Patents Assigned to Excelerate Energy Limited Partnership
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Publication number: 20240159360Abstract: An apparatus, system and method for heat and cold recovery onboard a floating storage regasification unit (FSRU). A heat recovery apparatus onboard a FSRU includes a LNG vaporizer, a heat transfer fluid configured to transfer heat of vaporization to LNG in the LNG vaporizer during active regasification mode and thereby obtain cold of LNG, a heat recovery fluid including a portion of the heat transfer fluid, wherein the heat recovery fluid is configured to employ the cold of LNG to completely cool FSRU machinery and an FSRU air conditioning unit during active regasification mode, and thereby the heat recovery fluid obtains machinery heat, and wherein the heat of vaporization includes the machinery heat and at least one additional heat source.Type: ApplicationFiled: November 7, 2023Publication date: May 16, 2024Applicant: Excelerate Energy Limited PartnershipInventors: Trevor Earl Wilkinson, Pedro Francisco Pinilla
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Patent number: 11434732Abstract: A method for floating gas lift includes injecting natural gas from a FSRU into an annulus of an oil well, wherein the FSRU is fluidly coupled to the oil well, and the natural gas is pressurized for gas lift using at least one pump onboard the FSRU. An apparatus for floating gas lift includes a FSRU including a pump system having a high pressure (HP) LNG discharge and a regasification system including HP gaseous natural gas discharge fluidly coupled to an annulus of a downhole well, and production tubing that lifts a combined production fluid, the combined production fluid including downhole formation fluid entering the inside of the production tubing through perforations in the well casing and a production tubing inlet, and gaseous natural gas discharged from the FSRU entering the inside of the production tubing through the annulus and a valve in the production tubing.Type: GrantFiled: January 16, 2020Date of Patent: September 6, 2022Assignee: Excelerate Energy Limited PartnershipInventors: Henry George Kleemeier, Daniel Horacio Bustos, Kenneth Hugh McGeachie, Graeme David Trotter
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Patent number: 11204117Abstract: Systems and methods for dockside regasification of liquefied natural gas (LNG) are described herein. The methods include providing LNG from a LNG carrier to a regasification vessel. The LNG may be regasified on the regasification vessel. The regasified natural gas may be discharged with a high pressure arm to a dock and delivered onshore. The regasification vessel may be moored to the dock. The LNG carrier may be moored to the regasification vessel or the dock.Type: GrantFiled: February 19, 2019Date of Patent: December 21, 2021Assignee: Excelerate Energy Limited PartnershipInventors: Robert Allen Bryngelson, Jonathan W. Cook, Mark K. Lane, Edward C. Scott
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Patent number: 10584830Abstract: An apparatus, system and method for capture, utilization and sendout of latent heat in boil off gas (“BOG”) onboard a cryogenic storage vessel is described. A liquefied gas vessel comprises a cryogenic cargo tank onboard a liquefied gas vessel, the cargo tank comprising a liquefied gas and a BOG, a latent heat exchanger fluidly coupled to a stream of the liquefied gas and a stream of the BOG, wherein the latent heat exchanger transfers a heat between the BOG stream and the liquefied gas stream to produce a condensed BOG, means for combining the condensed BOG and the liquefied gas stream to obtain a combined stream, the means for combining the condensed BOG and the liquefied gas stream fluidly coupled to the latent heat exchanger, and a liquefied gas regasifier onboard the vessel and fluidly coupled to the combined stream, wherein the liquefied gas regasifier regasifies the combined stream.Type: GrantFiled: March 7, 2019Date of Patent: March 10, 2020Assignee: Excelerate Energy Limited PartnershipInventors: Kenneth D. Nelson, Graeme David Trotter, Alan B. Nierenberg, Kenneth Hugh McGeachie
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Patent number: 10549820Abstract: A method and system for heading control during ship-to-ship (STS) transfer of liquefied natural gas (LNG). A method for heading control during STS transfer of LNG while moored on a buoy includes berthing a floating storage regasification unit (FSRU) to a buoy at a forward end of the FSRU, holding a stern of the berthed FSRU at a first heading with a bow of the FSRU pointing into a current, docking an LNG carrier (LNGC) alongside the berthed FSRU, mooring the LNGC to the berthed FSRU in a double-banked configuration at the first heading, adjusting the first heading of the FSRU and moored LNGC to a second heading with the bow of the FSRU and a bow of the LNGC pointing into a swell, and transferring LNG from the LNGC to the FSRU while the FSRU and moored LNGC are pointed into the swell.Type: GrantFiled: September 29, 2017Date of Patent: February 4, 2020Assignee: Excelerate Energy Limited PartnershipInventors: Mark Kevin Lane, Charles Erwin Ruehl, Jr., Michael Todd Carroll
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Patent number: 10359229Abstract: A floating liquefied natural gas (“FLNG”) commissioning system and method are described.Type: GrantFiled: September 5, 2017Date of Patent: July 23, 2019Assignee: Excelerate Energy Limited PartnershipInventors: Daniel Isaacson, Thomas M. Norton
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Patent number: 10267457Abstract: An apparatus, system and method for capture, utilization and sendout of latent heat in boil off gas (“BOG”) onboard a cryogenic storage vessel is described. A liquefied gas vessel comprises a cryogenic cargo tank onboard a liquefied gas vessel, the cargo tank comprising a liquefied gas and a BOG, a latent heat exchanger fluidly coupled to a stream of the liquefied gas and a stream of the BOG, wherein the latent heat exchanger transfers a heat between the BOG stream and the liquefied gas stream to produce a condensed BOG, means for combining the condensed BOG and the liquefied gas stream to obtain a combined stream, the means for combining the condensed BOG and the liquefied gas stream fluidly coupled to the latent heat exchanger, and a liquefied gas regasifier onboard the vessel and fluidly coupled to the combined stream, wherein the liquefied gas regasifier regasifies the combined stream.Type: GrantFiled: September 26, 2014Date of Patent: April 23, 2019Assignee: Excelerate Energy Limited PartnershipInventors: Kenneth D. Nelson, Graeme David Trotter, Alan B. Nierenberg, Kenneth Hugh McGeachie
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Patent number: 10247338Abstract: Systems and methods for dockside regasification of liquefied natural gas (LNG) are described herein. The methods include providing LNG from a LNG carrier to a regasification vessel. The LNG may be regasified on the regasification vessel. The regasified natural gas may be discharged with a high pressure arm to a dock and delivered onshore. The regasification vessel may be moored to the dock. The LNG carrier may be moored to the regasification vessel or the dock.Type: GrantFiled: January 28, 2016Date of Patent: April 2, 2019Assignee: Excelerate Energy Limited PartnershipInventors: Robert Allen Bryngelson, Jonathan W. Cook, Mark K. Lane, Edward C. Scott
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Patent number: 9919774Abstract: Systems and methods for gas-up and cool down of LNG cargo tanks are described herein. A system includes a supply vessel located at a waterway location, a receiving vessel moored to the supply vessel, and a manifold conduit. The supply vessel is configured to transfer natural gas to the receiving vessel using the manifold conduit for gas-up and cool down of one or more LNG cargo tanks onboard the receiving vessel.Type: GrantFiled: May 19, 2011Date of Patent: March 20, 2018Assignee: Excelerate Energy Limited PartnershipInventors: Jonathan W. Cook, Mark K. Lane
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Patent number: 9810478Abstract: A floating liquefied natural gas (“FLNG”) commissioning system and method are described.Type: GrantFiled: February 27, 2015Date of Patent: November 7, 2017Assignee: Excelerate Energy Limited PartnershipInventors: Daniel Isaacson, Thomas M. Norton
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Patent number: 9580153Abstract: An apparatus, system and method for a retractable LNG cargo transfer bow manifold for tandem marine cargo transfers are described herein. A retractable liquefied natural gas (LNG) cargo transfer system comprises a marine vessel, an LNG cargo transfer bow manifold moveably attached to a main deck of the marl He vessel, wherein the LNG cargo transfer bow manifold is slideable between a forward position proximate a bow of the marine vessel, and an aft position aft of the bow, the LNG cargo transfer bow manifold elevationally coupled to the main deck by a retractable support member, wherein the retractable support member is moveable between an extended position such that the LNG cargo transfer bow manifold is raised above the main deck, and a retracted position such that the LNG cargo transfer bow manifold rests on one of the main deck, below the main deck or a combination thereof.Type: GrantFiled: February 24, 2015Date of Patent: February 28, 2017Assignee: Excelerate Energy Limited PartnershipInventor: Mark K. Lane
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Publication number: 20160215930Abstract: An apparatus, system and method for capture, utilization and sendout of latent heat in boil off gas (“BOG”) onboard a cryogenic storage vessel is described. A liquefied gas vessel comprises a cryogenic cargo tank onboard a liquefied gas vessel, the cargo tank comprising a liquefied gas and a BOG, a latent heat exchanger fluidly coupled to a stream of the liquefied gas and a stream of the BOG, wherein the latent heat exchanger transfers a heat between the BOG stream and the liquefied gas stream to produce a condensed BOG, means for combining the condensed BOG and the liquefied gas stream to obtain a combined stream, the means for combining the condensed BOG and the liquefied gas stream fluidly coupled to the latent heat exchanger, and a liquefied gas regasifier onboard the vessel and fluidly coupled to the combined stream, wherein the liquefied gas regasifier regasifies the combined stream.Type: ApplicationFiled: September 26, 2014Publication date: July 28, 2016Applicant: Excelerate Energy Limited PartnershipInventors: Kenneth D. Nelson, Graeme David Trotter, Alan B. Nierenberg, Kenneth Hugh McGeachie
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Patent number: 9103472Abstract: Systems, methods and apparatuses for the installation or removal of buoyancy modules onto or from a submerged conduit are described herein. A system may include a buoyancy module (30), a control panel (76), an actuating means (72), and a clamp tool (40). The buoyancy module may include at least two sections. The clamp tool may hold the sections of the buoyancy module. The clamp tool (40) may include at least two plates (50, 52, 54, 56) that are actuated opened or closed, using the control panel (76) and/or the actuating means (72) during attachment or removal of the buoyancy module (30) to the submerged conduit (10).Type: GrantFiled: February 13, 2015Date of Patent: August 11, 2015Assignee: Excelerate Energy Limited PartnershipInventors: Lauren Elizabeth Laborde, Charles E. Ruehl, Edward Scott, Mark K. Lane
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Patent number: 9004818Abstract: Systems, methods and apparatuses for the installation or removal of buoyancy modules onto or from a submerged conduit are described herein. A system may include a buoyancy module (30), a control panel (76), an actuating means (72), and a clamp tool (40). The buoyancy module may include at least two sections. The clamp tool may hold the sections of the buoyancy module. The clamp tool (40) may include at least two plates (50, 52, 54, 56) that are actuated opened or closed using the control panel (76) and/or the actuating means (72) during attachment or removal of the buoyancy module (30) to the submerged conduit (10).Type: GrantFiled: July 29, 2010Date of Patent: April 14, 2015Assignee: Excelerate Energy Limited PartnershipInventors: Lauren Elizabeth Laborde, Charles E. Ruehl, Edward Scott, Mark K. Lane
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Publication number: 20130118185Abstract: Systems and methods for gas-up and cool down of LNG cargo tanks are described herein. A system includes a supply vessel located at a waterway location, a receiving vessel moored to the supply vessel, and a manifold conduit. The supply vessel is configured to transfer natural gas to the receiving vessel using the manifold conduit for gas-up and cool down of one or more LNG cargo tanks onboard the receiving vessel.Type: ApplicationFiled: May 19, 2011Publication date: May 16, 2013Applicant: Excelerate Energy Limited PartnershipInventors: Jonathan W. Cook, Mark K. Lane
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Publication number: 20120207547Abstract: Systems, methods and apparatuses for the installation or removal of buoyancy modules onto or from a submerged conduit are described herein. A system may include a buoyancy module (30), a control panel (76), an actuating means (72), and a clamp tool (40). The buoyancy module may include at least two sections. The clamp tool may hold the sections of the buoyancy module. The clamp tool (40) may include at least two plates (50, 52, 54, 56) that are actuated opened or closed using the control panel (76) and/or the actuating means (72) during attachment or removal of the buoyancy module (30) to the submerged conduit (10).Type: ApplicationFiled: July 29, 2010Publication date: August 16, 2012Applicant: Excelerate Energy Limited partnershipInventors: Lauren Elizabeth Guzick, Charles E. Ruehl, Edward Scott, Mark K. Lane
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Publication number: 20100263389Abstract: Systems and methods for dockside regasification of liquefied natural gas (LNG) are described herein. The methods include providing LNG from a LNG carrier to a regasification vessel. The LNG may be regasified on the regasification vessel. The regasified natural gas may be discharged with a high pressure arm to a dock and delivered onshore. The regasification vessel may be moored to the dock. The LNG carrier may be moored to the regasification vessel or the dock.Type: ApplicationFiled: April 14, 2010Publication date: October 21, 2010Applicant: EXCELERATE ENERGY LIMITED PARTNERSHIPInventors: Robert Allen Bryngelson, Mark Lane, Edward Scott, Jonathan Cook
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Publication number: 20100192597Abstract: An LNG carrier for transporting LNG from one location to another that includes a vaporizer on board said LNG carrier for vaporizing the LNG to a gaseous state, one or more heat exchangers at least partially submerged in seawater, an intermediate fluid circulating between said vaporizer and said heat exchanger, and one or more pumps for circulation said intermediate fluid is disclosed. A method of regasifying LNG while on board an LNG carrier is provided that includes circulating an intermediate fluid between a vaporizer on board the LNG carrier and a submerged or partially submerged heat exchanger, heating the LNG to a temperature above its vaporization temperature using heat energy carried by said intermediate fluid and heating the intermediate fluid, using heat energy supplied by the submerged or partially submerged heat exchanger.Type: ApplicationFiled: April 12, 2010Publication date: August 5, 2010Applicant: EXCELERATE ENERGY LIMITED PARTNERSHIPInventor: Alan B. Nierenberg
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Patent number: 7484371Abstract: A liquefied natural gas carrier uses a diesel engine or gas turbine propulsion plant fitted with a shipboard regasification system. The propulsion plant can provide either a direct mechanical drive of the propeller shaft and propeller, or can be fitted with an integrated electric power plant using an electric motor or motors to drive the propeller shaft and propeller. The regasification system includes a heat input source of exhaust gas heat exchangers, electric water heaters and supplemental heaters to provide an additional heat source to a hot water circulating loop. The liquefied natural gas contacts the hot water or heating medium circulating loop and is regasified. An undersea conduit from the ship transmits the regasified natural gas to an on shore plant.Type: GrantFiled: May 17, 2007Date of Patent: February 3, 2009Assignee: Excelerate Energy Limited PartnershipInventor: Alan Nierenberg
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Patent number: 7219502Abstract: A liquefied natural gas carrier uses a diesel engine or gas turbine propulsion plant fitted with a shipboard regasification system. The propulsion plant can provide either a direct mechanical drive of the propeller shaft and propeller, or can be fitted with an integrated electric power plant using an electric motor or motors to drive the propeller shaft and propeller. The regasification system includes a heat input source of exhaust gas heat exchangers, electric water heaters and supplemental heaters to provide an additional heat source to a hot water circulating loop. The liquefied natural gas contacts the hot water or heating medium circulating loop and is regasified. An undersea conduit from the ship transmits the regasified natural gas to an on shore plant.Type: GrantFiled: August 12, 2004Date of Patent: May 22, 2007Assignee: Excelerate Energy Limited PartnershipInventor: Alan Nierenberg