Lihu Cao1,2, Jinsheng Sun1,*, Bo Zhang3,*, Nu Lu4, Yuqiang Xu1
Energy Engineering, Vol.120, No.1, pp. 35-48, 2023, DOI:10.32604/ee.2022.022867
- 27 October 2022
Abstract In gas storage or high-pressure gas wells, annular pressure is an unavoidable threat to safe, long-term resource
production. The more complex situation, however, is multiple annular pressure, which means annular pressure
happens in not only one annulus but two or more. Such a situation brings serious challenges to the identification of
well integrity. However, few researches analyze the phenomenon of multiple annular pressure. Therefore, this paper
studies the mechanism of multi-annular pressure to provide a foundation for its prevention and diagnosis. Firstly,
the multi-annular pressure is classified according to the mechanism and field data. Then… More >
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