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Showing 1 to 20 of 35 for “"SAGD"”.
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Screening Geostatistical Realizations for SAGD Reservoir Simulation
… using the steam-assisted gravity drainage (SAGD) process strongly depends on the heterogeneities that exist in the petrophysical properties of the reservoir. Petrophysical properties and geological features are normally estimated based on known well data and modeled using geostatistical …
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Comparison of CSS and SAGD in Cold Lake
… Also, Several Steam-Assisted Gravity Drainage (SAGD) projects are in operation in different types of reservoirs in the Cold Lake area. There is a debate over whether CSS is more efficient in the Cold Lake reservoirs or SAGD. It is very important for producers to know broadly about the …
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Stability of Interfaces in a SAGD Steam Chamber
… reason that we are interested in instability in SAGD is that it potentially plays an important role in the growth of the steam chamber with consequent changes of heat transfer and oil rate. The results show that even in a homogeneous reservoir, instabilities can yield non-ideal steam conformance …
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Insights on the Thermal Efficiency of SAGD from Data Analytics
… aspects of Steam-Assisted Gravity Drainage (SAGD) oil recovery using public information, with the aim of uncovering new insights about field performance that cannot be deduced from reservoir physics alone. Topics are chosen by the amount and type of public data available, and each analysis …
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Physical and Numerical Modeling of SAGD Under New Well Configurations
… the effect of well configuration on SAGD performance and developing a methodology for optimizing the well configurations for different reservoir characteristics. The role of well configuration in determining the performance of SAGD operations was investigated with help of numerical …
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Evaluation of Propane-Butane Mixtures as Solvent in ES-SAGD
SAGD (Steam Assisted Gravity Drainage) is a thermal recovery process for production of nearly immobile bitumen from the deeper oil-sand formation. In this method, two parallel horizontal wells are drilled near the reservoir bottom, one about 5 m higher than the other. Steam injected through the …
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A Calculation Model for Steam Property Variation Along Wellbore Trajectory in SAGD Process
… reservoir and reduce oil viscosity. In a typical SAGD process, two horizontal wells were drilled inside the target formation, one is put on the top as steam injection well and another is usually put on the bottom of target formation as oil production well. During SAGD process, a large amount of …
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Localization with the EnKF for the Automatic History Matching of the SAGD Processes
… assimilation in Steam Assisted Gravity Drainage (SAGD) processes, but applications of localization for the EnKF in SAGD processes have not been studied. Distance-based localization has been reported to be very efficient for assimilation of large amounts of independent data with a small ensemble in …
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Optimal Energy Management of a SAGD Microgrid Participating in a Volatile Electricity Market
… storage. A microgrid located on an Alberta SAGD facility, comprising a waste heat-to-electricity Rankine cycle, gas turbine and energy storage system is considered. An alternate scenario in the Pennsylvania-New Jersey-Maryland market is also considered. The EMS maximizes the net present …
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Investigation of Initial Water Mobility and its Effects on SAGD Performance in Oil Sands
Steam-assisted gravity drainage (SAGD) has become a primary commercial in-situ thermal recovery method for oil sands in Alberta. Evidence of initial water mobility during the SAGD process has been observed by many previous field studies. However, no its effective determination method and little …
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Experimental Studies on Solvent Screening and Performance Analysis for Bitumen Recovery Using ES-SAGD
… notably Steam-Assisted Gravity Drainage (SAGD). While SAGD is commercially proven, it is limited by a high Steam-to-Oil Ratio (SOR) and substantial environmental impact. The Expanding Solvent Steam Assisted Gravity Drainage (ES-SAGD) process is a hybrid approach that enhances bitumen …
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Energy Recovery from Oil Sands Reservoirs
… such process, Steam-Assisted Gravity Drainage (SAGD), has been proven to produce bitumen, but due to steam generation has high emissions intensity with large energy requirements. The research presented here studied the SAGD process from multiple angles. The first study is focused on the edge of …
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Simulation Study of Warm VAPEX Process Using Water-soluble Solvent
… is considered a promising alternative to the SAGD process to recover Alberta's heavy oil and bitumen resources. In the past, researchers have found that the main drawback of the VAPEX process is its slow oil production rate due to the inherent mechanism of relatively slower mass transfer …
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Design and real-time process optimisation of steam assisted gravity drainage for improved heavy oil recovery.
… Assisted Gravity Drainage. An user friendly SAGD simulator is a big output of this research which allows the user to optimise the heavy oil recovery and enables to do risk assessments quickly during design phase of SAGD. A SAGD simulator is developed.
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Recovery Strategies and Flow Modeling in Fractured Grosmont Carbonates with High Permeability Conduits
… CSS has severe steam override phenomenon and a SAGD process is extremely sensitive to its steam chamber which is hardly formed evenly in Grosmont. An improved hybrid SAGD in a staggered pattern that promotes lateral and downward sweep and retains more heat regardless of its steam chamber shape …
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Quantification of Phase Behaviour and Physical Properties of Solvents-Heavy Oil/Bitumen-Water Systems at High Pressures and Elevated Temperatures
… heat loss of steam assisted gravity drainage (SAGD) processes and low oil production rate of solvent-based processes, the expanding solvent SAGD (ES-SAGD) process has been considered as a promising technique for enhancing heavy oil/bitumen recovery. The main ES-SAGD mechanisms include the heat …
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Improving Indigenous Engagement and Consultation for Oil Sands Development in the Regional Municipality of Wood Buffalo, Alberta, Canada
… for nine Steam Assisted Gravity Drainage (SAGD) oil sands developments in the Regional Municipality of Wood Buffalo, Alberta, Canada. It presents and applies a new framework designed to help identify opportunities to improve Indigenous participation in environmental assessment. This study …
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On Stability in Gravity Drainage Oil Sand Recovery Process
… the oil drainage rate. Stability phenomena in SAGD occur both at the edge of the chamber and at the liquid pool that exists above the production well. Previous studies have demonstrated that instability at the steam chamber edge can enhance heat transfer there by creating limited-amplitude …
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Removal of acid-extractable organics from oil sands process-affected water using carbon-based adsorbents
… of AEO from steam-assisted gravity drainage (SAGD) water and OSPW. The role of physical properties of AC for AEO removal was investigated. The surface area and total pore volume of AC were positively correlated with AEO removal of SAGD water and OSPW.The impact of biochar properties on AEO …
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