000 02227nab a2200205 4500
005 20260520002021.0
008 260224s2011 xxu
245 0 0 _aGeomechanical-data acquisition, monitoring, and applications in SAGD
260 _a
_b
_cjun. 2011
270 _a07/09/2011 ; 07/09/2011
300 _a13 p. ; 9-21
520 _aTranscripción del resumen del autor. Steam-assisted gravity drainage (SAGD) has proved to be a commercially viable method to extract bitumen from oil-sands reservoirs in western Canada. To understand the influence of steam injection on reservoir and surrounding rocks and potential impacts of surface deformation on the environment, various types of instrumentation and 4D-seismic surveys have been applied in SAGD projects. The effect of geomechanics on SAGD has been well documented. Collecting essential geomechanical data, properly interpreting them, and incorporating them into numerical models are necessary to ensure meaningful history matching and understanding of reservoir performances. This paper outlines geomechanical-data acquisition and field-monitoring methods from a reservoir-engineering perspective, and the applications of geomechanics in SAGD analyses. Minimal-data-acquisition programs are suggested to collect the necessary geomechanical data for different analysis purposes in SAGD projects. Primary instrumentation is briefly overviewed, and recommendations for instrumentation selection are provided. Using generic Canadian-oil-sands reservoir and rock properties, the subsurface and surface changes and deformations are simulated, including permeability changes, reservoir movements, and strains and surface uplifts. Simulations are completed with a widely applied thermal simulator, and its limitations are also discussed. The method to couple the results of geostatistics modelling, reservoir simulation, and geomechanics in SAGD simulation and to link them with a 4D-seismic survey in history matching is provided.
581 _a6
773 0 _tJournal of Canadian Petroleum Technology
_g50
942 _cARTICULO
100 1 _aGu, Fagang
_951493
100 1 _aChan, Mark Y.S.
_951494
100 1 _aFryk, Robert
_951495
999 _c185452
_d185452