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新疆塔里木盆地英买力地区是西气东输工程重点供气区之一。由于同一裸眼井段内存在两套差异很大的压力系统,钻井过程中经常发生井漏,给盐膏层井段钻井、下入9-5/8“+10-3/4”复合套管、固井施工带来很大安全。本文详细阐述了该地区盐下井井漏特点、井漏原因、堵漏难点,提出了应用桥堵工艺解决该地区普遍存在的井漏问题,并对承压堵漏施工中应注意的技术问题提出建议。
The Yingli area in the Tarim Basin in Xinjiang is one of the key gas supply areas for the project. Due to the existence of two different pressure systems in the same open-hole section, the well often leaks during the drilling process, and the section of the salt-coated bed is drilled into a composite of 9-5 / 8 “+ 10-3 / 4” Casing, cementing construction brings great safety. This paper elaborates on the characteristics of well leakage, reasons of well leakage and difficulty of plugging in the salt well in this area, and puts forward the application of bridge plugging technology to solve the common problem of well leakage in this area and puts forward the technical problems that should be noticed in the construction of pressure plugging Suggest.