... logging is less sensitive to the salinity of the formation water, low porosity will reduce the resolution of the C/O response envelope (Ma, et al., 2021). In addition, energy spectrum processing is a kind of complicated and challenging work, the interpretation results are always related to spectral data...

... ABSTRACT High-resolution borehole images are pivotal in delineating the depositional and diagenetic intricacies within Brazil's presalt carbonate reservoirs, which is essential for fluid flow characterization. These images, acquired through both logging-while-drilling (LWD) and wireline...

... decade, deep-sensing borehole tri-axial EM measurements have been increasingly utilized in commercial applications. These technological advancements aim to increase the range of the radial and azimuthal sensitivity and resolution for detecting electrically conductive rocks around the well trajectory...

... carbonate rock geologist structural geology inversion drilling data acquisition rock type log analysis logging while drilling drilling measurement sedimentary rock lwd well logging reservoir characterization th annual logging symposium investigation resolution wellbore...

..., and the assumptions not always satisfied, the uncertainty attached to the results is high. This uncertainty is even higher in thin-layered reservoirs characterized by bed thicknesses well below the resolution capabilities of standard logging tools. In this respect, the paper deals with a novel physics-based...

.... The most crucial step in this work is the grid refinement (x,y) to a meaningful value that is less than the DOD of planned UDAR configuration while preserving the vertical resolution (z). The grid refinement can either be local (around the wellbore) or regional. If the grid is refined from an already built...

.... The observed resolution is on the order of two centimeters. Later, we integrate resistivity and dielectric permittivity measurements with other petrophysical parameters from the core analysis to refine the formation evaluation results. We combine the resistivity and dielectric permittivity with lithology...

... detection distances of 10 cm and 1 mm image inversion resolution were achieved. log analysis imaging equation of state detector th annual logging symposium modeling & simulation compton absorption coefficient resolution spwla 65 china university x-ray imaging aperture matrix detector...

... acquisition strategies of acoustic image datasets were devised based on optimized ratios of drill pipe rotation speed (RPM) and rate of penetration (ROP) to maximize image resolution using either mud motors or rotary steerable systems in lateral wellbores. Ultrasonic amplitudes and travel times were binned...

... to microstructural attributes of the given sample, a multiscale workflow was used. First, the sample was imaged using Micro-CT at a resolution of 13 microns/pixel. To capture mineralogy and pore/matrix features below the image resolution of the micro-CT, a thin section was cut and scanned using optical microscopy...

... circulation gauge resolution reservoir surveillance sequence misinterpretation resolution wellbore ABSTRACT Pressure transient testing with formation tester tools has been performed for decades but has been historically constrained to formations of limited thickness and permeability...

... and conventional petrophysical models. We preprocess core data acquired in key wells that incorporate expert knowledge, depth-matched core porosity with log-calculated porosity, generated two support systems (core and log resolution), and trained with the predicted porosity and smoothed permeability. Feature...

... the mechanical behavior and ultimate failure of the samples. A multiscale workflow has been used. The samples were initially imaged using a Micro-CT to reconstruct pore/grain geometries. Additionally, thin sections were imaged to obtain mineralogy and capture pore/matrix features below the image resolution...

... gamma spectroscopy, can be estimated to determine mineral composition for complex reservoir evaluation. However, in field tests, extracting the net inelastic energy spectra is challenging due to environmental diversity, and the energy resolution of the spectra can be unstable, reducing the accuracy...

...SPWLA 64th Annual Logging Symposium, June 10-14, 2023 DOI: 10.30632/SPWLA-2023-0122 FIELD TESTING OF A PROPAGATION AT-BIT RESISTIVITY TOOL Tsili Wang, Well Resolutions Technology, Inc. Copyright 2023, held jointly by the Society of Petrophysicists and Well Log Analysts (SPWLA) and the submitting...

... geologist lwd saudi arabia government asia government logging while drilling geology suriname government upstream oil & gas correction drilling data acquisition porosity nmr porosity carbonate marie van steene log analysis real time system spwla-2023-0099 resolution enable...

... symposium porosity detector dry-weight fraction spectroscopy detector fraction artificial intelligence drilling measurement th annual logging symposium gamma ray neutron stoller norway government drilling data acquisition background university spectroscopy contribution spectra resolution...

... wireline runs in two field trial wells. On the first well, tool problems unrelated to the novel bullet design resulted in core recovery which was lower than expected. Modifications were applied and very high core recovery was achieved on the second well. High-resolution X-ray micro-computed tomography...

... array induction signals based on it s specification of these chosen coils, comparing the modeled signals with the corrected signals, adjusting the model and repeating the comparison until the best fit to get the equivalent conductivity logs. (4) Finally, the resolution matching algorithm, which...

... of structural dip angles. A high-resolution caliper image visualizes complex geometry around the borehole to provide valuable inputs for well stability assessment, fracture mapping, and bedding analysis. A new multi-physics logging-while-drilling (LWD) tool introduced here integrates all these critical...