Results 1 to 10 of about 1,193,974 (232)

3D Multiclass Digital Core Models via microCT, SEM-EDS and Deep Learning [PDF]

open access: yesE3S Web of Conferences, 2023
We describe an integrated methodology for constructing a 3D multiclass model of a rock sample, based on X-ray microtomography (microCT) and quantitative evaluation of minerals (QEMSCAN) by automated SEM-EDS (Scanning Electron Microscopy, Energy ...
Varfolomeev Igor   +2 more
doaj   +1 more source

Comparing Centrifuge, Steady-State and Semi-Dynamic Methods for Relative Permeability and Capillary Pressure Determination: New Insights [PDF]

open access: yesE3S Web of Conferences, 2023
Relative permeability and capillary pressure are essential parameters for understanding multiphase flow in porous media and scenarios of production in oil or gas reservoirs. There are several experimental methods for determining the relative permeability
Pairoys Fabrice   +3 more
doaj   +1 more source

Pore Preservation and Failure Mechanism of Sinian Dengying Formation Carbonate Reservoirs: A Case Study of Two Ultradeep Wells in the Sichuan Basin, Western China

open access: yesGeofluids, 2021
Despite being one of the most important factors in deep oil and gas exploration, the preservation mechanisms of ultradeep carbonate reservoirs remain poorly understood.
Zeqi Li   +10 more
doaj   +1 more source

A Powerful Prediction Framework of Fracture Parameters for Hydraulic Fracturing Incorporating eXtreme Gradient Boosting and Bayesian Optimization

open access: yesEnergies, 2023
In the last decade, low-quality unconventional oil and gas resources have become the primary source for domestic oil and gas storage and production, and hydraulic fracturing has become a crucial method for modifying unconventional reservoirs.
Zhe Liu   +7 more
doaj   +1 more source

Draft genome sequence of Enterobacter chengduensis ECC445, isolated from fresh water in the West Indies

open access: yesBMC Genomic Data, 2023
Objectives The Enterobacter cloacae complex is considered an important opportunistic pathogen. It comprises many members that remain difficult to delineate by phenotypic approaches.
Matthieu Pot   +7 more
doaj   +1 more source

The Investigation on Initiation and Propagation of Hydraulic Fractures in Shale Reservoir

open access: yesGeofluids, 2021
Hydraulic fracturing is a necessary technique for shale gas exploitation. In order to have efficient stimulation treatment, a complex fracture network has to be developed, whereas with rich bedding planes and natural fractures, the mechanism of forming a
Xiangjun Liu   +5 more
doaj   +1 more source

Sedimentary environment and petrological features of organic-rich fine sediments in shallow water overlapping deposits: A case study of Cambrian Yuertus Formation in northwestern Tarim Basin, NW China

open access: yesPetroleum Exploration and Development, 2020
: Taking the Cambrian Yuertus Formation outcrop profiles in the Aksu-Keping-Wushi areas of northwestern Tarim Basin as examples, the depositional environments of organic rich fine sediment were analyzed by examining the outcrop profiles macroscopically ...
Zhimin JIN   +9 more
doaj   +1 more source

The Pattern of Vector Control in Malaria Endemic Areas of Central Java Province

open access: yesBIO Web of Conferences, 2021
Malaria remains a public health problem in Indonesia, therefore, a study was conducted to guarantee a reduction in malaria cases and to support an elimination program.
Wigati R.A.   +3 more
doaj   +1 more source

Entanglement trapping in a non-stationary structured reservoir [PDF]

open access: yes, 2012
We study a single two-level atom interacting with a reservoir of modes defined by a reservoir structure function with a frequency gap. Using the pseudomodes technique, we derive the main features of a trapping state formed in the weak coupling regime ...
B. M. Garraway   +5 more
core   +3 more sources

Study on Relationship between Joint Surface’s Shear Strength and Morphology Parameter Deterioration of Typical Bank Slope in Wudongde

open access: yesAdvances in Materials Science and Engineering, 2022
The change of typical bank slope’s water occurrence environment and the special climatic condition of dry hot valley in Wudongde reservoir area will make the shear characteristics of jointed rock mass on bank slope deteriorate continuously. Based on this,
Jing Yu Zhang   +6 more
doaj   +1 more source

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