Zobrazeno 1 - 10
of 203
pro vyhledávání: '"E. Fjær"'
Publikováno v:
All Days.
ABSTRACT: Numerous observations have shown that shale formations may creep in and close the annulus between rock and casing in deep wells, thus effectively sealing off the well sections in a natural way. This movement of the rock is partly controlled
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a79fd8bb78a50abe0442ce23ee939f55
https://doi.org/10.56952/arma-2022-0702
https://doi.org/10.56952/arma-2022-0702
Publikováno v:
All Days.
ABSTRACT: The purpose of this work is to study the evolution of non-elastic deformations and their effect on static stiffness prior to reaching plastic yield. To this end, a series of geomechanical laboratory experiments on preserved rock cores of va
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e668bbc4bc04f48e816ec64dc9fb2916
https://doi.org/10.56952/arma-2022-0714
https://doi.org/10.56952/arma-2022-0714
Akademický článek
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Publikováno v:
Sixth EAGE Shale Workshop.
Summary In this work, it was investigated if heating of a cased borehole in a shale formation can induce plastic deformations that are sufficiently high to close the annulus between shale and casing and form a hydraulic barrier. This is of interest f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0217181de770bbce2167ed9d63d5468
https://doi.org/10.3997/2214-4609.201900329
https://doi.org/10.3997/2214-4609.201900329
Autor:
E Fjær, J.F. Stenebråten
Publikováno v:
Proceedings.
Summary When a well is going to be permanently plugged and abandoned, the annulus between casing and rock has to be sealed at least in certain sections of the well, in order to ensure permanent protection against leakage. In some shale sections it ha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86f642eea191b590f8be349583d81117
https://doi.org/10.3997/2214-4609.201600415
https://doi.org/10.3997/2214-4609.201600415
Publikováno v:
Proceedings.
Severe borehole instability problems may be encountered when drilling through shales, potentially representing a substantial cost to the operator. Such rock mechanical instabilities may have both physical and chemical origin. They are however general
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41c6ca02a44a97910e4389affe82ab55
https://doi.org/10.3997/2214-4609.20143918
https://doi.org/10.3997/2214-4609.20143918
Autor:
J. Tronvoll, E. Fjær
Publikováno v:
International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts. 31:393-410
Sand production from perforation cavities has been studied by means of physical model experiments of an in situ perforation cavity on a 1:1 scale. The study focused on the mechanisms of cavity instability, sand production and, in particular, the effe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7fd8bc5b244ec35ebb4f960d81d7c3dd
https://doi.org/10.1016/0148-9062(94)90144-9
https://doi.org/10.1016/0148-9062(94)90144-9
Publikováno v:
Proceedings.
To improve the understanding of behavior related to the borehole geometry in shales, and to generate better input data to borehole stability simulators to be used when estimating the stable mud weight window, we have developed an experimental methodo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e01e8683f775b5d7b41641b906b4ec1
https://doi.org/10.3997/2214-4609.20145381
https://doi.org/10.3997/2214-4609.20145381
Publikováno v:
Proceedings.
Based on a calibrated model for porosity versus depth in sedimentary basins, the impact of clay content is described. The model is based on rock mechanical principles, and describe porosity as a function of pore compaction and effective stress. The r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::550852d7b0f29d424180756f6f8d0d58
https://doi.org/10.3997/2214-4609.20145397
https://doi.org/10.3997/2214-4609.20145397
Autor:
E. Fjær, T. G. Kristiansen
Publikováno v:
71st EAGE Conference and Exhibition incorporating SPE EUROPEC 2009.
A screening tool for simulation of expected 4D seismic effects in connection to a depleting reservoir is described. A few examples of how the model can be used to interpret seismic observations are given. These include the development of traveltime s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a6e73f490a20c1abe384aff74cc05807
https://doi.org/10.3997/2214-4609.201400078
https://doi.org/10.3997/2214-4609.201400078