Effect of Core Length on Laboratory Displacement of Oil by CO2 in Sandstone PDF Download
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Author: Kenneth Yun-Kwong Chan
Publisher:
ISBN:
Category :
Languages : en
Pages : 108
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Author: Kenneth Yun-Kwong Chan
Publisher:
ISBN:
Category :
Languages : en
Pages : 108
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Author: Wafik Hussein Turki
Publisher:
ISBN:
Category :
Languages : en
Pages : 106
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Author: Danchen Li
Publisher:
ISBN:
Category : Carbon dioxide
Languages : en
Pages : 0
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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.
Author: Wade H. Shafer
Publisher: Springer Science & Business Media
ISBN: 147575776X
Category : Science
Languages : en
Pages : 299
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Masters Theses in the Pure and Applied Sciences was first conceived, published, and dis seminated by the Center for Information and Numerical Data Analysis and Synthesis, (CINDAS) *at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the ac tivity was transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volume were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 19 (thesis year 1974) a total of 10,045 theses titles from 20 Canadian and 209 United States universities. We are sure that this broader base for theses titles reported will greatly enhance the value of this important annual reference work. The organization of Volume 19 is identical to that of past years. It consists of theses titles arranged by discipline and by university within each discipline.
Author: Fred I. Stalkup
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 224
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Author:
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 732
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Author:
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ISBN:
Category : Carbon dioxide
Languages : en
Pages : 60
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Author:
Publisher:
ISBN:
Category : Fossil fuels
Languages : en
Pages : 698
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Author:
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ISBN:
Category : Power resources
Languages : en
Pages : 464
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Author:
Publisher:
ISBN:
Category : Oil fields
Languages : en
Pages : 444
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