.... Based on these results, a new technical approach to enhancing fluid flow in reservoirs was formulated, and a full-scale field experiment in Alberta was initiated in December 1998. The field trial successfully showed that periodic application of large amplitude excitation to a porous medium experiencing...

... Abstract Simulation of gas condensate reservoir is described for water injection and gas injection, with the objective of improving hydrocarbon recovery. A compositional simulator was used for the studies conducted. The methods investigated were Continuos and Simultaneous Gas Cycling...

... Abstract Conventional wisdom developed throughout many years in the oil industry indicates that a single, closed reservoir can have only one single well-defined water oil contact. Although the contact could appear in some instances to be tilted because of capillary effects, it is still...

... of the oil displacement is caused by the flow of fingers of gas/steam rising counter-currently to the draining oil, rather than by the simple advance of a continuous steam chamber. The rising gas fingers raise the pressure in the reservoir above and this increase in pressure towards the top of the reservoir...

... Abstract Tertiary hydrocarbon miscible flooding is an important enhanced oil recovery process for re-vitalizing mature water-flooded carbonate reservoirs. Husky Oil over the last 16 years has developed extensive expertise in successfully applying tertiary vertical gravity-stabilized...

... and will operate at great depth. Together with other Hydratherm technologies, it can be employed in heavy oil recovery. These include faster and cheaper well drilling and the economical thermal treatment of heavy oil reservoirs, especially those at great depths. The latter is achieved by the creation of deep...

..., as a followup to existing technologies, or as a co-process where the advantages of high thermal efficiency are required. This is achieved by concentrating the energy required for oil mobilisation, recovery and thermal upgrading in the reservoir. Combined with clean technology design, THAI offers a pathway...

... Abstract Many heavy oil and oil sand reservoirs are in communication with a gas cap and - in some cases - with a water sand. Depending on the density (° API gravity) of oil, the water sand could lie above or below the oil zone. Conventional thermal recovery methods - using vertical wells...

... part of the reservoir. In situ combustion, originally designed as flood patterns, has been practiced in the south of the field for about 20 years starting in 1973. Here the Driza formation is 450 m deep, oil gravity is 11 °API, and viscosity is approximately 9000 cp. Difficulties in production wells...

... operating trouble free for over a year. A plateau oil rate of about 100 m3/d has been sustained during this period, at an extremely efficient, Steam/Oil Ratio, (SOR), of just under 2.0. This paper briefly reviews the geology and the reservoir in which the wells are located, specifics of well design...

... Abstract Initial saturations of hydrocarbons and water, that exist in porous media, control reserves in place and, in many cases, the deliverability/recovery of these reserves. Hence, their accurate determination is essential for proper economic and reservoir engineering evaluation...

... at Crestar are normally conducted as the first phase of well stimulation. In undersaturated reservoirs, though, post fracture load fluids can be lost due to reservoir plugging, making the well uneconomic. Fortunately, the well is not permanently damaged and can be re-fractured with an oilbased fluid. Two...

... Abstract This paper presents the case studies of the reservoir performance while under-balanced drilling. The increase of the length of the well bore provides a unique transient effect that, with an appropriate mathematical model, some reservoir parameters can be obtained. The mathematical...

... during later periods of the process, an improved steam oil ratio is obtained without significant reduction in oil production rates and the total oil production. In this case, the injected noncondensable gas migrates to the upper part of the reservoir and does not prevents the growth of steam chamber...

... Abstract It is well known that microbubbles play an important role in heavy oil reservoirs, where the presence of asphaltenes and other charged particles makes it easier to generate microbubbles. Only recently, however, microbubbles are being considered for rigorous analysis of primary...

... Abstract Dom Joao Field located at Reconcavo Basin in northeastern Brazil has been under production for more than fifty years. From the very beginning in 1947, exploitation has been plagued with problems that standard geology and reservoir engineering practices were not able to cope...

... and production in tighter, less permeable zones, the damage-while-drilling issue becomes extremely important. The objective of this paper is to present and discuss the methodology and testing results used in selecting a drilling fluid to be employed in drilling a horizontal well in the Cardium gas reservoir...

... and locations, reservoir locations, potential oil recovery, and capital costs to develop the infrastructure is carried out. The factors leading to a large-scale carbon dioxide industry are compared to the factors in place during the 1970s and 1980s, when most of the hydrocarbon miscible floods were initiated...

... Abstract A new air injection technique, low temperature oxidation (LTO process), is described. Improved oil recovery from deep, light oil reservoirs is achieved by removing the oxygen in the injected air by spontaneous LTO reactions with the residual oil in the reservoir. The product...

... movements was achieved. The model predicts that early blowdown and delayed blowdown cases achieve comparable ultimate oil and gas recoveries. The role of the weil established water fence between the gas cap and oil leg, unique reservoir characteristics and reservoir management strategy, which contribute...