公开(公告)号：US06799634B2

公开(公告)日：2004-10-05

申请号：US10296880

申请日：2002-11-27

申请人： Floor Andre Hartog ,  Ulfert Cornelis Klomp ,  Jean Eric Negre ,  Douwe Johannes Runia ,  Yves Veran

发明人： Floor Andre Hartog ,  Ulfert Cornelis Klomp ,  Jean Eric Negre ,  Douwe Johannes Runia ,  Yves Veran

IPC分类号： E21B4700

CPC分类号： E21B27/02 ,  E21B47/1015

摘要： A tracer release method for monitoring fluid flow in a well utilizes a deformable container having a liquid tracer material which container has an outlet which debouches into the neck portion of a venturi in a well conduit. The container has a wall which is at least partly exposed to the fluid pressure at the relatively wide in- or outlet of the venturi, so that an amount of tracer is injected continuously or discontinuously into the well effluents which is proportional to the pressure difference p across the venturi, which pressure difference p is indicative of the fluid density &rgr; and squared fluid velocity &ugr;.

摘要翻译： 用于监测井中的流体流动的示踪剂释放方法利用具有液体示踪剂材料的可变形容器，该容器具有出口，其在井管道中被卷入文丘里管的颈部。 容器具有至少部分地暴露于文丘里管相对宽的入口或出口处的流体压力的壁，使得一定量的示踪剂连续或不连续地注入到井流出物中，其与压力差p成比例 跨越文氏管，其压力差p表示流体密度rho和平方流体速度上限。