2019
DOI: 10.2118/197579-ms
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Zhenzhong Cai, Hui Zhang, Fang Yuan, Guoqing Yin, Haiying Wang

Abstract: Abstract The Kuqa depression located in northern Tarim Basin is the second largest natural-gas field in China, however, drilling engineering is faced with extremely complex geological conditions, such as complex structural movement history, complex formation conditions (huge thick gypsum salt rock, and different thickness of alternating sand/shale sequences and conglomerate), abnormal high pore pressure systems and strong anisotropy in situ stress. These complex geologic conditions result in sev…

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