2010, Volume 12, Issue 10
Strategic Study of CAE >> 2010, Volume 12, Issue 10
The optimization techniques of well structure design and tubing selection for Puguang Gas Field
The Headquarters of Sichuan-to-East Gas Transmission Project, SINOPEC, Dazhou, Sichuan 635000, China
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Abstract
Puguang Gas Field is the largest high acid marine strata mono-block gas field found in China so far. As the geologic structure is extremely complex, the target stratum is ultra deep, the drilling is rather difficult and high risk, facing so many world-classic engineering problems as high deviation, cavy, blowout, leakage, hard formation, poison, and etc. This paper analyzes the complicated geological characteristics in Puguang gas field, proposes the optimization idea and technique of well structure design and tubing selection, coming up with four casing program optimization schemes according to the knowledge and demand of development, and introduces the application effect and corresponding analysis. The optimization design for well structure achieved to seal off necessary sections of stratum by the simplest casing program, provided the maximum wellbore size,to ensure the cementing quality , meet with the high productivity requirement, and reach the final goal of developing the gas field in a safe and economy manner.
Keywords
Puguang Gas Field ; drilling engineering ; well structure ; design optimization ; tubing optimization
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References
[ 1 ] AQ2012 -2007.石油天然气安全规程[S].北京:煤炭工业出版社
[ 2 ] Q /SH 0033 -2009.川东北含硫化氢天然气井钻井与试气作业工程 安全技术规范[S].北京:中国石化出版社
[ 3 ] Q /SH 0015 -2006.含硫化氢含二氧化碳气井油套管选用技术要求 [S].北京:中国石化出版社
[ 4 ] 孟 伟,杨玉坤,王宝新.钻井配套技术在川东北的应用与 实践 [M].北京:地质出版社,2007
[ 5 ] 杨玉坤.川东北地区深井井身结构优化设计[ J].石油钻探技术, 2008,36(3) :33 -36 link1
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