Resman As

Gtl.fi Ag

Indusenza As

Empig As

Thomas Sperle

Øystein Mølstre

Anton Kulyakhtin

Christian Andresen

Erling Rytter

Fridtjof Nyhavn

Sigrid Eri

Fredrik Lund

Ole Alexander Eek

Evert Persson

Øyvind Borg

Lars Strommegjerde

The invention provides a method for quantitative downhole surveillance of a multi-phase flow, comprising at least two phases of either oil, water or gas, in a petroleum well. The method comprising providing at least one shunt chamber which comprises a flow phase separation section, a delay chamber, one or more outlet ports, at least one flow restrictor and a tracer release system with one or more tracers. The method comprises separating a shunt flow in the shunt chamber into a low-density flow phase and a high-density flow phase; releasing at least one tracer into the tracer delay chamber. The method also comprises passing the separated low-density flow phase and high-density flow phase through each flow restrictor and flushing out the low-density phase flow and the high-density phase flow with tracer from the shunt chamber through the outlet ports into the local flow inside the well. The method comprises monitoring the at least one tracer in the production flow at a detection point downstream of the outlet ports and measuring

Method and apparatus for quantitative multi-phase downhole surveillance

The invention is a method, a system, tools for use by the system, and an interpretation method for injecting and detecting tracers and conducting flow characterizing of a petroleum well. The method describes monitoring of travel time and slip velocity between two/three different phases (oil/water and possibly gas) in the well. The travel time and slip velocity are determined using an injection too for injection of an over pressurized injection of the partitioning tracers each of which would follow certain phase. The tracers are detected by an optical detection probe in the pipe. The slip velocity is obtained from the difference of travel time of two tracers which partition to two different phases.

Targeted tracer injection with online sensor

The invention provides a method of installing a sensor system in insulating material surrounding plant equipment and/or pipe work in a facility. The method comprises selecting a section of insulated plant equipment and/or pipework of the facility and installing a plurality of sensors in insulating material surrounding the plant equipment and/or pipe work in the section according to an installation plan. The plurality of sensors is installed by transmitting and/or receiving at least one unique identifier to and/or from each sensor of the plurality of sensors using an electronic apparatus and recording at least one installation property of each of the plurality of sensors using the unique identifiers. The method also comprises defining a group of installed sensors using the transmitted and/or received unique identifiers and associating the group of installed sensors with the section of insulated plant equipment and/or pipework.

Methods for installing apparatus and systems for monitoring the environment in an insulating material surrounding plant equipment and/or pipe work

The invention provides a tracer release system () and method of use. The tracer release comprises at least one tracer chamber for connection to a production tubing (). The at least one tracer chamber comprising at least one inlet (), at least one outlet (), a fluid volume () and a tracer material () located in the fluid volume. The tracer chamber also comprises a valve () configured to selectively open and/or close the at least one outlet.

Tracer release system and method of use

The invention provides a method of monitoring influx of a fluid to a hydrocarbon producing well comprising providing at least one tracer release apparatus () in a hydrocarbon producing well at an influx location (-). The at least one tracer release apparatus comprises a fluid volume () and a tracer material () located in the fluid volume. The method comprises shutting in the tracer release apparatus during production to increase the concentration of tracer molecules in the fluid volume; releasing the tracer molecules from the tracer release apparatus into the production flow and detecting the presence of tracer downstream of the influx location.

Tracer release system and method of detection

A method for quantitative downhole surveillance of a multi-phase flow, comprising at least two phases of either oil, water or gas, in a petroleum well. The method comprising providing at least one shunt chamber () which comprises a flow phase separation section (), a delay chamber (), one or more outlet ports (), at least one flow restrictor () and a tracer release system () with one or more tracers. The method comprises separating a shunt flow in the shunt chamber into a low-density flow phase and a high-density flow phase; releasing at least one tracer into the tracer delay chamber, passing the separated flow phases through each flow restrictor and flushing out the phase flows with tracer into the local flow inside the well. The method comprises monitoring the tracers in the production flow and measuring the concentration of the one or more tracers.

A method, a system, tools for use by the system, and an interpretation method for injecting and detecting tracers and conducting flow characterizing of a petroleum well are disclosed. The method describes monitoring of travel time and slip velocity between two/three different phases (oil/water and possibly gas) in the well. The travel time and slip velocity are determined using an injection too for injection of an over pressurized injection of the partitioning tracers each of which would follow certain phase. The tracers are detected by an optical detection probe in the pipe. The slip velocity is obtained from the difference of travel time of two tracers which partition to two different phases.

A tracer method for online monitoring of downhole zonal contributions of oil, condensate, gas, or water mass flux of a production flow in a petroleum production well, includes arranging distinct tracer carrier systems, each in different production zones in said well, the distinct tracer carrier systems arranged for releasing unique tracers to a fluid of the production zones, the tracers having affinity after downhole release to separate phases of oil, condensate, gas, or water, using an online tracer monitor, conducting sampling of tracer concentrations for at least one of the tracers in said zonal mass fluxes at a high sampling rate, based on said concentration values, estimating the corresponding zonal tracer fluxes for each delivery data point and using said one or more estimated zonal mass fluxes to control one or more Petro Technical processes.

Online tracer monitoring and tracer meter

A method, a system, tools for use by the system, and an interpretation method for injecting and detecting tracers and conducting flow characterizing of a petroleum well are provided. The method describes monitoring of travel time and slip velocity between two/three different phases (oil/water and possibly gas) in the well. The travel time and slip velocity are determined using an injection tool for injection of an over pressurized injection, thus simultaneous injection to all phases, of the partitioning tracers each of which would follow certain phase. The tracers are detected by a tracer detector downstream the injector. The slip velocity is obtained from the difference of travel time of two tracers which partition to two different phases.

Real time radioactive

A process for the preparation of an F-T catalyst in which the presence of alkaline earth metals is minimized in the support itself and in the processing conditions, in order to provide a catalyst with an alkaline earth metal content of less than 2000 ppm.

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Ranheim, Norway

Thomas Sperle