Method and apparatus for differentiating low porosity limestones

Details Method and apparatus for differentiating low porosity limestones Method and apparatus for differentiating low porosity limestones

1985-12-23

1988-05-24

Howell, Janice A.

Radiant energy

Coded record and readers; invisible radiant energy type

250262, G01V 510

Patent

active

047468017

ABSTRACT:
By taking the ratio of silicon to calcium pulsed neutron capture gamma radiations together with a formation capture cross section measurement, in formations (20) having low hydrogen index, a measurement indicator is provided for differentiating low porosity limestones from high porosity gas sands.

REFERENCES:
patent: 4135087 (1979-01-01), Oliver et al.
patent: 4424444 (1984-01-01), Smith, Jr. et al.
patent: 4587424 (1986-05-01), Grau

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