Patents by Inventor Wolfgang Mathis
Wolfgang Mathis 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: 20230332369Abstract: A suction anchor has a skirt open at one end and closed at another end to define an interior volume. At least one conduit nested within or adjacent to the skirt, is open at one end and closed at another end to define an inner volume. A suction line is fluidly connected to the interior volume through a first valve. A second valve is fluidly connected between the inner volume and either the suction line or the interior volume. The first valve and the second valve are operable to cause water flow at respective selected rates along both the skirt and the conduit from a body of water when the interior volume and the inner volume are evacuated and the suction anchor is disposed on the bottom of a body of water.Type: ApplicationFiled: June 5, 2023Publication date: October 19, 2023Inventors: Wolfgang Mathis, Ole Kristian Holen
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Patent number: 11286635Abstract: A wellhead foundation is for one or more subsea wells. The wellhead foundation has a suction foundation provided with a housing with an open bottom and a top which is closable with a top cover, and one or more pipes being attached to the housing and extending from the top of the housing and at least over a substantial part of the vertical extent of the housing towards or beyond the open bottom of the housing inside or outside of the periphery of the housing, and a straight upper portion of each pipe projecting up above the top of the housing and forming an upper well-pipe portion which forms part of a high-pressure barrier in the well. The straight upper pipe portion of each pipe is arranged parallel to the center axis of the housing. A method of establishing a subsea wellhead foundation is described as well.Type: GrantFiled: February 11, 2021Date of Patent: March 29, 2022Assignee: NeoDrill ASInventors: Wolfgang Mathis, Harald Strand
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Patent number: 11286754Abstract: A landing system for subsea equipment includes a heavy component having a latch affixed thereto and having a mechanism attached to enable lowering the heavy component from a platform above the bottom of a body of water. A landing system frame has a connection point matable with the latch. A linear motor is functionally coupled to the landing system frame and at least one of the subsea well structure and a movable frame on the landing system. The linear motor is operable to control a distance between the landing system frame and the subsea well structure or the movable frame.Type: GrantFiled: January 22, 2021Date of Patent: March 29, 2022Assignee: Neodrill ASInventors: Wolfgang Mathis, Harald Strand, Ole Kristian Holen
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Publication number: 20210164190Abstract: A wellhead foundation is for one or more subsea wells. The wellhead foundation has a suction foundation provided with a housing with an open bottom and a top which is closable with a top cover, and one or more pipes being attached to the housing and extending from the top of the housing and at least over a substantial part of the vertical extent of the housing towards or beyond the open bottom of the housing inside or outside of the periphery of the housing, and a straight upper portion of each pipe projecting up above the top of the housing and forming an upper well-pipe portion which forms part of a high-pressure barrier in the well. The straight upper pipe portion of each pipe is arranged parallel to the center axis of the housing. A method of establishing a subsea wellhead foundation is described as well.Type: ApplicationFiled: February 11, 2021Publication date: June 3, 2021Applicant: NeoDrill ASInventors: Wolfgang Mathis, Harald Strand
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Publication number: 20210140279Abstract: A landing system for subsea equipment includes a heavy component having a latch affixed thereto and having a mechanism attached to enable lowering the heavy component from a platform above the bottom of a body of water. A landing system frame has a connection point matable with the latch. A linear motor is functionally coupled to the landing system frame and at least one of the subsea well structure and a movable frame on the landing system. The linear motor is operable to control a distance between the landing system frame and the subsea well structure or the movable frame.Type: ApplicationFiled: January 22, 2021Publication date: May 13, 2021Inventors: Wolfgang Mathis, Harald Strand, Ole Kristian Holen
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Patent number: 10961679Abstract: A wellhead foundation is for one or more subsea wells. The wellhead foundation has a suction foundation provided with a housing with an open bottom and a top which is closable with a top cover, and one or more pipes being attached to the housing and extending from the top of the housing and at least over a substantial part of the vertical extent of the housing towards or beyond the open bottom of the housing inside or outside of the periphery of the housing, and a straight upper portion of each pipe projecting up above the top of the housing and forming an upper well-pipe portion which forms part of a high-pressure barrier in the well. The straight upper pipe portion of each pipe is arranged parallel to the center axis of the housing. A method of establishing a subsea wellhead foundation is described as well.Type: GrantFiled: November 24, 2016Date of Patent: March 30, 2021Assignee: NeoDrill ASInventors: Wolfgang Mathis, Harald Strand
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Patent number: 10724309Abstract: A well cement management system includes a well support base for urging below a bottom of a body of water, a wellbore tubular component disposed through the well support base; and a filling medium top up line in fluid communication with a space defined by an interior of the wellbore tubular component.Type: GrantFiled: January 26, 2018Date of Patent: July 28, 2020Assignee: NeoDrill ASInventor: Wolfgang Mathis
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Patent number: 10676998Abstract: A well support structure includes a well support base for urging below a bottom of a body of water. A first support is coupled to the well support base at a first longitudinal support level. A first load transfer device is operatively coupled between the first support and a wellbore tubular component. At least a second support is coupled to the well support base at a second longitudinal level below the first longitudinal support level. The wellbore tubular component extends between a longitudinal position above the first support to at least the longitudinal position of the at least a second support. Means for transferring load is provided between the wellbore tubular component and the at least a second support.Type: GrantFiled: January 26, 2018Date of Patent: June 9, 2020Assignee: NeoDrill ASInventor: Wolfgang Mathis
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Patent number: 10648248Abstract: A device and a method are for slanting a conductor casing when establishing a petroleum well where a supporting pipe has been inserted into the seabed. The supporting pipe is arranged to receive the conductor casing. The supporting pipe is provided with a casing shoe at a vertical distance below it upper end portion, the casing shoe forming a through casing-shoe opening eccentric relative to the supporting pipe.Type: GrantFiled: July 14, 2016Date of Patent: May 12, 2020Assignee: NeoDrill ASInventors: Harald Strand, Wolfgang Mathis
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Patent number: 10301790Abstract: A system is for establishing a collection of well foundations, the well foundations being formed of suction-foundation units arranged to be driven down into an unconsolidated mass. An alignment template includes several through cut-outs, each arranged to receive a suction-foundation unit. The alignment template placed over the unconsolidated mass, forms a means of positioning the suction-foundation units before the suction-foundation units are driven down into the unconsolidated mass. A method of establishing a collection of well foundations is described as well.Type: GrantFiled: June 8, 2016Date of Patent: May 28, 2019Assignee: NeoDrill ASInventors: Harald Strand, Wolfgang Mathis
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Patent number: 10287840Abstract: A device is for reducing the load on a wellhead casing from a bending moment generated by a horizontal load component from a well element arranged over a wellhead. A supporting frame is connected to an upper portion of the wellhead casing and projects outwards from the center axis of the wellhead casing and is provided with an abutment which rests supportingly against a base at a radial distance from the wellhead casing. The supporting frame is arranged to absorb a portion of said bending moment.Type: GrantFiled: November 25, 2015Date of Patent: May 14, 2019Assignee: NeoDrill ASInventors: Harald Strand, Wolfgang Mathis
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Publication number: 20190085645Abstract: A device and a method are for slanting a conductor casing when establishing a petroleum well where a supporting pipe has been inserted into the seabed. The supporting pipe is arranged to receive the conductor casing. The supporting pipe is provided with a casing shoe at a vertical distance below it upper end portion, the casing shoe forming a through casing-shoe opening eccentric relative to the supporting pipe.Type: ApplicationFiled: July 14, 2016Publication date: March 21, 2019Applicant: NeoDrill ASInventors: Harald Strand, Wolfgang Mathis
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Patent number: 10221539Abstract: A wellhead foundation is for one or more subsea wells. The wellhead foundation has a suction foundation with a housing with an open bottom and a top which is closable with a top cover, and one or more pipes being attached to the housing and extending from the top of the housing and at least over a substantial part of the vertical extent of the housing and away from the housing at least in a vertical direction. A straight upper part of each pipe projects up above the top of the housing and forms an upper conductor-casing portion which is arranged to receive the upper well-pipe portion and forms part of a low-pressure barrier in the well. The straight upper pipe portion of each pipe is arranged parallel to the center axis of the housing. A method of establishing a subsea wellhead foundation is described as well.Type: GrantFiled: November 24, 2016Date of Patent: March 5, 2019Assignee: NeoDrill ASInventors: Wolfgang Mathis, Harald Strand
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Publication number: 20190032427Abstract: A well support structure includes a well support base for urging below a bottom of a body of water. A first support is coupled to the well support base at a first longitudinal support level. A first load transfer device is operatively coupled between the first support and a wellbore tubular component. At least a second support is coupled to the well support base at a second longitudinal level below the first longitudinal support level. The wellbore tubular component extends between a longitudinal position above the first support to at least the longitudinal position of the at least a second support. Means for transferring load is provided between the wellbore tubular component and the at least a second support.Type: ApplicationFiled: January 26, 2018Publication date: January 31, 2019Inventor: Wolfgang Mathis
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Publication number: 20180355699Abstract: A wellhead foundation is for one or more subsea wells. The wellhead foundation has a suction foundation provided with a housing with an open bottom and a top which is closable with a top cover, and one or more pipes being attached to the housing and extending from the top of the housing and at least over a substantial part of the vertical extent of the housing towards or beyond the open bottom of the housing inside or outside of the periphery of the housing, and a straight upper portion of each pipe projecting up above the top of the housing and forming an upper well-pipe portion which forms part of a high-pressure barrier in the well. The straight upper pipe portion of each pipe is arranged parallel to the center axis of the housing. A method of establishing a subsea wellhead foundation is described as well.Type: ApplicationFiled: November 24, 2016Publication date: December 13, 2018Applicant: NeoDrill ASInventors: Wolfgang Mathis, Harald Strand
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Patent number: 10151166Abstract: A device is for stabilizing a well head which includes a well base arranged on a seabed. The well base includes at least a support column, and a first portion of a conductor casing being encircled by the support column, an annulus encircling the first conductor-casing portion being filled with cement, and a second portion of the conductor casing projecting in an elastically flexible manner up from the first conductor-casing portion. A method is for stabilizing a well head which includes a well base arranged on a seabed.Type: GrantFiled: February 18, 2015Date of Patent: December 11, 2018Assignee: NeoDrill ASInventor: Wolfgang Mathis
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Publication number: 20180347140Abstract: A wellhead foundation is for one or more subsea wells. The wellhead foundation has a suction foundation with a housing with an open bottom and a top which is closable with a top cover, and one or more pipes being attached to the housing and extending from the top of the housing and at least over a substantial part of the vertical extent of the housing and away from the housing at least in a vertical direction. A straight upper part of each pipe projects up above the top of the housing and forms an upper conductor-casing portion which is arranged to receive the upper well-pipe portion and forms part of a low-pressure barrier in the well. The straight upper pipe portion of each pipe is arranged parallel to the center axis of the housing. A method of establishing a subsea wellhead foundation is described as well.Type: ApplicationFiled: November 24, 2016Publication date: December 6, 2018Applicant: NeoDrill ASInventors: Wolfgang Mathis, Harald Strand
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Publication number: 20180223622Abstract: A well cement management system includes a well support base for urging below a bottom of a body of water, a wellbore tubular component disposed through the well support base; and a filling medium top up line in fluid communication with a space defined by an interior of the wellbore tubular component.Type: ApplicationFiled: January 26, 2018Publication date: August 9, 2018Inventor: Wolfgang Mathis
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Publication number: 20180171574Abstract: A system is for establishing a collection of well foundations, the well foundations being formed of suction-foundation units arranged to be driven down into an unconsolidated mass. An alignment template includes several through cut-outs, each arranged to receive a suction-foundation unit. The alignment template placed over the unconsolidated mass, forms a means of positioning the suction-foundation units before the suction-foundation units are driven down into the unconsolidated mass. A method of establishing a collection of well foundations is described as well.Type: ApplicationFiled: June 8, 2016Publication date: June 21, 2018Applicant: NeoDrill ASInventors: Harald Strand, Wolfgang Mathis
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Publication number: 20170356265Abstract: A device is for reducing the load on a wellhead casing from a bending moment generated by a horizontal load component from a well element arranged over a wellhead. A supporting frame is connected to an upper portion of the wellhead casing and projects outwards from the center axis of the wellhead casing and is provided with an abutment which rests supportingly against a base at a radial distance from the wellhead casing. The supporting frame is arranged to absorb a portion of said bending moment.Type: ApplicationFiled: November 25, 2015Publication date: December 14, 2017Applicant: NeoDrill ASInventors: Harald Strand, Wolfgang Mathis