Key Points in Corrosion Control Engineering Design for Pipeline in Casing Crossing Section

WU Lin-hu; XU Yong-bo; FANG Yong; LI Ning

doi:10.11973/fsyfh-201702011

Corrosion & Protection > 2017 > 38(2): 138-141. > DOI: 10.11973/fsyfh-201702011

WU Lin-hu, XU Yong-bo, FANG Yong, LI Ning. Key Points in Corrosion Control Engineering Design for Pipeline in Casing Crossing Section[J]. Corrosion & Protection, 2017, 38(2): 138-141. DOI: 10.11973/fsyfh-201702011

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Key Points in Corrosion Control Engineering Design for Pipeline in Casing Crossing Section

1. China Petroleum Engineering & Construction Corporation, Qinghai Branch, Dunhuang 736202, China;
2. College of Petroleum Engineering, Xi'an Shiyou University, Xi'an 710065, China;
3. The Third Gas Plant, Qinhai Oilfield Co., Delinha 816499, China;
4. The Fourth Oil Plant, Qinhai Oilfield Co., Delinha 816499, China

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Received Date: October 12, 2015

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Corrosion in casing crossing section of buried steel pipe is more serious than in other parts. The influence of steel casing on the cathodic protection system and its causes are discussed. And the limitation for the method of installing sacrificial anode cathode in casing, which is widely used, is analyzed. The feasibility of cancelling casing and the key points in corrosion control engineering design for pipeline in casing crossing section are discussed as well.
- casing crossing,
- sacrificial anode,
- cathodic protection

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