Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Earth science
Reexamination Certificate
2007-12-04
2007-12-04
McElheny, Jr., Donald E (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Earth science
C702S013000
Reexamination Certificate
active
11132545
ABSTRACT:
Methods and systems are provided for downhole analysis of formation fluids by deriving fluid properties and associated uncertainty in the predicted fluid properties based on downhole data, and generating answer products of interest based on differences in the fluid properties. Measured data are used to compute levels of contamination in downhole fluids using an oil-base mud contamination monitoring (OCM) algorithm. Fluid properties are predicted for the fluids and uncertainties in predicted fluid properties are derived. A statistical framework is provided for comparing the fluids to generate, in real-time, robust answer products relating to the formation fluids and reservoirs thereof. Systematic errors in measured data are reduced or eliminated by preferred sampling procedures.
REFERENCES:
patent: 5939717 (1999-08-01), Mullins
patent: 6032101 (2000-02-01), Freedman et al.
patent: 6274865 (2001-08-01), Schroer et al.
patent: 6343507 (2002-02-01), Felling et al.
patent: 6350986 (2002-02-01), Mullins et al.
patent: 6476384 (2002-11-01), Mullins et al.
patent: 6768105 (2004-07-01), Mullins et al.
patent: 6826486 (2004-11-01), Malinverno
patent: 6956204 (2005-10-01), Dong et al.
patent: 2004/0158406 (2004-08-01), Harrison
Mullins, et al., “Real-Time Quantification of OMB Filtrate Contamination During Openhole Wireline Sampling by Optical Spectroscopy”, SPWLA 41st Annual Logging Symposium, Jun. 2000, pp. 1-15.
Dong, et al., “Advances In Downhole Contamination Monitoring and GOR Measurement of Formation Fluid Samples”, SPWLA 44th Annual Logging Symposium, 2003, pp. 1-12.
Fujisawa, et al., “Large Hydrocarbon Compositional Gradient Revealed by In-Situ Optical Spectroscopy”, SPE89704, SPE Annual Technical Conference and Exhibition, 2004, pp. 1-6.
Betancourt et al., “Exploration Applications of Downhole Measurement of Crude Oil Composition and Fluorescence”. SPE 87011, SPE Annual Technical Conference and Exhibition, 2004, pp. 1-10.
Mullins, et al., “Compartment Identification by Downhole Fluid Analysis”, SPE, 2004, pp. 1-12.
Carnegie Andrew
Dong Chengli
Fujisawa Go
Hsu Kai
Mullins Oliver
DeStefanis Jody Lynn
Loccisano Vincent
McElheny, Jr. Donald E
Schlumberger Technology Corporation
Singh Karan
LandOfFree
System and methods of deriving fluid properties of 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 System and methods of deriving fluid properties of downhole..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and methods of deriving fluid properties of downhole... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3827650