... et al., 2010). The ultradeep EM LWD are established technologies comprising a combination of transmitter and receiver subs distributed along the bottomhole assembly (BHA) that allows for multispacing and multifrequency 3D EM measurements. These systems utilize four fundamental types of ultradeep EM...

... of orthogonal transmitting and receiving antennas with a spacing of 1m. A negative step pulse is applied in the transmitting antennas, and the receiving antennas measure the induced electromotive force (EMF) over time. The time-domain logging response contains rich formation information, which can be used...

... to seek conductivity contrasts within the formations surrounding the wellbore. The initial RMWD system implementation comprises one transmitter and up to three independent multifrequency receiver modules positioned along the bottomhole assembly (BHA). These are strategically placed among other logging...

... and the receiver as 1.4 m could reach 25 m by referring to the coaxial components. In addition, the depth of detection of the tool could reach 30 m, when the length between the tool transmitter and the receiver increases to 2.8m. INTRODUCTION In recent years, the longing-while-drilling (LWD) technology has...

... frequency permeability receiver eccentricity conductivity ABSTRACT Well completions typically encompass a series of multiple barriers which are crucial for supporting both production activities and protecting aquifers from contaminants. Monitoring the integrity of these completions is pivotal...

.... The remaining energy penetrates the casing, inducing resonances within it. Subsequently, a portion of this energy leaks into the borehole fluid and is then received by the transducer after undergoing multiple reflections inside the casing. Consequently, the amplitude of the waveform's tail observed...

... monitoring spectrum spwla 64 xx77 packer university frequency spectrum receiver completion installation and operations well logging reservoir characterization leak acoustic anomaly investigation ABSTRACT Well integrity is the obvious condition for safe and reliable well operations...

...-monotonic relation results in non-uniqueness of solutions ( Kinoshita et al., 2013 ). upstream oil & gas lwd log analysis casing and cementing appatt asia government well logging united states government logging while drilling drilling data acquisition receiver correlation coefficient...

... petrophysics inversion well logging reservoir characterization spwla 64 receiver rabinovich europe government log analysis trajectory spwla-2023-0070 druskin fv grid th annual logging symposium grid frequency benchmark SPWLA 64th Annual Logging Symposium, June 10-14, 2023 DOI: 10.30632/SPWLA...

... ABSTRACT In order to develop geosteering tools that use coil antennas as transmitters and receivers, the spacing between the transmitter and receiver must be increased to detect formation boundaries far from the well trajectory, resulting in some tools reaching 100 feet in size. To overcome...

... services. These tools are usually more compact than open hole acoustic logging tools and often not subject to the deployment challenges associated with open hole tools. CBL tools record full waveform data from two closely spaced receivers (or transmitters), traditionally located 3ft and 5ft from...

... Abstract In typical downhole-acquired microseismic monitoring surveys, three-component (3C) sensor arrays are generally wireline conveyed, offering between five to around one hundred sensors often evenly spaced over a specific interval. Those 3C sensors are point receivers that typically...

... receivers in the well, the DAS serves as a fast alternative to a conventional geophone array. Like conventional multicomponent VSP velocity measurements, DAS VSP data contain information about the subsurface properties that are encoded in seismic events and attributes such as compressional and shear direct...

.... It is also possible to reconstruct these formation layers from the measurements made by a shallower resistivity measurement tool operating at higher frequencies with a shorter transmitter-receiver spacing. Numerical examples will be presented to demonstrate the effectiveness of the proposed ranging...

... oil & gas annual logging symposium application wellbore lithology saudi arabia shale zone resistivity tool differentiation receiver inversion rd annual logging symposium structural geology spwla-2022-0052 spwla 63 resistivity anisotropy SPWLA 63rd Annual Logging Symposium, June...

... logging drilling operation real time system logging symposium receiver percentile interpretation inversion tvd resistivity rd annual logging symposium annual logging symposium application th annual logging symposium reservoir log analysis directional drilling frequency inversion result...

... reservoir characterization hydraulic fracturing reservoir geomechanics structural geology well logging berea sandstone log analysis ultrasonic reflection coefficient gypsum plaster coefficient reflection coefficient variability receiver amplitude university incidence angle spwla...

... may seem rather different. well logging apparent conductivity nd annual logging symposium ground loop propagation tool eddy current voltage log analysis spwla 62 receiver conductivity transmitter attenuation measurement coupling second-order eddy current resistivity upstream oil...

... transmitter and receiver run the tool in only one of the tubing strings, if the goal arrays operating at multiples frequencies was designed is solely to inspect corrosion in the outer casings. to accurately estimate the individual wall thicknesses of up to five nested pipes. Data acquired from this tool...

... continuity porosity drilling measurement well logging reservoir characterization drilling data acquisition logging while drilling directional drilling fluid dynamics borehole lwd structural geology structural model receiver production monitoring reservoir surveillance reservoir simulation...