Wells – With electrical means
Patent
1998-01-23
2000-08-15
Schoeppel, Roger
Wells
With electrical means
16625016, E21B 4300
Patent
active
061021156
ABSTRACT:
This disclosure sets out an induction logging tool enclosed in a cylindrical shell between top and bottom located end connected subs of larger diameter. The ends are larger; they define a standoff distance above a specified minimum to enable operation in a well borehole without centralizers.
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patent: 4651101 (1987-03-01), Barber et al.
patent: 4873488 (1989-10-01), Barber et al.
patent: 5668475 (1997-09-01), Orban et al.
Hazen Gary A.
Mathison, Jr. R. David
Thomas Stanley R.
Walulik James Joseph
Jeffery Brigitte L.
Ryberg John J.
Schlumberger Technology Corporation
Schoeppel Roger
Segura Victor H.
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