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Measurement Of The Flow Properties And Capillary Pressure Relationships Of Certain Coals Pertaining To Underground Coal Gasification Quarterly Report March May 1977
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Book Synopsis Measurement of the Flow Properties and Capillary Pressure Relationships of Certain Coals Pertaining to Underground Coal Gasification. Quarterly Report, March--May 1977 by :
Download or read book Measurement of the Flow Properties and Capillary Pressure Relationships of Certain Coals Pertaining to Underground Coal Gasification. Quarterly Report, March--May 1977 written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurement of the absolute permeability to gas, porosity, and effective and relative permeability to gas of the Pittsburgh bituminous coal and the Hanna, Wyoming subbituminous coal has been extended. The same measurements have been made on several samples from the Gillette, Wyoming subbituminous coal. Shrinkage of both coals with drying was also measured. The gas relative permeability curves of the coals are compared and the difference is striking. The rate of increase in permeability to gas past the critical gas saturation is significantly greater as the rank of the coal decreases. Similarly values of absolute permeability, shrinkage, and porosity are inverse functions of rank. The critical gas saturation does not appear to be a function of rank.
Book Synopsis Measurement of the Flow Properties and Capillary Pressure Relationships of Certain Coals Pertaining to Underground Coal Gasification. Quarterly Report, June--August 1977 by :
Download or read book Measurement of the Flow Properties and Capillary Pressure Relationships of Certain Coals Pertaining to Underground Coal Gasification. Quarterly Report, June--August 1977 written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Gas-phase permeabilities of five samples from the Hanna IV site were measured as functions of water saturation. These samples were cut from a core which was obtained in-situ at a subsurface depth of approximately 335 feet. In addition effective permeabilities to water were measured over an increasing water saturation cycle for three Hanna and two Pittsburgh coals obtained from surface mines. Absolute permeabilities to gas as a function of overburden pressure were measured for one additional Hanna surface sample. Preliminary results of carbon dioxide flows through the three coals are briefly discussed.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1978 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fossil Energy Update written by and published by . This book was released on 1978 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on 1991 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book SPE Reprint Series written by and published by . This book was released on 1992 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1978 with total page 1052 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Book Synopsis Monthly Catalog of United States Government Publications by : United States. Superintendent of Documents
Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1979 with total page 1130 pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1978 with total page 1606 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Flow Properties of Coals for In-situ Gasification. Quarterly Report, December 1977--February 1978. [Different Gases, Degree of Water Saturation, Etc]. by :
Download or read book Measurement of the Flow Properties of Coals for In-situ Gasification. Quarterly Report, December 1977--February 1978. [Different Gases, Degree of Water Saturation, Etc]. written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The effective and relative permeabilities of Gillette, Wyoming sub-bituminous and Pricetown, W. Va. bituminous coals to carbon dioxide were measured as functions of water saturation and structural orientation at simulated overburden pressures of 200 psig and 400 psig. The results indicate that carbon dioxide has a negligible effect on permeability reduction. This fact is of interest to both in-situ coal gasification and to methane drainage. Reductions in permeability were of the order of 0 to 20 percent of values determined with nitrogen. The effect of CO/sub 2/ on the Gillette coals was to drastically alter the shape of the effective and relative permeability curves at lower water saturations. The effect of doubling the overburden pressure had a proportionally inverse effect on the effective permeabilities to gas. This effect is most pronounced at lower water saturations. The general characteristic behavior of the relative permeability curves remained relatively independent of the stress field.
Book Synopsis Measurement of the Flow Properties of Coals for In-situ Gasification. Final Report, December 1977--November 1978. [With Dependence on Degree of Water Saturation]. by :
Download or read book Measurement of the Flow Properties of Coals for In-situ Gasification. Final Report, December 1977--November 1978. [With Dependence on Degree of Water Saturation]. written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The effective and relative permeabilities of six coals, comprising thirty-five samples, to nitrogen and carbon dioxide were measured as functions of water saturation and overburden pressure. The coals consist of bituminous, sub-bituminous and lignite types. Simulated overburden pressures ranged from 200 psig to 550 psig. All tests were performed over a decreasing water saturation cycle. Values of porosity, absolute permeability, shrinkage and critical gas saturation were measured on numerous samples. Average values are correlated as to coal type and structural orientation whenever the latter was discernible. The results indicate that CO/sub 2/ reduces the effective permeabilities by a moderate amount vis-a-vis nitrogen. The effect of overburden pressure was to drastically reduce the effective permeabilities. The relative permeability curves were significantly distinct as regards coal type and generalized (averaged) results are presented for universal employment. The characteristic shape of the relative permeability curves remain approximately independent of the magnitude of the stress field. In all, sixty-seven cores were tested over the two year period of both contracts, yielding seventy-six effective permeability curves. Thirty-five samples were tested during the current contract period, yielding forty-four effective permeability curves. Numerous other samples were tested for various point values, such as porosity and absolute permeability.
Book Synopsis Phase Equilibrium and Volumetric Properties of Coal-derived Fluids by : Oklahoma State University. School of Chemical Engineering
Download or read book Phase Equilibrium and Volumetric Properties of Coal-derived Fluids written by Oklahoma State University. School of Chemical Engineering and published by . This book was released on 1979 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data have been obtained at 100°C on the volumetric properties of three binary gas systems: hydrogen + methane, hydrogen + carbon dioxide and methane + carbon dioxide. Interaction virial coefficients evaluated from these data are estimated to be precise to ± 0.5 cc/gmol. In the vapor--liquid equilibrium study, the equipment and analytical techniques have been refined and data acquisition has begun. K-values have been measured at 220°F and pressures from 200 to 2,000 psia on the multicomponent system methane, ethane, propane, toulene, 1-methylnaphthalene. Precision of the data is estimated to vary from 2% for methane to 10% for 1-methylnaphthalene.
Book Synopsis Development of techniques and the measurement of relative permeability and capillary pressure relationships in coal by : Joseph J. Taber
Download or read book Development of techniques and the measurement of relative permeability and capillary pressure relationships in coal written by Joseph J. Taber and published by . This book was released on 1974 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Flow Properties of Coals for In-situ Gasification. Progress Report, July 1978--September 1978. [As a Function of Water Saturation and Orientation]. by :
Download or read book Measurement of the Flow Properties of Coals for In-situ Gasification. Progress Report, July 1978--September 1978. [As a Function of Water Saturation and Orientation]. written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The effective and relative permeabilities of Hanna, Wyoming sub-bituminous coals and Texas lignites to nitrogen and carbon dioxide were measured as functions of water saturation and structural orientation at simulated overburden pressures of 200 psig and 400 psig. Porosity values derived from water saturation and shrinkage values were also obtained for the six Hanna and three lignite samples which were tested. The results of permeability tests on five Texas lignites reported previously were coupled with the three new runs to obtain average relative permeability curves for the lignites. The present work merely adds to the statistical population developed under the contract and analysis will be a partial function of the final report.
Book Synopsis Determination of Capillary Pressure, Relative Permeability and Pores Size Distribution Characteristics of Coal from Sydney Basin-Canada by : Anita Nourbakhsh
Download or read book Determination of Capillary Pressure, Relative Permeability and Pores Size Distribution Characteristics of Coal from Sydney Basin-Canada written by Anita Nourbakhsh and published by . This book was released on 2012 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT CONT'D : The elaborate experimental design and precise measurements using capillary pressure unit (TGC-764) with a pressure control module makes the acquired petro-physical data a valuable asset for future carbon dioxide enhanced coal bed methane production.
Book Synopsis Proceedings, Seventh International Technical Conference on Slurry Transportation, March 23-26, 1982, Lake Tahoe, Nevada by :
Download or read book Proceedings, Seventh International Technical Conference on Slurry Transportation, March 23-26, 1982, Lake Tahoe, Nevada written by and published by . This book was released on 1982 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis DNAPL Site Evaluation by : James W. Mercer
Download or read book DNAPL Site Evaluation written by James W. Mercer and published by CRC-Press. This book was released on 1993-04-29 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: DNAPL Site Evaluation covers long-term contamination of ground water by DNAPL (dense non-aqueous phase liquids) chemicals. The book develops a framework for planning and implementing DNAPL site characterization activities. It provides detailed methods to identify, characterize, and monitor sites and analyzes their utility, limitations, risks, availability, and cost. Methods to interpret contaminant fate and transport are identified, and new site characterization methods are assessed. DNAPL Site Evaluation will maximize the cost-effectiveness of site investigation/remediation by providing the best information available to describe and evaluate methods to be used for determining the presence, fate, and transport of subsurface DNAPL contamination. The book will be a useful reference for groundwater professionals and environmental regulatory personnel.
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