Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Earth science
Reexamination Certificate
2007-02-06
2007-02-06
McElheny, Jr., Donald (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Earth science
C702S013000
Reexamination Certificate
active
10952136
ABSTRACT:
The present invention is a method of interpreting sampled mud gas compositional and isotopic data from a target area in a drilling operation. The compositional and isotopic data is plotted on a chart. The chart preferably illustrates methane compositional data together with isotopic composition, such as δ13C1. From this chart, mixing lines are determined. The mixing lines are determined by finding data points plotted on the chart which approximate a straight line or other trend. The mixing lines are then analyzed to determine reservoir isotopic signature, hydrocarbon communication and any interference to this communication within the target area.
REFERENCES:
patent: 3033287 (1962-05-01), Bond
patent: 5388456 (1995-02-01), Kettel
Diaz Michael
McElheny Jr. Donald
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