Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Erick Slis Raggio Santos"'
Publikováno v:
International Journal for Numerical and Analytical Methods in Geomechanics. 46:3310-3341
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c41929436e7ee0c86fa230e5daec04f
https://doi.org/10.1002/nag.3452
https://doi.org/10.1002/nag.3452
Autor:
Tiago Luís Duarte Forti, Erick Slis Raggio Santos, Philippe R.B. Devloo, Manouchehr Sanei, Omar Durán
Publikováno v:
Rock Mechanics and Rock Engineering. 55:399-421
Optimization can apply in almost every branch of science and technology. In particular, a gradient-based iterative method is a mathematical optimization procedure that can be used to make decisions. The gradient-based optimization method can only fin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::90aea5c49f040aca3c3e0c2a1503e416
https://doi.org/10.1007/s00603-021-02665-y
https://doi.org/10.1007/s00603-021-02665-y
Autor:
Flávio Tito Peixoto Filho, Erick Slis Raggio Santos, Eurípedes do Amaral Vargas Júnior, F. H. Ferreira
Publikováno v:
Geotechnical and Geological Engineering. 39:4127-4142
In coring operations, core jamming is a permanent concern, taking place when the rock core sample becomes stuck within the inner core barrel, thus preventing further acquisition. This is undesirable in hard formations, for it stops the penetration of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ddd9b9d66c4ec9c3068099d9457de41
https://doi.org/10.1007/s10706-021-01741-y
https://doi.org/10.1007/s10706-021-01741-y
Publikováno v:
Computational Geosciences. 24:1557-1587
In this paper, it is proposed an enhanced sequential fully implicit (ESFI) algorithm with a fixed stress split to approximate robustly poro-elastoplastic solutions related to reservoir geomechanics. The constitutive model considers the total strain e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::579a3af45c28ca4d56b445bcf3e7642e
https://doi.org/10.1007/s10596-020-09965-2
https://doi.org/10.1007/s10596-020-09965-2
Publikováno v:
International Journal for Numerical and Analytical Methods in Geomechanics. 43:814-828
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd7dc51aad37dc690d67a13ce8009e07
https://doi.org/10.1002/nag.2895
https://doi.org/10.1002/nag.2895
The withdrawal of fluid from a reservoir results in a decline of the fluid pressure followed by a consequent change in stress state in porous rocks. Stress change may cause irreversible deformation and compaction. Such compaction is generally the res
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5cab44d784688d422488a3825870f6d
https://doi.org/10.1002/essoar.10503274.1
https://doi.org/10.1002/essoar.10503274.1
Autor:
Erick Slis Raggio Santos, Paulo Fernando Villafañe Garcia, F. H. Ferreira, Anselmo Machado Borba, D. F. Rossi
Publikováno v:
Day 3 Thu, October 31, 2019.
Results from mechanical tests on grainstone and dolomite wellcore samples obtained from the Quissamã formation are presented. Unconfined compressive strength (UCS) logs obtained from scratch tests are compared to known relations. Elastic compressibi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f795c0a00654c262f18a1d25eb26995
https://doi.org/10.4043/29770-ms
https://doi.org/10.4043/29770-ms
Publikováno v:
Computers and Geotechnics. 124:103604
An innovative numerical scheme to improve the integration algorithm for critical state elastoplasticity is presented and detailed with special consideration to the modified Cam-Clay model. The scheme is based on a rotation of the principal stresses a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b9ecf6010ecd737b4cf46e3c65ab2be
https://doi.org/10.1016/j.compgeo.2020.103604
https://doi.org/10.1016/j.compgeo.2020.103604
Sanding Onset Prediction on a Ultra-Deepwater Well Using a Probabilistic Approach: From Lab to Field
Publikováno v:
Day 3 Thu, October 29, 2015.
Sand production is a serious problem in many petroleum basins worldwide. It costs the oil and gas industry tens of billions of dollars annually. Additionally, uncontrolled sand production results in costly workover operations and, in some cases, can
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7221567b806579a6b7451ccad1f00eec
https://doi.org/10.4043/26185-ms
https://doi.org/10.4043/26185-ms
Publikováno v:
All Days.
Abstract Rocks are frictional materials which tend to behave differently when subjected to tensile, shear or pure compressive stress states. Much work has been done on the characterization of rock reservoirs for the purposes of production problems su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b23ac0ed7edcfccb60c08103e07c760
https://doi.org/10.4043/24407-ms
https://doi.org/10.4043/24407-ms