SciTech Connect

Title: Multiphase flow through cleats in coal. Annual report, January-December 1993

Multiphase flow through cleats in coal. Annual report, January-December 1993 Effective 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.
Authors:
Publication Date:
OSTI Identifier:6998332
Report Number(s):PB-94-203445/XAB
CNN: GRI-5092-260-2507
Resource Type:Technical Report
Resource Relation:Other Information: Color illustrations reproduced in black and white
Research Org:Notre Dame Univ., IN (United States). Dept. of Civil Engineering and Geological Sciences
Country of Publication:United States
Language:English
Subject: 01 COAL, LIGNITE, AND PEAT; COAL DEPOSITS; PERMEABILITY; POROSITY; MULTIPHASE FLOW; PROGRESS REPORT; RESERVOIR ENGINEERING; DOCUMENT TYPES; ENGINEERING; FLUID FLOW; GEOLOGIC DEPOSITS; MINERAL RESOURCES; RESOURCES 010600* -- Coal, Lignite, & Peat-- Properties & Composition; 011000 -- Coal, Lignite, & Peat-- Reserves, Geology, & Exploration