1964 Paper L

CASE HISTORIES: HYDROCARBON LOCATION FROM ACOUSTIC PARAMETER LOGS

by

David M. Muir and Lloyd Fons, Pan Geo Atlas Corporation

ABSTRACT

Acoustic Parameter Logs provide a relatively simple method for the direct location of hydrocarbons. Variables which often cause major problems in electrical and radioactivity analyses, such as resistivity of connate water, conductive solids, disseminated shale, chemically combined water, and critical water saturations, are eliminated. Even the rock type itself appears to have but minor effect on the acoustic interpretations, as demonstrated by examples included in this paper.

Several hundred field observations of the relationships between hydrocarbon-bearing rocks and acoustic wave-train parameters have been made. These observations include limestone, sandstone, conglomerate, and shale reservoirs.

Examples and case histories (with explanations) of direct location of hydrocarbons in both limestone and sandstone are presented.