Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Hanzhi Yang"'
Autor:
Xin Chang, Guozhou Qiu, Jing Li, Yintong Guo, Zhiwen Hu, Hanzhi Yang, Xinao Zhang, Yongjiang Liu
Publikováno v:
Energy Science & Engineering, Vol 12, Iss 8, Pp 3227-3242 (2024)
Abstract To study the effect of vertical stress difference coefficient on fracture characteristics of shale fracturing, high stress true triaxial hydraulic fracturing test was carried out. By analyzing the profile after fracturing, it was found that
Externí odkaz:
https://doaj.org/article/e68f792d9935446885ee6ee8a40807ed
Publikováno v:
Complex & Intelligent Systems, Vol 10, Iss 5, Pp 7077-7088 (2024)
Abstract The current paradigm of joint detection and tracking still requires a large amount of instance-level trajectory annotation, which incurs high annotation costs. Moreover, treating embedding training as a classification problem would lead to d
Externí odkaz:
https://doaj.org/article/c7404a152873488192b36679c088540a
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 5, Pp 1667-1683 (2024)
Karst fracture-cavity carbonate reservoirs, in which natural cavities are connected by natural fractures to form cavity clusters in many circumstances, have become significant fields of oil and gas exploration and exploitation. Proppant fracturing is
Externí odkaz:
https://doaj.org/article/1dde8541cc934e149757db98bbb6c2c1
Autor:
Wuhao Guo, Yintong Guo, Zhenhua Cai, Hanzhi Yang, Lei Wang, Chunhe Yang, Guokai Zhao, Zhenhui Bi
Publikováno v:
Journal of Petroleum Exploration and Production Technology, Vol 13, Iss 3, Pp 827-841 (2022)
Abstract The high temperature and high in-situ stress geological environment can significantly affect the mechanical properties, failure modes, and deformation characteristics of deep shale reservoirs. In this study, real-time high temperature triaxi
Externí odkaz:
https://doaj.org/article/980462b7d2f54bbcbdafd2195eea67f2
Publikováno v:
Journal of Petroleum Exploration and Production Technology, Vol 13, Iss 2, Pp 705-721 (2022)
Abstract Cement sheath is an annular structure situated between casing and formation, which is designed to seal the formation and reinforce the borehole. However, owing to the surface irregularity and drilling mud residue, the interface between the c
Externí odkaz:
https://doaj.org/article/a2ad7a9cfdae4b18b2cb48e32244f2f0
Publikováno v:
Frontiers in Energy Research, Vol 9 (2021)
The inter-salt shale in the Qianjiang formation of Jianghan Basin in China is characterized by multiple salt-shale bedding planes, various rock strength, and high heterogeneity of rock mechanics. In this paper fracturing experiments under different c
Externí odkaz:
https://doaj.org/article/4d6aac2f465e4151aa8319affc4f149d
Publikováno v:
Frontiers in Earth Science, Vol 9 (2021)
Hydration induced cracks could promote the complexity of hydraulic fractures in marine shale gas reservoir. But the evolution process and forming mechanism has not been fully investigated. In this paper, Longmaxi marine shale were collected and immer
Externí odkaz:
https://doaj.org/article/6063f8f96d564837986477c0c5019bb9
Publikováno v:
Energies, Vol 15, Iss 20, p 7661 (2022)
In karstic-fractured carbonate reservoirs, most of the oil resources are hosted in vugs. Connecting as many vugs as possible by hydraulic fracturing is the key to achieving effective development. However, the interaction mechanism between vugs and hy
Externí odkaz:
https://doaj.org/article/430fc6f84e1a4c5682773c904e78a0ed
Publikováno v:
Energies, Vol 15, Iss 19, p 7340 (2022)
The cement sheath is an annular structure between casing and formation, which is crucial to the integrity of the wellbore system. Considering that the temperature and pressure environment is changing continuously with increasing burial depth, the mic
Externí odkaz:
https://doaj.org/article/27e4fd5e932945a098db12e78ca008c1
Publikováno v:
Energies, Vol 15, Iss 17, p 6472 (2022)
In a casing-cement sheath-formation system, the cement–formation interface is usually weakly cemented for the residual of drilling mud, in which a leakage path would easily form, threatening the safe operation of underground energy exploitation and
Externí odkaz:
https://doaj.org/article/721d2df0e4f240139a0478ef876a62b6