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公开(公告)号：US12030039B2
公开(公告)日：2024-07-09
申请号：US17413817
申请日：2019-12-16
Applicant: PETROLEO BRASILEIRO S.A.—PETROBRAS , UNIVERISDADE FEDERAL DO ESTADO DO RIO DE JANEIRO—UFRJ
CPC classification number: B01J27/1806 , B01J37/031 , B01J37/04 , B01J37/08 , C07C5/48
Abstract: The present invention refers to catalysts that are selective for the reaction of ODH of propane to propene. Said catalysts are potassium salts of the dodecatungstophosphate ion partially substituted with vanadium and niobium, or mixed oxides of W, V, and Nb, with a tungsten bronze structure, obtained by thermal decomposition of polyoxometalate salts with a Keggin structure.
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82.发明公开公开(公告)号：US20240175536A1
公开(公告)日：2024-05-30
申请号：US18431123
申请日：2024-02-02
Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS , IPT - lnstituto de Pesquisas Tecnologicas do Estado de Sao Paulo S/A
Inventor： Murilo COSTA MONTEIRO , Bertrando RIBEIRO RABELO , Daniel DE ALMEIDA PEREIRA , Mario Henrique FERNANDES BATALHA , Leandro APARECIDO DA SILVA ALBINO , Alessandro GUIMARAES
CPC classification number: F16L57/06 , F16L57/005
Abstract: This invention encompasses a system and a method used in the petrochemical and mechanical engineering area, more specifically in the area of protecting pipes or similarly shaped objects against external or internal damage or wear, which comprises a protective system for the ends and the inside of coated pipes, using the coating itself and other additional devices. The system is comprised of a cup (1), spacer (2), coating (3), external ring (4), and cap (5) used in the production line of the pipe-coating process, using the external coating itself, preventing corrosion and mechanical damage at the ends/bevel, in the sandblasted area of the collar and internal surface, from storage and transport to the location where it will be used, and welding in the field or on the vessel.
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公开(公告)号：US11965580B2
公开(公告)日：2024-04-23
申请号：US17862589
申请日：2022-07-12
Inventor： Milena Watanabe Bavaresco , Thiago Da Silva , Gabriel De Almeida Pereira , Alex Geraldo Rodrigues Do Pilar , José Eduardo Gubaua , Jucélio Tomás Pereira , Eduardo Márcio De Oliveira Lopes , Carlos Alberto Bavastri , Jorivaldo Medeiros , Rodrigo Andre Hoppe , Joilson De Souza Rangel Junior , Claudio De Oliveira Mendonça , Carlos Akio Soki , Andre Albuquerque Thomas E Brandão
CPC classification number: F16F7/112 , F16F2222/08 , F16F2228/066 , F16F2232/08 , F16F2234/02
Abstract: A dynamic viscoelastic vibration neutralizer for industrial pipes includes a metallic housing, to which the shaft supports are fixed, by screws. The supports of the viscoelastic pieces and the supports of the housing itself, allow the junction of the device with the system to be controlled. An oscillating mass, fixed in the center of a metallic shaft, is supported by the shaft supports. two sets of viscoelastic pieces, are fixed by one of their ends to the supports of the viscoelastic pieces and by the other to the oscillating mass.
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公开(公告)号：US11702889B2
公开(公告)日：2023-07-18
申请号：US17698724
申请日：2022-03-18
Applicant: PETROLEO BRASILEIRO S.A.—PETROBRAS
Inventor： Joseir Gandra Percy , Roni Abensur Gandelman , Guilherme Ribeiro Magalhaes , Emilio Cesar Cavalcante Melo Da Silva , Guilherme Siqueira Vanni , Augusto Borella Hougaz , Joao Carlos Ribeiro Placido , Hugo Francisco Lisboa Santos
Abstract: The present invention refers to a method of drilling a marine wellbore with fluid reverse circulation without using drilling riser tubulars. In reverse circulation drilling, the fluid return with gravels occurs inside the drill string (17) and the injection of clean fluid is done through the annular of the well, so that, having a rotating head over the BOP (19), or inside it, the use of riser tubulars as a flow line for the fluid return with gravels is disposed, using instead the drill string (17).
For the kill and choke lines, as well as for fluid injection, rigid or flexible lines can be used, eliminating the need to use drilling risers, thus releasing large load capacity and space on the probe. The method of this invention also eliminates the need for large volumes of fluid to fill entire riser tubulars. The entire operation can be done without the need for subsea pumps or concentric columns. Additionally, the invention makes the operation of lowering the drilling riser tubulars unnecessary, which lasts for days and has a high cost. Finally, for dual activity probes, the arrangement allows the use of the two towers even after connecting the BOP (19), something that is not possible with the use of drilling riser tubulars. Therefore, operations such as mounting and lowering the casing in the water depth can be carried out in parallel with the drilling of the phase, allowing a significant additional gain of time.-
公开(公告)号：US11598665B2
公开(公告)日：2023-03-07
申请号：US17554684
申请日：2021-12-17
Applicant: PETROLEO BRASILEIRO S.A.-PETROBRAS , INSTITUTO DE TECNOLOGIA PARA O DESENVOLVIMENTO-LACTEC
Inventor： Luiz Fernando Almeida Fontenele , Hugo Tavares Vieira Gouveia , Gelson Luiz Carneiro , Paulo Henrique Fernandes Ferreira , Rodrigo Dias , Vilson Rodrigo Mognon , Bruno Marchesi , Cleber Onofre Inacio , Carlos Ademar Purim
IPC: G01J1/44 , H02S40/38 , H04N5/225 , G01C9/24 , G01S19/01 , G06N3/08 , H04N5/77 , H04M1/72403 , G01J1/42 , H02J7/35
Abstract: The present invention relates to alternative equipment for solar energy prospecting with a focus on low cost, low complexity in installation, operation and maintenance, and high reliability. A low-cost solarimetric station consists of compact equipment capable of providing global irradiance measurements and estimates for direct and diffuse components, as well as hemispheric photographs, with acceptable levels of uncertainty. The pyranometer periodically provides global irradiance information to the system, and the camera records photos of the sky. Using machine learning algorithms, and based on that information, the equipment provides estimates for direct and diffuse irradiance components. The equipment has other meteorological sensors, GPS, and wireless communication facilities. The equipment has an energy supply and management system consisting of a photovoltaic module, charge controller, and battery, which provide the energy necessary for the station to operate.
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Patent Agency Ranking
公开(公告)号：US11506022B2
公开(公告)日：2022-11-22
申请号：US17044893
申请日：2019-04-04
Applicant: PETROLEO BRASILEIRO S.A.—PETROBRAS
Inventor： Ricardo Freire Grandi , Renan da Silva Costa , Otavio Campos de Araujo , Leonardo Marazzo Garcia , Kris Pernasetti Dunlop , Jose Ricardo Brigido de Moura Filho , Joao Paulo Sanseverino Abdu , Joao Marcelo Mussi Baptista , Gustavo Salgueiro de Oliveira , Giovani Ferreira Machado , George Souza Costa , Frederico Ferreira Chaves Vaz , Ednaldo Goncalves de Moura , Cristiane Koslinski , Carolina Bertholdo da Cunha , Aliel Faria Riente , Antonio Carlos Ramos Junior , Alexandre Campos Manhaes
Abstract: There is provided a method for well construction comprising the steps of: a first phase of the well construction, in which a bottom hole assembly, BHA, with a first drill is used for drilling, and a conductor casing is lowered into the well and cemented; a second phase of the well construction, in which a second drill is used for drilling, wherein a production adapter base, PAB, is installed in parallel with lowering a blowout preventer, BOP; and a third phase of the well construction in which a third drill is used for drilling, for the steps of landing and geonavigation inside a reservoir.
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公开(公告)号：US20220348849A1
公开(公告)日：2022-11-03
申请号：US17699369
申请日：2022-03-21
Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
Inventor： Joselito Barbosa MACIEL
Abstract: The present invention relates to a chemical product and process for cleaning nanofiltration and reverse osmosis membranes, based on enzymatic action aiming to remove biofouling and inorganic scale quickly. The product mentioned in present invention also proposes elimination of the neutralization step of the chemical product used, given that the enzymatic action allows an adequate pH for disposal to be maintained, which fact increases the speed and efficiency of the process.
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公开(公告)号：US20220348843A1
公开(公告)日：2022-11-03
申请号：US17540727
申请日：2021-12-02
Inventor： Carolina Rayanne BARBOSA DE ARAUJO , Dennys CORREIA DA SILVA , Guilherme MENTGES ARRUDA , Marcos ALLYSON FELIPE RODRIGUES , Alcides DE OLIVEIRA WANDERLEY NETO , Daniel Alberton Haas , Leonardo Alencar De Oliveira
Abstract: The present invention provides for obtaining microemulsion formulations without the presence of an oil phase for the removal of oil from solid surfaces, specifically in sandstone rocks. Oil impregnation on solid surfaces is a major challenge due to the need to purify environments affected by environmental disasters and accidents related to the oil and gas industry. Thus, the study and development of technologies capable of preventing or remedying the effects that oil contamination on solid surfaces can cause is justified, Several technologies present themselves as promising candidates for the remediation of contaminated surfaces, but many of them can have high execution costs, as in the case of classic microemulsions, or generation of secondary residues. The process of the present invention does not present these disadvantages, consisting of obtaining microemulsion systems containing nonionic surfactants of different degrees of ethoxylation (lauryl alcohol with 10, 8 and 6 ethoxylation bonds), short-chain alcohol (1-butanol) and distilled water for the extraction of heavy crude oil impregnated in sandstone rocks. The formulations presented are capable of using low active matter compositions, unlike classical microemulsions which, in most cases, require a high amount of surfactant.
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89.发明授权公开(公告)号：US11479728B2
公开(公告)日：2022-10-25
申请号：US17274647
申请日：2019-09-11
Applicant: PETROLEO BRASILEIRO S.A.—PETROBRAS
Inventor： Roberto Carlos Pontes Bittencourt
Abstract: The present invention relates to a process for preparing liquid hydrocarbons by the Fischer-Tropsch process integrated into refineries, in particular comprising recycling streams from the steam reforming hydrogen production process as the feedstock for the Fischer-Tropsch process.
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公开(公告)号：US11458649B2
公开(公告)日：2022-10-04
申请号：US16397069
申请日：2019-04-29
Applicant: PETROLEO BRASILEIRO S.A.—PETROBRAS , STATOIL BRASIL OLEO E GAS LTDA. , Universidade Federal de Minas Gerais—UFMG
Inventor： Wilson Mantovani Grava , Wander Luiz Vasconcelos , Peter Wilhelmus Jacques Derks , Jailton Ferreira do Nascimento , Eduardo Henrique Martins Nunes , Douglas Fernandes de Souza , Daniela Cordeiro Leite Vasconcelos
Abstract: This invention provides a de-molding system of ceramic parts manufactured by freeze-casting comprising a mold (9), wherein the mold (9) comprises an upper opening (95) and a lower opening (94), wherein the upper opening (95) is adapted to receive a colloidal suspension (92), and one of the openings is adapted to allow the passage of a manufactured ceramic part (92), characterized by comprising at least one main de-molding element (80) adapted to actuate a ceramic part manufactured (92) through an opening in the mold (9).
In addition, the invention provides a mold cooling system for the manufacturing of ceramic parts by freeze-casting comprising: a source (1) of cooling gas; a cooling gas cooling medium (7) fluidically connected to the cooling gas source (1); and a cooling cell (5), fluidly connected to the cooling gas cooling medium (7), comprising a mold (9) in its interior, wherein the cooling cell (5) comprises a refrigerated cooling gas injection opening. Thus, a mold cooling system is provided for the manufacturing of ceramic parts by freeze-casting comprising the stages of: refrigerating a cooling gas coming from a cooling gas source (1); and injecting a cooling gas that is refrigerated in a cooling cell (5) comprising a mold (9) in its interior.
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