Patents Assigned to Resman AS
  • Patent number: 12264579
    Abstract: The invention provides a tracer release system (100) and method of use. The tracer release comprises at least one tracer chamber for connection to a production tubing (12). The at least one tracer chamber comprising at least one inlet (118), at least one outlet (120), a fluid volume (122) and a tracer material (124) located in the fluid volume. The tracer chamber also comprises a valve (126) configured to selectively open and/or close the at least one outlet.
    Type: Grant
    Filed: May 23, 2020
    Date of Patent: April 1, 2025
    Assignee: Resman AS
    Inventors: Thomas Sperle, Øystein Mølstre
  • Patent number: 12110787
    Abstract: A method and system estimates an influx profile for at least one well fluid from a reservoir to a producing petroleum well with two or more influx zones or influx locations to a production flow. The method includes installing at least one tracer source with distinct tracer materials in known levels of the well and transporting tracer molecules from the tracer sources in the well into the reservoir. The method also includes inducing production flow in the well from the reservoir into the well, collecting samples downstream of the two or more influx zones at known sampling times and analyzing samples for concentration and type of tracer material from said possible tracer sources. The contribution of flow from the two or more influx zones may be calculated based on the analyzed tracer concentrations.
    Type: Grant
    Filed: September 23, 2021
    Date of Patent: October 8, 2024
    Assignee: RESMAN AS
    Inventor: Olaf Kristoffer Huseby
  • Patent number: 12018561
    Abstract: The invention provides a method of monitoring influx of a fluid to a hydrocarbon producing well comprising providing at least one tracer release apparatus (100) in a hydrocarbon producing well at an influx location (14a-14d). The at least one tracer release apparatus comprises a fluid volume (121) and a tracer material (124) 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.
    Type: Grant
    Filed: May 23, 2020
    Date of Patent: June 25, 2024
    Assignee: Resman AS
    Inventors: Thomas Sperle, Øystein Mølstre
  • Patent number: 12012848
    Abstract: 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 (100) which comprises a flow phase separation section (130), a delay chamber (140), one or more outlet ports (122), at least one flow restrictor (126a, 128b) and a tracer release system (124) 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.
    Type: Grant
    Filed: May 23, 2020
    Date of Patent: June 18, 2024
    Assignee: Resman AS
    Inventors: Thomas Sperle, Øystein Mølstre
  • Patent number: 11674382
    Abstract: A method of estimating an influx profile for at least one well fluid to a producing petroleum well with two or more influx zones or influx locations to a production flow, wherein the well comprises tracer sources with distinct tracer materials in known levels of the well, at least one of said tracer sources arranged downstream and exposed to the fluids in at least one of said influx zones, wherein each said tracer source has an even release rate to said well fluid, characterised in that one or more of the tracer sources is provided in one or more delay chambers for ventilating out fluid with leaked tracer material at a time constant which is significantly longer than the diffusion rate from the tracer source to the well fluid, wherein the method further comprises: providing samples, the samples collected from the production flow at a location downstream of the tracer sources during a time period in which the tracer transient is detectable at the downstream location, analysing said samples for concentration an
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: June 13, 2023
    Assignee: RESMAN AS
    Inventor: Fridtjof Nyhavn
  • Publication number: 20220389811
    Abstract: 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.
    Type: Application
    Filed: August 12, 2022
    Publication date: December 8, 2022
    Applicant: Resman AS
    Inventors: Anton KULYAKHTIN, Christian ANDRESEN, Thomas SPERLE
  • Patent number: 11492897
    Abstract: 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.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: November 8, 2022
    Assignee: RESMAN AS
    Inventors: Anton Kulyakhtin, Christian Andresen, Thomas Sperle
  • Publication number: 20210199003
    Abstract: A method of estimating an influx profile for at least one well fluid to a producing petroleum well with two or more influx zones or influx locations to a production flow, wherein the well comprises tracer sources with distinct tracer materials in known levels of the well, at least one of said tracer sources arranged downstream and exposed to the fluids in at least one of said influx zones, wherein each said tracer source has an even release rate to said well fluid, characterised in that one or more of the tracer sources is provided in one or more delay chambers for ventilating out fluid with leaked tracer material at a time constant which is significantly longer than the diffusion rate from the tracer source to the well fluid, wherein the method further comprises: providing samples, the samples collected from the production flow at a location downstream of the tracer sources during a time period in which the tracer transient is detectable at the downstream location, analysing said samples for concentration an
    Type: Application
    Filed: March 12, 2021
    Publication date: July 1, 2021
    Applicant: RESMAN AS
    Inventor: Fridtjof NYHAVN
  • Patent number: 10961842
    Abstract: A method of estimating an influx profile for at least one well fluid to a producing petroleum well with two or more influx zones or influx locations to a production flow, wherein the well comprises tracer sources with distinct tracer materials in known levels of the well, at least one of said tracer sources arranged downstream and exposed to the fluids in at least one of said influx zones, wherein each said tracer source has an even release rate to said well fluid, characterised in that one or more of the tracer sources is provided in one or more delay chambers for ventilating out fluid with leaked tracer material at a time constant which is significantly longer than the diffusion rate from the tracer source to the well fluid, wherein the method further comprises: providing samples, the samples collected from the production flow at a location downstream of the tracer sources during a time period in which the tracer transient is detectable at the downstream location, analysing said samples for concentration an
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: March 30, 2021
    Assignee: RESMAN AS
    Inventor: Fridtjof Nyhavn
  • Patent number: 10895148
    Abstract: 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.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: January 19, 2021
    Assignee: RESMAN AS
    Inventors: Fridtjof Nyhavn, Thomas Sperle
  • Patent number: 10871067
    Abstract: A method of estimating an influx profile for at least one well fluid to a producing petroleum well with two or more influx zones or influx locations to a production flow, wherein the well comprises tracer sources with distinct tracer materials in known levels of the well, at least one of said tracer sources arranged downstream and exposed to the fluids in at least one of said influx zones, wherein each said tracer source has an even release rate to said well fluid, characterised in that one or more of the tracer sources is provided in one or more delay chambers for ventilating out fluid with leaked tracer material at a time constant which is significantly longer than the diffusion rate from the tracer source to the well fluid, wherein the method further comprises: providing samples, the samples collected from the production flow at a location downstream of the tracer sources during a time period in which the tracer transient is detectable at the downstream location, analysing said samples for concentration an
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: December 22, 2020
    Assignee: RESMAN AS
    Inventor: Fridtjof Nyhavn
  • Patent number: 10865637
    Abstract: 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.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: December 15, 2020
    Assignee: RESMAN AS
    Inventors: Anton Kulyakhtin, Christian Andresen, Thomas Sperle
  • Publication number: 20200270986
    Abstract: A method of estimating an influx profile for at least one well fluid to a producing petroleum well with two or more influx zones or influx locations to a production flow, wherein the well comprises tracer sources with distinct tracer materials in known levels of the well, at least one of said tracer sources arranged downstream and exposed to the fluids in at least one of said influx zones, wherein each said tracer source has an even release rate to said well fluid, characterised in that one or more of the tracer sources is provided in one or more delay chambers for ventilating out fluid with leaked tracer material at a time constant which is significantly longer than the diffusion rate from the tracer source to the well fluid, wherein the method further comprises: providing samples, the samples collected from the production flow at a location downstream of the tracer sources during a time period in which the tracer transient is detectable at the downstream location, analysing said samples for concentration an
    Type: Application
    Filed: May 11, 2020
    Publication date: August 27, 2020
    Applicant: RESMAN AS
    Inventor: Fridtjof NYHAVN
  • Publication number: 20200270985
    Abstract: A method of estimating an influx profile for at least one well fluid to a producing petroleum well with two or more influx zones or influx locations to a production flow, wherein the well comprises tracer sources with distinct tracer materials in known levels of the well, at least one of said tracer sources arranged downstream and exposed to the fluids in at least one of said influx zones, wherein each said tracer source has an even release rate to said well fluid, characterised in that one or more of the tracer sources is provided in one or more delay chambers for ventilating out fluid with leaked tracer material at a time constant which is significantly longer than the diffusion rate from the tracer source to the well fluid, wherein the method further comprises: providing samples, the samples collected from the production flow at a location downstream of the tracer sources during a time period in which the tracer transient is detectable at the downstream location, analysing said samples for concentration an
    Type: Application
    Filed: May 11, 2020
    Publication date: August 27, 2020
    Applicant: RESMAN AS
    Inventor: Fridtjof NYHAVN
  • Patent number: 10689975
    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 gradi
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: June 23, 2020
    Assignee: RESMAN AS
    Inventors: Fridtjof Nyhavn, Christian Andresen, Gaute Oftedal
  • Patent number: 10669839
    Abstract: A method of estimating an influx profile for at least one well fluid to a producing petroleum well with two or more influx zones or influx locations to a production flow, wherein the well comprises tracer sources with distinct tracer materials in known levels of the well, at least one of said tracer sources arranged downstream and exposed to the fluids in at least one of said influx zones, wherein each said tracer source has an even release rate to said well fluid, characterised in that one or more of the tracer sources is provided in one or more delay chambers for ventilating out fluid with leaked tracer material at a time constant which is significantly longer than the diffusion rate from the tracer source to the well fluid, wherein the method further comprises: providing samples, the samples collected from the production flow at a location downstream of the tracer sources during a time period in which the tracer transient is detectable at the downstream location, analysing said samples for concentration an
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: June 2, 2020
    Assignee: RESMAN AS
    Inventor: Fridtjof Nyhavn
  • Publication number: 20200141227
    Abstract: 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.
    Type: Application
    Filed: November 1, 2019
    Publication date: May 7, 2020
    Applicant: Resman AS
    Inventors: Fridtjof NYHAVN, Thomas SPERLE
  • Publication number: 20200032641
    Abstract: 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.
    Type: Application
    Filed: February 3, 2017
    Publication date: January 30, 2020
    Applicant: Resman AS
    Inventors: Anton KULYAKHTIN, Christian ANDRESEN, Thomas SPERLE
  • Patent number: 10364217
    Abstract: The present invention relates to novel compounds of polyfunctionalized polyethylene and polypropylene glycols, their synthesis and their use, in particular as tracers in applications related to oil and gas production, and especially as specific markers of various target fluids.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: July 30, 2019
    Assignee: ResMan AS
    Inventors: Lars Kilaas, Erland Nordgard, Anne Dalager Dyrli
  • Publication number: 20190203587
    Abstract: 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 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.
    Type: Application
    Filed: October 17, 2018
    Publication date: July 4, 2019
    Applicant: Resman AS
    Inventors: Anton KULYAKHTIN, Christian ANDRESEN, Thomas SPERLE