Ultraviolet emitting scintillators for oil detection

Details Ultraviolet emitting scintillators for oil detection Ultraviolet emitting scintillators for oil detection

2006-03-28

2006-03-28

Hannaher, Constantine (Department: 2878)

Radiant energy

Geological testing or irradiation

Well testing apparatus and methods

Reexamination Certificate

active

07019284

ABSTRACT:
A system for use in oil drilling applications includes a scintillator material having a cubic garnet host and praseodymium distributed within the host. The scintillator material emits ultraviolet radiation in response to stimulating gamma ray radiation. A radiation detector optically coupled to the scintillator detects the emitted ultraviolet radiation. In a method for detecting oil, a radiation detector is optically coupled to a scintillator material having a cubic garnet host and praseodymium distributed within the host, wherein the praseodymium acts as an activator, and wherein the scintillator material emits ultraviolet radiation in response to stimulating gamma ray radiation. The detector and the scintillator material are lowered below the surface of the earth, and ultraviolet radiation emitted by the scintillator material in response to stimulating gamma ray radiation reflected by hydrogen bearing compounds indicating the presence of oil is detected by the detector.

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