Download or read book Quantitation of Microbial Products and Their Effectiveness in Enhanced Oil Recovery written by Xu Zhang and published by . This book was released on 1995 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quantitation of Microbial Products and Their Effectiveness in Enhanced Oil Recovery Final Report written by and published by . This book was released on 1995 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: A three-dimensional, three-phase, multiple-component numerical simulator was developed to investigate transport and growth of microorganisms in porous media and the impacts of microbial activities on oil recovery. The microbial activities modeled in this study included: (1) growth, retention, chemotaxis, and end product inhibition of growth, (2) the formation of metabolic products, and (3) the consumption of nutrients. Major mechanisms for microbial enhanced oil recovery (MEOR) processes were modeled as follows: (1) improvement in sweep efficiency of a displacement process due to in situ plugging of highly-permeable production zones by cell mass or due to improved mobility control achieved by increasing the viscosity of the displacing fluid with a biopolymer, and (2) solubilization and mobilization of residual oil in porous media due to the reduction of the interfacial tension between oleic and aqueous phases by the production of a biosurfactant. The numerical solutions for mathematical models involved two steps. The distributions of pressure and phase saturations were solved from continuity equations and Darcy flow velocities for the aqueous phase were computed. This was followed by the solution of convection-dispersion equations for individual components. Numerical solutions from the proposed model were compared to results obtained from analytical equations, commercial simulators, and laboratory experiments. The comparison indicated that the model accurately quantified microbial transport and metabolism in porous media, and predicted additional crude oil recovery due to microbial processes. 50 refs., 41 figs., 26 tabs.
Download or read book Quantitation of Microbial Products and Their Effectiveness in Enhanced Oil Recovery written by United States. Dept. of Energy and published by . This book was released on 1992 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microbial Enhanced Oil Recovery written by T.F. Yen and published by CRC Press. This book was released on 1989-12-21 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides a comprehensive review that consolidates all of the pertinent information available. Microbial Enhanced Oil Recovery (MEOR) involves many scientific disciplines, many different approaches, and many different countries. This book supplies the information needed for continued development of MEO methods and points out areas where information is lacking and where more research is needed. This easy-to-use resource focuses on the three types of MEOR processes which can be utilized to recover oil from reservoirs. Successful MEOR involves contributions from petroleum, chemical, genetic, environmental, geotechnical, and bioengineering. Also, geology, chemistry, and microbiology play a major role as well. This critical review book includes a comprehensive reference list and opens the lines of communication among the various fields of study. This work will also encourage the exchange of ideas and interaction necessary for success in this quickly developing technology. Scientists, researchers, and practitioners will find this text to be interesting, informative, and indispensable.consolidatesR
Download or read book Quantitation of Microbial Products and Their Effectiveness in Enhanced Oil Recovery Quarterly Technical Progress Report October 16 1992 January 16 1993 written by and published by . This book was released on 1992 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goals of this project are to determine the growth kinetics and the relationships that exist between microbial growth, microbial product formation and oil recovery, and to develop mathematical models that predict microbial activity in porous materials. The studies on the influence of microbial growth and product formation on the recovery of residual oil from Berea sandstone cores were continued this quarter. The experiments were carried out at 36°C using the high pressure core apparatus described previously. Four microbial and nutrient treatments were carried out on a single Berea sandstone core, using the microorganism Clostridium acetobutylicum suspended in a glucose-mineral salts medium. The experimental conditions used are listed in Table 1. Microbial growth in the core was monitored by following pore pressure changes.
Download or read book Theory and Practice in Microbial Enhanced Oil Recovery written by Kun Sang Lee and published by Gulf Professional Publishing. This book was released on 2020-07-18 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Selection of the optimal recovery method is significantly influenced by economic issues in today’s oil and gas markets. Consequently, the development of cost-effective technologies, which bring maximum oil recovery, is the main interest in today’s petroleum research communities. Theory and Practice in Microbial Enhanced Oil Recovery provides the fundamentals, latest research and creditable field applications. Microbial Enhanced Oil Recovery (MEOR) is potentially a low-priced and eco-friendly technique in which different microorganisms and their metabolic products are implemented to recover the remaining oil in the reservoir. Despite drastic advantages of MEOR technology, it is still not fully supported in the industry due to lack of knowledge on microbial activities and their complexity of the process. While some selected strategies have demonstrated the feasibility to be used on a mass scale through both lab and field trials, more research remains to implement MEOR into more oil industry practices. This reference delivers comprehensive descriptions on the fundamentals including basic theories on geomicrobiology, experiments and modeling, as well as current tested field applications. Theory and Practice in Microbial Enhanced Oil Recovery gives engineers and researchers the tool needed to stay up to date on this evolving and more sustainable technology. Covers fundamental screening criteria and theories selective plugging and mobility control mechanisms Describes the basic effects on environmental parameters and the mechanics of simulation, including microbial growth kinetics Applies up to date practical applications proven in both the lab and the field
Download or read book Microbial Enhanced Oil Recovery written by Lalit Pandey and published by Springer Nature. This book was released on 2021-10-21 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the fundamentals of the reservoir and interfacial engineering. The book systematically starts with the basics of primary, secondary and tertiary (enhanced) oil recovery and emphasizes on the theory of microbial-enhanced oil recovery (MEOR) and its potential toward recovery of oil in place. Different approaches of MEOR such as in-situ, ex-situ, and integration of chemical- and microbial-enhanced oil recovery (EOR) are discussed in detail. This book highlights the link between the effectiveness of MEOR and the local reservoir conditions, crude oil characteristics, and indigenous microbial community. The latest implementations of MEOR across the globe are highlighted as case studies to outline the potential as well as the scope of MEOR. Given the topics covered, this book will be useful for professionals and researchers working in the areas of petroleum science and engineering, chemical engineering, biotechnology, bioengineering, and other related fields.
Download or read book Bacteria and the Enhancement of Oil Recovery written by V. Moses and published by . This book was released on 1982 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microbial Enhanced Oil Recovery Research Final Report Annex 5 written by and published by . This book was released on 1993 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this project was to develop an engineering framework for the exploitation of microorganisms to enhance oil recovery. An order of magnitude analysis indicated that selective plugging and the production of biosurfactants are the two most likely mechanisms for the mobilization of oil in microbial enhanced oil recovery (MEOR). The latter, biosurfactant production, is easier to control within a reservoir environment and was investigated in some detail. An extensive literature survey indicated that the bacterium Bacillus licheniformis JF-2 produces a very effective surface active agent capable of increasing the capillary number to values sufficiently low for oil mobilization. In addition, earlier studies had shown that growth of this bacterium and biosurfactant production occur under conditions that are typically encountered in MEOR, namely temperatures up to 55°C, lack of oxygen and salinities of up to 10% w/v. The chemical structure of the surfactant, its interfacial properties and its production by fermentation were characterized in some detail. In parallel, a set of experiments as conducted to measure the transport of Bacillus licheniformis JF-2 in sandpacks. It was shown that the determining parameters for cell transport in porous media are: cell size and degree of coagulation, presence of dispersants, injection velocity and cell concentration. The mechanisms of bacteria retention within the pores of the reservoir were analyzed based on heuristic arguments. A mathematical simulator of MEOR was developed using conservation equations in which the mechanisms of bacteria retention and the growth kinetics of the cells were incorporated. The predictions of the model agreed reasonably well with experimental results.
Download or read book Microbial Enhancement of Oil Recovery written by Erle C. Donaldson and published by Elsevier Publishing Company. This book was released on 1991 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: This conference was instituted to examine field activities in Microbial Enhancement of Oil Recovery. The U.S. Department of Energy has sponsored several field projects and the details from some of these were presented, as well as a few from industry. The balance of the program was concerned with new developments in research. Today's oil production technology leaves one third to one half of the original oil in place in the reservoir at abandonment of secondary recovery (waterflooding). This leaves a very large target for microbial enhanced oil recovery which was shown by the research papers of this conference to be capable of producing up to 50% of the residual oil. The field trials show that the normal projected oil production decline curve can be reversed, or leveled off by microbial enhancement of oil recovery. This conference has shown that a variety of applications are possible to correct oilfield problems as well as to enhance oil recovery. Among these is the suppression of hydrogen sulfide production which alone is a tremendous advance because of the large quantity of sour oil production.If hydrogen sulfide production can be curtailed it would increase the value of the produced oil, decrease it toxicity, and largely decrease it corrosiveness. All of these would be welcome both in the field and at the petroleum refinery where special precautions must be taken to process sour crude oil. Another very important discovery is the ability of certain bacteria to eliminate paraffin deposition around the producing well and in the tubulars. This is a welcome improvement for many producers who have considerable difficulty in controlling paraffin deposition.
Download or read book Investigations of Mechanisms of Microbial Enhanced Oil Recovery by Microbes and Their Metabolic Products written by National Institute for Petroleum and Energy Research (Bartlesville, Okla.). and published by . This book was released on 1990 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conference on Microbiological Processes Useful in Enhanced Oil Recovery Final Report written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Six formal presentations were made at the meeting, followed by four workshops dealing with specific topics: bioengineering, reservoir ecology and environment, transformations, and bioproducts. All were related to microbial enhancement of oil recovery. (DLC).
Download or read book Microbial Products in Enhanced Oil Recovery microform written by Juliana Akit Ramsay and published by National Library of Canada. This book was released on 1987 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conference on Microbiological Processes Useful in Enhanced Oil Recovery written by Science Applications, inc and published by . This book was released on 1979 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigations of Mechanisms of Microbial Enhanced Oil Recovery by Microbes and Their Metabolic Products written by and published by . This book was released on 1990 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments at NIPER have demonstrated that oil mobilization by microbial formulations is not merely the result of the effects of the metabolic products from the in situ fermentation of nutrient. A combination of two microorganisms, Bacillus licheniformis, NIPER and a Clostridium species (NIPER 6) was determined to be an effective microbial formulation for the recovery of residual crude oil in porous media. Flask tests with various nutrients and environmental conditions were used to evaluate the growth and metabolite production of NIPER 1 and 6. Several interfacial tension (IFT) measurements were conducted using certain metabolic products from the combined microbial cultures NIPER 1 and NIPER 6. Nonane was used as the oil for these experiments, since crude oil from Delaware-Childers field emulsifies very easily. The IFT of a selected microbial formulation were measured with two different crude oils using brines of varying salinities. Comparisons were made with saline brines containing only the nutrient and with microbial metabolite solutions from which the active cells have been removed by filtration to isolate the specific effects of the microbial cells. Etched-glass micromodel studies showed that the microbial formulation effectively mobilized crude oil trapped after waterflooding. Wettability alteration and unsteady-state relative permeability tests were performed in Berea Sandstone cores. 16 refs., 17 figs., 12 tabs.
Download or read book Microbial Enhanced Oil Recovery Research Annex 5 Summary Annual Report written by and published by . This book was released on 1990 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this work is to develop an engineering framework for the exploitation of microorganisms to enhance oil recovery. Specific goals include: (1) investigation of the mechanisms of microbially induced oil mobilization; (2) the production, isolation, chemical characterization and study of the physical properties of microbially produced surfactants; (3) model studies in sandstone cores for the characterization of the interactions between growing microbially cultures and oil reservoirs; (4) development of simulators for MEOR; and (5) design of operational strategies for the sequential injection of microorganisms and nutrient in reservoirs are: (1) systematic discussion of the mechanisms important in MEOR processes; (2) Measurement of the growth characteristics of Bacillus Licheniformis under various conditions of pH, temperature and salt concentration for both aerobic and anaerobic growth.; (3) measurement of interfacial tension reducing ability of the biosurfactant under different conditions of pH and salt concentration; (4) development of some preliminary methods to concentrate and characterize the biosurfactant; (5) development of a compositional numerical simulator for MEOR processes; and (6) Measurement of the lowest interfacial tension (IFT) value reported for biosurfactants to date. Demonstration of the fact that the low IFT values required for oil recovery can be attained with biosurfactants.
Download or read book The Use of Microorganisms in Enhanced Oil Recovery written by and published by . This book was released on 1985 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
