About This Item

Share This Item

The AAPG/Datapages Combined Publications Database

CSPG Bulletin

Abstract


Journal of the Alberta Society of Petroleum Geologists
Vol. 4 (1956), No. 4. (April), Pages 79-93

Formation Porosity and Fluid Content from Velocity Logs

E. R. Denton

ABSTRACT

A velocity log may be interpreted to advantage by considering it as a formation elasticity log. Load, lithology, porosity and fluid content are discussed in Previous HitrelationNext Hit to formation elasticity.

An empirical relationship between velocity and porosity has been determined for a limestone and a Previous HitmethodTop is shown whereby porosity, expressed as a percentage, may be read directly from a velocity log.

The detection of hydrocarbons is facilitated by comparing the velocity values of a formation with its resistivity. In general, low velocity accompanied by high resistivity indicates the presence of hydrocarbons. The velocity contrast between oil, gas and water sands is such that fluid contacts may often be located.


Pay-Per-View Purchase Options

The article is available through a document delivery service. Explain these Purchase Options.

Watermarked PDF Document: $14
Open PDF Document: $24