Results 11 to 20 of about 3,713,734 (286)

Application of Multivariate Statistical Methods and Artificial Neural Network for Facies Analysis from Well Logs Data: An Example of Miocene Deposits

open access: yesEnergies, 2020
The main purpose of the study is a detailed interpretation of the facies and relate these to the results of standard well logs interpretation. Different methods were used: firstly, multivariate statistical methods, like principal components analysis ...
Edyta Puskarczyk
doaj   +1 more source

Well-Logging Constraints on Gas Hydrate Saturation in Unconsolidated Fine-Grained Reservoirs in the Northern South China Sea

open access: yesEnergies, 2022
Recently, drilling wells have encountered rich gas hydrates in fine-grained sediments in the northern South China Sea. Gas hydrate in fine-grained sediments is very heterogeneous, and its physical properties are different from those of oil and gas ...
Xiaoming Wan   +7 more
doaj   +1 more source

Generalised Pattern Matching Revisited [PDF]

open access: yes, 2020
In the problem of Generalised Pattern Matching (GPM) [STOC'94, Muthukrishnan and Palem], we are given a text T of length n over an alphabet Σ_T, a pattern P of length m over an alphabet Σ_P, and a matching relationship ⊆ Σ_T × Σ_P, and must return all ...
Dudek, Bartłomiej   +2 more
core   +2 more sources

WELL LOG DATA INTERPRETATION PROBLEMS IN WELL, DRILLED USING POLYMER-CLAY-BASED DRILLING MUD

open access: yesИзвестия высших учебных заведений: Нефть и газ, 2017
There was shown the low efficiency of standard well logging sequence for reservoirs identification and de-fining their saturation in the well, penetrating on polymer-clay-based drilling mud the section with high salinity of formation water.
G. E. Stroyanetskaya, E. A. Malykh
doaj   +1 more source

Joint interpretation of magnetotelluric, seismic, and well-log data in Hontomín (Spain) [PDF]

open access: yes, 2016
Acknowledgements. This work is dedicated to the memory of Andrés Pérez-Estaún, brilliant scientist, colleague, and friend. The authors sincerely thank Ian Ferguson and an anonymous reviewer for their useful comments on the manuscript.
Alcalde, Juan   +9 more
core   +3 more sources

Adaptive Feature Map-Guided Well-Log Interpolation

open access: yesRemote Sensing, 2023
As an irreplaceable quantitative interpretation method, prestack seismic inversion enables the effective estimation of subsurface elastic parameters for reservoir prediction.
Lingqian Wang, Hui Zhou, Hanming Chen
doaj   +1 more source

Numerical-Well-Testing Interpretation of Injection/Falloff Testing for Coalbed Methane Well in Hedong Coalfield

open access: yesEnergies, 2023
Numerical well testing is used mostly in oil/gas, geothermal, and coalbed methane injection/falloff well-testing interpretations while few published studies have been presented on how to adjust the models and numerical experiments parameters.
Shiyue Fang   +6 more
doaj   +1 more source

An Evolutionary Algorithm to Optimize Log/Restore Operations within Optimistic Simulation Platforms [PDF]

open access: yes, 2011
In this work we address state recoverability in advanced optimistic simulation systems by proposing an evolutionary algorithm to optimize at run-time the parameters associated with state log/restore activities.
PELLEGRINI, ALESSANDRO   +2 more
core   +1 more source

Machine Learning Algorithms for Lithofacies Classification of the Gulong Shale from the Songliao Basin, China

open access: yesEnergies, 2023
Lithofacies identification and classification are critical for characterizing the hydrocarbon potential of unconventional resources. Although extensive applications of machine learning models in predicting lithofacies have been applied to conventional ...
Mingqiu Hou   +5 more
doaj   +1 more source

BASIC WELL LOG INTERPRETATION IN PYTHON PROGRAMMING LANGUAGE [PDF]

open access: yesRomanian Journal of Petroleum & Gas Technology
Python has rapidly become the programming language of petroleum geoscientists during the last decade. It is used widely in development, research and scientific activities and is included in many commercial software as an option for additional scripting ...
Mihai Iorgandopol, Patricia Tita
doaj   +1 more source

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