New PDF release: microbial enhancement of oil recovery—recent advances,


By Erle C. Donaldson (Eds.)

ISBN-10: 0080868894

ISBN-13: 9780080868899

ISBN-10: 0444886338

ISBN-13: 9780444886330

This convention was once instituted to check box actions in Microbial Enhancement of Oil restoration. The U.S. division of power has backed a number of box tasks and the main points from a few of these have been provided, in addition to a number of from undefined. The stability of this system was once involved in new advancements in learn. modern oil creation expertise leaves one 3rd to 1 1/2 the unique oil in place Read more...

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Extra resources for microbial enhancement of oil recovery—recent advances, Proceedings of the 1990 international conference on microbial enhancement of oil recovery

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Determination of the change in properties of the ferment liquor: (a) evaluation of the interfacial tension change during the evolution of the active surfactant. The lowering of the interfacial tension between the rock and oil by the action of the surfactants is a desired property for MEOR; and (b) determination of the organic acidity of the ferment liquor. 31 3. By physical modelling of the displacement process of oil in laboratory through core samples, both under atmospheric and elevated pressure, to simulate the conditions underground.

W. Wang, 1988. In addition, the transport characteristics of surfactants and ferment mixtures through artificial and natural core samples were investigated in the laboratory of the Research Institute, and other research organizations, to obtain fundamental insights into the recovery processes. All these research activities were closely coordinated by the China National Petroleum Corporation (CNPC), formerly the Ministry of Petroleum, China. INJECTION OF SELECTED SPECIES OF MICROORGANISMS INTO OIL-PRODUCING WELLS Screening of strains of microorganisms used for injection into oil reservoirs for EOR is a cooperative effort carried out by the Daqing Oilfield and the Beijing Institute of Microbiology of the Academy of Science, China (Zhang, 1990).

Modelling of Promising results were obtained in the laboratory. the displacement behavior both at atmospheric and Physical elevated pressure were performed in Daqing. The criteria for the screening for suitability of a bacteria species for MEOR are as follows: 1. Determination of the change in properties of the crude oil before and after fermentation: (a) Engler distillation with the increase of the percentage of IBP-lOO°C as the degree of degradation of the crude; (b) chromatographic analysis to detect the change of the ratio of iso-Clg/C17 and iso-C2g/C1a as the indication of the degree of degradation, the higher this ratio, the higher the degree of degradation (where: iso-Clg --- 2,6,10,14-tetramethylpentadecane, iso-Czo --- 2,6,10,14-tetrarnethylhexadecane), and (c) group analysis of the crude to find the changes of the content of paraffins aromatics, resins and asphaltenes before and after fermentation, this gave us some clue as to which part of the crude oil was subjected to attack by the bacteria.

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microbial enhancement of oil recovery—recent advances, Proceedings of the 1990 international conference on microbial enhancement of oil recovery by Erle C. Donaldson (Eds.)

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