... oil & gas experiment seismic imaging full waveform inversion resolution reflection khz slowness s-wave arrival receiver exploration geophysicist 10 fracture Seismic imaging of a carbonate rock block with fracture-induced anisotropy Rie Nakata (University of Tokyo), Christophe Matonti...

... ABSTRACT Waterborne surveys were conducted using a handheld hammer hitting a rod attached to an aluminum plate with a single channel hydrophone eel. The broadband signal generated by this recording system produces a data set that can be processed in multiple frequency bands such at 0.5 kHz...

.... The spectral processing of individual sferics, excluding periods of background noise between sferic events, allows for the extraction of AFMAG and VLF data in the frequency range 25 Hz–25 kHz, including good signal in the AMT dead band (1–5 kHz). The recording of the three-component AEM data allows...

... interactions to allow for better characterization of cracked reservoirs. Presentation Date: Monday, October 15, 2018 Start Time: 1:50:00 PM Location: 205A (Anaheim Convention Center) Presentation Type: Oral nonlinear interaction malcolm anisotropy memorial university media johnson khz...

... upstream oil & gas acoustic transducer log analysis rikrik 2122 amplitude displacement seg international exposition characteristic up-going wave khz rubber shell References References Caldell , R. , 1983 , Acoustic well logging device for detecting shear and compressional...

... reflection co 2 subsurface storage sequestration transmission measurement khz References References Arts , R. , R. Elsayed , L. van der Meer , O. Eiken , S. Ostmo , A. Chadwick , G. Kirby , and B. Zinszner , 2002 , Estimation of the mass...

... Start Time: 10:45:00 AM Location: 168 Presentation Type: ORAL transmitter rail transportation tte radio signal khz ieee transaction frequency railway upstream oil & gas experiment conductor vital alert metals & mining fdtd ground conductivity ground transportation...

... mode dispersion quadrupole tool reservoir characterization seg seg international exposition leaky-p wave velocity determination fast formation well logging khz log analysis wireline tool s-wave velocity frequency synthetic waveform receiver amplitude array waveform References...

... and a better radiation performance, which provides the most important theoretical foundation for the application of the dipole LWD remote acoustic reflection survey. Presentation Date: Thursday, October 20, 2016 Start Time: 8:30:00 AM Location: 168 Presentation Type: ORAL khz borehole dipole lwd...

..., the interference of the collar wave with the formation flexural and leaky P waves is slight for a dipole tool when collar velocities are large. Then the S velocity can be determined by the flexural formation wave at low frequency (around 2 kHz). Based on these observations, we propose that the measurement of the P...

... the accuracy and reliability of the new rapid simulation approach. Comparison of results to finite-element calculations confirms that efficiency and accuracy of the new approximation. khz screw mode spatial sensitivity function sensitivity function sensitivity axial sensitivity axial sensitivity...

... eliminate the effect of the tool wave on the velocity measurements completely. In this paper we measure the seismoelectric coupling coefficients in sandstone saturated with different NaCl solutions at the frequency range (2-15 kHz) generally used in acoustic well logging. We perform multipole seismoelectric...

... are very useful for geo-steering. khz waveform simulation drilling measurement drilling data acquisition logging while drilling reservoir characterization tool eccentricity receiver different eccentric dipole tool wang eccentricity annual international meeting amplitude eccentric case...

... constant pressure across a fluid filled porous rock. The alternating electric field induced by an acoustic wave propagating through the porous rock is the so called seismoelectric signal. In this paper, we present quantitative AC seismoelectic measurement at high frequencies (10 kHz to 120 kHz) on Berea...

... differences greater than 10%. In general, there was a consistent bias with the LWD values being faster than the wireline values (Briggs et al., 2004). phase velocity borehole shear velocity calculation seg seg denver 2010 log analysis upstream oil & gas khz well logging dispersion curve...

... petrophysicist dip determination layered formation thinly layered formation determination khz log analysis well logging resistivity contrast Apparent Dip Determination from Tri-axial Induction Dip-meter Measurements Terry Hagiwara, Terry Research and Development, Houston, TX Summary The apparent dip...

... conductance international exposition geotem khz reservoir characterization model 4 ground model bandwidth sandstone inversion megatem moenkopi ground electromagnetic data modeling calibration site airborne data adjustment A comparison of airborne and ground electromagnetic data near...

... Summary An extensive high-resolution 2-D seismic survey was collected at Lake Tana in the Ethiopian highlands in support of a regional geological study of the Nile River System. The seismic data was of very high quality, exhibiting a dominant frequency of 5 kHz (20 cm wavelength...

... results (at 800 kHz) to the frequencies used in seismic monitoring (10 - 200 Hz) and sonic logging (10 – 20 kHz). The relatively high attenuations seen in the clayrich sandstones not predicted by the Biot theory were thought to be indicative of a clay-related squirt flow loss mechanism. Squirt flow losses...

... upstream oil & gas discretization truncation log analysis khz nonphysical reflection Simulation of borehole acoustic measurements in axisymmetric media with hp-adaptive nite ele- ments Christian Michler , Leszek Demkowicz, and Carlos Torres-Verd´ n, University of Texas at Austin SUMMARY...