Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Chengfang Shi"'
Autor:
Chengfang Shi, Laiwei Gao, Martin Baumgarten, Dongdong Wei, Zhipeng Xu, Wenping Wang, Di Wang
Publikováno v:
Magnetochemistry, Vol 9, Iss 7, p 178 (2023)
In contrast to diradical linked by π-conjugation, there have been only a limited number of studies reported for those linked by homoconjugation systems. Bis(nitronyl nitroxide) diradicals and monoradical connected by a core non-rigid triptycene unit
Externí odkaz:
https://doaj.org/article/5980f1201ae54364a49ad7afa9162167
Publikováno v:
Journal of Petroleum Exploration and Production Technology, Vol 10, Iss 4, Pp 1533-1538 (2019)
Abstract The formation of dominant channel has restricted the improvement in oil recovery in heterogeneous thick reservoirs greatly. How to effectively solve the problem has become a key issue in the development process. In this paper, firstly, the p
Externí odkaz:
https://doaj.org/article/105d1ff0acd648e69b387aa47c6bbc38
Publikováno v:
Petroleum Exploration and Development, Vol 44, Iss 6, Pp 1010-1015 (2017)
A function expression of the oil-water relative permeability ratio with normalized water saturation at high water saturation was proposed based on statistics of measured oil-water relative permeability data in oilfields. This expression fits the late
Externí odkaz:
https://doaj.org/article/640c752eafc94ca09ed9cc89180c57b0
Autor:
Youjing WANG, Xinmin SONG, Changbing TIAN, Chengfang SHI, Jiahong LI, Gang HUI, Jianfeng HOU, Chunning GAO, Xiaojun WANG, Ping LIU
Publikováno v:
Petroleum Exploration and Development, Vol 42, Iss 2, Pp 247-253 (2015)
Based on the dynamic characteristics of water-flooding in ultra-low permeability oilfields, the concept of dynamic fracture is proposed and its formation mechanism and impacts on oilfield development are discussed. Dynamic fractures refer to the new-
Externí odkaz:
https://doaj.org/article/3496c1f2992e4d1caade08d15182d05c
Publikováno v:
Petroleum Exploration and Development, Vol 39, Iss 3, Pp 362-370 (2012)
Based on analyzing dominant internal and external factors affecting water-oil displacement efficiency, the variation of oil displacement efficiency is studied by means of experimental and theoretical analyses. Internal factors include reservoir heter
Externí odkaz:
https://doaj.org/article/baf6ea8dd0914d648779101ac91071f0
Publikováno v:
RSC Advances. 13:8398-8408
The PCE was grafted onto manufactured sand to produce better dispersed particles, which can improve the performance of cement-based materials.
Publikováno v:
Magnetochemistry; Volume 9; Issue 7; Pages: 178
In contrast to diradical linked by π-conjugation, there have been only a limited number of studies reported for those linked by homoconjugation systems. Bis(nitronyl nitroxide) diradicals and monoradical connected by a core non-rigid triptycene unit
Publikováno v:
Journal of Petroleum Exploration and Production Technology, Vol 10, Iss 4, Pp 1533-1538 (2019)
The formation of dominant channel has restricted the improvement in oil recovery in heterogeneous thick reservoirs greatly. How to effectively solve the problem has become a key issue in the development process. In this paper, firstly, the plugging e
Publikováno v:
Journal of Energy Resources Technology. 143
Dynamic drainage volume is a useful measure in evaluating well completions, well spacing, and water-flood operations. It is usually approximated with a two-dimensional circle or a three-dimensional (3D) box that encloses a well using empirical correl
Publikováno v:
Medical Science Monitor : International Medical Journal of Experimental and Clinical Research
Background CD200 is reported to be involved in tumor progression and can serve as a prognostic marker in several cancers. The purpose of this study was to evaluate the prognostic significance of CD200 in cutaneous squamous cell carcinoma (CSCC). Mate