Nuclear imaging probe

Details Nuclear imaging probe Nuclear imaging probe

2006-07-20

2008-10-21

Porta, David P. (Department: 2884)

Radiant energy

Geological testing or irradiation

Well testing apparatus and methods

C073S152020, C073S152050, C073S152060, C073S152140, C250S269100

Reexamination Certificate

active

07439495

ABSTRACT:
A nuclear imaging probe1for measuring the density of a subsurface formation GF in a limited zone surrounding a well-bore hole WBH. The probe comprises: a pad2having a face arranged so as to be positioned in contact with a well-bore wall WBW, at least one radioactive source4arranged within the pad for transmitting incident photons PI towards the well-bore wall, and at least one sensor5spaced away from the radioactive source and isolated from the radioactive source by a shield6arranged into the pad for receiving photons scattered PS by the limited zone.

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patent: 5723781 (1998-03-01), Pruett et al.
patent: 0379813 (1995-01-01), None
patent: 0860715 (2006-06-01), None
Knoll, G, Radiation Detection and Measurement, 2000, John Wiley & Sons, Inc., XP002366233, pp. 488-489.

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