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An Experimental Study Of Seismoelectric Signals In Logging While Drilling
(Massachusetts Institute of Technology. Earth Resources Laboratory, 2005)
Acoustic logging while drilling (LWD) may be complicated because of contamination by waves propagating along the drill collar (the tool waves). In this paper we propose a new method for separating tool waves from the true ...
Higher Order Modes in Acoustic Logging While Drilling
(Massachusetts Institute of Technology. Earth Resources Laboratory, 2005)
In multipole acoustic logging while drilling (LWD), the fundamental modes dominate recorded waveforms. Higher order modes may also appear and complicate the processing of LWD data. In dipole LWD measurements, the dipole ...
Elimination of LWD (Logging-While-Drilling) Tool Modes Using Seismoelectric Data
(Massachusetts Institute of Technology. Earth Resources Laboratory, 2006)
Borehole acoustic logging-while-drilling (LWD) for formation evaluation has become an indispensable part of hydrocarbon reservoir assessment (Tang et al., 2002; Cittá et al., 2004; Esmersoy et al., 2005). However, the ...
Experimental Studies of Multipole Acoustic Logging with Scaled Borehole Models
(Massachusetts Institute of Technology. Earth Resources Laboratory, 2004)
A scaled multipole acoustic tool is built for laboratory measurements at ultrasonic frequencies in borehole models. The source with four separate transducers generate monopole, dipole, and quadrupole waves by different ...