Portable gamma apparatus for core analysis and method therefor
AssigneeCore Laboratories, I.P., Inc.
InventorTheodore Joseph Griffin, Jr.
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Abstract
An apparatus and method for a wellsite γ-ray analysis of core samples is implemented. A wheeled carriage supporting a γ-ray detector stably straddles a core sample, which may be encased in a core barrel. A bracket attached to the carriage may hold a radionuclide source of γ radiation positioned distally from the detector, thereby forming a space therebetween for passage of the core. The density of the core may be determined by counting the γ flux attenuated by the core; by traversing the carriage along a length of the core, the density may be determined as a function of position, and disrupted core or partial recovery detected thereby. Additionally, the natural γ emission of the core may be observed by traversing the apparatus along the core without the radionuclide source.
Claims27
An apparatus for core analysis comprising:
- a carriage operable for supporting a γ-ray detector, wherein said carriage is operable for straddling said core and stably traversing a length thereof;
- and
- a support attached to said carriage operable for mounting a γ-ray source distally of said detector and forming a space therebetween operable for passage of said core.
A method of core analysis comprising the steps of:
- providing a γ-ray analysis apparatus stably straddling said core;
- and
- detecting natural γ activity from said core.
A method of core analysis comprising the steps of:
- providing a γ-ray analysis apparatus stably straddling said core;
- and detecting γ-rays emitted from a radionuclide source and passing from said source through said core.
Dependencies are inferred from the claim text.