Download or read book A Laboratory Investigation of Selected Reservoir and Operational Parameters in Cyclic CO2 Injection for Light Oil Recovery written by Juan Carlos Ramos Deleon and published by . This book was released on 1987 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract.
Download or read book Cyclic CO2 Injection for Light Oil Recovery written by and published by . This book was released on 1992 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ultimate objectives of the research were to provide a base of knowledge on the cyclic CO2 stimulation (or CO2 huff-n-puff) process for the enhanced recovery of Louisiana crude oil, and to demonstrate the utility of the process to the small independent producer. The project was divided into four subtasks: laboratory coreflood experiments, computer simulation, field testing, and technology transfer. Laboratory corefloods were performed to investigate important process parameters. Computer simulation was used to confirm and expand laboratory coreflood results. A field-test data base was constructed and analyzed to facilitate target reservoir screening and to identify successful operational practices. The laboratory coreflood results and data base evaluations were used in the design and implementation of a field test that was conducted in conjunction with the private sector. The results of laboratory and field studies were disseminated to the industry through presentations at technical conferences and publications in technical journals.
Download or read book Mechanisms of Oil Recovery During Cyclic CO2 Injection Process written by Ali Abedini and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994-02 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cyclic CO Sub 2 Injection for Light Oil Recovery written by and published by . This book was released on 1990 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ultimate objective of this research is to provide a base of knowledge on the CO2 huff n' puff process for the enhanced recovery of Louisiana crude oil. Project goals include laboratory corefloods to investigate several parameters important to the process, and numerical simulation to interpret coreflood results. Additional activities include construction and analysis of a field test data base to facilitate target reservoir screening, and to identify sensitive operational parameters. This quarter, one final horizontal coreflood was performed to examine the influence of remaining oil saturation. An environmental assessment was performed in order to assess environmental impacts; and a numerical simulation was performed. 7 refs., 4 figs.
Download or read book Enhanced Oil Recovery and Carbon Dioxide Sequestration in Zama Keg River F Pool written by Adal Al-Dliwe and published by . This book was released on 2005 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon dioxide (CO2) injection is an effective and promising technology for enhanced oil recovery and for reducing anthropogenic gas emissions. In this process, CO2 develops miscibility with the oil under reservoir conditions and leads to additional oil recovery. Proper reservoir characterization has a significant influence on implementing a successful CO2 flood in a reservoir. Computer simulation is an important tool for reservoir characterization and predicting optimal tradeoffs between maximum oil recovery and CO2 storage. This thesis presents the results of reservoir characterization analysis and simulation in Zama Keg River F Pool located in Northern Alberta, Canada, which was selected as a candidate for CO2 injection. This reef has a thick oil column spanned over a small area and two wells drilled on the same side of the reef. Open-hole logs and core analysis data were available for only one of the two wells. Data analyses disclosed a number of challenges that could adversely affect the results of any simulation for predicting the performance of CO2 displacement in this field. These challenges included, but were not limited to, the existence of two no-flow barriers with unknown extensions, lack of other data such as relative permeability, and lack of information on lateral distribution of the reservoir properties. Material balance analysis indicated the maximum oil in place was 4.7 MMSTB with a weak water support. A fully compositional reservoir simulation model was used to improve the understanding of the reservoir characteristics, investigate the potential amount of CO2 stored, and study the effect of CO2 injection on oil recovery using different injection strategies. Effects of different operational parameters on pore scale displacement efficiency and the overall displacement efficiency were studied. These parameters include production and injection rates, injection gas composition, well completion, mode of injection, and the timing of injection. Results of this thsesi show that by using a combination of two vertical injectors and one horizontal producer, maximum incremental oil would be recovered while a large volume of CO2 would be stored, a high net utilization factor was obtained, and maximum NPV was generated as compared to other injection-production schemes.
Download or read book A Comprehensive Study of CO2 Enhanced Oil Recovery in the Langgak Field written by Dr.-Eng, Muslim and published by UIR Press. This book was released on 2021-04-08 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is based on the laboratory and field research on Langgak Field, operated by SPR Langgak as one of Province-Owned Oil Company. This book is written to be a guideline and to add knowledge related to enhanced oil recovery (EOR) activity, particularly CO2 Injection. The authors are aware that the information about EOR activity in Indonesia is still limited, so with the presence of this book, we hope it can be made as a reference, not only for students but also for engineers and other researchers who would like to carry out or perform EOR project using CO2 Injection. The authors realize that there are some flaws in the completion of this book. Nonetheless, the authors believe this book will serve as a foundation for other CO2 EOR projects in Indonesia and improve the readers' understanding of CO2 Injection activity. Special thanks are given to the Director of PT. SPR Langgak, Mr Ikin Faizal, who gave us excellent support in the making of this book.
Download or read book Heavy Crude Oil Recovery written by E. Okandan and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: Within the last 10 years the world has come to a point where the easily explorable oil deposits have now been found, and it is anticipated that such deposits will be depleted by the beginning of the Twenty-first Century. However, the increasing demand of man kind for energy has caused technologists to look into ways of find ing new sources or to reevaluat:e unconventional sources which, in the past, have not been economical. In this respect, heavy crude and tar sand oils are becoming important in fulfilling the world's energy requirements. What are heavy crude and tar sand oils? There is still some confusion as to their definitions, inasmuch as they vary among organizations and countries. In an effort to set agreed meanings, UNITAR, in a meeting in February 1982 in Venezuela, proposed the following definitions (see also Table 1): 1. Heavy crude oil and tar sand oil are petroleum or petroleum like liquids or semi-solids naturally occurring in porous media. The porous media are sands, sandstone, and carbonate rocks. 2. These oils will be characterized by viscosity and density. Viscosity will be used to define heavy crude oil and tar sand oil, and density (oAPI) will be used when viscosity measurements are not available. 3. Heavy crude oil has a gas-free viscosity of 100-10000 mPa.s (cp) 3 o at reservoir temperatures, or a density of 943 kg/m (20 API) 3 o o to 1000 kg/m (10 API) at 15.6 C and at atmospheric oressure.
Download or read book SPE Reservoir Engineering written by and published by . This book was released on 1994 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Transactions of the Society of Petroleum Engineers written by and published by . This book was released on 1994 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Continuous CO2 Injection Design in Naturally Fractured Reservoirs Using Neural Network Based Proxy Models written by Hassan Hamam and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: More than 60% of the original oil in place (OOIP) is left in the ground after the primary and secondary recovery processes. With the introduction of enhanced oil recovery (EOR), that number goes down to about 40% of the OOIP. Carbon dioxide (CO2) injection is one of the most effective EOR methods in naturally fractured reservoirs. The fracture network provides a faster means for fluid flow due to its high conductivity but it is also the cause of premature breakthrough of the injected fluids. However, if employed efficiently, fractures can help push the injected CO2 to the reservoir boundaries so that a large portion of the reservoir fluid interacts with the injected CO2. Zones swept by miscible CO2 reported the lowest residual oil saturation.Continuous CO2 injection is becoming more and more preferred to the popular cyclic pressure pulsing. Continuous CO2 injection has no down time and could potentially provide better CO2 interaction with the reservoir fluid which provides a higher recovery. In this research, artificial neural networks (ANNs) are used to construct robust proxy models with highly predictive capabilities for naturally fractured reservoirs undergoing continuous CO2 injection. The main purpose of this research is to shed more light and understanding on continuous CO2 injection in naturally fractured reservoirs and provide a tool that empowers engineers to make decisions on the fly while evaluating uncertainty and mitigating risk rather than wait months or years to do so. In light of the above, various ANN designs and configurations undergo development and evolution to ultimately be able to provide valuable insights regarding reservoir performance, history matching, and injection design for naturally fractured reservoirs undergoing CO2 injection. Initial ANN designs targeted specific reservoirs using specific fluid compositions from the literature. The designed ANNs were able to provide predictions with a low degree of error. ANN designs went over many complex adjustments, variations, and enhancements until final configurations were reached. The final ANN designs developed in this research surpass previously developed ANNs in similar projects with its capability to handle a huge range of reservoir properties, relative permeability, capillary pressure, and fluid compositions under uncertainty.The reservoir simulation model used in this research is a two-well, two-layer, miscible compositional simulation model working in a dual-porosity system. Critical parameters affected the accuracy and predictability of the ANN designs and they were an essential part of the final ANN configurations. The parameters that a major effect on continuous CO2 injection are reservoir fluid composition, fracture permeability, well spacing, bottomhole flowing pressure (BHFP), thickness, and CO2 injection amount under miscible conditions had the highest impact on recovered oil.The final ANN designs were encompassed inside a graphical user interface that equipped the ANN with uncertainty evaluation capabilities. The ease to use nature of the GUI allows anyone to use the developed ANNs in this research, as well as provide a simple intuitive interface to manipulate input data, run simultaneous sensitivity and uncertainty analysis. The developed ANNs in this research bring us a step closer to achieving real-time simulation for naturally fractured reservoirs undergoing CO2 injection. The correlations embedded in the ANNs were able to overcome reservoir fluid, relative permeability, and capillary pressure limitations that existed in the previous ANN studies.
Download or read book An Investigation of Parameters Affecting Oil Recovery Efficiency of Carbon Dioxide Flooding in Cross sectional Reservoirs written by Mansour Saleh Almalik and published by . This book was released on 1988 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transactions of the American Institute of Mining Metallurgical and Petroleum Engineers written by American Institute of Mining, Metallurgical, and Petroleum Engineers and published by . This book was released on 1995 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some vols., 1920-1949, contain collections of papers according to subject.
Download or read book Oil recovery by carbon dioxide injection written by Pennzoil Company and published by . This book was released on 1977 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Core scale Investigation CO2 Enhanced Oil Recovery EOR and Geological Sequestration in Tight Sandstone of Yanchang Formation the Ordos Basin China written by Danchen Li and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this work, an integrated experimental and numerical investigation was implemented to evaluate carbon dioxide (CO2) enhanced oil recovery (EOR) and geological sequestration using core samples from the Yanchang Formation in the Ordos Basin, China, a sandstone formation representative of tight oil reservoirs. The first study phase, laboratory experiments, examined and quantified the fundamental mechanisms of CO2 displacement via interfacial tension tests, viscosity measurements, contact angle measurements, and constant composition expansion tests. For both unfractured and fractured core samples, three injection strategies of CO2 continuous flooding, water alternative gas injection (WAG: CO2), and cyclic CO2 injection were examined. For fractured core samples, CO2 foam/surfactant alternative gas injection (SAG) was also evaluated. WAG and CO2 foam/SAG injections were superior to continuous CO2 injection for oil recovery but inferior in CO2 storage due to pore-occupation by intermittent liquid-slug injections. Cyclic CO2 injection was the most effective dual-purpose injection strategy though its effectiveness was reduced by preferential breakthrough in fractures. Secondly, a multiphase compositional simulation study examined CO2 displacement in an unfractured tight core. This phase included digital core reconstruction, sensitivity analysis of saturation functions, history match of the three laboratory-tested injection strategies, and their optimization. Modeling verified the laboratory observations and led to additional findings: (1) extended soaking enhanced oil recovery but was limited by the low CO2 injection rate; (2) increasing the cycle size for favorable mobility control improved WAG injection performance; (3) total CO2 injection volume for the improved sweeping volume was the most important factor in cyclic CO2 injection.
Download or read book Oil recovery by carbon dioxide injection written by Pennzoil Company and published by . This book was released on 1977 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
