... Abstract The objective of this study is to develop an analytical model to calculate hydrate recovery and rate of gas generation when a hydrate-capped gas reservoir is produced at a constant bottomhole pressure. A similar model has been developed in the past for constant rate production...

... Abstract Vapor Extraction (VAPEX) a new developed Heavy Oil Recovery (HOR) method, has been extensively studied, both theoretically and experimentally, in conventional sandstone models. However, the applicability of this process on naturally fractured reservoirs has not been addressed yet...

... recovery. A detailed geological understanding of the reservoir along with a reservoir simulation is needed to gain a detailed reservoir description and determine the optimal recovery method for this oil reservoir. These are essential to have successful operations as well as reducing uncertainties...

... Abstract The vapor extraction (VAPEX) process, as a non-thermal process, may be suitable for the recovery of heavy oil and bitumen. In this process, the injected solvent diffuses into the heavy oil/bitumen, reduces its viscosity, and drains it to the producing well. The VAPEX process is more...

... Abstract With about 90% of Saskatchewan's original heavy oil in place remaining in the ground, there is excellent potential for the application of enhanced oil recovery (EOR) methods and new technologies. The goal of the study discussed in this paper was to investigate if a new proposed...

... Abstract Experimental results on the combined effect of reservoir heterogeneity, dispersion and gravity segregation between the injected and produced hydrocarbon gases on gas recovery efficiency are presented in this paper. Laboratory tests were conducted in both one-dimensional and two...

... 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...

..., estimating the variation in cumulative hydrocarbon production per well in a given reservoir, and estimating the number of wells that might be required for a given field hydrocarbon recovery. The method is illustrated using data from various fractured reservoirs, including the Barnett shale and sandstone...

... Abstract Carbon dioxide (CO 2 ) flooding is an efficacious method of enhanced oil recovery (EOR) that has nowadays become one of the most important EOR processes. It is a very complicated process, involving phase behavior that could increase oil recovery by means of swelling, evaporating...

... Abstract This paper is a part of a series of papers on results of Enhanced Gas Recovery (EGR) research conducted at the Alberta Research Council during 2003–2007. In this Joint Industry Project (JIP), the soundness of the concept of gas-gas displacement for enhancing gasrecovery...

... Abstract Bartin-Amasra coal field was found convenient for enhanced coalbed methane (ECBM) recovery among the other fields in Zonguldak Coal Basin, Turkey. The lithologic information were examined and the depths of the coal seams and the locations of the wells were visualized to perform...

... Abstract At the conclusion of primary heavy oil production, significant volumes of oil still remain in the reservoir under depleted reservoir pressure. Waterfloods are often consideredfor additional oil recovery. It is accepted that conventional oil waterflooding theory is not applicable...

... in WL reservoir, the development index is predicted for systematic fracturing when separately considering various conditions such as favorable fracture or unfavorable fracture, water-injection well fracturing or non-fracturing. Choosing the recovery percent in 10 years as the main evaluation index...

... or oxidation and poor recoveries. The reason for the poor recoveries has been shown to be an increase of surfactant concentration in the hydrocarbon phase. With oxidized ores, this hydrocarbon-phase surfactant concentration increases, resulting in a stronger association between the mineral and bitumen...

... Abstract Modeling desorption-controlled reservoirs is a struggling issue owing to the complex nature of hydrocarbon transport processes. Complexity of enhanced coalbed methane (ECBM) recovery is not only caused by desorption-controlled behavior of coalbed reservoirs but also the interaction...

... currently in operation, were gathered and analyzed for this purpose. These HPAI projects are definitely not behaving as simple immiscible gasfloods. This study shows that a HPAI project has the potential to yield higher recoveries than a simple immiscible gasflood. Furthermore, it gives recommendations...

... Abstract In 1987, 8,000 acres of the Buffalo field were divided into two units to initiate improved oil recovery operations with two different methods: high-pressure air injection (HPAI) and waterflooding. After collecting 19 years of production history, a technical and economic comparison has...

... Abstract Alkali-surfactant flooding is an established enhanced oil recovery technique in conventional oil reservoirs, whereby the injected chemical reduces the oil/water interfacial tension, leading to less trapping of oil ganglia. In the past, there have been some studies of alkali and alkali...

... Abstract The paper presents basic data on Enhanced Gas Recovery (EGR) by gas-gas displacement for nearly depleted natural gas reservoirs, by injecting waste gases. The soundness of the concept of gas-gas displacement for enhancing gas recovery was investigated via laboratory investigations...

... Abstract The East Bodo, Lloydminster SS heavy oil pool, has been exploited using primary recovery and waterflood. IOR screening showed that a polymer flood would be a preferred IOR technique. Subsequent coreflood tests indicated that the polymer flood could recover 20% OOIP incremental oil...