Results 21 to 30 of about 764,678 (283)

Electrical rock typing using Gaussian mixture model to determine cementation factor

Journal of Petroleum Exploration and Production Technology, 2023
Many studies have worked on the estimation of fluid saturation as an important petrophysical property in hydrocarbon reservoirs. Based on Archie's law, proper determination of cementation factor (m) can lead to accurate values of water saturation.
Reza Najafi-Silab, Aboozar Soleymanzadeh, Parvin Kolah-kaj, Shahin Kord   +3 more
doaj   +1 more source

High Resolution Characterization of Lithological Heterogeneity of the Paaratte Formation, Otway Basin (Australia), a Coastal to Shallow-Marine Deposit

Geosciences, 2019
Coastal to shallow-marine deposits are inherently highly heterogeneous in sediment composition due to variable depositional conditions. Representation of heterogeneity at sub-seismic scales is required for understanding flow and geochemical processes and
Achyut Mishra, Lukas Pajank, Ralf R. Haese   +2 more
doaj   +1 more source

Integrated reservoir characterization and quality analysis of the carbonate rock types, case study, southern Iraq

Journal of Petroleum Exploration and Production Technology, 2020
The reservoir characterization and rock typing is a significant tool in performance and prediction of the reservoirs and understanding reservoir architecture, the present work is reservoir characterization and quality Analysis of Carbonate Rock-Types ...
Sameer Noori Ali Al-Jawad, Muhammad Abd Ahmed, Afrah Hassan Saleh   +2 more
doaj   +1 more source

Rock typing and causality analysis in unconventional formation using Bayes nets

Petroleum Research
Unconventional formations are characterized by high heterogeneity and anisotropy, making it difficult to interpret logging data, perform core analysis, and create accurate petrophysical models.
Evgeny Chekhonin, Alexander Nikitin, Dimitri Pissarenko, Yuri Popov, Raissa Romushkevich, Dzhulia Zagranovskaya   +5 more
doaj   +1 more source

Rock typing and reservoir zonation of the Asmari Formation in a gas field, Persian Gulf [PDF]

International Journal of Mining and Geo-Engineering
In this study, the geological and petrophysical methods were combined to investigate the reservoir characteristics of the Asmari Formation in one of the gas fields in the Persian Gulf.
Behrooz Esrafili-Dizaji
doaj   +1 more source

New rock typing method for diagenetically modified carbonate reservoirs

Georesursy
The paper evaluates an efficiency of the existing rock typing methods for diagenetically modified carbonate reservoirs and proposes a new alternative rock typing index.Four existing rock typing techniques are applied to the target formation, subjected to
E. Shvalyuk, A. Thistiakov, N. Bah, A. Mukhametdinova, A. Ryabukhin, M. Spasennykh   +5 more
doaj   +1 more source

Reservoir Characterization and Rock Typing of Carbonate Reservoir in the Southeast of Iraq

Iraqi Geological Journal, 2023
Flow unit and reservoir rock type identification in carbonates are difficult due to the intricacy of pore networks caused by facies changes and diagenetic processes.
Ohood Salman, Omar Al-Fatlawi, Sameer Al-Jawad   +2 more
doaj   +1 more source

A fast FFT method for 3D pore-scale rock-typing of heterogeneous rock samples via Minkowski functionals and hydraulic attributes [PDF]

E3S Web of Conferences, 2020
The integration of numerical simulation and physical measurements, e.g. digital and conventional core analysis, requires the consideration of significant sample sizes when heterogeneous core samples are considered.
Jiang Han, Arns Christoph H.
doaj   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Integrated rock typing and pore facies analyses in a heterogeneous carbonate for saturation height modelling, a case study from Fahliyan Formation, the Persian Gulf

Journal of Petroleum Exploration and Production Technology, 2021
Knowledge of initial fluids saturation has great importance in hydrocarbon reservoir analysis and modelling. Distribution of initial water saturation (Swi) in 3D models dictates the original oil in place (STOIIP), which consequently influences reserve ...
Rasoul Ranjbar-Karami, Parisa Tavoosi Iraj, Hamzeh Mehrabi   +2 more
doaj   +1 more source