Download or read book Evaluation of CO2 Sequestration Through Enhanced Oil Recovery in West Sak Reservoir written by Vahid Nourpour Aghbash and published by . This book was released on 2013 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: CO2 enhanced oil recovery (EOR) has been proposed as a method of sequestering CO2. This study evaluates using CO2 as an EOR agent in the West Sak reservoir. The injected CO2 mixes with the oil and reduces the oil viscosity, enhancing its recovery. A considerable amount of CO2 is left in the reservoir and 'sequestered'. Due to low reservoir temperature, this process can lead to formation of three hydrocarbon phases in the reservoir. An equation of state was tuned to simulate the West Sak oil and complex phase behavior of the CO2-oil mixtures. A compositional simulator capable of handling three-phase flash calculation and four-phase flow was used to simulate CO2 injection into a three-dimensional heterogeneous pattern model. The results showed that CO2 EOR in the West Sak reservoir increases oil recovery by 4.5% of original oil in place and 48 million metric tons of CO2 could be sequestered. Ignoring four-phase flow underestimated oil recovery and sequestered CO2 volume. Enriching the CO2 with natural gas liquid decreased sequestered CO2 volume without a significant increase in oil recovery. Dissolution of CO2 in the water phase and different water/CO2 slug sizes and ratios did not change the sequestered CO2 volume and oil recovery.

Download or read book Investigation of CO2 Sequestration Options for Alaskan North Slope with Emphasis on Enhanced Oil Recovery written by Santosh Bramhadev Patil and published by . This book was released on 2006 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Carbon dioxide (CO2), the main component of greenhouse gases, is released into the atmosphere primarily by combustion of fossil fuels like coal and oil. Due to a conspicuous lack of any CO2 sequestration studies for Alaskan North Slope (ANS), the study of CO2 sequestration options will open new avenues for CO2 disposal options, such as viscous oil reservoirs and coal seams, on the ANS. This study focuses on the investigation of CO2 storage options by screening ANS oil pools amenable to enhanced oil recovery, evaluating phase behavior of viscous oil and CO2 mixture, and simulating enhanced oil recovery by CO2 flooding, and migration of CO2 in saline aquifer. Phase behavior studies revealed that CO2 gas was partially miscible with West Sak, at the pressure closer to the reservoir pressure. Compositional simulation of CO2 flooding for a five-spot West Sak reservoir pattern showed an increase in percent recovery with an increase in pore volume injected, but at the expense of an early breakthrough. Sensitivity analysis of CO2 flooding project was found to be strongly dependent on the variables such as oil price and discount rate. Investigation of supercritical CO2 injection in saline formation didn't increase temperature in the permafrost region"--Leaf iii.

Download or read book Assessment of CO2 Sequestration Potential Through Enhanced Oil Recovery in Oil Fields on the North Slope of Alaska written by Maduabuchi Pascal Umekwe and published by . This book was released on 2011 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study by the U.S. Department of Energy identified 21 major oil fields containing more than 95% of the North Slope of Alaska's oil. This study investigates the storage of CO2 in these fields while improving oil recovery. These fields meet the criteria for application of miscible and immiscible CO2-enhanced oil recovery methods and contain about 40 billion barrels of oil after primary and secondary recovery. Volumetric calculations from this study illustrate that these fields have a static storage estimate of 3 billion metric tons of CO2. A ranking produced from this study, mainly controlled by field size and fracture gradient, identifies Prudhoe, Kuparuk and West Sak as possessing the largest storage capacities. This storage capacity includes a 20% safety factor on pressures applied during storage to ensure that the formations are not over pressurized to create or extend fractures and result in gas leakage during the storage process. Simulation studies were carried out using CO2 Prophet to determine the amount of oil technically recoverable and CO2 gas storage possible during this process. Fields were categorized as miscible, partially miscible and immiscible based on the miscibility of CO2 with their oil compositions. Seven sample pools were selected across these categories for simulation study. Comparative studies on pure CO2 and water-alternating-gas (WAG) injection were conducted. WAG ratio and minimum miscibility pressure (MMP) were among the main inputs in these simulations. Ranking these fields showed most recovery and storage potential in miscible pools like Alpine and Tarn, partially miscible pools like Prudhoe and Aurora and immiscible pools like West Sak and Orion. The study concludes that 5 billion metric tons of CO2 can be stored while recovering 14.2 billion barrels of the remaining oil in the fields.

Download or read book Integrated Reservoir Studies for CO2 Enhanced Oil Recovery and Sequestration written by Shib Sankar Ganguli and published by Springer. This book was released on 2017-03-30 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses the feasibility of CO2-EOR and sequestration in a mature Indian oil field, pursuing for the first time a cross-disciplinary approach that combines the results from reservoir modeling and flow simulation, rock physics modeling, geomechanics, and time-lapse (4D) seismic monitoring study. The key findings presented indicate that the field under study holds great potential for enhanced oil recovery (EOR) and subsequent CO2 storage. Experts around the globe argue that storing CO2 by means of enhanced oil recovery (EOR) could support climate change mitigation by reducing the amount of CO2 emissions in the atmosphere by ca. 20%. CO2-EOR and sequestration is a cutting-edge and emerging field of research in India, and there is an urgent need to assess Indian hydrocarbon reservoirs for the feasibility of CO2-EOR and storage. Combining the fundamentals of the technique with concrete examples, the book is essential reading for all researchers, students and oil & gas professionals who want to fully understand CO2-EOR and its geologic sequestration process in mature oil fields.

Download or read book Engineering Aspects of Geologic CO2 Storage written by Dayanand Saini and published by Springer. This book was released on 2017-03-22 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt: This timely book explores the lessons learned in and potentials of injecting supercritical CO2 into depleted oil and gas reservoirs, in order to maximize both hydrocarbon recovery and the storage capacities of injected CO2. The author provides a detailed discussion of key engineering parameters of simultaneous CO2 enhanced oil recovery and CO2 storage in depleted hydrocarbon reservoirs. These include candidate site selection, CO2 oil miscibility, maximizing CO2-storage capacity in enhanced oil recovery operations, well configurations, and cap and reservoir rock integrity. The book will help practicing professionals devise strategies to curb greenhouse gas emissions from the use of fossil fuels for energy production via geologic CO2 storage, while developing CO2 injection as an economically viable and environmentally sensible business model for hydrocarbon exploration and production in a low carbon economy.

Download or read book Forecasting CO2 Sequestration with Enhanced Oil Recovery written by William Ampomah and published by Mdpi AG. This book was released on 2022-12-14 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of carbon capture, utilization, and storage (CCUS) is to reduce the amount of CO2 released into the atmosphere and to mitigate its effects on climate change. Over the years, naturally occurring CO2 sources have been utilized in enhanced oil recovery (EOR) projects in the United States. This has presented an opportunity to supplement and gradually replace the high demand for natural CO2 sources with anthropogenic sources. There also exist incentives for operators to become involved in the storage of anthropogenic CO2 within partially depleted reservoirs, in addition to the incremental production oil revenues. These incentives include a wider availability of anthropogenic sources, the reduction of emissions to meet regulatory requirements, tax incentives in some jurisdictions, and favorable public relations. The United States Department of Energy has sponsored several Regional Carbon Sequestration Partnerships (RCSPs) through its Carbon Storage program which have conducted field demonstrations for both EOR and saline aquifer storage. Various research efforts have been made in the area of reservoir characterization, monitoring, verification and accounting, simulation, and risk assessment to ascertain long-term storage potential within the subject storage complex. This book is a collection of lessons learned through the RCSP program within the Southwest Region of the United States. The scope of the book includes site characterization, storage modeling, monitoring verification reporting (MRV), risk assessment and international case studies.

Download or read book Geologic Carbon Sequestration written by V. Vishal and published by Springer. This book was released on 2016-05-11 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: This exclusive compilation written by eminent experts from more than ten countries, outlines the processes and methods for geologic sequestration in different sinks. It discusses and highlights the details of individual storage types, including recent advances in the science and technology of carbon storage. The topic is of immense interest to geoscientists, reservoir engineers, environmentalists and researchers from the scientific and industrial communities working on the methodologies for carbon dioxide storage. Increasing concentrations of anthropogenic carbon dioxide in the atmosphere are often held responsible for the rising temperature of the globe. Geologic sequestration prevents atmospheric release of the waste greenhouse gases by storing them underground for geologically significant periods of time. The book addresses the need for an understanding of carbon reservoir characteristics and behavior. Other book volumes on carbon capture, utilization and storage (CCUS) attempt to cover the entire process of CCUS, but the topic of geologic sequestration is not discussed in detail. This book focuses on the recent trends and up-to-date information on different storage rock types, ranging from deep saline aquifers to coal to basaltic formations.

Download or read book CO2 Sequestration and EOR Cooptimization in a Mature Field written by Yang Chang and published by . This book was released on 2014 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: CO2 Enhanced Oil Recovery (CO2 -EOR) has been a mature technology for more than 40 years. This EOR process offers opportunities to mitigate CO2 emissions through co-optimization of CO2 sequestration and EOR. In this thesis, we focus on the Tensleep Sandstone to simulate CO2 -EOR and sequestration, and analyzed the effect of different injection scenarios. Research has been conducted to study mechanisms in CO2 -EOR and CO2 -sequestration, respectively. CO2 -EOR mechanisms in the simulation included CO2 dissolution in crude oil to decrease viscosity and swelling crude oil. For CO2 sequestration, CO2 was allowed to get trapped in the pore space by hysteresis effects and dissolved in formation water through solubility. Based on a geostatistical model with detailed information on the reservoir geology, a dynamic model was built using the compositional simulator CMG-GEM. Simulation results for CO2 -EOR and sequestration in Tensleep B sandstone will serve future economic evaluations and reservoir development design. The sequence of injection influences oil recovery; the best timing for CO2 injection to obtain a maximum oil recovery is the beginning of reservoir exploitation. When it comes to CO2 sequestration, the best timing of CO2 injection leading to the maximum storage volume is after continuous water injection. For water-alternating-gas scenarios, six month cycles are recommend, based on the high oil recovery observed and perceived lower operating cost.

Download or read book Carbon Dioxide Enhanced Oil Recovery from the Citronelle Oil Field and Carbon Sequestration in the Donovan Sand Southwest Alabama written by Konstantinos Theodorou and published by . This book was released on 2013 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: Capturing carbon dioxide (CO2) from stationary sources and injecting it into deep underground geologic formations has been identified as a viable method for reducing carbon emissions to the atmosphere. Sedimentary rocks, such as sandstones overlain by shales or evaporites, are the preferred formations because their morphology and structure provide pore space, and containment for the long term storage of CO2. Sandstone formations have also served as repositories to migrating hydrocarbons, and are the sites of many oil recovery operations. For many depleted oil reservoirs, secondary waterflooding recovery methods are no longer efficient or economically viable, hence the application of tertiary CO2 enhanced oil recovery (CO2-EOR) followed by CO2 storage is an attractive and cost effective business plan. Citronelle Oil Field, located in southwest Alabama, is the largest and longest producing sandstone oil reservoir in the state, having produced more than 170 million barrels of oil from its estimated 500 million barrels of original oil in place, since its discovery in 1955. The field is in the later stages of secondary recovery by waterflooding and daily oil production has declined considerably. The field is comprised of the Upper and Lower Donovan hydrocarbon bearing sandstones, which are separated by the saline-water-bearing sandstones of the Middle Donovan. The Ferry Lake Anhydrite, which overlies the three sections, serves as their caprock. The present work is focused on an investigation of the feasibility of a CO2-EOR project for the Citronelle Oil Field and the use of the Middle Donovan for long term CO2 storage. A set of static calculations, based on estimation methods which were retrieved from publications in the field, was followed by computer simulations using MASTER 3.0, TOUGH2-ECO2N, and TOUGHREACT. Results using MASTER 3.0, for simulation of CO2-EOR, indicated that nearly 50 million barrels of additional oil could be produced by tertiary recovery. Results using TOUGH2-ECO2N and TOUGHREACT, for the simulations of CO2 storage, indicated that 159 million metric tons (175 short tons) of CO2 could be stored in the Middle Donovan formation. An investigation into possible CO2 leakage from the reservoirs indicated that the Ferry Lake Anhydrite serves as a very reliable long term storage seal. The present work can serve as a template for preliminary assessment of tertiary oil recovery and CO2 storage of similar oil reservoirs and saline-water formations.

Download or read book Reservoir Simulation of CO2 Sequestration and Enhanced Oil Recovery in Tensleep Formation Teapot Dome Field written by Ricardo Gaviria Garcia and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Teapot Dome field is located 35 miles north of Casper, Wyoming in Natrona County. This field has been selected by the U.S. Department of Energy to implement a field-size CO2 storage project. With a projected storage of 2.6 million tons of carbon dioxide a year under fully operational conditions in 2006, the multiple-partner Teapot Dome project could be one of the world's largest CO2 storage sites. CO2 injection has been used for decades to improve oil recovery from depleted hydrocarbon reservoirs. In the CO2 sequestration technique, the aim is to "co-optimize" CO2 storage and oil recovery. In order to achieve the goal of CO2 sequestration, this study uses reservoir simulation to predict the amount of CO2 that can be stored in the Tensleep Formation and the amount of oil that can be produced as a side benefit of CO2 injection. This research discusses the effects of using different reservoir fluid models from EOS regression and fracture permeability in dual porosity models on enhanced oil recovery and CO2 storage in the Tensleep Formation. Oil and gas production behavior obtained from the fluid models were completely different. Fully compositional and pseudo-miscible black oil fluid models were tested in a quarter of a five spot pattern. Compositional fluid model is more convenient for enhanced oil recovery evaluation. Detailed reservoir characterization was performed to represent the complex characteristics of the reservoir. A 3D black oil reservoir simulation model was used to evaluate the effects of fractures in reservoir fluids production. Single porosity simulation model results were compared with those from the dual porosity model. Based on the results obtained from each simulation model, it has been concluded that the pseudo-miscible model can not be used to represent the CO2 injection process in Teapot Dome. Dual porosity models with variable fracture permeability provided a better reproduction of oil and water rates in the highly fractured Tensleep Formation.

Download or read book Fundamentals of Carbon Dioxide enhanced Oil Recovery CO2 EOR written by Mahendra Kumar Verma and published by . This book was released on 2015 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis and assessment of enhanced oil recovery baseline data written by LaRue, Moore and Schafer and published by . This book was released on 1976 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Screening and Assessing the CO2 Storage Potential of CO2 EOR in Onshore Oil Fields in Louisiana written by Arnold Oseiy Aluge and published by . This book was released on 2021 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: CO2 enhanced oil recovery (CO2-EOR) is a form of carbon storage that has the potential to minimize CO2 emissions while also increasing energy output from newly recovered oil. Louisiana is the 5th largest emitter of energy-related CO2 in the United States, with about 200 million metric tonnes of CO2 emitted annually. Louisiana has over 20,000 oil and gas reservoirs and 287 CO2 point sources. This study used a screening methodology at the reservoir level to identify appropriate CO2-EOR candidate reservoirs in Louisiana and their CO2-EOR reserve estimates. Also, an economic analysis of CO2-EOR was carried out in this thesis, which included sensitivity and scenario analysis. In Louisiana, this study identified 217 reservoirs across 86 oil fields as potential CO2-EOR candidates. According to the Louisiana assessment, the 217 candidate reservoirs have a total of 1.4 billion STB of OOIP and a 205 million STB incremental oil potential worth $12.3 billion. The CO2 storage capacity of these reservoirs is projected to be 100 million metric tons. There are several other suitable candidate reservoirs in Louisiana that were not taken into account in this analysis. When combined with the reservoirs described in this thesis, the incremental oil recovered potential and CO2 reservoir storage capacity will reach 1.5 billion STB and 2.6 billion metric tons, respectively. In Haynesville, Bayou Segnette, and Paradis, case studies were conducted for suitable CO2-EOR candidate reservoirs. The sensitivity studies revealed that the net income and economic viability of a CO2-EOR project are highly dependent on oil price, CO2 cost, and tax policy. CO2-EOR would benefit greatly from the high oil price, low CO2 cost, and low tax policy. Given the current economic situation, the economic analysis indicates that operating successful CO2-EOR projects would be difficult. However, the study also shows that CO2-EOR projects can be made economically feasible by combining 1. tax reductions/exemptions in areas such as royalties, income tax, and severance tax. 2. negotiating lower CO2 prices 3. Increase in tax credit for capturing facilities to lower CO2 prices for storage parties

Download or read book Carbon Dioxide Enhanced Oil Recovery and Sequestration in the Orion Oil Field in the North Slope Region of Alaska written by Banabas D. Dogah and published by . This book was released on 2021 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon dioxide flooding in viscous oil systems has been proven to improve oil recovery and store CO2 in several geologic basins worldwide. With global energy steadily transitioning towards decarbonization, CO2-EOR and Sequestration can reduce the carbon footprint from crude oil production. Although well accepted globally, the potential of improved oil recovery and CO2 storage capacity has not been extensively studied in Alaska. Since the CO2 injection process involves phase transition, reservoir simulation becomes more complex. It requires reliable techniques to estimate the ultimate recovery factor, oil production rate, and CO2 storage volumes precisely. This study focuses on carbon dioxide enhanced oil recovery (CO2-EOR) and storage in the Orion satellite field of Alaska, its ability to reduce greenhouse gases, and the technical and economic feasibility of a CO2 flooding project. In this study, the Peng-Robinson equation of state is tuned to model fluid behavior from the respective sands accurately. Core flooding results from the Orion Oil Pool in the Schrader Bluff Formation provided the basis for developing relative permeability curves for the various layers in the geological model. The geological model was then coupled with the developed fluid model and introduced into a compositional simulator capable of handling the heterogeneous complexity to simulate CO2 injection. Simulations suggested that the CO2 gas injection is partially miscible in the Orion reservoir at pressures close to the average initial reservoir pressure. Consequently, CO2 mixes with oil in the reservoir, reduces oil viscosity, increases oil mobility, and improves oil recovery. Different simulation scenarios were considered and compared, including the effects of fluid injection mixtures on oil recovery, well trajectory effects, and production bottom hole pressure effects on oil recovery. A considerable volume of injected CO2 is expected to be sequestered in the reservoir, for which economic analysis is conducted for tax credit purposes. The results show that 40% Enriched CO2 injection achieved the highest oil recovery, which highlights the importance of selecting the appropriate injector and producer well trajectory. This work provides insights into the optimum CO2 gas flooding controlling parameters for incremental oil production through sensitivity analysis. The study's novelty is further expanded by quantifying the potential of CO2 sequestration in each layer of the Orion oil field.

Download or read book CO2 Reservoir Oil Miscibility written by Dayanand Saini and published by Springer. This book was released on 2018-06-25 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: This SpringerBrief critically examines the latest experimental and non-experimental approaches used for the fast and reliable characterization and determination of CO2-reservoir oil miscibility in terms of the minimum miscibility pressure (MMP). This book serves as a one-stop source for developing an enhanced understanding of these available methods, and specifically documents, analyses, and evaluates their suitability and robustness for depicting and characterizing the phenomenon of CO2-reservoir oil miscibility in a fast and cost-effective manner. Such information can greatly assist a project team in selecting an appropriate MMP determination method as per the project’s need at a given project’s stage, be that screening, design, or implementation. CO2-Reservoir Oil Miscibility: Experiential and Non-Experimental Characterization and Determination Approaches will be of interest to petroleum science and engineering professionals, researchers, and undergraduate and graduate students engaged in CO2 enhanced oil recovery (EOR) and/or simultaneous CO2-EOR and storage projects and related research. It may also be of interest to engineering and management professionals within the petroleum industry who have responsibility for implementing CO2-EOR projects.

Download or read book Spinning Straw Into Black Gold written by United States. Congress. House. Committee on Natural Resources. Subcommittee on Energy and Mineral Resources and published by . This book was released on 2009 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book CO2 Storage and Enhanced Oil Recovery written by Scott M. Frailey and published by . This book was released on 2012 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Midwest Geological Sequestration Consortium (MGSC) carried out a small-scale carbon dioxide (CO2) injection test in a sandstone within the Clore Formation (Mississippian System, Chesterian Series) in order to gauge the large-scale CO2 stoage that might be realized from enhanced oil recovery (EOR) of mature Illinois Basin oil fields via miscible liquid CO2 flooding." -- abstract