Results 61 to 70 of about 127,212 (251)

Evaluation of seismic responses from well-associated gas producing sands using integrated approaches for optimal field production in Zamzama gas field, Pakistan

Journal of Asian Earth Sciences: X, 2023
The producing fields often observe early decline due to many misapprehended factors concerning structural interpretation, facies identification, and proper estimation of geological properties.
MonaLisa, Zahid Ullah Khan, Muyyassar Hussain, Syed Adnan Ahmed   +3 more
doaj   +1 more source

Fifty years of research on the Joulters ooid sandbody—Impact on carbonate sedimentology and diagenesis and lessons learned from an invaluable analogue

The Depositional Record, Volume 11, Issue 5, Page 1399-1432, November 2025.
The Joulters ooid sandbody of northern Great Bahama Bank is a vast expanse of muddy ooid sands partly rimmed by clean ooid sands and formed into a relatively thick layer of significant extent. Knowledge of the development of depositional and diagenetic patterns in the Joulters example has forwarded our general understanding of carbonate sedimentology ...
Paul (Mitch) Harris
wiley   +1 more source

Petrophysical Variation in Central North Sea Fields [PDF]

, 2012
Imperial Users ...
Agrawal, Utsav, Agrawal, Utsav
core  

Typification of the deposits of the Tyumen Formation according to the degree of hydrodynamic conditions of sedimentation to create a petrophysical model and differentiated interpretation of well log data

Georesursy
The article considers facies analysis and the application of its results for the typification of rocks of the Tyumen Formation. The aim of the article is to create algorithms for the differentiated interpretation of geophysical studies of well log data ...
T. G. Isakova, A. S. Persidskaya, O. V. Khotylev, J. A. Kotochkova, A. D. Egorova, T. F. Dyakonova, A. S. Mozgovoy, V. V. Churkina, S. V. Kozakov, N. V. Kozhevnikova, R. Z. Livaev, V. S. Druchin, N. V. Belov, G. A. Kalmykov   +13 more
doaj   +1 more source

Petrophysical Signatures and Mineral Endowment: The Piché Group, Augmitto–Bouzan Sector, Québec, Canada

Geophysical Prospecting, Volume 73, Issue 9, November 2025.
ABSTRACT Hydrothermal alteration plays a crucial role in the precipitation of gold and other metals, particularly within orogenic gold deposits hosted in mafic and ultramafic rocks. This alteration significantly modifies the rock matrix, leading to changes in its petrophysical properties.
Yasaman Nemati, J. Christian Dupuis, Bernard Giroux, Richard Smith, Rita Rodrigues, Bertrand Rottier, Georges Beaudoin   +6 more
wiley   +1 more source

A multi-scale approach to determine the REV in complex carbonate rocks [PDF]

, 2013
Complex porous carbonates display heterogeneity at different scales, influencing their reservoir properties (e.g. porosity) especially since different porosity types may exist on different spatial scales.
Bultreys, Tom, Claes, Steven, Cnudde, Veerle, Ozkül, M, Swennen, Rudy   +4 more
core  

Acoustic properties in travertines and their relation to porosity and pore types [PDF]

, 2015
Sonic velocities of Pleistocene travertines were measured under variable confining pressures. Combined with petrographical characteristics and petrophysical data, i.e.
Claes, H., Claes, S., Hamaekers, H., Kele, S., Kleipool, L.M., Soete, J., Özkul, Mehmet   +6 more
core   +1 more source

Diagenetic Facies and Their Controls on the Quality of Tight Sandstone Reservoirs: A Case Study from the Upper Paleozoic Gas Reservoir in the Eastern Ordos Basin, North China

Geofluids, 2023
Diagenetic facies play a significant role in the evaluation and prediction of reservoirs as they comprehensively reflect the spatial distribution characteristics of deposition, diagenesis, and petrophysical properties.
Xiaoli Qin, Rongxi Li, Lei Chen, Kun Jiao, Jinghua Cheng, Ahmed Khaled, Limiao Yao, Junnian Chen   +7 more
doaj   +1 more source

The Methods of Determination of Stratigraphic Boundaries and Reservoir Units for the Yamama Formation in the Ratawi Oil Field, Southern Iraq

Iraqi Geological Journal, 2023
The qualitative interpretation of the logs was used by interpreting the behaviour of their curves to determine the upper and lower boundaries of the Yamama Formation in the Ratawi Oil Field, southern Iraq, and their reservoir units for the wells
Israa Al-Iessa, Wang Zhang
doaj   +1 more source

Characterizing Spatial Heterogeneity of Hydraulic Conductivity Using Borehole NMR in a Complex Groundwater Flow System

Water Resources Research, Volume 61, Issue 10, October 2025.
Abstract Borehole nuclear magnetic resonance (NMR) logging can yield estimates of hydraulic conductivity (K) in unconsolidated sediments. Previous studies focused on establishing petrophysical models relating NMR responses to K and calibrating model constants for optimized K estimation.
Chenxi Wang, Colby M. Steelman, Walter A. Illman   +2 more
wiley   +1 more source