Download or read book Combustion Assisted Gravity Drainage CAGD written by Hamid Rahnema and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Combustion assisted gravity drainage (CAGD) is an integrated horizontal well air injection process for recovery and upgrading of heavy oil and bitumen from tar sands. Short-distance air injection and direct mobilized oil production are the main features of this process that lead to stable sweep and high oil recovery. These characteristics identify the CAGD process as a high-potential oil recovery method either in primary production or as a follow-up process in reservoirs that have been partially depleted. The CAGD process combines the advantages of both gravity drainage and conventional in-situ combustion (ISC). A combustion chamber develops in a wide area in the reservoir around the horizontal injector and consists of flue gases, injected air, and mobilized oil. Gravity drainage is the main mechanism for mobilized oil production and extraction of flue gases from the reservoir. A 3D laboratory cell with dimensions of 0.62 m, 0.41 m, and 0.15 m was designed and constructed to study the CAGD process. The combustion cell was fitted with 48 thermocouples. A horizontal producer was placed near the base of the model and a parallel horizontal injector in the upper part at a distance of 0.13 m. Peace River heavy oil and Athabasca bitumen were used in these experiments. Experimental results showed that oil displacement occurs mainly by gravity drainage. Vigorous oxidation reactions were observed at the early stages near the heel of the injection well, where peak temperatures of about 550°C to 690°C were recorded. Produced oil from CAGD was upgraded by 6 and 2°API for Peace River heavy oil and Athabasca bitumen respectively. Steady O2 consumption for both oil samples confirmed the stability of the process. Experimental data showed that the distance between horizontal injection and production wells is very critical. Close vertical spacing has negative effect on the process as coke deposits plug the production well and stop the process prematurely. CAGD was also laboratory tested as a follow-up process. For this reason, air was injected through dual parallel wells in a mature steam chamber. Laboratory results showed that the process can effectively create self-sustained combustion front in the previously steam-operated porous media. A maximum temperature of 617°C was recorded, with cumulative oil recovery of 12% of original oil in place (OOIP). Post-experiment sand pack analysis indicated that in addition to sweeping the residual oil in the steam chamber, the combustion process created a hard coke shell around the boundaries. This hard shell isolated the steam chamber from the surrounding porous media and reduced the steam leakage. A thermal simulator was used for history matching the laboratory data while capturing the main production mechanisms. Numerical analysis showed very good agreement between predicted and experimental results in terms of fluid production rate, combustion temperature and produced gas composition. The validated simulation model was used to compare the performance of the CAGD process to other practiced thermal recovery methods like steam assistance gravity drainage (SAGD) and toe to heel air injection (THAI). Laboratory results showed that CAGD has the lowest cumulative energy-to-oil ratio while its oil production rate is comparable to SAGD. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/148220

Download or read book Thermal Methods written by Abdolhossein Hemmati-Sarapardeh and published by Gulf Professional Publishing. This book was released on 2023-04-18 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermal Methods, Volume Two, the latest release in the Enhanced Oil Recovery series, helps engineers focus on the latest developments in this fast-growing area. In the book, different techniques are described in addition to the latest technologies in data mining and hybrid processes. Supported field case studies are included to illustrate a bridge between research and practical applications, making it useful for both academics and practicing engineers. Structured to start with thermal concepts and steam flooding, the book's editors then advance to more complex content, guiding engineers into areas such as hybrid thermal methods and edgier technologies that bridge solar and nuclear energy. Supported by a full spectrum of contributors, this book gives petroleum engineers and researchers the latest research developments and field applications to drive innovation for the future of energy. - Presents the latest understanding surrounding the updated research and practical applications specific to thermal enhanced oil recovery methods - Provides an analysis of editors' research on available technology, including hybrid thermal-solvent processes and dual pipe configurations - Teaches about additional methods, such as data mining applications, and economic and environmental considerations

Download or read book Subsurface Upgrading of Heavy Crude Oils and Bitumen written by Cesar Ovalles and published by CRC Press. This book was released on 2019-07-24 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heavy crude oils and bitumen represent more than 50% of all hydrocarbons available on the planet. These feedstocks have a low amount of distillable material and high level of contaminants that make their production, transportation, and refining difficult and costly by conventional technologies. Subsurface Upgrading of Heavy Crude Oils and Bitumen is of interest to the petroleum industry mainly because of the advantages compared to aboveground counterparts. The author presents an in-depth account and a critical review of the progress of industry and academia in underground or In-Situ upgrading of heavy, extra-heavy oils and bitumen, as reported in the patent and open literature. This work is aimed to be a standalone monograph, so three chapters are dedicated to the composition of petroleum and fundamentals of crude oil production and refining. Key Features: Offers a multidisciplinary scope that will appeal to chemists, geologists, biologists, chemical engineers, and petroleum engineers Presents the advantages and disadvantages of the technologies considered Discusses economic and environmental considerations for all the routes evaluated and offers perspectives from experts in the field working with highlighted technologies

Download or read book Introduction to Enhanced Recovery Methods for Heavy Oil and Tar Sands written by James G. Speight and published by Gulf Professional Publishing. This book was released on 2016-02-24 with total page 577 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to Enhanced Recovery Methods for Heavy Oil and Tar Sands, Second Edition, explores the importance of enhanced oil recovery (EOR) and how it has grown in recent years thanks to the increased need to locate unconventional resources such as heavy oil and shale. Unfortunately, petroleum engineers and managers aren't always well-versed in the enhancement methods that are available when needed or the most economically viable solution to maximize their reservoir's productivity. This revised new edition presents all the current methods of recovery available, including the pros and cons of each. Expanded and updated as a great preliminary text for the newcomer to the industry or subject matter, this must-have EOR guide teaches all the basics needed, including all thermal and non-thermal methods, along with discussions of viscosity, sampling, and the technologies surrounding offshore applications. - Enables users to quickly learn how to choose the most efficient recovery method for their reservoir while evaluating economic conditions - Presents the differences between each method of recovery with newly added real-world case studies from around the world - Helps readers stay competitive with the growing need of extracting unconventional resources with new content on how these complex reservoirs interact with injected reservoir fluids

Download or read book Oil Sand Production Processes written by James G. Speight and published by Gulf Professional Publishing. This book was released on 2012-10-23 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: The combination of global warming and peak oil has made finding alternative sources of energy more important than ever. Written in an easy-to-read format, Oil Sands Production Processes provide the reader with an understandable overview of the chemistry, engineering, and technology of oil sands. The various chapters have been written to include the latest developments in the oil sands industry, including evolving and new processes as well as the various environmental regulations. - Overview of the chemistry, engineering, and technology of oil sands - Updates on the evolving processes and new processes - Evolving and new environmental regulations regarding oil sands production processes

Download or read book Hybrid Enhanced Oil Recovery Processes for Heavy Oil Reservoirs written by Xiaohu Dong and published by Elsevier. This book was released on 2021-10-27 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hybrid Enhanced Oil Recovery Processes for Heavy Oil Reservoirs, Volume 73 systematically introduces these technologies. As the development of heavy oil reservoirs is emphasized, the petroleum industry is faced with the challenges of selecting cost-effective and environmentally friendly recovery processes. This book tackles these challenges with the introduction and investigation of a variety of hybrid EOR processes. In addition, it addresses the application of these hybrid EOR processes in onshore and offshore heavy oil reservoirs, including theoretical, experimental and simulation approaches. This book will be very useful for petroleum engineers, technicians, academics and students who need to study the hybrid EOR processes, In addition, it will provide an excellent reference for field operations by the petroleum industry. Introduces emerging hybrid EOR processes and their technical details Includes case studies to help readers understand the application potential of hybrid EOR processes from different points-of-view Features theoretical, experimental and simulation studies to help readers understand the advantages and challenges of each process

Download or read book Steam Assisted Gravity Drainage written by Lance A. Hobbs and published by . This book was released on 1997 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sustainable In Situ Heavy Oil and Bitumen Recovery written by Mohammadali Ahmadi and published by Elsevier. This book was released on 2023-03-24 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sustainable In-Situ Heavy Oil and Bitumen Recovery: Techniques, Case Studies, and Environmental Considerations delivers a critical reference for today's energy engineers who want to gain an accurate understanding of anticipated GHG emissions in heavy oil recovery. Structured to break down every method with introductions, case studies, technical limitations and summaries, this reference gives engineers a look at the latest hybrid approaches needed to tackle heavy oil recoveries while calculating carbon footprints. Starting from basic definitions and rounding out with future challenges, this book will help energy engineers collectively evolve heavy oil recovery with sustainability applications in mind. - Explains environmental footprint considerations within each recovery method - Includes the latest hybrid methods such as Hybrid of Air-CO2N2 and Cyclic Steam Stimulation (CSS) - Bridges practical knowledge through case studies, summaries and remaining technical challenges

Download or read book Energy Gain Efficiency in Steam Assisted Gravity Drainage SAGD written by Najeeb Alharthy and published by . This book was released on 2010 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Physical Model Experiments of the Gas assisted Gravity Drainage Process written by Amit P. Sharma and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book In situ Visualization of Steam Assisted Gravity Drainage with Chemical and Solvent Additives written by Mira Kim and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Supply Costs for the Steam Assisted Gravity Drainage Process SAGD written by Brian Bowers and published by . This book was released on 2006 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Computer Simulation of Single well Steam Assisted Gravity Drainage SW SAGD written by Keith T. Elliot and published by . This book was released on 1999 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Steam Assisted Gravity Drainage SAGD Process written by Faisal F. Khan and published by . This book was released on 2013 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report details the theory and the importance of the steam chamber in a Steam Assisted Gravity Drainage (SAGD) process. An accurate understanding of the steam chamber is critical in determining the oil recovery from a heavy oil reservoir.

Download or read book Experimental Studies on the Use of Chemical Additives for Steam assisted Gravity Drainage written by Litan Li and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Steam-assisted gravity drainage (SAGD) is a mature technique for bitumen recovery from oil sand reservoirs; however, it is an energy intensive process that requires large amounts of steam to heat and mobilize the bitumen. The purpose of this work was to find ways to improve SAGD performance using chemical additives. Key mechanisms were identified, a suite of high-temperature additive characterization tests was developed, and promising additives were tested in porous media. Based on the results, experimenters concluded that oil-water interfacial tension reduction held the most potential for improved recovery. A preliminary field-scale study was attempted using numerical simulation, which showed that wettability alteration and oil-water interfacial tension reduction had a positive impact on SAGD performance.

Download or read book Computer Simulation of Single Well Steam Assisted Gravity Drainage SW SAGD SUPRI TR 119 written by and published by . This book was released on 1999 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: Steam assisted gravity drainage (SAGD) is an effective method of producing heavy oil and bitumen. In a typical SAGD approach, steam is injected into a horizontal well located directly above a horizontal producer. A steam chamber grows around the injection well and helps displace heated oil toward the production well. Single-well (SW) SAGD attempts to create a similar process using only one horizontal well. This may include steam injection from the toe of the horizontal well with production at the heel. Obvious advantages of SW-SAGD include cost savings and utility in relatively thin reservoirs. However, the process is technically challenging. To improve early-time response of SW-SAGD, it is necessary to heat the near-wellbore area to reduce oil viscosity and allow gravity drainage to take place. Ideally heating should occur with minimal circulation or bypassing of stream. Since project economics are sensitive to early production response, we are interested in optimizing the start -up procedure.

Download or read book Steam assisted Gravity Drainage Process Enhancement written by Jian Gong and published by . This book was released on 2002 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: