埃及OSOCO油田大井眼定向钻井技术的运用与探讨

Tuha Oil & Gas(2007)

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Abstract
埃及OSOCO油田地处埃及东部沙漠,毗邻红海岸边,气候条件恶劣,地质构造复杂,地层可钻性差,其目的层为海岸水平距离红海700m处,本应设计在海上作业,因节约成本需要,改为陆地定向作业。且在钻井过程中,垮、塌、缩径并存,给该井定向钻井施工带来了诸多困难。尤其是在200m处选用121/4的钻头大井眼内大段定向作业,对井壁的稳定性及定向轨迹的控制要求更高。
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Key words
Egypt,big hole,drilling technique,direction well
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