Results 31 to 40 of about 14,885 (159)

Introduction and investigation of magnetic location system for steam-assisted gravity drainage dual-horizontal heavy oil wells

open access: yesAdvances in Mechanical Engineering, 2018
Steam-assisted gravity drainage has been proven to be an effective oil recovery method, and the technology of magnetic location is the key to steam-assisted gravity drainage.
Yong Chen, Hao Yi, Chuan He
doaj   +1 more source

Gravity drainage during gas injection

open access: yesPetroleum Geoscience, 1995
The drainage of oil under gravitational forces has been an important mechanism in the production of many oil fields. In order to extend the economic implementation of gas injection into more marginal fields, a reduction in the uncertainties associated with gravity drainage is required.
P. Naylor   +4 more
openaire   +2 more sources

Experimental Study and Modeling of Gravity Drainage during WAG Process in Fractured Carbonate Rocks [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2008
The experimental study and modeling of gravity drainage during Water Alternative Gas Injection, WAG process, in carbonate rock for one of the Iranian off-shore reservoir at lab-scale were carried out.
Mahdi Jafari   +5 more
doaj  

Physical and Numerical Simulations of Steam Drive and Gravity Drainage Using the Confined Bottom Oil–Water Transition Zone to Develop Super Heavy Oil

open access: yesEnergies, 2023
The existence of the bottom oil–water transition zone (BTZ) greatly impairs the performance of the conventional steam-assisted gravity drainage (SAGD) process and its mitigation measures are very limited.
Qian Xie   +5 more
doaj   +1 more source

Valley Networks and the Record of Glaciation on Ancient Mars

open access: yesGeophysical Research Letters, 2022
The lack of evidence for large‐scale glacial landscapes on Mars has led to the belief that ancient glaciations had to be frozen to the ground. Here we propose that the fingerprints of Martian wet‐based glaciation should be the remnants of the ice sheet ...
A. Grau Galofre   +3 more
doaj   +1 more source

Project of Intervention Works to Restore a Historical Complex - Part I [PDF]

open access: yesUrbanism. Arhitectura. Constructii, 2013
The historical monument called Yellow Ravine (Râpa Galbenă, Rom.) of Iaşi, subject of a consolidation and rehabilitation, has been in aconstant state of decay for several years, up to 2005, when started a project of intervention works to save the complex.
George Maftei   +3 more
doaj  

Developing digital image processing methods to quantify internal and interfacial convection in the Hele-Shaw cell, with applications to the laboratory ice–ocean boundary layer

open access: yesJournal of Glaciology
Obtaining high-resolution, autonomous and continuous measurements of internal and interfacial convection at the ice–ocean interface is important to understand sea-ice desalination, compare the effects of gravity drainage and salt segregation, and give ...
Safiyyah Moos   +5 more
doaj   +1 more source

Models for polythermal ice sheets and glaciers [PDF]

open access: yesThe Cryosphere, 2017
Polythermal ice sheets and glaciers contain both cold ice and temperate ice. We present two new models to describe the temperature and water content of such ice masses, accounting for the possibility of gravity- and pressure-driven water drainage ...
I. J. Hewitt, C. Schoof
doaj   +1 more source

ANALYSIS OF THE PIT REMOVAL METHODS IN DIGITAL TERRAIN MODELS OF VARIOUS RESOLUTIONS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
Digital terrain model (DTM) is the base for calculation of the surface runoff under the influence of the gravity (gravity flow) in hydrological analysis.
S. Šamanović, D. Medak, D. Gajski
doaj   +1 more source

Pad-scale control improves SAGD performance

open access: yesPetroleum, 2018
Steam Assisted Gravity Drainage (SAGD) is widely used in the Athabasca oil sands deposit to recover bitumen. Since the viscosity of bitumen is high at original reservoir conditions, heat is required to lower its viscosity to the point it becomes mobile ...
Tao Guo, Jingyi Wang, Ian D. Gates
doaj   +1 more source

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