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Title Multiphase flow through cleats in coal. Annual report, January-December 1993
Creator/Author Pyrak-Nolte, L.J.
Publication Date1994 May 01
OSTI IdentifierOSTI ID: 6998332
Report Number(s)PB-94-203445/XAB
Other Number(s)Other: CNN: GRI-5092-260-2507
Resource TypeTechnical Report
Specific TypeProgress Report
Resource RelationOther Information: Color illustrations reproduced in black and white
Research OrgNotre Dame Univ., IN (United States). Dept. of Civil Engineering and Geological Sciences
Subject01 COAL, LIGNITE, AND PEAT; COAL DEPOSITS; PERMEABILITY; POROSITY; MULTIPHASE FLOW; PROGRESS REPORT; RESERVOIR ENGINEERING; DOCUMENT TYPES; ENGINEERING; FLUID FLOW; GEOLOGIC DEPOSITS; MINERAL RESOURCES; RESOURCES
Description/AbstractEffective cleat porosity, cleat aperture, cleat network interconnectedness, and absolute water permeability values were measured for Fruitland Formation coal cores from the San Juan Basin of Colorado and New Mexico. The mean coefficient of variance (expected percent error) value for seven sets of replicate unsteady state method effective cleat porosity measurements was 5.4%. The measured values of the effective cleat porosity obtained using Wood's metal porosimetry exhibited systematic negative bias compared to values obtained using the unsteady state helium/water displacement method. The bias occurs because the Wood's metal accesses a more limited pore size distribution than does the helium/water.
Country of PublicationUnited States
LanguageEnglish
FormatMedium: X; Size: Pages: (43 p)
AvailabilityNTIS
System Entry Date2008 Feb 08

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