... Abstract A clear understanding of mechanisms impacting on performance of water floods in the field is critical to identifying optimal operating strategies. We made some empirical observations from certain ongoing water floods in the field suggesting that varying of injection and production...

... in the Athabasca region (Canada). The approach consists of three steps: 1/ the construction of an initial static model, 2/ the simulation of the thermal production of heavy oil with two coupled fluid-flow and geomechanical models, 3/ the production of synthetic seismic maps at different steps of steam injection...

... Abstract Due to the favorable effects of CO 2 , such as oil viscosity reduction, oil swelling, and surface tension reduction, CO 2 injection has been established as an effective technique in enhanced oil recovery for light to medium oils. However the utilization of CO 2 for improving...

... Abstract Subsurface fluid injections such as waste water disposal, waterflooding, and CO 2 sequestration cause reservoir dilation. The reservoir dilation propagates to the surrounding formations and extends up to the ground surface resulting in surface heave. Previous studies have illustrated...

.... By history-matching the field bottom-hole-pressure versus time curve from hydraulic fracturing tests, a set of field-validated geomechanical models can be obtained, which is an important asset for any further works on utilizing geomechanics to enhance the injection and production performance. This paper...

... a pressure transient analysis, current industry practice is to ignore the CO 2 volume injected. WCSB operators and regulators continue to push for shorter test durations due to economic and environmental concerns. The objective of this paper is to investigate the impact of ignoring CO 2 injection on post...

... Abstract Cyclic Steam Stimulation (CSS) has been a commercial recovery process since the mid 1980's in the Cold Lake area in northeast Alberta. The current bitumen production is over 220,000 bbl/d using CSS from this area. To achieve desired injectivity in the bitumen saturated reservoir...

... pressure, temperature, production rate, and injection timing. Simulation results indicate that CO 2 should flow vertically and the roles of capillary pressure are different in cases of different fluid flow directions. Introduction CO 2 sequestration in depleted oil reservoirs is among the most...

... and steam, well geometry, monitoring techniques, and possible calibration methods for numerical simulation models. Relevant laboratory experiments are discussed. All wells and facilities for steam / water handling at Test Site 1 have been completed and steam injection is expected in July 2009. We describe...

... storage capacity than oil reservoirs or aquifers. Secondly, the condensate that has dropped out from the gas phase during natural depletion will re-vaporize due to re-pressurization of the reservoir and by miscibility with the injected CO 2 . This condensate can be recovered from producing wells...

... forecasts to determine reservoir fluid flows. Generating these mental reservoir models will greatly assist in determining upside potential for oil fields. Analyzing production and injection data to formulate production forecasts and to understand oil field mechanics is a critical skill that petroleum...

... into three categories, including Full SAGD, Semi-SAGD, and Partial SAGD. In Partial SAGD, the injector return is shut-in while steam injection continues in the long tubing or in the short tubing and annulus of the injector. The producer is operated with the appropriate steam injection rate to the long tubing...

.... miocene reservoir injection dome reservoir history reservoir characterization permeability tiger field upstream oil & gas reservoir pressure sequence porosity dome lower miocene reservoir average reservoir pressure northern dome dome structure optimization problem reservoir reservoir...

... Abstract In this work, a series of solvent and water injection schemes were conducted on horizontal five-spot glass micromodels which were initially saturated with the heavy oil. Sandstone and limestone rock-look-alike and network patterns, with different pores structures, were etched on glass...

... has been used, and the asphaltene precipitation amount due to pressure reduction and CO 2 injection processes were measured for one of the Iranian heavy crudes. The molecular weight distributions of asphaltene in liquid phase at different gas compositions as well as total asphaltene content were...

... For heavy oil reservoirs with BW practically no EOR method has been proven feasible. This is due mainly to the loss of the injection agent into the BW zone, making the recovery process excessively costly. Laboratory tests of steamflooding in the presence of BW did not give very encouraging results (Chang...

...) is considered, proposing to inject CO 2 separated on the platform back into the original gas reservoir. The CO 2 storage site considered is a nearly abandoned gas block in the DF1-1 gas field. Membrane separation technique will be installed on the platform for the separation. CO 2 is compressed...

... interfacial tension (below about 0.01 mN/m) by the caustic activation of potentially surface-active organic acids in the crude oil, in-situ production of the O/W emulsions that tends to lower the mobility of the injected water and damp viscous fingering, and the diversion of the flow of injected water to give...

..., however, PCP has never used before in the CSS (Cyclic Steam Stimulation) application. To test the feasibility of the PCP in CSS condition, we have tried the High-Temperature-Elastomer PCP (PCM198 Elastomer PCP), manufactured by PCM, in Well Shu1-39-036 after the steam injection. The result of this trial...

... properties of crude oil. CSS is implemented in production. Casing failure often occurs due to short production time in a cycle, frequent steam injection and sanding-out of formation after several cycles of huff & puff. Mechanism studies in casing failure presented in this paper shows that the frequent...