Results 41 to 50 of about 14,277 (215)

Wellhead Choke Performance for Multiphase Flowback: A Data-Driven Investigation on Shale Gas Wells

open access: yesEnergies
Wellhead choke performance is critical for flowback choke-size managements in unconventional gas wells. Most existing empirical correlations were originally developed for oil and gas flow, and their accuracy for gas/water multiphase flowback remains ...
Kundai Huang, Yingkun Fu, Yufei Guo
doaj   +1 more source

Main factors controlling the sedimentation of high-quality shale in the Wufeng–Longmaxi Fm, Upper Yangtze region

open access: yesNatural Gas Industry B, 2017
In this paper, the shale of Upper Ordovician Wufeng Fm–Lower Silurian Longmaxi Fm was taken as an example to reveal the distribution patterns and the main sedimentation controlling factors of high-quality shale in the Upper Yangtze region.
Yuman Wang   +4 more
doaj   +1 more source

The impact of forced closure on proppant distribution of hydraulic fracturing in shale formations

open access: yesDeep Underground Science and Engineering, EarlyView.
Research findings demonstrate that implementing forced closure within shale formations can remarkably mitigate proppant settlement, concurrently increasing the effective propped surface area from 29.74% to 38.68%. Abstract Forced closure is widely used in conventional oil and gas reservoirs to promote uniform proppant placement.
Tongxuan Gu   +3 more
wiley   +1 more source

Evidence From Microscopy and U–Pb Geochronology as a Clue to the Influence of the Cretaceous Magmatism in the Diagenesis of Pre‐Salt Carbonate Reservoirs in the Santos Basin (Brazil)

open access: yesGeological Journal, EarlyView.
Carbonates from Santos Basin revealed U–Pb ages correlated with basalt ages (A), suggesting that they were formed during magmatic events. These events placed hot CO2 in the reservoir, which, when mixed with carbonate‐rich cold water (B), led to thermal convection, enabling the formation of the U contained in the carbonates.
Marco António Ruivo de Castro e Brito   +8 more
wiley   +1 more source

Major controlling factors for the high-quality shale of Wufeng–Longmaxi Formation, Sichuan Basin

open access: yesEnergy Exploration & Exploitation, 2017
Research on major controlling factors of the high-quality shale in Upper Ordovician Wufeng–Lower Silurian Longmaxi Formation is a major subject.
Yuman Wang   +4 more
doaj   +1 more source

Energy Multiphase Model for Biocoal Conversion Systems by Means of a Nodal Network

open access: yesEnergies, 2020
The coal-producing territories in the world are facing the production of renewable energy in their thermal systems. The production of biocoal has emerged as one of the most promising thermo-energetic conversion technologies, intended as an alternative ...
Beatriz M. Paredes-Sánchez   +2 more
doaj   +1 more source

A constrained pressure-temperature residual (CPTR) method for non-isothermal multiphase flow in porous media

open access: yes, 2020
For both isothermal and thermal petroleum reservoir simulation, the Constrained Pressure Residual (CPR) method is the industry-standard preconditioner. This method is a two-stage process involving the solution of a restricted pressure system.
Jönsthövel, Tom B   +3 more
core   +1 more source

Advances in research on impulse hydro‐turbine technology

open access: yesRiver, EarlyView.
Abstract To accelerate the development of impulse hydro‐turbines and support the efficient utilization of hydropower resources in Southwest China, this paper examines the background, historical development, and research progress of impulse hydro‐turbines.
Xiaochao Li   +7 more
wiley   +1 more source

Application of a physics-based lumped parameter model to evaluate reservoir parameters during CO2 storage

open access: yesJournal of Petroleum Exploration and Production Technology, 2020
Evaluating reservoir performance could be challenging, especially when available data are only limited to pressures and rates from oil field production and/or injection wells.
Samin Raziperchikolaee, Srikanta Mishra
doaj   +1 more source

Petrophysical and rock physics analyses for characterization of complex sands in deepwater Niger delta, Nigeria [PDF]

open access: yes, 2019
Characterization of complex sand reservoirs in deepwater of Niger Delta was carried out through petrophysical and rock physics evaluation of well log data from three wells.
Adeyemi, Olatunde B.   +2 more
core   +1 more source

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