Electrofacies identification of lithology and stratigraphic trap, southeast Lost Hills fractured shale pool, Kern County, California

Conference · Mon Apr 01 04:00:00 EST 1985 · Am. Assoc. Pet. Geol., Bull.; (United States)

OSTI ID:5857706

Mulhern, M E; Laing, J E; Senecal, J E; Widdicombe, R E; Isselhardt, C; Bowersox, J R

Subtle facies changes are traced vertically and laterally in the upper Monterey and Reef Ridge formations through application of the Multi-well Faciolog (mark of Schlumberger) technique. Electrofacies, representing intervals of similar log response, are identified in a key well by comparison with mud-log, conventional core, and x-ray diffraction analysis from sidewall cores and are retained in a data base. Five subsequent wells lacking detailed core or x-ray data but with similar log suites (bulk density, neutron porosity, gamma ray, and delta time) were compared to the data base and automatically assigned electrofacies. Twelve electrofacies - including diatomite, porcellanite, chert, dolomite, mudstone, and claystone, plus intermediate members - have been identified at the depth accuracy and resolution of petrophysical logs.

• Research Organization: Schlumberger well Services, Ventura, CA
• OSTI ID: 5857706
• Report Number(s): CONF-8505215-
• Conference Information: Journal Name: Am. Assoc. Pet. Geol., Bull.; (United States) Journal Volume: 69:4
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
CALIFORNIA
COHERENT SCATTERING
DIFFRACTION
FEDERAL REGION IX
GEOLOGIC DEPOSITS
GEOLOGIC FORMATIONS
GEOLOGIC TRAPS
GEOPHYSICAL SURVEYS
MINERAL RESOURCES
NORTH AMERICA
PETROLEUM DEPOSITS
RESERVOIR ROCK
RESOURCES
SCATTERING
SEISMIC SURVEYS
SURVEYS
USA
X-RAY DIFFRACTION