由于一些陆上碳酸气田的储层压力下降，该运营商在其陆上 Asab 和 Bab 油田启动了三井欠平衡连续油管钻井 (UBCTD) 活动，其中两口井将在 Asab 钻探，一口井将在 Bab 钻探。由于硫化氢 (H 2 S) 含量较高，据作者称，这是在中东成功实施的第一个闭环系统。完整的论文讨论了这三口井钻探过程中涉及的设计和规划、遇到的操作挑战以及所采用的缓解措施。
运营商的主要目标之一是增加产量，同时安全地维持或最大限度地降低运营成本。实现这些目标的一种方法是使用连续油管 (CT) 在欠平衡模式下钻探地层。
Asab 和 Bab 油田位于阿布扎比西南部。
Because of declining reservoir pressures in some of its onshore gas carbonate fields, the operator initiated a three-well underbalanced coiled-tubing drilling (UBCTD) campaign in its onshore Asab and Bab fields, with two wells to be drilled in Asab and one in Bab. Because of the high hydrogen sulfide (H2S) content, a closed-loop system—the first one successfully implemented in the Middle East, according to the authors—was implemented. The complete paper discusses the design and planning involved in the drilling of these three wells, the operational challenges encountered, and mitigations used.
One of the operator’s main objectives was to increase production while safely maintaining or minimizing operating costs. One method of achieving these goals is the use of coiled tubing (CT) to drill formations in underbalanced mode.
The Asab and Bab fields are southwest of Abu Dhabi.
