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perforation 2

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fistula 1

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Long channel delayed ignition perforation technology in Puguang Gas Field

Zhao Kailiang,Li Hong,Wu Yongqing,Wang Peiyu

Strategic Study of CAE 2010, Volume 12, Issue 10, Pages 108-112

Abstract: These features brings risks to perforation and operation safety.This paper presents the choice of perforation technology, defination of perforating gun and perforationof ignition and detonation propagation reliability related to technical problems and dificulties on perforationThe perforation effectiveness analysis shows such technical designs can satisfy the requirement of acidEnhancement type fixed bullet system can meet the request of reliable detonation of long-channel perforation

Keywords： Puguang Gas Field hydrogen sulfide long channel perforation perforation string

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Gastrointestinal damage caused by swallowing multiple magnets

Shiqi Liu, Jianhui Li, Yi Lv

Frontiers of Medicine 2012, Volume 6, Issue 3, Pages 280-287 doi: 10.1007/s11684-012-0207-5

Abstract: document delivery, using search terms “magnet ingestion, ” “fistula, ” and “perforationVarious gastrointestinal damages such as necrosis and intestinal perforation or fistula were encountered

Keywords： magnet ingestion fistula perforation

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The Application of Modularization Perforating Technology in Oriented Perforation for Deviated Well

Zheng Changjian,Guo Jingxue,Jiang Xiaoyan,Wang Wenchang

Strategic Study of CAE 2012, Volume 14, Issue 4, Pages 58-61

Abstract: Perforating gun system adopts the modular design to implement oriented perforation by a special technologytechnological principle of the modularization perforating technology and the application effect of oriented perforation

Keywords： system structure technological principle application