Density-neutron crossplot analysis for shaly gas sands using hand-carried calculators. [CRPLOT]

Journal Article · Sun Jan 01 04:00:00 EST 1978 · Log Anal.; (United States)

OSTI ID:6545522

Wu, C H; Krug, J

A program for hand-carried calculators has been developed for shaly gas sand crossplot analysis. This program processes data obtained from a log suite consisting of FDC-CNL-GR and a deep-investigation resistivity log, and prints out values for effective porosity, shale content, and water saturation. The program uses an analytical method that describes the shaly-sand crossplot technique. This technique is capable of handling cases where the density porosity at the clay point is either positive or negative. The program executes the crossplot analysis accurately and quickly, taking less than 30 seconds for each data point.

• OSTI ID: 6545522
• Journal Information: Log Anal.; (United States), Journal Name: Log Anal.; (United States) Vol. 19:4; ISSN LGALA
• Country of Publication: United States
• Language: English

Related Subjects

440400* -- Well Logging Instrumentation
47 OTHER INSTRUMENTATION
C CODES
COMPUTER CODES
COMPUTERS
DATA ANALYSIS
ELECTRIC LOGGING
GAMMA LOGGING
GAMMA-GAMMA LOGGING
METAMORPHIC ROCKS
NEUTRON LOGGING
POROSITY
RADIOACTIVITY LOGGING
RESERVOIR ROCK
RESISTIVITY LOGGING
ROCKS
SHALES
WATER SATURATION
WELL LOGGING