Measuring and testing – Borehole or drilling – Downhole test
Patent
1992-06-22
1993-12-28
Warden, Robert J.
Measuring and testing
Borehole or drilling
Downhole test
166250, E21B 4700
Patent
active
052729168
ABSTRACT:
Methods of detecting and measuring in-situ elastic anisotropy in a subterranean rock formation penetrated by a well bore are provided. The methods basically include exerting pressure on the formation by way of the well bore, and measuring the incremental diametral displacements of the well bore at a location therein adjacent the formation as the pressure on the formation is increased. The magnitudes of the diametral displacements are compared to detect and measure elastic anisotropy in the formation.
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SPE 16526, "Modeling of the Stability of Highly Inclined Boreholes in Anisotropic Rock Formations"; Bernt S. Aadnoy, p. 263, SPE Drilling Engineering, Sep., 1988.
Blauch Matthew E.
Heemstra Timothy R.
Venditto James J.
Dougherty, Jr. C. Clark
Halliburton Company
Kent Robert A.
Thornton Krisanne M.
Warden Robert J.
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