METHOD OF ESTIMATING PHYSICAL PARAMETERS OF A GEOLOGICAL FORMATION

METHOD OF ESTIMATING PHYSICAL PARAMETERS OF A GEOLOGICAL FORMATION

A well passing through a geological formation is fitted with a tube, open at its bottom end, that is filled with a fluid. Another fluid is in the annular space between the tube and the wall of the well, the two fluids exhibiting an interface situated in the annular space. A hydraulic balance of the...

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Bibliographische Detailangaben
Hauptverfasser: BOUTAUD DE LA COMBE JEAN-LUC, BROUARD BENOIT, BEREST PIERRE, JACQUES ANTOINE
Format: Patent
Sprache:eng
Schlagworte:
ANALOGUE COMPUTERS
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:A well passing through a geological formation is fitted with a tube, open at its bottom end, that is filled with a fluid. Another fluid is in the annular space between the tube and the wall of the well, the two fluids exhibiting an interface situated in the annular space. A hydraulic balance of the fluids of the well is disturbed and the trend of certain quantities is measured. These measurements are moreover simulated by computer by using different sets of values for the physical parameters, and efforts are made to estimate the geological formation. A comparison of the measurements with the simulation results makes it possible to identify an optimum set of values for the parameters.