Results 11 to 20 of about 1,489,062 (321)

Comparing carbon sequestration in an oil reservoir to sequestration in a brine formation-field study [PDF]

open access: yes, 2008
Geologic sequestration of CO2 in an oil reservoir is generally considered a different class than sequestration in formations which contain only brine. In this paper, the significance and validity of this conceptualization is examined by comparing the ...
Choi, Jong-Won   +6 more
core   +1 more source

Plugging Performance of a New Sulfonated Tannin Gel System Applied in Tight Oil Reservoir

open access: yesGeofluids, 2022
In this study, based on the high-temperature characteristics of Western China tight oil reservoirs, a phenolic-larch tannin, temperature-resistant, plugging agent was synthesized by changing the mass fractions of larch tannin, double cross-linking agent,
Tianhan Xu   +4 more
doaj   +1 more source

Failure analysis of long round thread in horizontal well casing under multi-axis loading [PDF]

open access: yesE3S Web of Conferences, 2020
The casing is subjected to complicated forces underground, and the threaded joint of the casing is the weak link of the casing. becoming more and more severe, various kinds of failure accidents often occur in practical use.
Tiejun Lin   +4 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

malERA: An updated research agenda for characterising the reservoir and measuring transmission in malaria elimination and eradication.

open access: yesPLoS Medicine, 2017
This paper summarises key advances in defining the infectious reservoir for malaria and the measurement of transmission for research and programmatic use since the Malaria Eradication Research Agenda (malERA) publication in 2011.
malERA Refresh Consultative Panel on Characterising the Reservoir and Measuring Transmission
doaj   +1 more source

Using multiphase fluid flow modeling and time-lapse electromagnetics to improve 4D monitoring of CO 2 in an EOR reservoir [PDF]

open access: yes, 2018
Understanding the changes in the saturation within a reservoir undergoing enhanced oil recovery (EOR) is crucial to optimizing production. We debut a novel, multiphase fluid flow modelling code, TOGA, to assist in modeling gas, oil, and water phases ...
Doughty, C, MacLennan, K
core   +1 more source

Conditions for superdecoherence [PDF]

open access: yes, 2020
Decoherence is the main obstacle to quantum computation. The decoherence rate per qubit is typically assumed to be constant. It is known, however, that quantum registers coupling to a single reservoir can show a decoherence rate per qubit that increases ...
Kattemölle, Joris, van Wezel, Jasper
core   +3 more sources

The Viscosity of Methane in Organic Slit Nanopore of Gas-Bearing Shale by Molecular Dynamic Simulation

open access: yesGeofluids, 2022
Non-Darcy flow is observed in the shale gas reservoir because it is rich in organic nanopores. Generally, the permeability of shale gas reservoirs is modified because of non-Darcy flow. However, the viscosity is much less concerned.
Dongchen Liu   +6 more
doaj   +1 more source

Lab and Field Scale Modeling of Near Miscible CO2 Injection in Different Porous Mediums [PDF]

open access: yesJournal of Petroleum Science and Technology, 2015
The main purpose of this investigation is to study the effect of near miscible CO2 injection in different porous mediums on both lab and field scales. This effect can be traced by the change of two-phase gas-oil relative permeability curves. In this work,
Mohammad Parvazdavani   +2 more
doaj   +1 more source

Quasistates in a ring coupled to a reservoir and their relation to the Dicke effect [PDF]

open access: yes, 2003
We study the energy spectrum and the persistent current in an ideal one-dimensional mesoscopic ring coupled to an external fermionic reservoir. The contact between ring and reservoir is described by a tunneling operator, which causes an indirect coupling
Chudnovskiy, Alexander, Wunsch, Bernhard
core   +1 more source

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