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pro vyhledávání: '"Lvchao Yang"'
Autor:
Zhi Zhang, Zhengqing Ai, Lvchao Yang, Yuan Zhang, Xueyu Pang, Zhongtao Yuan, Zhongfei Liu, Jinsheng Sun
Publikováno v:
Materials, Vol 17, Iss 21, p 5246 (2024)
With the depletion of shallow oil and gas resources, wells are being drilled to deeper and deeper depths to find new hydrocarbon reserves. This study presents the selection and optimization process of the cement slurries to be used for the deepest we
Externí odkaz:
https://doaj.org/article/d4c7045e614649139cf6c4e9f6eef37a
Autor:
Zhen Zhang, Zhongtao Yuan, Sutao Ye, Yang Li, Lvchao Yang, Xueyu Pang, Kaihe Lv, Jinsheng Sun
Publikováno v:
Energies, Vol 17, Iss 15, p 3856 (2024)
The cyclic loading generated by injection and production operations in underground gas storage facilities can lead to fatigue damage to cement sheaths and compromise the integrity of wellbores. To investigate the influence of cyclic loading on the fa
Externí odkaz:
https://doaj.org/article/cc0bafcf3ebd4af3aba3aed3333449c6
Publikováno v:
Energy Reports, Vol 8, Iss , Pp 11695-11706 (2022)
The well trajectory of horizontal wells are constantly changing due to the variation of well inclination and azimuth with depth, leading to a large difference of displacement efficiency in the annulus compared to a vertical well. In low pressure and
Externí odkaz:
https://doaj.org/article/a04ea4122349409798db0b38d4573612
Publikováno v:
Journal of Petroleum Science and Engineering. 208:109236
In most realistic situations, casing eccentricity and various fluids injected during primary cementing lead to a significant difference in fluid flow and circulating pressure, compared with a single fluid flowing in the concentric annulus. Ignoring t
Publikováno v:
Journal of Petroleum Science and Engineering. 204:108691
Displacement efficiency of horizontal wells is mainly affected by casing eccentricity and slurry column structure in the wellbore, and it is an essential precondition for ensuring primary cementing quality. Most current studies use annulus two-phase
Publikováno v:
Journal of Petroleum Science and Engineering. 189:106918
The eccentric annulus represents the majority of real-life situations and is attributed to a continuous change of hole-deviation angle and azimuth angle with well depth, leading to a difference in fluid flow and heat transfer mechanisms, compared wit