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- W2045702530 abstract "Abstract A new 2 MHz resistivity tool for logging-while-drilling (LWD) in slim holes has been developed and field-tested. The Slim Compensated Wave Resistivity* (SCWR*) provides four formation-evaluation resistivity measurements in all mud types and in boreholes as small as 5-7/8 inches. Dual transmitter-receiver spacings measuring both phase and attenuation produce four resistivities, sufficient to determine formation resistivity and evaluate invasion. Since many slim holes are drilled in lower-porosity reservoirs, where pay-zone resistivities are often higher than 20 ohm-m, the SCWR tool was designed to provide improved measurement accuracy at these higher resistivities. Similarly, slim holes tend to be hotter than larger boreholes, and the symmetrical design of the SCWR antenna array provides excellent temperature stability. Finally, slim holes are often associated with medium-radius drilling, so the SCWR tool was designed to operate reliably in wells with bends as great as 19°/100ft (rotating) or 36°/100ft (sliding). Field tests have been conducted in a wide range of formation types and drilling conditions. These tests have been used to refine the mechanical design and antenna array, and have confirmed both measurement quality and reliability. This paper describes the features and capabilities of the SCWR tool, and presents several log examples from the field tests." @default.
- W2045702530 created "2016-06-24" @default.
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- W2045702530 date "1995-10-22" @default.
- W2045702530 modified "2023-09-25" @default.
- W2045702530 title "Field Tests of a New 2 MHz Resistivity Tool for Slimhole Formation-Evaluation While Drilling" @default.
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- W2045702530 doi "https://doi.org/10.2118/30548-ms" @default.
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