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STANDARD HANDBOOK OF PETROLEUM & NATURAL GAS ...

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MWD and LWD 981<br />

Figure 4-276. Comparison of the compensated dual-resistivity log resistivities<br />

run while drilling to the invaded and noninvaded resistivities calculated with<br />

wireline phasor induction data. The spurt loss is the ratio RpS/Rad. (Courtesy<br />

Anadrill [113].)<br />

A<br />

N TURNS<br />

I<br />

Figure 4-277. Toroid mounted on a drill collar. (Courtesy SPWLA [115].)

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