Patents by Inventor Kristian Harestad
Kristian Harestad has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230016342Abstract: A valve device having a valve with first connection elements for mounting the valve in a port of a wellhead, a spool unit having a through-channel, second connection elements arranged in the through-channel, and a flange, the flange configured for sealingly mounting the spool unit to the wellhead, aligning the through-channel with the port, and a plug comprising third connection elements configured for sealingly and removably engaging the second connection elements and attach the plug in the through-channel. A method for removing, replacing or arranging a valve located in a port of a wellhead is also provided.Type: ApplicationFiled: September 26, 2022Publication date: January 19, 2023Inventor: Kristian HARESTAD
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Patent number: 11454086Abstract: A valve device having a valve with first connection elements for mounting the valve in a port of a wellhead, a spool unit having a through-channel, second connection elements arranged in the through-channel, and a flange, the flange configured for sealingly mounting the spool unit to the wellhead, aligning the through-channel with the port, and a plug comprising third connection elements configured for sealingly and removably engaging the second connection elements and attach the plug in the through-channel. A method for removing, replacing or arranging a valve located in a port of a wellhead is also provided.Type: GrantFiled: December 4, 2017Date of Patent: September 27, 2022Assignee: Petroleum Technology Company ASInventor: Kristian Harestad
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Publication number: 20220170342Abstract: A valve arrangement for a wellhead of a hydrocarbon well comprises a valve for mounting in a port of a wellhead, and an actuator device for actuating the valve to move to an open position. The actuator device comprises a housing having a through channel extending between a first end, at which the valve is mounted, and a second end. The housing comprises at least one first port that leads into the through channel. The actuator device further comprises an actuator rod that is movably arranged in the through channel and configured to open the valve by the actuator rod being movable between at least a first position and a second position, and a control device arranged to control the movement of the actuator rod.Type: ApplicationFiled: June 24, 2020Publication date: June 2, 2022Inventor: Kristian Harestad
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Publication number: 20220162928Abstract: A valve arrangement for injection of an injection fluid in a process fluid tubing, comprising an inlet part connectable to an injection fluid source, an outer housing that is connectable to a process fluid tubing and comprising at least one outlet opening that enables a fluid communication between an interior of the outer housing and a process fluid tubing, and a first valve device comprising a first valve member that is arranged in the outer housing and movable within the outer housing in a longitudinal direction, and said first valve member is arranged to control an inflow of injection fluid into the valve arrangement by being movable between a closed position and an open position.Type: ApplicationFiled: June 5, 2020Publication date: May 26, 2022Inventor: Kristian Harestad
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Patent number: 11230893Abstract: A method of producing a side pocket mandrel body (1) for use in a hydrocarbon well side pocket mandrel assembly, which mandrel body comprises: a first end (2) displaying a first connection arrangement (3) for connecting the mandrel body to an up-hole section of a production tubing of the hydrocarbon well, and a second end (4) displaying a second connection arrangement (5) for connecting the mandrel body to a down-hole section of the production tubing; a longitudinal, through-going main conduit (6) for communicating with a central passageway of the production tubing; and a side pocket section (7) comprising at least one side pocket (8) for retrievably housing an injection fluid flow control device.Type: GrantFiled: May 22, 2020Date of Patent: January 25, 2022Assignee: Petroleum Technology Company ASInventors: Ståle Pettersen, Kristian Harestad
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Publication number: 20200284103Abstract: A method of producing a side pocket mandrel body (1) for use in a hydrocarbon well side pocket mandrel assembly, which mandrel body comprises: a first end (2) displaying a first connection arrangement (3) for connecting the mandrel body to an up-hole section of a production tubing of the hydrocarbon well, and a second end (4) displaying a second connection arrangement (5) for connecting the mandrel body to a down-hole section of the production tubing; a longitudinal, through-going main conduit (6) for communicating with a central passageway of the production tubing; and a side pocket section (7) comprising at least one side pocket (8) for retrievably housing an injection fluid flow control device.Type: ApplicationFiled: May 22, 2020Publication date: September 10, 2020Applicant: PETROLEUM TECHNOLOGY COMPANY ASInventors: Ståle Pettersen, Kristian Harestad
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Patent number: 10662723Abstract: A method of producing a side pocket mandrel body for use in a hydrocarbon well side pocket mandrel assembly includes providing a continuous, solid piece of material with the through-going main conduit; in the solid piece of material, forming said at least one side pocket by machining a bore, displaying an external entrance opening, into a laterally offset section of the solid piece of material generally parallel to the main conduit such that an internal wall section of the solid piece of material is brought to separate the main conduit from the machined bore; plugging the entrance opening of the machined bore with a fluid-tight plug; providing at least one opening from an outside of the mandrel body into the at least one side pocket; providing at least one opening in the wall section; and providing the solid piece of material with the first and the second connection arrangements, thereby rendering the mandrel body connectable to the up-hole and down-hole sections of the production tubing.Type: GrantFiled: October 29, 2015Date of Patent: May 26, 2020Assignee: Petroleum Technology Company ASInventors: Ståle Pettersen, Kristian Harestad
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Patent number: 10450821Abstract: A wellhead port plug assembly includes a first plug body including connection elements allowing the first plug body to be sealingly and removably mounted in a port of a wellhead of a hydrocarbon well. The plug assembly includes a spool unit displaying an axial through-channel extending between a first end and a second end of the spool unit, which spool unit includes a first flange section arranged at the first end for sealingly mounting the spool unit to the wellhead aligning the through-channel with the port, and a second flange section arranged at the second end; a second plug body including connection elements allowing the second plug body to be sealingly and removably mounted in the through-channel; and a blind flange which is sealingly and removably mounted to the second flange section allowing the second plug body and the first plug body to be removed from the wellhead via the through-channel.Type: GrantFiled: April 24, 2015Date of Patent: October 22, 2019Assignee: PETROLEUM TECHNOLOGY COMPANY ASInventors: Lino Guedes, Andre Bolager, Erling Kleppa, Kristian Harestad, Trond Kvasnes
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Publication number: 20190284900Abstract: A valve device having a valve with first connection elements for mounting the valve in a port of a wellhead, a spool unit having a through-channel, second connection elements arranged in the through-channel, and a flange, the flange configured for sealingly mounting the spool unit to the wellhead, aligning the through-channel with the port, and a plug comprising third connection elements configured for sealingly and removably engaging the second connection elements and attach the plug in the through-channel. A method for removing, replacing or arranging a valve located in a port of a wellhead is also provided.Type: ApplicationFiled: December 4, 2017Publication date: September 19, 2019Inventor: Kristian HARESTAD
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Patent number: 10167699Abstract: A cementing device for establishing a false bottom in a well bore for formation of a cement plug in the well bore. The cementing device includes a tool body which has a front end and a rear end. The cementing device further includes at least one propulsion device which is attached to the front end and/or the rear end of the tool body and is adapted for being propelled by a fluid.Type: GrantFiled: February 12, 2016Date of Patent: January 1, 2019Assignee: PERIGON ASInventor: Kristian Harestad
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Publication number: 20180030809Abstract: A cementing device for establishing a false bottom in a well bore for formation of a cement plug in the well bore. The cementing device includes a tool body which has a front end and a rear end. The cementing device further includes at least one propulsion device which is attached to the front end and/or the rear end of the tool body and is adapted for being propelled by a fluid.Type: ApplicationFiled: February 12, 2016Publication date: February 1, 2018Applicant: PERIGON ASInventor: Kristian Harestad
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Publication number: 20170241216Abstract: A method of producing a side pocket mandrel body for use in a hydrocarbon well side pocket mandrel assembly includes providing a continuous, solid piece of material with the through-going main conduit; in the solid piece of material, forming said at least one side pocket by machining a bore, displaying an external entrance opening, into a laterally offset section of the solid piece of material generally parallel to the main conduit such that an internal wall section of the solid piece of material is brought to separate the main conduit from the machined bore; plugging the entrance opening of the machined bore with a fluid-tight plug; providing at least one opening from an outside of the mandrel body into the at least one side pocket; providing at least one opening in the wall section; and providing the solid piece of material with the first and the second connection arrangements, thereby rendering the mandrel body connectable to the up-hole and down-hole sections of the production tubing.Type: ApplicationFiled: October 29, 2015Publication date: August 24, 2017Applicant: PETROLEUM TECHNOLOGY COMPANY ASInventors: Ståle PETTERSEN, Kristian HARESTAD
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Patent number: 9611720Abstract: A valve arrangement for controlling the flow of an injection fluid from a well annulus into a hydrocarbon well, includes a valve body being insertable into a side pocket mandrel, an injection fluid valve for controlling the flow of the injection fluid through the valve arrangement and a bellows arrangement including a first pressure member, a second pressure member and at least one bellows element. A control line port is arranged in the valve body for fluid communication with a control line of the well and a control fluid chamber in fluid communication with the control line port comprises a hydraulic control fluid for biasing the injection fluid valve towards the open position.Type: GrantFiled: February 4, 2014Date of Patent: April 4, 2017Assignee: PETROLEUM TECHNOLOGY COMPANY ASInventors: Ole Sevheim, Erling Kleppa, Kristian Harestad
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Patent number: 9580991Abstract: A shear valve (1) for use in a downhole tool between the annulus and tubing in a well comprises an outer housing (11) and an internal body (13) movable in a longitudinal direction within the housing when the valve is activated, and at least one obstruction device (16, 10) which can be arranged to obstruct the internal body from moving. The obstruction device is capable of being deactivated by pressure from the tubing side of the valve.Type: GrantFiled: March 15, 2012Date of Patent: February 28, 2017Assignee: PETROLEUM TECHNOLOGY COMPANY ASInventors: Kristian Harestad, Helge Skorve, Magnar Tveiten
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Publication number: 20170044861Abstract: A wellhead port plug assembly includes a first plug body including connection elements allowing the first plug body to be sealingly and removably mounted in a port of a wellhead of a hydrocarbon well. The plug assembly includes a spool unit displaying an axial through-channel extending between a first end and a second end of the spool unit, which spool unit includes a first flange section arranged at the first end for sealingly mounting the spool unit to the wellhead aligning the through-channel with the port, and a second flange section arranged at the second end; a second plug body including connection elements allowing the second plug body to be sealingly and removably mounted in the through-channel; and a blind flange which is sealingly and removably mounted to the second flange section allowing the second plug body and the first plug body to be removed from the wellhead via the through-channel.Type: ApplicationFiled: April 24, 2015Publication date: February 16, 2017Applicant: PETROLEUM TECHNOLOGY COMPANY ASInventors: Lino GUEDES, Andre BOLAGER, Erling KLEPPA, Kristian HARESTAD, Trond KVASNES
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Publication number: 20150330183Abstract: A valve arrangement (8) for controlling the flow of an injection fluid from a well annulus (4) into a well conduit (5) of a hydrocarbon well (1), comprising a valve body (9) being insertable into a side pocket mandrel (6) of the hydrocarbon well (1), the valve 23- body comprising: at least one inlet port (10) for receiving the injection fluid from the well annulus; at least one outlet port (11) for delivering the injection fluid to the well conduit; an injection fluid valve (19) being arranged in fluid communication with the least one inlet port and the at least one outlet port and being operable between an open position and a closed position for controlling the flow of the injection fluid through the valve arrangement; an actuating device (22) for actuating the injection fluid valve towards the closed position; and a bellows arrangement (24) comprising a first pressure member (26), a second pressure member (27) and at least one bellows element (34, 35) enclosing at least one bellows chamber comprising a bellType: ApplicationFiled: February 4, 2014Publication date: November 19, 2015Inventors: Ole Sevheim, Erling Kleppa, Kristian Harestad
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Patent number: 9157294Abstract: A wave-inducing device for cementing a casing in a borehole. The wave-inducing device is designed for arrangement in the casing and includes a movable element which, when the wave-inducing device is arranged in the casing, is designed to be moved by cement and/or another fluid flowing through the casing so that wave motions and/or vibrations are provided in the cement during the cementing of the casing.Type: GrantFiled: March 16, 2012Date of Patent: October 13, 2015Assignee: Perigon Handel ASInventors: Erling Kleppa, Kristian Harestad
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Publication number: 20140299320Abstract: A wave-inducing device for cementing a casing in a borehole. The wave-inducing device is designed for arrangement in the casing and includes a movable element which, when the wave-inducing device is arranged in the casing, is designed to be moved by cement and/or another fluid flowing through the casing so that wave motions and/or vibrations are provided in the cement during the cementing of the casing.Type: ApplicationFiled: March 16, 2012Publication date: October 9, 2014Applicant: PERIGON HANDEL ASInventors: Erling Kleppa, Kristian Harestad
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Publication number: 20140130893Abstract: A shear valve (1) for use in a downhole tool between the annulus and tubing in a well comprises an outer housing (11) and an internal body (13) movable in a longitudinal direction within the housing when the valve is activated, and at least one obstruction device (16, 10) which can be arranged to obstruct the internal body from moving. The obstruction device is capable of being deactivated by pressure from the tubing side of the valve.Type: ApplicationFiled: March 15, 2012Publication date: May 15, 2014Applicant: PETROLEUM TECHNOLOGY COMPANY ASInventors: Kristian Harestad, Helge Skorve, Magnar Tveiten
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Patent number: 8136601Abstract: A device for increasing the production flow in a production tubing, where the production tubing has at least one inlet or port for adding a fluid medium, adds the fluid medium through the at least one inlet or port at an angle ? between 90 and 0 degrees with a longitudinal axis of the production tubing. The device further has elements that provide a rotation of the added fluid medium.Type: GrantFiled: March 28, 2008Date of Patent: March 20, 2012Assignee: Petroleum Technology CompanyInventors: Magnar Tveiten, David Hutchinson, Egil Josefsen, Kristian Harestad