...% is seen in Rv of three thin resistive beds at the bottom. Comparatively, the discrepancy of Rh is mostly less than 10% except for the 1-ft bed at the bottom. When dip is 20°, the largest discrepancies for Rh and Rv can be as large as 30% and 50% for the same three thin beds. For the 30° dip...

..., and 3-I) hybrid method codes. Using the 3-D FEM codes, dual laterolog responses in highly deviated wells, horizontal wells, dipping anisotropic formations, and fractured carbonate formations are studied. For a laterolog tool in a formation consisting of a resistive bed between two conductive shoulder...

..., the apparent resistivity seen by the ring increases, generating a spike or a horn on the log. Figure 2.6 shows the single transmitter ring resistivity response to a series of thin resistive beds. The response in resistive beds is much better than the response in conductive beds. Note that the resistivity...

... ABSTRACT The responses of the 6FF40 deep induction in thin, resistive beds are significantly improved through the use of derivatives applied to the deconvolved deep induction signal. The resultant, enhanced measurement has sharper, more accurate bed boundaries and a value for Rt...

... located with 1 ft of the borehole wall. This conclusion can be applied in interpreting small anomalies on induction logs in general. In extremely resistive beds, induction logs recorded prior to the use of modern signal processing methods such as Phasor* processing are difficult to interpret because...

... modeling resistive formation Laterolog Symposium Upstream Oil & Gas resistive bed borehole tool response well logging shallow laterolog dip angle computed log bed boundary foot bed dual laterolog resistivity sonde SPWLA Twenty-Ninth Annual Logging Symposium, June 5-8, 1988 THE DUAL...

... formations, a thin bed for induction can be 50 feet or more. Errors in interpretation caused by failing to recognise extreme shoulder effect in resistive beds can lead to underestimating the amount of hydrocarbons present in a reservoir. A more precise understanding of the severity of shoulder effect baaed...

... Thickness apparent thickness conductivity resistivity curve Upstream Oil & Gas true thickness correction chart dip angle well logging true resistivity resistivity reading Symposium log analysis Induction log induction sonde apparent resistivity resistive bed bed boundary...

.... well logging resistive bed sfl response bed thickness correction chart current pattern interpretation sfl bed thickness correction chart shoulder effect Upstream Oil & Gas boundary condition Symposium resistivity equation log analysis induction field log conductive bed sfl log...