... sweep efficiencies in displacement recovery processes. The extended contact also means that the behavior of horizontal wells _ in terms of the flow into, and inside them _ will have a significant impact on reservoir recovery performance. As such, wellbore hydraulics cannot be ignored in reservoir...

... still have the problem of abrupt changes in mobility and storativity in the intermediate region. This paper presents a new analytical well test model for thermal recovery processes, which accounts for the smooth changes in mobility and storativity ahead of the flood front. In this study, a thermal...

..., accurate and detailed statistical analysis of emulsion becomes achievable. These analysis may lead to a mapping between statistical characters of emulsion and emulsion formation mechanisms. INTRODUCTION In oil sand and heavy oil recovery processes, physical activities such as shear due to flow...

... in the reservoirs. An economic suitable post-primary improved oil recovery process (lOR) would add substantially to heavy oil reserves. The most efficient method of increasing heavy oil mobility has been reservoir heating by thermal recovery methods which mainly based on steam or air injection. However...

... Abstract An analysis of the response of naturally fractured reservoirs to thermal recovery processes is presented, utilizing a suite of dual continuum reservoir simulation models (dual porosity, multiple interacting continua, vertical matrix refinement and dual permeability). The effects...

... Abstract The capability to monitor the enhanced oil recovery processes in heavy oil reservoirs by active or passive seismic methods provides valuable tools for the reservoir engineer to manage the recovery process. The seismic wave velocities (compressional and shear wave) in reservoir...

... and maximum obtainable oil/steam ratios become strong function of pressure drop. A simplified model summarizing numerous laboratory and computer simulated recovery processes is presented. The model can be used to predict the effect of interwell pressure drop on the recovery process for simplified reservoir...

... Abstract The investigation into thermo recovery of heavy and extra-heavy oil through the use of different injection strategies and additives in order to improve the effectiveness of hot water or steam recovery processes has been of ongoing interest. This paper investigates correlations between...

... conditions imposed during the recovery process. It is shown that the sand production is governed by the changes in permeability and soil properties which develop around the wellbore. The scheme employed in forming the wellbore controls the fluid pressure gradient close to the well and hence the reservoir...

... used for the studies. The reservoir considered in this investigation had characteristics similar to the Athabasca McMurray formation. Steamdrive was used as the primary recovery process. Three configurations were studied. The first configuration involved two 150 m long horizontal wells spaced 60 m...

... is of serious concern during waterflooding or enhanced oil recovery operations. Many oil-producing formations contain significant amounts of clays. Because of the large surface area, and high reactivity of such surfaces, the response of the formations to various recovery processes may be dominated...

... Abstract Nitrogen improved oil recovery (N 2 -IOR) processes have teen used inover thirty-three (33) reservoirs in Canada and the United States. Theaggregate volume of gas injected exceeds 600 MMCFD (million cubic feet perday). Nitrogen improved oil recovery processes are being used...

... Abstract A steam injection test, carried out in the 1.5 m physical simulator developed at the Alberta Research Council for the evaluation of in situ recovery processes for oil sands is described. The experimental facilities and procedures, together with the test data obtained are described...