Enhanced downhole fluid analysis

Details Enhanced downhole fluid analysis Enhanced downhole fluid analysis

2006-12-19

2009-12-29

Williams, Hezron (Department: 2856)

Measuring and testing

Borehole or drilling

Downhole test

C073S863000, C250S255000

Reexamination Certificate

active

07637151

ABSTRACT:
The operation, analysis and interpretation of a chromatographic system can be significantly enhanced by coupling therewith one or more fluid property measurements that provides an initial indication of the fluid type, the presence of any contamination, an estimate of the hydrocarbon composition (C1, C2-C5 and C6+), gas/oil ratio, color and/or fluorescence measurements. Other measurements that can be used in the initial stage can include density, viscosity, phase transition determinations. These measurements may be used to enhance, in real-time, the GC sampling protocol, the analysis protocol and also improve the robustness of the interpretation of the chromatogram.

REFERENCES:
patent: 4739654 (1988-04-01), Pilkington et al.
patent: 5859430 (1999-01-01), Mullins et al.
patent: 5939717 (1999-08-01), Mullins
patent: 6670605 (2003-12-01), Storm et al.
patent: 7231819 (2007-06-01), Jones et al.
patent: 7435597 (2008-10-01), Mango
patent: 2004/0045350 (2004-03-01), Jones et al.
patent: 2006/0106993 (2006-05-01), Khare et al.
patent: 0508595 (1992-10-01), None
patent: 1862781 (2006-05-01), None
patent: 1686238 (2006-08-01), None
patent: 0173424 (2001-10-01), None
patent: 2002/077613 (2002-10-01), None
patent: 2006/094694 (2006-09-01), None
Andrews et al., “Quantifying Contamination Using Color of Crude and Condensate”, Oilfield Review, Autumn 2001, pp. 24-43.
Betancourt et al., “Analyzing Hydrocarbons in the Borehole”, Oilfield Review, Autumn 2003, pp. 54-61.
Betancourt et al., “Exploration Applications of Downhole Measurement of Crude Oil Composition and Fluorescence”, SPE 87011, 2004.
Ahmed, “Comparative Study of Eight Equations of State for Predicting Hydrocarbon Volumetric Phase Behavior”, SPE 15673 Reservoir Engineering, Feb. 1988, pp. 337-348.
Lo et al., “Mixing Rules and Correlations of NMR Relaxation Time with Viscosity, Diffusivity, and Gas/Oil Ratio of Methane/Hydrocarbon Mixtures”, Mar. 2002 SPE 77264 Journal, pp. 24-34.
Fujisawa et al., “Large Hydrocarbon Compositional Gradient Revealed by In-Situ Optical Spectroscopy”, SPE 89704, 2004.
ASTM International, “Standard Test Method for Determination of Boiling Range Distribution of Crude Petroleum by Gas Chromatography”, Designation: D 5307-97 (Reapproved 2002).
ASTM International, “Standard Test Method for Analysis of Petroleum Waxes by Gas Chromatography”, Designation: D 5442-93 (Reapproved 2003).

Affiliated with

Also associated with

Rating

Enhanced downhole fluid analysis does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Enhanced downhole fluid analysis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Enhanced downhole fluid analysis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4128146