公开(公告)号：US20160201454A1

公开(公告)日：2016-07-14

申请号：US14915167

申请日：2013-08-30

Applicant: RESMAN AS

Inventor： Fridtjof NYHAVN ,  Christian ANDRESEN ,  Gaute OFTEDAL

IPC: E21B47/10 ,  E21B47/06 ,  E21B49/08 ,  E21B27/00

CPC classification number: E21B43/08 ,  E21B27/00 ,  E21B27/02 ,  E21B47/06 ,  E21B47/1015 ,  E21B49/086

Abstract: A petroleum well tracer release flow shunt chamber in an annulus space about a base pipe and method of estimating one or more pressure differences or gradients, wherein the flow shunt chamber extending generally axial-parallel with the base pipe, and provided with a shunt flow passage for holding a shunt chamber fluid, and including a tracer system exposed to and arranged for releasing unique tracer molecules at a generally even release time rate to the shunt chamber fluid, a first inlet aperture for receiving a first fluid, a second outlet aperture for releasing the shunt chamber fluid to a fluid, a flow restrictor allowing a pressure gradient between the inlet and outlet apertures driving the shunt chamber fluid out via the flow restrictor.

Abstract translation: 在围绕基管的环空间中的石油井示踪剂释放流分流室和估计一个或多个压力差或梯度的方法，其中所述流量分流室大体上与所述基管轴向平行延伸，并且设置有分流流动通道 用于保持分流室流体，并且包括暴露于并被布置成用于以均匀释放时间速率释放独特示踪剂分子的示踪剂系统到分流室流体，用于接收第一流体的第一入口孔，用于释放的第二出口孔 将流体分流到液体，允许入口孔和出口孔之间的压力梯度通过限流器驱动分流室流体流出的流量限制器。

公开(公告)号：US20180038223A1

公开(公告)日：2018-02-08

申请号：US15553901

申请日：2015-02-27

Applicant: RESMAN AS

Inventor： Fridtjof NYHAVN ,  Christian ANDRESEN ,  Gaute OFTEDAL

IPC: E21B47/10 ,  E21B27/00 ,  E21B21/08

Abstract: A petroleum well tracer release flow shunt chamber in an annulus space about a base pipe and method of estimating one or more pressure differences or gradients, wherein the flow shunt chamber extending generally axial-parallel with the base pipe, and provided with a shunt flow passage for holding a shunt chamber fluid, and including: a tracer carrying system designed to release shots of tracer molecules or particles according to some control to the shunt chamber fluid, a first inlet aperture for receiving a first fluid, a second outlet aperture for releasing the shunt chamber fluid to a fluid, a flow restrictor nozzle unit allowing a pressure gradient between the inlet and outlet apertures driving the shunt chamber fluid out via the flow restrictor nozzle unit, topside recording the tracer transient response from the shunt chamber after tracer shots, extracting pressure gradients from recoded tracer transient response and tracer transient model, deriving wellbore inflow profile information from pressure gradients.