Patents Assigned to Petroleo Brasileiro S.A.
  • Publication number: 20240229605
    Abstract: The present invention relates to a method for applying scale inhibitor to completion fluids during injectivity test operations. Said method takes advantage of the completion fluid to inhibit scaling in the reservoir by filling the porous spaces of the reservoir rock with the inhibited completion fluid. When the well is put into production, this inhibited fluid positioned inside the reservoir will be produced together with the oil and will inhibit the formation of scale inside the reservoir and on production equipment.
    Type: Application
    Filed: October 24, 2023
    Publication date: July 11, 2024
    Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: MARIO GERMINO FERREIRA DA SILVA, VALTAIR MARCOS CRISTANTE, FERNANDO ANTONIO MOREIRA DA SILVA, CIRO DOS SANTOS GUIMARAES
  • Publication number: 20240230010
    Abstract: The present invention relates to devices and methods for containing gas leaks in pipelines. In particular, the present invention describes a device for eliminating gas leaks by sealing a gas leak in an expansion joint arranged between two pipes misaligned with each other, the device comprising a metallic structure comprising a sealing blanket, in which the metallic structure and blanket fully enclose the expansion joint using cables. In addition, the present invention describes a gas leak elimination device for sealing a gas leak in an expansion joint arranged between two aligned pipes, the device comprising a sealing blanket, steel cables, straps and fastening elements to fully enclose the expansion joint.
    Type: Application
    Filed: October 20, 2023
    Publication date: July 11, 2024
    Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Elbert Fernando Martins Coelho, Wagner Henrique Saldanha
  • Publication number: 20240229989
    Abstract: A sealing ring positioning device that, operated by a remotely operated vehicle (ROV), allows sealing rings to be installed, in the subsea environment, in a groove of a flange of a first pipeline to be interconnected to a second pipeline. The sealing ring positioning device is provided with an upper portion that is presented as a handle by which the ROV handles the device in a subsea environment, a lower portion having a semicircle shape and configured to hold the sealing ring to be arranged in the flange groove in a subsea environment, and a middle portion including a groove holding a magnet that is configured to hold the device firmly positioned in the pipeline in a subsea environment, during the arrangement of the ring in the groove of the flange.
    Type: Application
    Filed: October 18, 2023
    Publication date: July 11, 2024
    Applicant: Petróleo Brasileiro S.A. -Petrobras
    Inventor: ANDRE LUIZ BEVILAQUA SANTANA
  • Publication number: 20240230617
    Abstract: The present invention proposes a process for extracting and determining nitrogenous and acidic compounds in various types of petroleums, derivatives or thermal degradation products, and in process waters before the production/refining phase. When the methodology is applied to petroleum and byproducts, the process comprises the extraction steps (1); separation (2); pre-concentration (3); and analysis (4). When the methodology is applied to thermal degradation products, there is a need for a previous step to simulate the heating of petroleum containing different chemicals (if necessary) with the purpose of promoting thermal degradation of the species present and of the petroleum, and generating nitrogen compounds with simpler composition.
    Type: Application
    Filed: October 18, 2023
    Publication date: July 11, 2024
    Applicants: PETRÓLEO BRASILEIRO S.A. - PETROBRAS, SERVIÇO NACIONAL DE APRENDIZAGEM INDUSTRIAL SENAI
    Inventors: ROGERIO MESQUITA DE CARVALHO, SERGIO NOBORU KURIYAMA, ANDRE LUIZ CASTRO BONFIM, ANTÔNIO AUGUSTO FIDALGO NETO, SAMUEL DE OLIVEIRA SILVA, GIOVANNI BRESSIANI PEDROSO
  • Publication number: 20240229990
    Abstract: The present invention aims at solving the difficulty of coupling a subsea torque tool, which is usually used by ROVs, to the nuts of cases used to join flanges in pipelines and pipes. In this way, a nut guide (3) is proposed, which is used in pre-assembly and which is coupled to the nut (2) through an adhesive means or any other appropriate joining means, wherein the torque tool is quickly and smoothly guided to the ideal position for tightening or loosening the flanges by using the screw (1) and nut (2) assembly, facilitating the fitting and minimizing the number of alignment maneuvers between the torque tool and the nut (2).
    Type: Application
    Filed: October 24, 2023
    Publication date: July 11, 2024
    Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRAS
    Inventor: CARLOS AMERICO VEIGA DAMASCENO, JR.
  • Publication number: 20240230603
    Abstract: The present invention describes a system and method for analyzing carbon isotope ratio in natural gas. Said system comprises a sample injection vessel (1), a chromatograph (2) comprising a first chromatographic column (3) and a second chromatographic column (5), in which a combustion reactor (4) is presented between said first and second chromatographic columns, external to the chromatograph (2), and in which an isotope ratio mass spectrometer (6) is connected to the output of the second chromatographic column (5) and feeds the data system (7) with the results found for the sample in order to generate the chromatogram. In a second modality, the method of analyzing the carbon isotopic ratio in natural gas comprises the use of said system, which allows greater separation between the nitrous oxide and carbon dioxide components, eliminating the interferences found in the state of the art.
    Type: Application
    Filed: December 22, 2023
    Publication date: July 11, 2024
    Applicant: PETRÓLEO BRASILEIRO S.A. – PETROBRAS
    Inventors: MARCELO RIBEIRO COSTA, GABRIEL MORAES SILVA, TULIO ALVES FREIRE, ALEXANDRE DE ANDRADE FERREIRA
  • Publication number: 20240229840
    Abstract: A device for removing misalignments between flanges of pipeline ends. More specifically, a device that, operated by an ROV, allows flange holes at the ends of subsea pipelines to be aligned so that interconnection operations between said pipelines can be embodied. To this end, the device described herein comprises an elongated metallic body having at least two diameters and presenting a gradual reduction between the component diameters. Additionally, a fixed nut is mounted on the larger diameter side of the elongated body, followed by a manipulator for administration by the ROV. On the other hand, a movable nut is mounted on the smaller diameter side of the elongated body, and the tightening movement made by the ROV on this movable nut causes the device to pass through the holes to be aligned, precisely, in the direction of the larger diameter of the device of the invention.
    Type: Application
    Filed: October 18, 2023
    Publication date: July 11, 2024
    Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRAS
    Inventor: ANDRE LUIZ BEVILAQUA SANTANA
  • Publication number: 20240229973
    Abstract: The present invention relates to a structure and method of hoisting pipelines for subsea connection assisted by a remotely operated vehicle, ROV. Particularly, the present invention describes a pipeline hoisting structure comprising three beams joined together in a U-shape, and two hoisting systems, each being coupled to one of the vertical beams of the hoisting structure.
    Type: Application
    Filed: October 25, 2023
    Publication date: July 11, 2024
    Applicant: Petróleo Brasileiro S.A. - Petrobras
    Inventor: Andre Luiz Bevilaqua Santana
  • Patent number: 12030039
    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.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: July 9, 2024
    Assignees: PETROLEO BRASILEIRO S.A.—PETROBRAS, UNIVERSIDADE FEDERAL DO ESTADO DO RIO DE JANEIRO
    Inventors: Jean Guillaume Eon, Sabrina Sanches Guimaraes, Bernardo Galvao Siqueira
  • Publication number: 20240219022
    Abstract: The present invention relates to a method of controlling a flare gas recovery system, which meets all possible operational scenarios in a primary oil processing plant in a completely continuous, stable and transparent manner for the operator. In particular, the steps performed in the method proposed here include Initialization and Checking the availability of the main compressor, and Monitoring the system inlet pressure and Adjusting the compressor request. More precisely, the method described by the present invention is capable of operating in four operating modes, which comprise: a) a volume accumulation scenario for startup, referring to a system switched on with no compressor yet operating; b) a low burn scenario, referring to a system connected with a single compressor in operation; c) a high burn scenario, referring to a system connected with two compressors in operation; and d) a scenario of high sequential burns, referring to a system connected in “switch mode” between compressors.
    Type: Application
    Filed: December 22, 2023
    Publication date: July 4, 2024
    Applicant: PETRÓLEO BRASILEIRO S.A. – PETROBRAS
    Inventor: ANDRE LUIZ MACHADO DE OLIVEIRA
  • Publication number: 20240216857
    Abstract: The present invention relates to a method for manufacturing a deliquescent desiccant material, preferably for the dehydration of natural gas, which comprises the steps of (a) preparing a solution comprising water, alcohol, a weak base and a deliquescent salt; (b) stirring the solution obtained in (a) until complete dissolution of the deliquescent salt; (c) adding a silica precursor to the solution obtained in (b), and stirring for sufficient time for the mixing to be complete; and (d) keeping the solution obtained in (c) in an oven, until the liquid has completely evaporated. The present invention also relates to a deliquescent desiccant material, and to the use of said material for drying gases.
    Type: Application
    Filed: December 22, 2023
    Publication date: July 4, 2024
    Applicants: PETRÓLEO BRASILEIRO S.A. – PETROBRAS, UNIVERSIDADE FEDERAL DE MINAS GERAIS - UFMG
    Inventors: WANDER LUIZ VASCONCELOS, LEONARDO DOS SANTOS PEREIRA, JÉSSICA DE OLIVEIRA NOTÓRIO RIBEIRO, JAILTON FERREIRA DO NASCIMENTO, DANIELA CORDEIRO LEITE VASCONCELOS, PRISCILA CRISTH FONSECA ALVES, DARLEY CARRIJO DE MELO, DÉBORA GUIMARÃES DA SILVA
  • Patent number: 12025249
    Abstract: A telescopic joint for connecting two pipes in a separating vessel of a fluid catalytic cracking unit includes a first pipe and a second pipe; wherein the two pipes are connected together at their ends by a sliding ring comprising a first portion extending substantially parallel to the first and second pipes, and a second portion extending substantially perpendicular to the first and second pipes, to thereby form an L profile; the first pipe comprises a fitting seat fixed at its end, and a flanged ring, the flanged ring and the fitting seat being configured to surround at least partially the second portion of the sliding ring; and the telescopic joint comprises a first plurality of gaskets positioned in a first space between the second portion of the sliding ring and the fitting seat and distributed in a direction parallel to the second portion of the sliding ring.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: July 2, 2024
    Assignee: PETROLEO BRASILEIRO S.A.-PETROBRAS
    Inventors: Raphael Coelho Schiavo, Paulo Sergio Freire, Nelson Patricio Junior, Emanuel Freire Sandes, Diana Albani Siqueira
  • Publication number: 20240210284
    Abstract: The present invention describes a device with a jig for cutting clay mineral slides oriented for analyses of the X-ray diffractometry technique. The device speeds up the preparation of the clay mineral slide and guarantees the standardization of the final size of the material, for subsequent fitting into the holder of the manufacturer of the X-ray Diffraction (XRD) equipment. The device of the present invention can be manufactured from polyacetal and basically comprises at least one fixing screw, at least one orientation guide base and at least one removable holder. The device can be fully applied to any XRD analysis that is performed on glass slides. Examples of interested parties are the mining, cement and oil industries and other fields of exploration of mineral resources.
    Type: Application
    Filed: December 22, 2023
    Publication date: June 27, 2024
    Applicant: PETRÓLEO BRASILEIRO S.A. – PETROBRAS
    Inventors: CAMILA WENSE RAMNANI, RENATA ALVES MOTA, FABIANO GALDINO LEAL, YARO MOISES PARIZEK SILVA
  • Publication number: 20240212119
    Abstract: The present invention relates to a method for assessing the quality of LWD (Logging While Drilling) image logs, comprising the processing of a plurality of LWD image logs; subdividing the LWD image logs into smaller pseudo-images of the same size; performing the normalization of each pseudo-image of the LWD image logs; and classifying the LWD image log according to its quality, which comprises classifying a plurality of sections of the LWD image log into three quality categories, including: good, medium or poor, using a trained neural network model for quality assessment of the LWD image log.
    Type: Application
    Filed: December 21, 2023
    Publication date: June 27, 2024
    Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBAS
    Inventors: Ciro Dos Santos Guimaraes, Ralph Engel Piazza
  • Patent number: 12017915
    Abstract: The present invention refers to processes for obtaining steam reforming catalysts containing nickel, cerium, lanthanum and copper oxides, free from potassium or alkali metals, preferably with the oxide layer being located externally with a thickness of less than 0.5 mm on the support particle, preferably the support being based on alumina, magnesium aluminate, hexaaluminates or mixtures thereof. The catalysts according to present invention show high activity, resistance to thermal deactivation and resistance to coke accumulation in the steam reforming reaction of hydrocarbons.
    Type: Grant
    Filed: August 11, 2021
    Date of Patent: June 25, 2024
    Assignee: PETROLEO BRASILEIRO S.A.—PETROBRAS
    Inventor: Roberto Carlos Pontes Bittencourt
  • Patent number: 12017199
    Abstract: The present invention is in relation to a process for preparing calcium phosphate-based sulfated adsorbents that capture mercury in gas streams, comprised of the steps of synthesis of the precursors, incorporation of a transition metal, and sulfation of the material. These adsorbents present high efficiency both for removal of low concentrations of mercury, such as in natural gas, and for stabilization of this pollutant. The adsorbents obtained in the invention may be used in the Mercury Removal Units (MRUs) present in natural gas processing plants, which mercury removal units may be located either upstream or downstream of the dehydration and H2S removal units, due to the adsorbents obtained showing resistance to H2S poisoning, and maintaining their performance in the presence of water.
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: June 25, 2024
    Assignees: PETROLEO BRASILEIRO S.A.—PETROBRAS, UNIVERSIDADE FEDERAL DO RIO DE JANEIRO—UFRJ
    Inventors: Vera Maria Martins Salim, Jailton Ferreira Do Nascimento, Neuman Solange De Resende, Carla Luciane Manske Camargo, Amanda Gerhardt De Oliveira Ferreira
  • Patent number: 12012560
    Abstract: The present invention refers to the processing of a 100% renewable load in FCC units, wherein the load comprises triglycerides of vegetable and animal source, free fatty acids, fatty acid esters, ketones, alcohols and long-chain aldehydes, using catalyst and appropriate operating conditions in order to obtain 100% renewable products with a high content of aromatic compounds, in the range of naphtha, kerosene, diesel and heavy gas oil. The product thus obtained complies with all the properties of the ASTM D1655 standard, even for contents of up to 10% renewable content. In addition, there is no need to reduce the freezing point of the fossil QAV for the introduction of the renewable component, with no impact on the yield and economy of the process.
    Type: Grant
    Filed: December 6, 2022
    Date of Patent: June 18, 2024
    Assignee: Petróleo Brasileiro S.A.—Petrobras
    Inventors: Jose Luiz Zotin, Marcelo Edral Pacheco, Rodrigo Caetano Chistone, William Richard Gilbert, Isa Santos Duarte, Andrea De Rezende Pinho, Jefferson Roberto Gomes
  • Patent number: 12000249
    Abstract: A system and method for inhibiting or removing scaling in wells equipped with intelligent completion (IC), including sealing failures, includes a mixture of viscous gel and solid material in different granulometries is used and spheres soluble in water and in oil. The system and method aim to maintain production of wells equipped with intelligent completion and aim to reduce costs in relation to operations commonly performed with rigs.
    Type: Grant
    Filed: June 8, 2022
    Date of Patent: June 4, 2024
    Assignee: Petróleo Brasileiro S.A.—Petrobras
    Inventors: Mario Germino Ferreira da Silva, Francisca Ferreira do Rosario, Alexandre Zacarias Ignacio Pereira, Rosane Alves Fontes, Maylton Freitas da Silva, Rita de Cassia Comis Wagner
  • Patent number: 12000218
    Abstract: In order to achieve the objects described above, the present invention provides an adapter tool for coupling a ben stiffener with interface for bell mouths of models with connection type BSN900E in a diverless bell mouth (BSDL), consisting of a adapter split ring (1), guide pin holes (C), fastener eyes (D), and through holes (E). The adapter tool is capable of keeping interchangeability and flexibility between projects or project phases, even if different bellmouth models are used. The interconnection method between the helmet (9) and the adapter split ring (1) can be done by direct attachment by bolt, or by attachment by ring/rod support. Both interconnections can be made on board a flexible line launching vessel, in the case of reusing lines from other projects, or at the factory, in the case of sharing new flexible lines.
    Type: Grant
    Filed: December 13, 2021
    Date of Patent: June 4, 2024
    Assignee: PETRÓLEO BRASILEIRO S.A.—PETROBRÁS
    Inventors: Flavio Barroso De Mello, Bruno Pinho Dos Reis, Vinicius Gasparetto
  • Publication number: 20240175536
    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.
    Type: Application
    Filed: February 2, 2024
    Publication date: May 30, 2024
    Applicants: PETROLEO BRASILEIRO S.A. - PETROBRAS, IPT - lnstituto de Pesquisas Tecnologicas do Estado de Sao Paulo S/A
    Inventors: Murilo COSTA MONTEIRO, Bertrando RIBEIRO RABELO, Daniel DE ALMEIDA PEREIRA, Mario Henrique FERNANDES BATALHA, Leandro APARECIDO DA SILVA ALBINO, Alessandro GUIMARAES