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首页> 外文会议>Offshore Technology Conference;ExxonMobil;Aseeder;Schlumberger >We're Stuck: Efficient Casing Removal for Well Abandonment Applications
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We're Stuck: Efficient Casing Removal for Well Abandonment Applications

机译：我们被卡住了：高效拆卸井筒的套管

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摘要

Well abandonment operations represent pure cost to the operator without return on their expenditure.rnHowever, to manage future liability, these activities are critically important. Performing them correctlyrninvolves detailed planning. Good practice places a permanent barrier across the wellbore in competent caprnrock and embeds all tubulars in the cement. Herein lies the main challenge for well abandonment; annularrnisolation is sometimes compromised or wasn't there from the start (e.g., subsea wells). Addressing thesernannular isolation issues results in extra steps in the well abandonment process, translating into extra timernand money for the operator.rnThis paper will discuss field-proven, cost-effective solutions for casing removal including reducing thernsurface footprint or providing a single-trip solution that lowers the overall cost of operation.rnMultiple case histories will highlight different challenges, solved by novel ideas and a combination ofrnsurface systems and downhole equipment.
机译：完井作业对运营商而言是纯成本，而没有支出回报。rn但是，对于管理未来责任，这些活动至关重要。正确执行它们会涉及详细的计划。优良作法是在合格的盖层岩层中在井眼上设置永久性屏障，并将所有管状物嵌入水泥中。这就是弃井的主要挑战。环形隔离有时会受到损害或从一开始就没有出现（例如，海底井）。解决齿圈隔离问题会导致放弃试井过程中的额外步骤，从而为操作员带来额外的时间和金钱。降低了总体运营成本。多个案例历史将通过新颖的思想以及地表系统和井下设备的组合解决各种挑战。

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