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《Petroleum Exploration and Development》 2001-02
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The combined action mechanism of the pressure and pressure differential in casing damage.

LIU Jian-zhong; et al. (Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, P. R. China).  
The central unit of Saertu oil reservoir in Daqing oil field is an area of frequent casing damage, the casing damage mainly occurs near the datum bed, and group by group. Through the stress measured at the field site and core tested in laboratory and compared with the stress, pressure and pressure differential of the formations where casing damage occurred, it is concluded that: the casing damage occurred in recent years mainly in the strong pressure differential areas, which is mainly caused by the combination of stress, pressure and pressure differential of neighbor blocks. When the formation pressure is longer than the original critical pressure, casing damage still occurred even without pressure differential action. While the formation pressure is smaller than the original critical pressure casing damage can be induced when there exists pressure differential action. To avoid the occurrence of the casing damage it has to stabilize the formation pressure to control the water production as well as to ensure the injection-production balance so as to prevent the strong pressure differential between neighbouring blocks. This theory has been applied to Daqing oil field and obvious achievement has been obtained in casing damage treatment overthere.
【CateGory Index】: TE358
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【References】
Chinese Journal Full-text Database 1 Hits
1 PENG Xin-ming(The only author,Oil Production Plant of ZhongyuanOilfield Company,SINOPEC,Henan,457171);Mechanical Analysis in Casing Damage Caused by Sang Production in Producers[J];Inner Mongolia Petrochemical Industry;2011-04
China Proceedings of conference Full-text Database 1 Hits
1 ZHOU Yan-jun~(1,2),JIA Jiang-hong~2 (1.College of Petroleum Engineering,China University of Petroleum(East China),Dongying 257061,China; 2.Shengli Drilling Technology Research Institute,Dongying 257017,China);New Method for Predicting of Casing Damage in Water and Oil Well[A];[C];2009
【Co-references】
Chinese Journal Full-text Database 1 Hits
1 by Yang Liangjie,Wang Ximao,Cui Zhandong,Sun Shudong,Chen Weijun,(Jidong Oilfield Company);CURRENT AND COMPREHENSIVE REGULATION MEASURES OF CASING DAMAGE IN JIDONG OILFIELD[J];Oil Drilling & Production Technology;2003-02
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Chinese Journal Full-text Database 5 Hits
1 ZHAO Hong-shan,GUAN Zhi-chuan(College of Petroleum Engineering in China University of Petroleum, Dongying 257061,Shandong Province,China);Mechanical analysis of production casing damage due to sand production[J];Journal of China University of Petroleum(Edition of Natural Science);2006-05
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China Proceedings of conference Full-text Database 1 Hits
1 ZHOU Yan-jun~(1,2),JIA Jiang-hong~2 (1.College of Petroleum Engineering,China University of Petroleum(East China),Dongying 257061,China; 2.Shengli Drilling Technology Research Institute,Dongying 257017,China);New Method for Predicting of Casing Damage in Water and Oil Well[A];[C];2009
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