Boots – shoes – and leggings
Patent
1991-06-27
1993-11-23
Hayes, Gail O.
Boots, shoes, and leggings
73155, G06F 1520, E21B 4700
Patent
active
052650154
ABSTRACT:
Fluid flow measurements are made in situ using a repeat formation tester with a modified probe aperture, or on rock samples using a mini-permeameter with a modified probe aperture. The modified probe aperture has an elongate cross-section, such as elliptic or rectangular. A first flow measurement is made with the longer dimension of the probe aperture in a first orientation (e.g., horizontal or vertical) with respect to the formation bedding planes. A second flow measurement is made with the probe aperture orthogonal to the first orientation, or with a probe aperture of non-elongate (e.g., circular) cross-section. Simultaneous equations relating values of known and measured quantities are solved to obtain estimates of local horizontal and/or vertical formation permeability.
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Auzerais Francois M.
Dussan V. Elizabeth B.
Foodman Marc D.
Hayes Gail O.
Pojunas Leonard W.
Riter Bruce D.
Schlumberger Technology Corporation
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