Patents by Inventor Amare Mebratu
Amare Mebratu 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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Patent number: 10619449Abstract: A system includes a valve and a packer for controlling a location of a fluid in a low pressure well. The valve includes a valve housing and a pressure activated valve body that is axially movable in the valve housing between a closed position and at least a partly open position. The valve body has a surface facing a pressurized liquid. Movement of the valve body is opposed by a resilient element, and the valve is designed to open at a specific pressure. The valve housing has at least one valve opening that is exposed for pressurized fluid when the valve body is moved to its at least partly open position. The packer is peripherally positioned at the outside of the valve housing. The system is adapted to be releasable connected to a coiled tubing or a wireline.Type: GrantFiled: February 25, 2016Date of Patent: April 14, 2020Assignee: Smartcoil Solution ASInventor: Mikias Amare Mebratu
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Patent number: 10184321Abstract: A well system can include a generally tubular production string extending to a surface location. A production packer seals off an annulus external to the production string. A swellable packer is interconnected in the production string between the production packer and the surface location. A method of mitigating a leak in a generally tubular production string can include interconnecting a swellable packer in the production string, and the swellable packer swelling, and thereby increasingly restricting flow through an annulus surrounding the production string, in response to fluid leakage through a sidewall of the production string. Another method can include interconnecting a swellable packer in the production string, and the swellable packer swelling, and thereby increasingly restricting flow through an annulus surrounding the production string, in response to a flow of hydrocarbons into the annulus from an interior of the production string.Type: GrantFiled: December 1, 2014Date of Patent: January 22, 2019Assignee: Halliburton Energy Services, Inc.Inventor: Amare A. Mebratu
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Patent number: 10174241Abstract: Methods for forming a fluid seal in a subterranean formation may comprise: providing a treatment fluid comprising an aqueous carrier fluid, a sealant composition, and a crosslinked polysaccharide composition. The treatment fluid is introduced into a wellbore penetrating a subterranean formation and the crosslinked polysaccharide composition is formed into a viscosified gel in the wellbore. The viscosified gel substantially spans the diameter of the wellbore and holds the sealant composition in place. After forming the crosslinked polysaccharide composition into a viscosified gel in the wellbore, forming a fluid seal in the wellbore with the sealant composition.Type: GrantFiled: February 18, 2014Date of Patent: January 8, 2019Assignee: Halliburton Energy Services, Inc.Inventors: Larry Steven Eoff, B. Raghava Reddy, Natalie Pascarella, Amare Mebratu
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Patent number: 9879508Abstract: A wireline-assisted coiled-tubing portion is arranged to be lowered into a well in a ground. The wireline-assisted coiled-tubing portion comprises a coiled-tubing portion, the coiled-tubing portion in its entirety being arranged to be lowered into the well; and a wire which is attached to an, in the position of application, upper portion of the coiled-tubing portion, the wire extending from the coiled-tubing portion to the opening of the well at a surface, and the wire being arranged to transmit electrical energy and electrical signals.Type: GrantFiled: March 4, 2014Date of Patent: January 30, 2018Inventor: Mikias Amare Mebratu
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Publication number: 20180023369Abstract: A system includes a valve and a packer for controlling a location of a fluid in a low pressure well. The valve includes a valve housing and a pressure activated valve body that is axially movable in the valve housing between a closed position and at least a partly open position. The valve body has a surface facing a pressurized liquid. Movement of the valve body is opposed by a resilient element, and the valve is designed to open at a specific pressure. The valve housing has at least one valve opening that is exposed for pressurized fluid when the valve body is moved to its at least partly open position. The packer is peripherally positioned at the outside of the valve housing. The system is adapted to be releasable connected to a coiled tubing or a wireline.Type: ApplicationFiled: February 25, 2016Publication date: January 25, 2018Applicant: Smartcoil Solution ASInventor: Mikias Amare Mebratu
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Publication number: 20150376994Abstract: A wireline-assisted coiled-tubing portion is arranged to be lowered into a well in a ground. The wireline-assisted coiled-tubing portion comprises a coiled-tubing portion, the coiled-tubing portion in its entirety being arranged to be lowered into the well; and a wire which is attached to an, in the position of application, upper portion of the coiled-tubing portion, the wire extending from the coiled-tubing portion to the opening of the well at a surface, and the wire being arranged to transmit electrical energy and electrical signals.Type: ApplicationFiled: March 4, 2014Publication date: December 31, 2015Inventor: Mikias Amare MEBRATU
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Publication number: 20150083395Abstract: A well system can include a generally tubular production string extending to a surface location. A production packer seals off an annulus external to the production string. A swellable packer is interconnected in the production string between the production packer and the surface location. A method of mitigating a leak in a generally tubular production string can include interconnecting a swellable packer in the production string, and the swellable packer swelling, and thereby increasingly restricting flow through an annulus surrounding the production string, in response to fluid leakage through a sidewall of the production string. Another method can include interconnecting a swellable packer in the production string, and the swellable packer swelling, and thereby increasingly restricting flow through an annulus surrounding the production string, in response to a flow of hydrocarbons into the annulus from an interior of the production string.Type: ApplicationFiled: December 1, 2014Publication date: March 26, 2015Inventor: Amare A. MEBRATU
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Patent number: 8960312Abstract: A well system can include a generally tubular production string extending to a surface location. A production packer seals off an annulus external to the production string. A swellable packer is interconnected in the production string between the production packer and the surface location. A method of mitigating a leak in a generally tubular production string can include interconnecting a swellable packer in the production string, and the swellable packer swelling, and thereby increasingly restricting flow through an annulus surrounding the production string, in response to fluid leakage through a sidewall of the production string. Another method can include interconnecting a swellable packer in the production string, and the swellable packer swelling, and thereby increasingly restricting flow through an annulus surrounding the production string, in response to a flow of hydrocarbons into the annulus from an interior of the production string.Type: GrantFiled: June 30, 2010Date of Patent: February 24, 2015Assignee: Halliburton Energy Services, Inc.Inventor: Amare A. Mebratu
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Patent number: 8653008Abstract: A method for delivering a scale treatment agent to a hydrocarbon producing system. The method includes the steps of contacting the system with a foam comprising the scale treatment agent, and shutting the scale treatment agent in the system for at least 0.5 hour.Type: GrantFiled: June 11, 2008Date of Patent: February 18, 2014Assignees: Champion Technologies Ltd., Halliburton Energy Services, Inc., StatoilHydro ASAInventors: Olav Martin Selle, Amare Mebratu, Harry Montgomerie, Ping Chen, Thomas Hagen
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Publication number: 20120000676Abstract: A well system can include a generally tubular production string extending to a surface location. A production packer seals off an annulus external to the production string. A swellable packer is interconnected in the production string between the production packer and the surface location. A method of mitigating a leak in a generally tubular production string can include interconnecting a swellable packer in the production string, and the swellable packer swelling, and thereby increasingly restricting flow through an annulus surrounding the production string, in response to fluid leakage through a sidewall of the production string. Another method can include interconnecting a swellable packer in the production string, and the swellable packer swelling, and thereby increasingly restricting flow through an annulus surrounding the production string, in response to a flow of hydrocarbons into the annulus from an interior of the production string.Type: ApplicationFiled: June 30, 2010Publication date: January 5, 2012Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventor: Amare A. MEBRATU
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Publication number: 20100167963Abstract: The present invention provides a method for delivering a scale treatment agent to a hydrocarbon producing system, said method comprising: contacting said system with a foam comprising said scale treatment agent; and shutting said scale treatment agentin said system for at least 0.5 hour.Type: ApplicationFiled: June 11, 2008Publication date: July 1, 2010Inventors: Olav Martin Selle, Amare Mebratu, Harry Montgomerie, Ping Chen, Thomas Hagen
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Publication number: 20090156433Abstract: According to the invention, a fully viscosified acid diversion system for hydrofluoric acid has been developed. The viscosifying agent comprises a xanthan polymer or a derivative thereof. A method of acidizing a portion of a subterranean formation is provided, the method comprising the steps of: (A) forming a viscosified treatment fluid comprising: (i) water; (ii) hydrogen fluoride or a controlled-release source of hydrogen fluoride; and (iii) a gelling agent comprising a xanthan polymer or derivative thereof; and (B) introducing the viscosified treatment fluid into the portion of the subterranean formation. A breaking agent can be used to achieve a controlled gel break time under downhole conditions. Other additives can also be included in the treatment fluid.Type: ApplicationFiled: December 12, 2007Publication date: June 18, 2009Inventors: Amare Mebratu, Olav Martin Selle