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

Technical Report · Sun May 01 00:00:00 EDT 1994

OSTI ID:6998332

Pyrak-Nolte, L J

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.

• Research Organization: Notre Dame Univ., IN (United States). Dept. of Civil Engineering and Geological Sciences
• OSTI ID: 6998332
• Report Number(s): PB-94-203445/XAB; CNN: GRI-5092-260-2507
• Resource Relation: Other Information: Color illustrations reproduced in black and white
• Country of Publication: United States
• Language: English

Related Subjects

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