Research on the Suitability of High-Density Leakage Plugging in Offshore High Temperature and High Pressure Wells
Yan-jun Li,
Shu-jie Liu,
Jin Yang
et al.
Abstract:A large number of fractured formations are developed in the high-temperature and high-pressure formations of the Yingqiong Basin in the South China Sea. During drilling, the risk of lost circulation is ex-tremely high, which will cause complex downhole accidents and seri-ously affect the drilling speed.In order to realize safe and efficient plugging of HPHT Wells, the following studies are carried out in this paper: Firstly, the characteristics of leakage, types of leakage and plug-ging and prevention mechanis… Show more
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