G - Physics – 01 – V
Patent
G - Physics
01
V
G01V 3/10 (2006.01) G01V 3/28 (2006.01)
Patent
CA 2164809
An induction logging sonde is disclosed for detecting the resistive properties of formations traversed by a wellbore. The transmitting and receiving circuitry of the induction sonde comprises triads of orthogonally wound transmitters and receivers that are capable of being driven in such a fashion as to electrically rotate the coils to emulate coils that are either perpendicular or parallel to the bedding planes in a dipping formation. These rotations can be varied at any depth by using the information of the dip and strike angles obtained from a pulsed method of operation of the sonde. Once the dip angle and strike angles are ascertained, the electronic rotation is chosen to orient the coils parallel to the bedding planes, thereby producing logs which are devoid of horns, while at the same time producing regional dip and strike angles. In addition, the electronic rotation is also chosen to orient the coils perpendicular to the bedding planes to measure electrical anisotropy.
Gianzero Stanley C.
Haliburton Company
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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