摘要
根据气藏开发的风险及难点,探讨了井下套管封井器在气藏开发的应用优势,并从气藏保护、作业安全等方面,对欠平衡起下管柱作业期间,井下套管封井器在关闭前后,井筒内各压力变化、天然气运移规律进行了理论分析,并总结出相应的技术方法;列举了井下套管封井器在部分井次的应用实例,并提出了建议。
According to the risk and difficulty in the development of gas reservoirs,discussions focus on the application advantages of downhole casing blowout preventers in the development of gas reservoirs.Meanwhile,from the perspectives of gas reservoir protection and operation safety,the theoretical analysis is carried out about different pressure changes in the well bore and the transportation law of natural gas at the moment around the closing of downhole casing blowout preventers during the operation period of underbalance round trip,together with the summary of corresponding technical methods.In addition,some suggestions are put forward based on the examples of applying the downhole casing blowout preventer to some wells.
出处
《石油工业技术监督》
2011年第6期38-41,58,共5页
Technology Supervision in Petroleum Industry
关键词
井下套管封井器
气藏开发
安全作业
downhole casing blowout preventers
development of gas reservoir
safety operation
