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公开(公告)号：US20240191265A1
公开(公告)日：2024-06-13
申请号：US18509425
申请日：2023-11-15
Inventor： Xiaozhou Zhang , Glen E. Alliger , Yuchen Liu
IPC: C12P7/62
CPC classification number: C12P7/62
Abstract: Methods of β-lactone production, including the integrated bioconversion of β-lactone production and methods related thereto. Methods include reacting a feedstock and a recombinant microorganism harboring one or more genes encoding enzymes involved in the metabolic pathway of a 3-hydroxycarboxylic acid, thereby producing a 3-hydroxycarboxylic acid having C1-C10 alkyl groups. Thereafter, reacting the 3-hydroxycarboxilic acid with a bioengineered natural β-lactone synthetase, the bioengineered β-lactone synthetase engineered to comprise a substrate binding pocket capable of accepting the 3-hydroxycarboxylic acid having C1-C10 alkyl groups, thereby producing a β-lactone having C1-C10 alkyl groups.
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公开(公告)号：US20240183260A1
公开(公告)日：2024-06-06
申请号：US18555246
申请日：2022-02-04
Inventor： Ripudaman MANCHANDA , Holger A. MEIER , Peeyush BHARGAVA
IPC: E21B43/267
CPC classification number: E21B43/267 , E21B2200/20
Abstract: A method and a system for volume-based proppant trapping along a fracture surface is disclosed. Hydraulic fracturing involves injecting proppant to ensure separation of the fracture surfaces after the stimulation treatment is completed. The spatial placement of proppant is assumed to be directly related to the fracture conductivity along the hydraulic fracture as well as its connectivity to the wellbore. Fracture conductivity is an important focus of designing fracture treatments since fracture conductivity may be directly related to the well performance. Thus, improving one or more aspects of proppant placement, such as determining the optimal type, size and/or concentration of proppant(s) may enhance fracture conductivity and in turn improve well performance. In order to understand the placement of proppant in the subsurface, a volume-based proppant trapping model is used. The volume-based proppant trapping model may factor in parameters associated with the subsurface, parameters associated with the proppants, and user parameters, such as the total volume of proppant along the fracture surface, thereby assisting in hydraulic fracturing.
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公开(公告)号：US11987745B2
公开(公告)日：2024-05-21
申请号：US18332821
申请日：2023-06-12
Inventor： Kevin A. Harnsberry , Paul Scott Northrop
Abstract: Solvent mixtures for downhole elemental sulfur removal and formation stimulation, and methods for utilizing such solvent mixtures, are described herein. One method includes providing a solvent mixture that includes an elemental sulfur solvent fraction and an odorant fraction that includes a lactate ester solvent. The method also includes injecting the solvent mixture into a hydrocarbon well such that the elemental sulfur solvent fraction of the solvent mixture dissolves elemental sulfur deposited on well components, and contacting the solvent mixture with water such that the lactate ester solvent within the odorant fraction reacts with the water to generate lactic acid. The method further includes stimulating a formation through which the hydrocarbon well extends by flowing the solvent mixture including the lactic acid through the hydrocarbon well and into the formation.
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公开(公告)号：US20240157283A1
公开(公告)日：2024-05-16
申请号：US18504380
申请日：2023-11-08
Inventor： Bennett D. MARSHALL , Simon C. WESTON , Aaron W. PETERS
IPC: B01D53/06
CPC classification number: B01D53/06 , B01D2256/10 , B01D2257/504 , B01D2259/4009 , B01D2259/404
Abstract: Systems and methods are provided for using a multi-stage capture process for capture of CO2 from air. A first or initial sorption process is used to sorb CO2 from air. After sorption from the air is complete, the desorption step of the initial stage is used to form a secondary CO2-containing stream that is passed into one or more additional sorption stages. This secondary CO2-containing stream can be at a concentration of roughly 1.0 vol % or more. Sorption of CO2 from the secondary CO2-containing stream is performed using a different contacting method, such as a contacting method that is higher efficiency. The second or later CO2 sorption stage can produce a CO2-containing output stream with a CO2 concentration of 80 vol % or more, or 90 vol % or more, or 95 vol % or more. This high purity output stream can then be sequestered and/or used for further processing.
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公开(公告)号：US11978931B2
公开(公告)日：2024-05-07
申请号：US17173786
申请日：2021-02-11
Inventor： Christopher Howard , Brandon J. O'Neill , Paul J. Rubas , Frank Hershkowitz , Lu Han , Lawrence J. Novacco , Frank J. Dobek, Jr. , Keith E. Davis , Brian Bullecks
IPC: H01M8/04082 , H01M8/04089 , H01M8/244 , H01M8/2485
CPC classification number: H01M8/04201 , H01M8/04089 , H01M8/244 , H01M8/2485
Abstract: Molten carbonate fuel cell configurations are provided that allow for introduction of an anode input gas flow on a side of the fuel cell that is adjacent to the entry side for the cathode input gas flow while allowing the anode and cathode to operate under co-current flow and/or counter-current flow conditions. It has been discovered that improved flow properties can be achieved within the anode or cathode during co-current flow or counter-current flow operation by diverting the input flow for the anode or cathode into an extended edge seal region (in an extended edge seal chamber) adjacent to the active area of the anode or cathode, and then using a baffle to provide sufficient pressure drop for even flow distribution of the anode input flow across the anode or cathode input flow across the cathode. A second baffle can be used to create a pressure drop as the anode output flow or cathode output flow exits from the active area into a second extended edge seal region (in a second extended edge seal chamber) prior to leaving the fuel cell.
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Patent Agency Ranking
公开(公告)号：US11976251B2
公开(公告)日：2024-05-07
申请号：US16953074
申请日：2020-11-19
Inventor： Gary Christensen , David A. Racke , Mark Sitko
IPC: C10M145/34 , C10M111/04 , F16C3/02 , F16J15/16 , C10N20/02 , C10N20/04 , C10N30/02 , C10N30/18
CPC classification number: C10M145/34 , C10M111/04 , F16C3/02 , F16J15/162 , C10M2209/1075 , C10N2020/02 , C10N2020/04 , C10N2030/02 , C10N2030/18 , F16C2202/02 , F16C2202/20 , F16C2204/00 , F16C2204/60 , F16C2206/40 , F16C2208/00 , F16C2208/10 , F16C2300/02
Abstract: This disclosure relates to a method for controlling lubrication of a rotary shaft seal. The method involves providing an apparatus having a bulk lubricating oil reservoir, a rotary shaft that passes through the bulk lubricating oil reservoir, and a rotary shaft seal. The rotary shaft seal has a sealing edge in proximity with the rotary shaft creating a contact zone. The contact zone has a film of lubricating oil. The method also involves increasing the rate of heat flow along the rotary shaft to reduce temperature of the film of lubricating oil in the contact zone. Increasing the rate of heat flow along the rotary shaft is accomplished by using rotary shaft materials of construction having sufficient high thermal conductivity, rotary shaft coatings having sufficient high thermal conductivities, or increasing the surface area of the rotary shaft. This disclosure also relates to a method for controlling heat transfer in a contact zone, and a method for improving performance of an apparatus.
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57.发明公开公开(公告)号：US20240132769A1
公开(公告)日：2024-04-25
申请号：US18547993
申请日：2022-02-03
Inventor： Glenn PENNY , Vishwas GUPTA , Sai Sashankh RAO , Nicklay M. KOSTOV , Qian WU
Abstract: Embodiments described herein provide enhanced low-density hollow glass bead (HGB) fluids, as well as methods for utilizing such HGB fluids for wellbore drilling operations, completion operations, and workover operations. Such low-density HGB fluids include the following combination of constituents: a base oil, an oil viscosifying agent, HGBs at a concentration in a range between 20 vol % and 60 vol %, an organophilic clay, a clay activator, a surfactant, and (optionally) an H2S scavenger. Moreover, the low-density HGB fluids are suitable for use as lower-density cap fluids for pressurized mudcap drilling (PMCD) operations, alternative drilling fluids for managed pressure drilling (MPD) operations, alternative drilling fluids for conventional drilling operations corresponding to very-low-pressure or highly-depleted reservoirs, and/or lightweight fluids for wellbore workover operations.
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58.发明授权公开(公告)号：US11953637B2
公开(公告)日：2024-04-09
申请号：US17248567
申请日：2021-01-29
Inventor： Sha Miao , Yifei Xu , Hao Huang , Scarlet A. Castro
CPC classification number: G01V1/302 , G01V1/282 , G01V1/345 , G01V20/00 , G06F30/20 , G06T17/05 , G06T17/20 , G01V2210/642 , G01V2210/643
Abstract: Geologic modeling methods and systems may use design-space to design-space mapping to facilitate simulation grid generation for multiple interpretations of a subsurface region. As one example, one or more embodiments of a geologic modeling method may comprise: obtaining first and second geologic models having different structural interpretations of a subsurface region; mapping each of the geologic models to associated design space models representing an unfaulted subsurface region; determining a design-to-design space mapping from the first design space model to the second design space model; using said mapping to copy parameter values from the first design space model to the second of the design space model; gridding each of the design space models to obtain design space meshes; partitioning cells in the first and second design space meshes along faults; reverse mapping the partitioned design space meshes to the physical space to obtain first and second physical space simulation meshes.
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公开(公告)号：US11952887B2
公开(公告)日：2024-04-09
申请号：US17658856
申请日：2022-04-12
Inventor： Michael C. Romer , Michael C. Tschauner , Christopher C. Frazier , Andrew D. McFadden , Salvador G. Vela, III , Billy-Bob K. Walker , Adam J. Johnson
IPC: E21B47/12 , E21B43/12 , E21B47/008 , E21B47/092
CPC classification number: E21B47/12 , E21B43/122 , E21B47/008 , E21B47/092
Abstract: A plunger lift system, as well as a method for monitoring plunger parameters within a wellbore using such a plunger lift system, are provided. The plunger lift system includes a lubricator attached to a wellhead at the surface and a plunger dimensioned to travel through the production tubing upon being released from the lubricator. The plunger lift system also includes magnetic sensor systems installed along the production tubing, where each magnetic sensor system includes a magnetic sensor for detecting the passage of the plunger as it travels through the production tubing, as well a communication device for transmitting communication signals between the magnetic sensor systems and a computing system located at the surface, where the computing system includes a processor and a non-transitory, computer-readable storage medium including computer-executable instructions that direct the processor to dynamically determine the plunger position and/or velocity based on the received communication signals.
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公开(公告)号：US11945736B2
公开(公告)日：2024-04-02
申请号：US17168112
申请日：2021-02-04
Inventor： Gregory R. Johnson , Everett J. O'Neal , Sarah E. Feicht
CPC classification number: C02F1/46109 , B01D53/326 , B01D61/423 , B01D61/461 , B01D2257/504 , B01D2313/08 , B01D2313/26 , C02F2001/46166 , C02F2201/46135 , C02F2209/06
Abstract: The present disclosure relates to methods and systems for algae cultivation including the integration of electrochemical carbonate production for enhancing algae growth. More particularly, the present disclosure relates to methods and systems for producing a sodium hydroxide from brine using an electrochemical cell, contacting the sodium hydroxide stream with a CO2 gas sweep and producing a carbonate stream, and cultivating an algae slurry in a cultivation vessel comprising at least a portion of the carbonate stream.
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