Patents Assigned to Liberty Oilfield Services, LLC
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Patent number: 11754747Abstract: A system for determining pressure in a hydraulic fracturing system for a well includes a processing module executing code and configured to receive a plurality of input parameters. The processing module can predict either a bottomhole pressure, based on statistical predictions and physics-based predictions, or a surface pressure based on the predicted bottomhole pressure.Type: GrantFiled: July 14, 2022Date of Patent: September 12, 2023Assignee: LIBERTY OILFIELD SERVICES LLCInventors: Leen Weijers, Andrew Bonnell, Ely Lolon, Zhijun Liu, Kam Agarwal, Robert Henderson, Michael Mayerhofer
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Patent number: 11452975Abstract: A system for producing a wellbore fluid including a process fluid source, a rotating apparatus, and a motor directly coupled to the rotating apparatus. The motor is configured to receive a coolant and transfer heat from the motor to the coolant. The rotating apparatus is configured to receive process fluid from the process fluid source and mix the process fluid received from the process fluid source with one or more additives to produce a wellbore fluid. The coolant transfers heat to the process fluid, the wellbore fluid or both.Type: GrantFiled: March 9, 2020Date of Patent: September 27, 2022Assignee: LIBERTY OILFIELD SERVICES LLCInventor: Jonathan Wun Shiung Chong
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Patent number: 11415202Abstract: An articulation mechanism for large scale mobile aggregate system equipment. The mechanism includes a screw device that is pivotally secured to an elongated portion of the equipment to drive its movement to and from a collapsed position. The screw device is driven by a screw jack and moved within a housing while the housing itself is pivotally secured to another portion of the equipment. Rollers within the housing may be used to stabilize the lateral movement of the screw device during the opening, closing or self-locking of the elongated portion by the mechanism.Type: GrantFiled: December 17, 2019Date of Patent: August 16, 2022Assignee: LIBERTY OILFIELD SERVICES LLCInventor: Hau Nguyen-Phuc Pham
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Patent number: 11320079Abstract: A fluid manifold segment operable for detachably coupling with another instance of the fluid manifold segment to form a fluid manifold assembly. The fluid manifold segment may include a plurality of pressure exchangers each having a clean fluid inlet a clean fluid outlet, a dirty fluid inlet, and a dirty fluid outlet. The fluid manifold segment may further include a first fluid conduit having opposing end ports and intermediate ports, a second fluid conduit having opposing end ports and intermediate ports each fluidly connected with the clean fluid outlet of a corresponding pressure exchanger, a third fluid conduit having opposing end ports and intermediate ports each fluidly connected with the dirty fluid inlet of a corresponding pressure exchanger, and a fourth fluid conduit having opposing end ports and intermediate ports each fluidly connected with the dirty fluid outlet of a corresponding pressure exchanger.Type: GrantFiled: January 27, 2017Date of Patent: May 3, 2022Assignee: Liberty Oilfield Services LLCInventors: Yann Patrick Kuhn De Chizelle, John Robin Starr, Rod William Shampine, Richard L. Christie, Arturo Altamirano
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Patent number: 10889751Abstract: A stimulation fluid including (i) an aqueous solution of an ammonium salt capable of being exothermally oxidized to produce heat and gas, (ii) an aqueous solution of an oxidizing agent capable of oxidizing the ammonium salt; (iii) a water-soluble inorganic acid salt and/or an organic carboxylic acid salt of a tertiary amine; (iv) a low molecular weight carboxylic acid; and (v) a high salinity brine containing divalent metal ions; and (vi) optionally, a surfactant.Type: GrantFiled: August 29, 2016Date of Patent: January 12, 2021Assignee: Liberty Oilfield Services, LLCInventors: Ahmed M. Shahin, Bilu Cherian
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Patent number: 10741158Abstract: Provided herein is a system for reducing the overall noise output of equipment used in the hydraulic fracturing of oil and gas wells, by providing a noise-reducing enclosure and/or radiator which substantially reduce the level of noise that reaches the environment during normal operation.Type: GrantFiled: August 4, 2017Date of Patent: August 11, 2020Assignee: Liberty Oilfield Services LLCInventor: Roy Aune
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Patent number: D884749Type: GrantFiled: March 15, 2019Date of Patent: May 19, 2020Assignee: Liberty Oilfield Services, LLCInventors: Roy Aune, Jeffrey Brian Rother, Kevin Thomas Hufnagel
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Patent number: D931906Type: GrantFiled: August 4, 2017Date of Patent: September 28, 2021Assignee: Liberty Oilfield Services LLCInventors: Roy Aune, Jeffrey Brian Rother, Kevin Thomas Hufnagel
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Patent number: D971969Type: GrantFiled: March 4, 2019Date of Patent: December 6, 2022Assignee: LIBERTY OILFIELD SERVICES LLCInventors: Roy Aune, Jeffrey Brian Rother, Kevin Thomas Hufnagel