Results 21 to 30 of about 11,809 (204)

Thermal effects on geologic carbon storage [PDF]

open access: yes, 2017
The final publication is available at Springer via http://dx.doi.org/10.1016/j.earscirev.2016.12.011One of the most promising ways to significantly reduce greenhouse gases emissions, while carbon-free energy sources are developed, is Carbon Capture and ...
Rutqvist, Jonny   +1 more
core   +2 more sources

Numerical Simulation Analysis of Wellbore Stability in Weak Interlayer of Igneous Rock

open access: yesApplied Sciences, 2023
Wellbores drilled in igneous formation with weak interlayers face significant risk of instabilities. This study aims to investigate the underlying mechanisms of these instabilities by employing a combination of rock mechanics tests and numerical ...
Dongyu Su   +3 more
doaj   +1 more source

Modelling of deep wells thermal modes [PDF]

open access: yes, 2019
Purpose. Investigation of various heat-exchange conditions influence of the tower liquid on the deep wells thermal conditions. Methods. Methods of heat-exchange processes mathematical modeling are used.
Blyuss, B   +4 more
core   +1 more source

Numerical Investigation of Wellbore Stability in Deepwater Shallow Sediments

open access: yesGeofluids, 2021
An elaborate poro-elastoplastic numerical model has been developed in this paper to explore the stability characteristics of wellbore in shallow sediments of deepwater oil/gas wells.
Wei Liu   +5 more
doaj   +1 more source

Effect of fracture pressures on the selection of depths for casing setting in Slovakia [PDF]

open access: yes, 2016
Purpose. The purpose of the article is to describe the method of casing wells for oil and gas in the Slovak Republic. Methods. Apparently there is no general method or procedure that gives the optimal location.
Pinka, Ja, Vytyaz, O
core   +2 more sources

Wellbore stability analysis to determine the safe mud weight window for sandstone layers

open access: yesPetroleum Exploration and Development, 2019
The wellbore stability of a vertical well through the sandstone reservoir layers of the Asmari oil-bearing formation in south-west Iran is investigated. The safe drilling-fluid density range for maintaining wellbore stability is determined and simulated ...
Ayoub DARVISHPOUR   +3 more
doaj   +1 more source

Shale problems and water-based drilling fluid optimisation in the Hassi Messaoud Algerian oil field [PDF]

open access: yes, 2010
Drilling fluid formulation and properties play a fundamental role in drilling operations. Clay minerals behave initially as a beneficial rheological adjuvant in drilling muds.
Benmounah, Abdelbaki   +6 more
core   +2 more sources

Evolution Law of Wellbore Instability Risk under Fluctuating Pressure

open access: yesEnergies, 2023
The bottom hole fluctuating pressure has a large influence on the wellbore instability. To address this problem, firstly, according to the principle of seepage mechanics, we established a calculation model of the change in pore pressure around the ...
Kai Zhao   +4 more
doaj   +1 more source

The performance of stochastic designs in wellbore drilling operations [PDF]

open access: yes, 2017
© 2018, The Author(s). Wellbore drilling operations frequently entail the combination of a wide range of variables. This is underpinned by the numerous factors that must be considered in order to ensure safety and productivity.
A Eckert   +49 more
core   +1 more source

Geomechanical analysis of an oil field: Numerical study of wellbore stability and reservoir subsidence

open access: yesPetroleum Research, 2023
Geomechanics as the knowledge of rock deformation and stability is an indispensable part of all field development plans. Conducting geomechanical analyses leads to a safer and more efficient operation otherwise different kinds of instability and ...
Saeed Shad   +2 more
doaj   +1 more source

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