An Innovative Methodology for Designing Cement-Sheath Integrity Exposed to Steam Stimulation

2010 ◽  
Vol 25 (01) ◽  
pp. 58-69 ◽  
Author(s):  
Andre Garnier ◽  
Jeremie Saint-Marc ◽  
Axel-Pierre Bois ◽  
Yvan Kermanac'h
2008 ◽  
Author(s):  
Andre Garnier ◽  
Jeremie Saint-Marc ◽  
Axel-Pierre Bois ◽  
Yvan Kermanac'h

2017 ◽  
Vol 9 (2) ◽  
pp. 168781401668858 ◽  
Author(s):  
Yong Chen ◽  
Tao Liang ◽  
Xu Peng ◽  
Hao Yu

Heavy oil is an important oil resource. The main development method is thermal exploitation—steam stimulation. Drastic variation in temperature will result in thermally induced micro-gaps in the first interface during steam stimulation. The existence of micro-gaps will cause steam channeling in the hole and difficulty in engineering logging interpretation. According to the stress of casing string of thermal production wells and thermal injection model, the mechanical model of casing string of thermal production wells is divided into four intervals for further analysis, including the wellhead movement extension interval, the extension and compression movement interval between low-temperature zones, the packer movement interval, and the extension and compression movement interval between perforation sections. For different casing string intervals, two types of mathematical models of first interface micro-gap width are established. In order to comprehensively evaluate the micro-gaps, the mathematical model comprehensively evaluating cement sheath micro-gaps is established through superposition and geometric mean of two models. The models can be used to calculate the first interface micro-gap width of different intervals. In addition, the tri-strata axial symmetric finite element model of first interface with micro-gap is established, and the variation in temperature field, stress field, and width of micro-gap interval of wellbore is analyzed, which provides the theoretical basis for evaluation of micro-gaps.


2020 ◽  
Vol 35 (3) ◽  
pp. 31-51
Author(s):  
Yoram Ida ◽  
Amir Hefetz ◽  
Assaf Meydani ◽  
Gila Menahem ◽  
Elad Cohen

What innovative policy tools can be introduced so that the provision of local services will mitigate inequality among residents of different localities? Based on the ‘new localism’ approach, this article examines one such tool—a mandatory national standard for services provided by local authorities (a ‘service basket’)—and suggests that the implementation process should consider local variation and autonomy. The novelty of our approach lies in including both objective and normative considerations in the methodological instrument that we developed to capture these two dimensions. This innovative methodology also enabled us to estimate existing service gaps among local authorities and the burdens some will face upon instituting a mandatory service basket.


2021 ◽  
Vol 13 (13) ◽  
pp. 7150
Author(s):  
Silvia Cerisola ◽  
Elisa Panzera

Following the hype that has been given to culture and creativity as triggers and enhancers of local economic performance in the last 20 years, this work originally contributes to the literature with the objective of assessing the impact of cultural and creative cities (CCCs) on the economic output of their regions. In this sense, the cultural and creative character of cities is considered a strategic strength and opportunity that can spillover, favoring the economic system of the entire regions in which the cities are located. Through an innovative methodology that exploits a regional production function estimated by a panel fixed effects model, the effect of cities’ cultural vibrancy and creative economy on the output of their regions is econometrically explored. The data source is the Cultural and Creative Cities Monitor (CCCM) provided by the JRC, which also allows the investigation of the possible role played by the enabling environment in catalyzing the action of cultural vibrancy and creative economy. The results are thoroughly examined: especially through cultural vibrancy, CCCs strategically support the output of their region. This is particularly the case when local context conditions—such as human capital and education, openness, tolerance and trust, and quality of governance—catalyze their effect. Overall, CCCs contribute to feeding a long-term self-supporting system, interpreted according to a holistic conception that includes economic, social, cultural, and environmental domains.


2020 ◽  
Vol 7 (6) ◽  
pp. 671-679
Author(s):  
Yuanhua Lin ◽  
Kuanhai Deng ◽  
Hao Yi ◽  
Dezhi Zeng ◽  
Liang Tang ◽  
...  

Author(s):  
Cristiana Gonçalves ◽  
Joana Margarida Gomes ◽  
F. Raquel Maia ◽  
Hajer Radhouani ◽  
Simone Dos Santos Silva ◽  
...  

Sucrose acetate isobutyrate (SAIB) is a highly viscous hydrogel and presents many challenges for processing when its application in tissue engineering is envisioned. Herein, is proposed an innovative methodology by...


2016 ◽  
Author(s):  
Mohammed Al Raqmi ◽  
Hassan Al Saadi ◽  
Muhammad Mirza ◽  
Shihab Said Al Bahlouli ◽  
M. Aidil Arham ◽  
...  

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