Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Sriramya Nair"'
In-situ high energy X-ray diffraction study of the elastic response of a metastable β-titanium alloy
Autor:
Darren C. Pagan, Anthony D. Rollett, Sean R. Agnew, Vahid Tari, Jishnu J. Bhattacharyya, Sriramya Nair
Publikováno v:
Acta Materialia. 197:300-308
In the present work, the elastic behavior of a metastable β-Ti alloy, Timetal-18, is studied in the β-quenched condition using in-situ far-field (ff) and near-field (nf) high energy synchrotron X-ray diffraction microscopy (HEDM) techniques and ful
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e4200e4910882f6c03cb82a1439fb66
https://doi.org/10.1016/j.actamat.2020.07.050
https://doi.org/10.1016/j.actamat.2020.07.050
Publikováno v:
Journal of Petroleum Science and Engineering. 158:479-493
This paper presents an advanced fiber optic distributed temperature and strain sensing (DTSS) system designed for real-time in-situ monitoring of cement presence and integrity in the annuli of an oil and gas well. The DTSS system is used to monitor c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5676a6ce3ea7aa77b742354ea9b4c955
https://doi.org/10.1016/j.petrol.2017.08.072
https://doi.org/10.1016/j.petrol.2017.08.072
Publikováno v:
Scientific Reports
Scientific Reports, Vol 9, Iss 1, Pp 1-12 (2019)
Scientific Reports, Vol 9, Iss 1, Pp 1-12 (2019)
Cementitious materials are complex composites that exhibit significant spatial heterogeneity in their chemical composition and micromechanical response. Modern 3-dimensional characterization techniques using X-rays from synchrotron light sources, suc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0ea36b5e13a0e3b6c62f044200d6f76
https://pubmed.ncbi.nlm.nih.gov/31804562
https://pubmed.ncbi.nlm.nih.gov/31804562
Publikováno v:
International Petroleum Technology Conference.
A good cement-casing bond is essential for effective zonal isolation in both active and abandoned wells. A new method was developed to monitor the cement-casing bond in real-time and in-situ using a fiber optic distributed temperature and strain sens
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed5a65b7f59cf2a150c81ee0410dde96
https://doi.org/10.2523/19380-ms
https://doi.org/10.2523/19380-ms
Autor:
Parth Panchmatia, Maria C.G. Juenger, Craig Usher, Sriramya Nair, Cody Krezinski, Eric van Oort, Moneeb Genedy
Publikováno v:
Journal of Petroleum Science and Engineering. 200:108257
Magnetorheological-blended cements (MRBC) are promising materials for plugging and abandonment applications in oil and gas wells because their viscosity can be reversibly controlled through the addition of magnetic particles and application of an ext
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd2d99b11bfba7d71ac1e0d30ffdb935
https://doi.org/10.1016/j.petrol.2020.108257
https://doi.org/10.1016/j.petrol.2020.108257
Autor:
Jishnu J. Bhattacharyya, Anthony D. Rollett, Vahid Tari, Ricardo A. Lebensohn, Sriramya Nair, Sean R. Agnew, Darren C. Pagan
Publikováno v:
International Journal of Plasticity. 139:102947
The elastoplastic transition of a metastable β-Ti alloy, Timetal-18, is studied using in-situ high energy synchrotron X-ray diffraction microscopy (HEDM). The measured evolutions of the complete elastic strain (and stress) tensor(s), resolved shear
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e61cac1c9614771807916dda5e71ee7
https://doi.org/10.1016/j.ijplas.2021.102947
https://doi.org/10.1016/j.ijplas.2021.102947
Autor:
Sriramya Nair, Raissa Douglas Ferron
Publikováno v:
Rheologica Acta. 55:571-579
A smart cement-based magnetorheological (MR) fluid, one that could be tailor-designed to yield the desired rheological properties of cement paste, in real time is presented. By incorporating magnetic particles inside the cement paste and by varying t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aadf80fc03d18c30429313bd7573d729
https://doi.org/10.1007/s00397-016-0923-x
https://doi.org/10.1007/s00397-016-0923-x
Publikováno v:
Journal of Petroleum Science and Engineering. 195:107555
Typical alkali-activated low-calcium fly ash (AAF) geopolymer formulations are yet to deliver acceptable rheologies for applications such as oil and gas well cementing, where the cement slurry needs to be pumped, and few effective superplasticizers h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ee05cdec2da0b8216ece0203b5e0b1f
https://doi.org/10.1016/j.petrol.2020.107555
https://doi.org/10.1016/j.petrol.2020.107555
Dissolution and initial hydration behavior of tricalcium aluminate in low activity sulfate solutions
Autor:
Darren C. Pagan, Matthias Lorenz, Paul E. Stutzman, Sriramya Nair, Anton V. Ievlev, Steven B. Feldman, Alexander S. Brand, Justin M. Gorham, Jeffrey W. Bullard
Publikováno v:
Cement and Concrete Research. 130:105989
Influences of alkali or alkaline earth sulfates on the hydration of cubic tricalcium aluminate (C3A) were evaluated by in situ dissolution rate measurements, by ex situ near-surface composition measurements with secondary ion mass spectrometry, and b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34971c762553cd7e1994af0af9abb467
https://doi.org/10.1016/j.cemconres.2020.105989
https://doi.org/10.1016/j.cemconres.2020.105989
Publikováno v:
Day 3 Wed, October 11, 2017.
There has been growing interest in the use of magnetorheological fluids to improve displacement efficiency of fluids (drilling fluids, spacer fluids, cement slurries) in the eccentric casing annuli. When magnetic particles are mixed with the cement s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::482043f62e03b40a17a4f4cfef8aab28
https://doi.org/10.2118/187047-ms
https://doi.org/10.2118/187047-ms