Induction log analysis of thinly laminated sand/shale formation
- Shell Development Co., Houston, TX (United States)
The author examines induction log responses to a thinly laminated sand/shale sequence in a deviated borehole for arbitrary deviation (or dip) angle and sand/shale composition. He found that the induction log responses in a thinly laminated sand/shale sequence are the same as they would be if the tool is placed in a homogeneous but anisotropic formation with the horizontal and vertical conductivities given respectively by the parallel and the series conductivities of the sequence. Conversely, a thinly laminated sand/shale sequence can be identified as an anisotropic formation by induction logs. He discusses three methods to identify an anisotropic formation using induction-type logs alone.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 64473
- Journal Information:
- SPE Formation Evaluation, Journal Name: SPE Formation Evaluation Journal Issue: 2 Vol. 10; ISSN 0885-923X; ISSN SFEVEG
- Country of Publication:
- United States
- Language:
- English
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