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微流量控制法是一种新的控压钻井技术,是威德福公司精细钻井技术( Secure Drilling) 的核心,可以提高大多数井况下的钻井效率,不管是简单井,还是高压井、窄密度窗口井、海上井或其他具挑战性的井,都可通过该方法自动探测井涌、控制井涌,避免井控事件,明显提高作业安全性。微流量控制技术利用专利运算法则,实时识别、测量井下出现的微量溢流和漏失,并采用非常精确的流量计测量回流情况,流量计安装在控压钻井节流的同一直线上,能快速探测到流体漏失或增加,并自动反应实时探测到的漏失量或增加量。该系统还可区别膨胀/收缩与严重的流体溢流/漏失,确定是否存在其他潜在危害,如节流堵塞、喷嘴堵塞或地面刺漏等,帮助作业人员监控泵效等。
Microfluidics is a new controlled-pressure drilling technology that is at the heart of Weatherford’s Secure Drilling, which increases the efficiency of drilling in most conditions, whether it is a simple well or a high-pressure well. Density window wells, offshore wells or other challenging wells can automatically detect wells, control wells and avoid well control events and significantly improve operational safety through this method. Microfluidic control technology uses patented algorithms to identify and measure the micro-spillover and leakage in the underground in real time. The flowmeter is used to measure the return flow. The flowmeter is installed on the same line of the pressure-controlled drilling and throttling, which can quickly detect To fluid loss or increase, and automatically detects the amount of real-time detection of leakage or increase. The system also distinguishes expansion / contraction and severe fluid overflow / leakage and determines if there are other potential hazards such as throttling, nozzle clogging or floor puncture, helping operators monitor pump efficiency and more.