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- W2390184260 abstract "Zhuangxi burial hill, Shengli oilfield, is characterized by very complex structural conditions. There are a lot of difficulties during drilling deep wells in this area, such as low penetration rate, large formation dip to easily bring about hole deviation, wellbore quality not being well controlled, high-temperature and high-pressure formation to cause a difficult maintenance and processing for drilling fluid, low pressure to cause a lost circulation, crushed formation to bring about downhole complexity and accident, and complex completion technology. In this study, some countermeasures have been presented to overcome these difficulties, including optimized drilling bit, PDC drilling bit matching with both damping and supercharging equipment only if drilling Mesozoic in order to increase a penetration rate, both pendulum and off-axis assembly, wireless inclinometer, anti high-temperature and low solid polymer (a kind of drilling fluid system), near-balanced drilling technology, wear resistance connection equipped with casing, and cementing technology. The countermeasures have been applied to Zhuangxi burial hill and obtained a better result. Additionally, it is suggested that the safe coring technology used for both deep wells and complex formations should be strengthened, and some problems should also be solved, such as worse accuracy of wireless inclinometer and smaller scope of surveying data." @default.
- W2390184260 created "2016-06-24" @default.
- W2390184260 creator A5074068504 @default.
- W2390184260 date "2010-01-01" @default.
- W2390184260 modified "2023-09-25" @default.
- W2390184260 title "Difficulties and Countermeasures of Drilling Deep Wells in Zhuangxi Burial Hill, Shengli Oilfield" @default.
- W2390184260 hasPublicationYear "2010" @default.
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