Chemistry: analytical and immunological testing – Geochemical – geological – or geothermal exploration – In situ testing
Reexamination Certificate
2003-09-22
2008-09-23
Gakh, Yelena G (Department: 1797)
Chemistry: analytical and immunological testing
Geochemical, geological, or geothermal exploration
In situ testing
C436S164000, C436S165000, C436S166000
Reexamination Certificate
active
07427504
ABSTRACT:
A method for analyzing formation fluid in earth formation surrounding a borehole includes storing analytical reagent in a reagent container in a fluids analyzer in a formation tester and moving the formation tester, including the reagent, downhole. Reagent from the reagent container is injected into formation fluid in the flow-line to make a mixture of formation fluid and reagent. The mixture is moved through a spectral analyzer cell in the fluids analyzer to produce a time-series of optical density measurements at a plurality of wavelengths. A characteristic of formation fluid is determined by spectral analysis of the time-series of optical density measurements.
REFERENCES:
patent: 5246862 (1993-09-01), Grey et al.
patent: 5597042 (1997-01-01), Tubel et al.
patent: 5783740 (1998-07-01), Tawarayama et al.
patent: 6058773 (2000-05-01), Zimmerman et al.
patent: 6176323 (2001-01-01), Weirich et al.
patent: 6564866 (2003-05-01), Clark et al.
patent: 6588266 (2003-07-01), Tubel et al.
patent: 0461321 (1991-12-01), None
patent: 2362462 (2001-11-01), None
patent: 99/00575 (1999-01-01), None
patent: 01/73424 (2001-10-01), None
Andrews, R. J. et al.Quantifying Contamination Using Color of Crude and Condensate. Oilfield Review, pp. 24-43 (2001).
Bates, R. G.Determination of pH: Theory and Practice. Chapter 6, pp. 131-165 (1964).
Ruzicka, J. et al.Flow Injection Analysis. Chapter 1, pp. 1-9 (1981).
Vogel, A. I.A Text-Book of Quantitative Inorganic Analysis. 3rd Ed., Chapters 10-12, pp. 782-853 (1961).
Ayan et al., “Characterizing Permeability With Formation Testers”, Oilfield Review—Autumn 2001, vol. 13, No. 3.
Gustavson Gale
Harrigan Edward
Mullins Oliver C.
Rabbito Philip
Raghuraman Bhavani
DeStefanis Esq. Jody Lynn
Gakh Yelena G
Loccisano, Esq. Vincent
McAleenan, Esq. James
Schlumber Technology Corporation
LandOfFree
Determining fluid chemistry of formation fluid by downhole... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Determining fluid chemistry of formation fluid by downhole..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Determining fluid chemistry of formation fluid by downhole... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3976129