...] measures with intervals of highly oil-prone shales, and mostly paralic coal-bearing gas-prone Bashkirian-Moscovian strata. Lower Visean deep-seated black anoxic shales and carbonates are considered as principal source-rocks intervals for the Dnieper-Donets hydrocarbon system formation, however...

... velocity is traditionally done within an isotropic formation within the wellbore, if one can be identified. To address these uncertainties, a new data driven approach was developed to jointly solve for the mud velocity and anisotropic properties using both the Stoneley and flexural (dipole) waveforms...

... of delivery of the final product. An updated data-driven inversion algorithm applied while logging can provide robust shear and compressional slownesses with associated quality control indicators. The updated algorithm has fewer user parameters and is more reliable in layered, stressed, or damaged formations...

.... Neville, Asia-Pacific Formation Evaluation Services Pty Ltd Copyright 2021 held jointly by the Society of Petrophysicists and Well Log technique has therefore been developed using a multiple- Analysts (SPWLA) and the submitting authors. detector density tool. Data from the shorter spacing This paper...

... Abstract Exploration and development drilling in offshore China is extending to Paleogene formations that are characterized by low-resistivity-contrast and low-permeability rocks. These formations have become a focus for increasing reserves and production. During exploration activities...

...  qi = producing rate at time 0, vol/unit time Di = initial nominal decline rate (t = 0), 1/time  b = hyperbolic exponent (some authors use "n")  t = time A standard shaley formation model using a density/neutron cross plot porosity and gamma ray for shale volume was used. Correction...

.... SPWLA 61st Annual Logging Symposium, June 20-24, 2020 1 METHODOLOGY TO MAKE QUANTITATIVE ESTIMATES OF VARIABLE RESERVOIR WETTING PROPERTIES IN UNCONVENTIONAL RESERVOIRS USING TRIPLE-COMBO WELL LOG DATA Holmes, Michael, Holmes, Antony M., Holmes, Dominic I. Digital Formation, Inc. Copyright 2020, held...

... In this case study, the Burgan formation was targeted while drilling a new water-injection well in an onshore location. Burgan is composed primarily of siliclastics and is known to be a challenging formation due to lithofacies variation, lateral heterogeneity, and thickness variation, in addition...

... of 2017 are shown in Figures 1 and 2 . The purpose of this new paper is to look back and review whether the first set of Kvitebjorn production wells drilled and completed with cesium formate fluids in the Brent Group formations during 2004/5 delivered on early promise. The review follows...