... Abstract Porosity is key to understanding reservoir potential for hydrocarbons. The main methods of acquiring porosity data are through wireline logging or detailed laboratory measurements. Although informative, these operations are restricted by their economic and operational costs. Machine...

...) tools provide Neutron Capture Cross Section in Sigma mode and C/O ratio. However, the neutron porosity log is also part of the output, which is often ignored. Theoretically, these measurements are sufficient to determine porosity and saturation for simple cases at favorable conditions. The solution...

... inorganic pores are hydrophilic. Tortuosity The organic shale porosity evolves in organic matter and in the matrix, with thermal maturity. Even with increasing porosity development in organic matter, porosity primarily decreases with increasing burial and thermal maturity. These physical changes can...

... the time to achieve history match. fluid dynamics sedimentary rock upstream oil & gas united states government resistivity petroleum geology clastic rock rock type geologist asia government modeling & simulation geological subdiscipline permeability porosity inversion petroleum...

... Abstract The evaluation of fractured low-porosity, low-salinity reservoirs has always posed different exploration and production challenges. Resistivity based models for determining saturation have significant uncertainties due to poor hydrocarbon-water resistivity contrast further exacerbated...

... Abstract Bioturbation is the disturbance of sediment layers by biological activity and is a significant process in deltaic environment. Bioturbation is an important source of reservoir heterogeneity and has an impact on rock properties such as porosity and permeability and their distribution...

... information saturation reservoir characterization inversion geology lwd log analysis real time system ohmm resistivity stacked channel reservoir architecture scenario completion optimization development geologist porosity udar mathematical reservoir modeling equation lobe calculation...

... Abstract The performance of shale-gas wells varies significantly from well to well, and free-gas volume dominates the initial testing production of shale-gas wells. The uncertainties in pore-pressure estimation will lower the accuracy in quantifying the free-gas-filled porosity of shale-gas...

... characterization porosity workflow hydrocarbon methodological recommendation asia government rock type core analysis bazhenov formation kalmykov interpretation clastic rock complex reservoir shale gas maturity wettability moscow reservoir characterization extraction lithotype advanced...

... Abstract In this study, we introduce a method to directly invert for porosity, Vclay and hydrocarbon saturation (Shc) simultaneously from pre-stack seismic data using deep learning approach. We implemented L1 norm in the loss function for Shc estimation, added noise into synthetic seismic...

... & gas sedimentology geologist malaysia government artificial intelligence machine learning module depositional environment ermai depositional environment permeability database rmse machine learning application evaluation uae government permeability porosity algorithm dataset...

... of quartz, feldspars, low clay content and porosities in the 15% range. Conventional induction logs response exhibits low resistivity (below 10 ohm.m), meanwhile advanced triaxial induction confirms that electrical properties are mostly isotropic. Consequently, despite hydrocarbons being shown while...

... on porosity and permeability, implying that Vclay is a preferred parameter to accurately estimate reservoir quality. Furthermore, Vclay is a quantitative core measurement allowing for a robust core-log calibration, supported by other parameters. This paper will investigate the key assumption of the TS model...

... This study evaluates how sample modification promotes ultrasonic velocities increase in laboratory analysis due to porosity collapse/microcracks closure during the buildup pressures related to supercritical CO2 injectivity from offshore carbonate fields in Malaysia. The evaluation considered...

... Abstract The primary goal of this study is to determine the irreducible water saturation in all types of reservoirs and highlight its significance in estimating hydrocarbon initial-in-place. Irreducible water saturation is strongly correlated to permeability and porosity, and it has...

.... corrosion management drillstem/well testing geology upstream oil & gas geologist history matching lobe h2s management united states government africa government production chemistry reservoir characterization porosity contract giant contaminated gas field reservoir simulation oilfield...

... and adsorbed gas (S1) to an incremental porosity and gas saturation values. After that, the final porosity and saturation profiles, along with the other petrophysical data were incorporated into a fractured reservoir simulation model using a commercial reservoir simulator (CMG). Then, the production outcomes...

... government saturation porosity novel integrated approach geologist sedimentology well logging correspond low relief marginal field reservoir characterization formation characterize transition zone abu dhabi Introduction While planning marginal field developments, major challenges...

... differences in sand thickness, porosity and gas content at different locations in the channel, resulting in complex and variable seismic reflection characteristics, which makes it difficult to accurately characterize the channel sand body distribution through a single amplitude 'bright spot...

... There are relatively few petrological samples, 90 for the whole Miqrat, and 20 from the Ghazeer (nearest the developable area). The petrology doesn't fully capture the higher porosity and permeabilities in all wells, however, in the wells that have petrology, thin sections are slightly biased...