Radiant energy – Geological testing or irradiation – Well testing apparatus and methods
Reexamination Certificate
2005-05-03
2005-05-03
Hannaher, Constantine (Department: 2878)
Radiant energy
Geological testing or irradiation
Well testing apparatus and methods
C250S339130
Reexamination Certificate
active
06888127
ABSTRACT:
Method and apparatus for providing real-time data indicative of the isotopic composition of formation fluids during drilling. The method includes the steps of: (a) providing a reference fluid having a known isotopic composition in a reference cell; (b) capturing a sample of formation; (c) providing at least one laser beam; (e) passing a beam through the reference fluid, measuring the reference-measurement beam before and after it passes through the reference fluid; (f) and passing a beam through the sample, measuring the beam before and after it passes through the sample, and calculating a first isotope concentration from those measurements. The measurements can provide information relating to the carbon isotopic composition of individual compounds in hydrocarbon gas mixtures, with the individual compounds including methane, ethane, propane, iso- or normal butane, or iso- or normal pentane.
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Drozd Richard J.
Jones Christopher
Sofer Zvi
Conley & Rose, P.C.
Halliburton Energy Service,s Inc.
Hannaher Constantine
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