD project in the Clearwater formation was operated...

... are characterized by logs and literature at an initial stage before the start of production. Production scenarios are run to obtain pore pressure, temperature, steam and oil saturations on a detailed reservoir grid around a well pair at several stages of production. Direct coupling with a geomechanical model...

... principles have been applied to the simulation work de- scribed in the following sections. Simulation Studies There are a number of complex interactions that take place when operating or simulating a SAGD well pair in a reservoir with a bottomwater leg. Of particular importance to these are several...

... demonstration project with 19 horizontal well pairs. The horizontal wells range in length from 500 m 750 m long. Wells will be added as required to main- tain production at between 8,000 and 10,000 barrels p/D over the May 2010, Volume 49, No. 5 51 next years. Figure 1 shows the horizontal well configuration...

... for the studied well pairs. Geometry Method The geometry method incorporates steam zone thickness data from surrounding temperature observation wells and areal steam extent data from 4D seismic. An estimation of the steam chamber volume has been assumed following the schematic shown in Figure 1(6). The geometry...

... 2009. Society of Petroleum Engineers Modeling & Simulation injector SAGD constraint well pair completion thermal method steam-assisted gravity drainage Pay Thickness kPa Xsagd cross sagd steam oil ratio permeability enhanced recovery Upstream Oil & Gas heterogeneity...

... demonstrated with a real field case example. The field 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 bottomwater zone is also present. Three major steps of the workflow are: history matching primary...