Zobrazeno 1 - 10
of 75
pro vyhledávání: '"K E, Gray"'
Publikováno v:
Petroleum Science, Vol 15, Iss 2, Pp 319-334 (2018)
Abstract Although a large volume of mudcake filtration test data is available in the literature, effects of mudcake on wellbore strengthening cannot be quantified without incorporating the data into a stress-analysis model. Traditional models for det
Externí odkaz:
https://doaj.org/article/a5eebadcb71e4f23a9a7a2740780e851
Publikováno v:
Offshore Technology Conference Asia.
Autor:
Qing’an Li, K. E. Gray, S. B. Wilkins, M. Garcia Fernandez, S. Rosenkranz, H. Zheng, J. F. Mitchell
Publikováno v:
Physical Review X, Vol 4, Iss 3, p 031028 (2014)
On theoretical grounds, we show that orbital domain walls (ODWs), which are known to exist in the charge and orbital ordered layered manganite LaSr_{2}Mn_{2}O_{7}, should be partially charged as a result of competition between orbital-induced strain
Externí odkaz:
https://doaj.org/article/5f572d3272124eb4937c025c51242111
Autor:
P. Dhakal, G. Ciovati, G. R. Myneni, K. E. Gray, N. Groll, P. Maheshwari, D. M. McRae, R. Pike, T. Proslier, F. Stevie, R. P. Walsh, Q. Yang, J. Zasadzinzki
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 16, Iss 4, p 042001 (2013)
Large-grain Nb has become a viable alternative to fine-grain Nb for the fabrication of superconducting radio-frequency cavities. In this contribution we report the results from a heat treatment study of a large-grain 1.5 GHz single-cell cavity made o
Externí odkaz:
https://doaj.org/article/24bc65511640439e98b4def1c9f094b9
Autor:
Yongcun Feng, K. E. Gray
Publikováno v:
SpringerBriefs in Petroleum Geoscience & Engineering ISBN: 9783319894348
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ece4d2d32b276220a959ecaadd74a90
https://doi.org/10.1007/978-3-319-89435-5
https://doi.org/10.1007/978-3-319-89435-5
Autor:
K. E. Gray, Yongcun Feng
Publikováno v:
Proceedings of the 6th Unconventional Resources Technology Conference.
Autor:
Yongcun Feng, K. E. Gray
Publikováno v:
SpringerBriefs in Petroleum Geoscience & Engineering ISBN: 9783319894348
Analyses of lost circulation and wellbore strengthening require knowledge of formation and wellbore geomechanics. This chapter provides a brief overview of some geomechanical concepts related to the subject, including in-situ stress, pore pressure, w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca9c199c716a5eee096a8b80d5da3d5b
https://doi.org/10.1007/978-3-319-89435-5_2
https://doi.org/10.1007/978-3-319-89435-5_2
Autor:
K. E. Gray, Yongcun Feng
Publikováno v:
SpringerBriefs in Petroleum Geoscience & Engineering ISBN: 9783319894348
This chapter presents theoretical models for the evaluation of wellbore strengthening based on plugging/bridging lost circulation fractures using LCMs. An analytical model and a finite-element numerical model are presented. The analytical model is de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34ba25ac09860325c950731673a7e562
https://doi.org/10.1007/978-3-319-89435-5_4
https://doi.org/10.1007/978-3-319-89435-5_4
Autor:
K. E. Gray, Yongcun Feng
Publikováno v:
SpringerBriefs in Petroleum Geoscience & Engineering ISBN: 9783319894348
Numerous LCMs have been proposed for curing lost circulation. However, due to the complexity of formation properties and fluid loss mechanisms, there is not a universal LCM suitable to all types of losses. The selection of LCMs is highly dependent on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::449eae46f2c5ecea0b06454b15dcb53e
https://doi.org/10.1007/978-3-319-89435-5_5
https://doi.org/10.1007/978-3-319-89435-5_5
Autor:
Yongcun Feng, K. E. Gray
Publikováno v:
SpringerBriefs in Petroleum Geoscience & Engineering ISBN: 9783319894348
Although there have been a lot of studies dedicated to lost circulation control and great successes have been achieved, the problem continues, with the increasing drilling operations in more complicated environments. Knowledge gaps and unsolved probl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b44b6a95f95b8f52a4e82b73b9d9fcd
https://doi.org/10.1007/978-3-319-89435-5_6
https://doi.org/10.1007/978-3-319-89435-5_6