METHOD AND SYSTEM FOR DETECTING AT LEAST ONE OF AN INFLUX EVENT AND A LOSS EVENT DURING WELL DRILLING
    1.
    发明申请
    METHOD AND SYSTEM FOR DETECTING AT LEAST ONE OF AN INFLUX EVENT AND A LOSS EVENT DURING WELL DRILLING 审中-公开
    用于检测井下事件中的至少一个和井钻井中的损失事件的方法和系统

    公开(公告)号:WO2017035658A1

    公开(公告)日:2017-03-09

    申请号:PCT/CA2016/051040

    申请日:2016-09-01

    CPC classification number: E21B47/0003 E21B21/08 E21B47/10

    Abstract: Methods, systems, and techniques for detecting at least one of an influx event and a loss event during well drilling involve using one or both of errors between 1) estimated and measured pit volume, and 2) estimated and measured flow out, to identify or determine whether the influx or loss event is occurring, or to sound some other type of related alert. These determinations may be performed in a computationally efficient manner, such as by using one or both of a time and depth sensitive regression.

    Abstract translation: 在钻井期间检测流入事件和损失事件中的至少一个的方法,系统和技术包括使用1)估计和测量的坑容积之间的误差中的一个或两个,以及2)估计和测量的流出,以识别或 确定流入或丢失事件是否发生,或者发出某种其他类型的相关警报。 这些确定可以以计算上有效的方式进行,例如通过使用时间和深度敏感回归中的一个或两者。

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