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Showing 1 to 20 of 21 for “"steam-assisted gravity drainage (SAGD)"”.
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On Steam Based Recovery Process Design
Steam-based thermal recovery process is the most commonly used recovery process for bitumen production from oil sands reservoirs. The most used thermal methods are Steam Flooding (SF), Cyclic Steam Stimulation (CSS), and Steam Assisted Gravity Drainage (SAGD). The choice of method depends on the …
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Experimental Studies on Solvent Screening and Performance Analysis for Bitumen Recovery Using ES-SAGD
… in-situ thermal methods, 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 …
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Improving Indigenous Engagement and Consultation for Oil Sands Development in the Regional Municipality of Wood Buffalo, Alberta, Canada
… with environmental assessment 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 …
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Comparison of CSS and SAGD in Cold Lake
… deposits within oil-sands reservoirs. Cyclic Steam Stimulation (CSS) has been a commercial recovery process since the mid 1980’s in the Cold Lake area in northeast Alberta. Also, Several Steam-Assisted Gravity Drainage (SAGD) projects are in operation in different types of reservoirs in the …
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Stability of Depletion Chamber Edges in Oil Sands Recovery Processes
Many modifications to Steam-Assisted Gravity Drainage (SAGD) have been proposed to make the steam-based recovery process more efficient and profitable. A common approach is coinjection of additives with steam. There are two general classes of additives: first, solvents that dilute the bitumen …
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Removal of acid-extractable organics from oil sands process-affected water using carbon-based adsorbents
… and tested for the removal 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 …
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Study on the Feasibility of Nitrogen Huff-N-Puff in Heavy Oil Reservoirs
… oil recovery methods are polymer flooding and Steam-assisted Gravity Drainage (SAGD). Such methods are affected by various factors including reservoir thickness, formation heterogeneity, heat loss, and cost, especially in heavy oil reservoirs with depths ranging from 1000 to 2000 m. In these …
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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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Screening Geostatistical Realizations for SAGD Reservoir Simulation
… feasibility of bitumen recovery 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 …
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Insights on the Thermal Efficiency of SAGD from Data Analytics
… in this thesis explores three 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 …
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A Numerical Simulation Study of the N-SolvTM Process
… consumption and greenhouse gas emissions than Steam-Assisted Gravity Drainage (SAGD), solvent based recovery processes are a potential alternative. Vapor Extraction (VAPEX) and N-SolvTM are two potentially competing solvent recovery processes that offer water-free operation. Although VAPEX has …
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Energy Recovery from Oil Sands Reservoirs
… injected high pressure and temperature saturated steam into the reservoir. One 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 …
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Localization with the EnKF for the Automatic History Matching of the SAGD Processes
… successfully applied to data 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 …
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Application of Polymer and Nanomaterials for Improving Heavy Oil Recovery
… portion of oil can be produced and recovered. Steam-assisted gravity drainage (SAGD), used as a common technique to produce heavy oil in Canada (specifically in oil sands reservoirs), requires a lot of energy and negatively impacts the environment. Using environmentally friendly and …
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Analysis of the optical coupling of wavelength-shifting fibers to organic liquid scintillator filled fluoropolymer tubes for industrial and nuclear security applications
… system will provide real-time information about steam chamber development during the enhanced oil field recovery process known as steam assisted gravity drainage (SAGD). The ability to monitor the development of the steam chamber region has the potential to provide important information, which …
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An Improved Vapour Solvent Injection Technique for Enhanced Heavy Oil Recovery
… Thermal-based recovery techniques, such as steam flooding, cyclic steam stimulation (CSS), and steam-assisted gravity drainage (SAGD), are effective and have been widely applied in the field to reduce heavy oil viscosity. However, thermal-based methods are costly and uneconomic, particularly …
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Geochemical Reaction Proxies (Parameters) to Remotely Monitor In Situ Chemical Reactions and Assess the Extent of Bitumen Upgrading during Thermal Recovery Processes
… of simulated thermal recovery experiments, under steam present conditions at temperatures of 300°C and 350°C and for up to 21 days, using oils sands where the residual bitumen (Athabasca and Peace River) was at different levels of biodegradation, were performed in the laboratory. The main goals …
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Performance Evaluation of an Enhanced Cyclic Solvent Process (ECSP) for Thin Heavy Oil Reservoirs
… thin formations. It has been found that cyclic steam stimulation and steam-assisted gravity drainage (SAGD) and vapour extraction (VAPEX) often do not work for recovering heavy oil in such thin reservoirs. The enhanced cyclic solvent process (ECSP) experimentally shows its potential to increase …
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Quantification of Phase Behaviour and Physical Properties of Solvents-Heavy Oil/Bitumen-Water Systems at High Pressures and Elevated Temperatures
Due to the excess 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 …
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Investigating the effect of perforation diameter and carbon dioxide bubble size distribution on heavy oil recovery
… years, thermal-based techniques, such as cyclic steam stimulation (CSS) and steam assisted gravity drainage (SAGD), have traditionally been used to enhance heavy oil recovery. However, due to shallow pay zones in heavy oil reserves, wellbore heat losses can become excessive, making the process …
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