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41.发明公开公开(公告)号：US20240241090A1
公开(公告)日：2024-07-18
申请号：US18557718
申请日：2022-04-19
Inventor： Chun ZHU , Mirela DUMITRESCU , Cara L. DAVIS
CPC classification number: G01N30/7206 , E21B49/08 , G01N30/88 , G01N33/2823 , G01N33/2835 , G01N2030/025 , G01N2030/8854
Abstract: A method for determining geologic age of hydrocarbon samples, such as oils, using novel age biomarkers may comprise: measuring a concentration or related value of triaromatic dionsteranes (TAD) in a hydrocarbon sample, migrated oil sample, from a North Atlantic conjugate margin (NAM); calculating a TAD index for the hydrocarbon sample based on the concentration or the related value of the TAD; and predicting an age of the hydrocarbon sample based on a correlation between a hydrocarbon age and the TAD index.
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公开(公告)号：US12037562B2
公开(公告)日：2024-07-16
申请号：US17904254
申请日：2021-01-14
Inventor： Haris Junuzovic , Douglas E. Deckman , Benjamin D. Eirich
IPC: C10M169/04 , C10M101/00 , C10M107/02 , C10M111/04 , C10M129/74 , C10M133/44 , C10M139/00 , C10M141/12 , C10M145/28 , C10M161/00 , C10N20/02 , C10N30/00 , C10N30/02 , C10N30/04 , C10N40/25
CPC classification number: C10M169/044 , C10M101/00 , C10M107/02 , C10M111/04 , C10M129/74 , C10M133/44 , C10M139/00 , C10M141/12 , C10M145/28 , C10M161/00 , C10M2203/003 , C10M2205/0206 , C10M2207/283 , C10M2209/104 , C10M2215/30 , C10M2227/061 , C10N2020/02 , C10N2030/02 , C10N2030/04 , C10N2030/54 , C10N2030/74 , C10N2040/25
Abstract: Provided is an engine oil lubricant composition with improved fuel efficiency. The engine oil lubricant composition may include: a polyalpha olefin base oil component an amount of about 50 wt % to about 90 wt % based on a total weight of the engine oil lubricant composition, wherein the polyalpha olefin base oil component is a Group IV base oil and has a Noack volatility of about 12.5% to about 15%; a Group II base oil component in an amount of about 0.1 wt % to about 50 wt % based on the total weight of the engine oil lubricant composition. The engine oil lubricant composition may have (i) a kinematic viscosity at 100° C. of about 10 cSt or less, (ii) a high temperature high shear viscosity at 150° C. of about 2.2 cP or less, and (iii) a Noack volatility of about 20% or less.
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43.发明公开公开(公告)号：US20240228857A9
公开(公告)日：2024-07-11
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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公开(公告)号：US20240210583A1
公开(公告)日：2024-06-27
申请号：US18507295
申请日：2023-11-13
Inventor： Kelvin I. AMALOKWU , Brian R. CRAWFORD , Ripudaman MANCHANDA , Gauthier D. BECKER
CPC classification number: G01V1/282 , G06F17/18 , G01V2210/6242 , G01V2210/667
Abstract: Methods of generating a parameter realization, for a subsurface parameter, as a function of depth within a subsurface region are disclosed herein. The methods include dividing a subsurface parameter profile for the subsurface region into a plurality of adjacent stratigraphic units. The methods also include splitting each stratigraphic unit of the plurality of adjacent stratigraphic units into a plurality of stratigraphic unit layers. The methods further include determining a layer parameter value range for each stratigraphic unit layer of the plurality of stratigraphic unit layers and for each stratigraphic unit. The methods also include, within each stratigraphic unit layer, selecting a corresponding layer parameter value from within the layer parameter value range. The methods further include generating the parameter realization by assigning the corresponding layer parameter value to the parameter realization for a corresponding layer depth range of each stratigraphic unit layer.
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公开(公告)号：US12012561B2
公开(公告)日：2024-06-18
申请号：US17820147
申请日：2022-08-16
Inventor： Matthew J. Vincent , Keith H. Kuechler
IPC: C10G69/12 , B01D3/14 , C07C1/24 , C07C2/08 , C07C2/12 , C07C5/03 , C07C7/04 , C07C7/08 , C10L1/08
CPC classification number: C10G69/126 , B01D3/14 , B01D3/143 , C07C1/24 , C07C2/08 , C07C2/12 , C07C5/03 , C07C7/04 , C07C7/08 , C10L1/08 , C07C2529/85 , C07C2529/89 , C10G2300/1092 , C10G2300/301 , C10G2400/08 , C10L2270/04
Abstract: A method for producing an isoolefinic stream may include: oligomerizing an ethylene stream to a C4+ olefin stream in a first olefin oligomerization unit comprising a serial reactor and a lights removal column, wherein the C4+ olefin stream contains no greater than 10 wt % of methane, ethylene, and ethane combined; and wherein the ethylene stream contains at least 50 wt % ethylene, at least 2000 wppm ethane, no greater than 1000 wppm of methane, and no greater than 20 wppm each of carbon monoxide and hydrogen; and oligomerizing the C4+ olefin stream and a propylene/C4+ olefin stream in a second oligomerization unit to produce the isoolefinic stream.
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Patent Agency Ranking
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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