Electricity: measuring and testing – Of subsurface core sample
Reexamination Certificate
2008-01-15
2008-01-15
Williams, Hezron (Department: 2856)
Electricity: measuring and testing
Of subsurface core sample
C073S038000
Reexamination Certificate
active
10554598
ABSTRACT:
Method and device for determining the formation factor of underground zones from drill cuttings. The device comprises a cell (1) associated with a device for measuring the electrical conductivity of the cell with the content thereof. The cell containing the drill cuttings is filled with a first electrolyte solution (A) of known conductivity (σA). After saturation of the drill cuttings by first solution (A), the global electrical conductivity (σ*A) of the cell with the content thereof is determined. After discharging first solution (A), the cell containing the drill cuttings is filled with a second electrolyte solution (B) of known conductivity (σB), and the global electrical conductivity (σ*B) of the cell containing the second solution and the cuttings saturated with the first solution is determined. The cuttings formation factor (FF) is deduced therefrom by combination of the measurements.
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Behot Joêlle
Egermann Patrick
Lenormand Roland
Antonelli, Terry Stout & Kraus, LLP.
Fitzgerald John
Institut Francais du Pe'trole
Williams Hezron
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