Method and system for statistical pressure gradient and...

Details Method and system for statistical pressure gradient and... Method and system for statistical pressure gradient and...

2006-06-13

2008-10-28

Barlow, Jr., John E. (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Earth science

C702S138000

Reexamination Certificate

active

07444242

ABSTRACT:
A method and system for statistical pressure gradient and fluid contact analysis. The method and system include planning for a pressure gradient test by using expected parameters and statistical expected error analysis to set the actual pressure gradient test parameters within an acceptable range of reliability. The method and system may account for one or more fluids within a formation and may also perform fluid contact analysis as part of planning the overall pressure gradient test. The method and system also include performing the planned pressure gradient test and comparing the measured data and statistical measured data error analysis with statistical expected error analysis of the measured data. The method and system may also include the graphical display of both the expected and measured data to optimize the pressure gradient analysis and the pressure gradient test procedure.

REFERENCES:
patent: 5128866 (1992-07-01), Weakley
patent: 7044237 (2006-05-01), Leuchtenberg
Kabir, C.S., et al.; “How Reliable is Fluid Gradient in Gas/Condensate Reservoirs?;” Gas Technology Symposium; May 14-17, 2006; pp. 1-15; SPE 99386; Society of Petroleum Engineers; Calgary, Alberta, Canada.
Stewart, G., et al.; “The Interpretation of Vertical Pressure Gradients Measured at Observation Wells in Developed Reservoirs;” 57th Annual Fall Technical Conference and Exhibition of the Society of Petroleum Engineers of AIME; Sep. 26-29, 1982; pp. 1-12; SPE 11132; Society of Petroleum Engineers; New Orleans, Louisiana, USA.
Kapuria, R.; “Pressure Gradient Interpretation;” Halliburton Formation Testing Training Class; Jan. 2004; USA.

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