Patents Assigned to Petróleo Brasileiro S.A. - Petrobras
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Publication number: 20220341834Abstract: The present invention relates to an apparatus for salt precipitation and scaling tests, which comprises two reagent storage tanks (2, 3), a reagent mixing module (6), induction period measurement modules (7, 12), an ultrasound-assisted precipitation module (9) and a scaling module with heat exchanger (13). From the apparatus, it is possible to carry out tests with the purpose of investigating the influence of parameters such as flow rate, temperature and concentration on salt precipitation and scaling. It is further possible to carry out tests under the action of ultrasound, since it promotes acceleration of chemical reactions.Type: ApplicationFiled: April 20, 2022Publication date: October 27, 2022Applicants: PETRÓLEO BRASILEIRO S.A. - PETROBRAS, UNIVERSIDADE FEDERAL DA BAHIAInventors: Iuri Muniz PEPE, Geydison Gonzaga Demetino, Andre Leibsohn Martins, Luiz Carlos Simões Soares Júnior, Marcus Vinicius Duarte Ferreira, Helga Elisabeth Pinheiro Schluter, Lucas Ramalho Oliveira, Bruno Barbosa Castro
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Publication number: 20220307322Abstract: 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.Type: ApplicationFiled: March 18, 2022Publication date: September 29, 2022Applicant: PETROLEO BRASILEIRO S.A. - PETROBRASInventors: 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
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Publication number: 20220290541Abstract: The present invention is related to artificial lifting systems and production flow assurance from subsea oil wells. In this sense, the present invention provides an integrated subsea oil heating and pumping system hydraulically actuated by heated injection water, the system comprising at least one recoverable pumping module (3) connected to a subsea base (6) which, in turn, receives the produced fluids from at least one subsea producing well (1). The subsea base (6) is connected to a production unit (10) through a riser (8) through which the produced oil flows and to an injection line (7) that feeds the pumping module (3) with water which, after activating the turbine (15) and pump (16) set, is injected through at least one injection well. The present invention further provides a hydraulically actuated subsea pumping method associated with the system described above.Type: ApplicationFiled: August 18, 2020Publication date: September 15, 2022Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRÁSInventors: Celso Cesar MOREIRA BRANCO, Tatiane SILVA VIEIRA, Jonatas RIBEIRO, Michele Cristina PEDROSO, Roberto RODRIGUES
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Publication number: 20220268138Abstract: This invention is related to a pneumatic lifting system for hydrocarbon production, comprising at least one mandrel (1) and at least one gas flow control valve (11), wherein the at least one mandrel (1) is connected to a production string (3), wherein the production string is positioned inside a well casing (2), wherein it comprises a straddle (10) supported on the production string and enveloping the mandrel, wherein in the region of the gas outlet (110) of the gas flow control valve (11) a chamber (105) is formed, wherein the straddle (10) comprises a means of fluidic communication (102) adapted to feed gas inside the straddle (10).Type: ApplicationFiled: August 8, 2019Publication date: August 25, 2022Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRASInventors: Carlos Alberto ALVES SAO MATEUS, Daniel CENTURION BARRIONUEVO, Alcino RESENDE DE ALMEIDA, Ricardo DOS SANTOS FRAGA
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Publication number: 20220186570Abstract: 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: ApplicationFiled: December 13, 2021Publication date: June 16, 2022Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRÁSInventors: Flavio Barroso DE MELLO, Bruno Pinho DOS REIS, Vinicius GASPARETTO
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Publication number: 20220168922Abstract: Provided is a mold cooling system for the manufacturing of ceramic parts by freeze-casting including: 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), including a mold (9) in its interior, wherein the cooling cell (5) includes a refrigerated cooling gas injection opening. Thus, a mold cooling system is provided for the manufacturing of ceramic parts by freeze-casting including 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) including a mold (9) in its interior.Type: ApplicationFiled: February 9, 2022Publication date: June 2, 2022Applicants: PETROLEO BRASILEIRO S.A. - PETROBRAS, STATOIL BRASIL OLEO E GAS LTDA., UNIVERSIDADE FEDERAL DE MINAS GERAIS - UFMGInventors: 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
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Publication number: 20220128512Abstract: This invention provides a system for detecting flooding in a flexible pipe from a connector of the flexible pipe, comprising: an ROV (3) comprising an arm element (18) designed to move an ultrasound sensor (13), until the ultrasound sensor (13) comes into contact with the connector (14) of the flexible pipe (17); and means for taking ultrasound measurements with respect to the state of the annulus of the flexible pipe (17) from a chamber of the connector of the flexible pipe (17) in contact with the annulus of the flexible pipe (17).Type: ApplicationFiled: September 20, 2019Publication date: April 28, 2022Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRASInventors: Paulo Roberto SANTOS POLI, Nei Mariano DA FONSECA JUNIOR, Marco Antonio DA SILVA, João Marcio DE CASTILHO SANTOS, Gustavo PINTO PIRES, Carlos Eduardo MAIA DE SOUZA
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Publication number: 20220111377Abstract: The present invention deals with catalysts for the conversion of CO by the shifting reaction of high temperature water gas, free from chromium and iron, consisting of alumina promoted by potassium, by zinc and copper oxides and in a second embodiment also additionally nickel. The catalysts thus prepared maintain high CO conversion activity, not having the environmental limitations or operating limitations with low excess steam in the process, which exist for catalysts in accordance with the state of the art. Such catalysts are used in the hydrogen or synthesis gas production process by the steam reforming of hydrocarbons, allow the use of low steam/carbon ratios in the process, exhibiting high activity and stability to thermal deactivation and lower environmental restrictions for production, storage, use and disposal, than the industrially used catalysts based on iron, chromium, and copper oxides.Type: ApplicationFiled: October 7, 2021Publication date: April 14, 2022Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRÁSInventor: Roberto Carlos Pontes BITTENCOURT
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Publication number: 20220055909Abstract: The present invention relates to a method of synthesis of zeolitic LTA adsorbents containing intercrystalline mesoporosity and controlled particle size, which can, for example, be used in natural gas dehydration processes, seeking to comply not only with the specifications on moisture content in the natural gas, but also improving the efficiency of the gas drying process in regard to the adsorption kinetics, not compromising the adsorption capacity, water selectivity, and the regeneration cycles of the adsorbent. Another possible application of these compounds is as the support for catalysts for oil refining processes. The method of obtaining the zeolitic adsorbent solids, the purpose of this invention, consists of including an aging step of the reaction mixture in conjunction with the addition of N,N-dimethyl-N-[3-(trimethoxysilane)propyl]octadecyl ammonium chloride (TPOAC) to the reaction mixture.Type: ApplicationFiled: August 6, 2021Publication date: February 24, 2022Applicants: Petróleo Brasileiro S.A. - Petrobrás, FUNDAÇÃO UNIVERSIDADE FEDERAL DE SÃO CARLOS - UFSCARInventors: Darley Carrijo De Melo, Wilson Mantovani Grava, Dilson Cardoso, Jailson De Arruda Araújo
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Publication number: 20220057361Abstract: The present invention discloses a portable system comprised of an electrochemical cell for batch injection analysis (BIA) coupled to a copper oxide electrode for the selective determination and quantification of monoethylene glycol (MEG) from different petrochemical samples with application in the environment laboratory and in field analyses, aiming at the quality control of these samples by portable methodology and in a short analysis time.Type: ApplicationFiled: August 19, 2021Publication date: February 24, 2022Applicants: PETRÓLEO BRASILEIRO S.A. - PETROBRAS, UNIVERSIDADE FEDERAL DE GOIÁS - UFGInventors: KARIOLANDA CRISTINA DE ANDRADE REZENDE, WENDELL KARLOS TOMAZELLI COLTRO, IRIS MEDEIROS JUNIOR
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Publication number: 20220026873Abstract: The present invention refers to an ECOSCEL supervisory system with application in the E&P area, particularly in the control rooms of offshore production platforms, or in onshore plants, aiming to allow a summary of the process in only two screens, in which all the most important variables used are concentrated. The flexibility of inserting important variables and notifications allows, at any time, a rapid update of the operational demands of the control room administrators. With the visual organization of the ECOSCEL supervisor, the operator of control room can immediately perceive a variable outside the range, in time to intervene with appropriate control actions to prevent (shutdown) of a piece of equipment, system or process.Type: ApplicationFiled: June 23, 2021Publication date: January 27, 2022Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRASInventor: Daniel Cabral ROSA
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Publication number: 20220023823Abstract: The present invention describes a plasma reactor for processing natural gas and/or light hydrocarbons, including biomethane and biogas, with a plasma torch that does not require the use of cathode shielding gas (shielding gas), as well as a process for reforming using a plasma reactor for the production of synthesis gas and carbonaceous materials from natural gas and/or light hydrocarbons.Type: ApplicationFiled: November 29, 2019Publication date: January 27, 2022Applicants: PETRÓLEO BRASILEIRO S.A. - PETROBRAS, UNIVERSIDADE FEDERAL DO ESPÍRITO SANTO - UFESInventors: Aurelio REIS DA COSTA LABANCA, Alfredo GONÇALVES CUNHA
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Publication number: 20220025734Abstract: The present invention refers to a mandrel assembly for chemical injection in use in an oil well production string where the water depth can reach 3,000 m, exerting extreme hydrostatic pressures on the mandrel. The mandrel assembly is capable of dosing the chemical fluid flow rate to avoid some types of unwanted situations in the production string, mainly related to fouling. It has the characteristic of not using injection valves having small diameters, causing the annular space between the mandrel body and the inner part to ensure greater space for the flow of chemical fluid, thus reducing the likelihood of a possible plugging. Such characteristics ensure lower maintenance interventions, thus generating lower costs and increasing well reliability.Type: ApplicationFiled: June 22, 2021Publication date: January 27, 2022Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRÁSInventors: Mario Germino Ferreira DA SILVA, Giselle Maria Lopes Leite DA SILVA
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Publication number: 20220009871Abstract: The present invention describes a selective glycerol oxidation process comprising a set of steps. In the first step, a glycerol-containing raw material and an oxidizing agent are fed into a reaction vessel containing an iron oxide-containing catalyst. Subsequently, the glycerol-containing raw material, the oxidizing agent, and said iron oxide-containing catalyst are brought into contact at a temperature in the range of 100 to 350° C., wherein the glycerol-oxidation reaction occurs.Type: ApplicationFiled: November 12, 2019Publication date: January 13, 2022Applicants: PETRÓLEO BRASILEIRO S.A. - PETROBRAS, UNIVERSIDADE FEDERAL DE MINAS GERAIS - UFMGInventors: Marcio DE FIGUEIREDO PORTILHO, Victor Augusto ARAUJO DE FREITAS, Luiz Carlos ALVES DE OLIVEIRA
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Publication number: 20210363881Abstract: The present invention relates to the monitoring of disconnected subsea oil wells. In this scenario, the present invention provides a system for monitoring disconnected wells comprising (i) means for acquiring and processing (12) monitoring data from the WCT (20) and/or from the well, the means for acquiring and processing (12) being connected to the sensors of the WCT (20) and/or of the well, (ii) means for verifying (12) the monitoring data from the WCT (20) and/or from the well and comparing them with predetermined values, and (iii) means for signaling (14, 16) designed to send at least one signal in the event an abnormality is detected through comparison of the data with the predetermined values. The present invention further provides a method associated with the above-mentioned system.Type: ApplicationFiled: July 17, 2019Publication date: November 25, 2021Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRASInventors: Marcos Vinicius DA SILVA NOBREGA, Marcio ALBUQUERQUE DE SOUZA, Hugo Francisco LISBOA SANTOS, Cedric HERNALSTEENS
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Publication number: 20210356080Abstract: The present invention relates to an auxiliary system for starting or restarting the flow of gelled fluid contained in a pipeline (12) wherein the system comprises: at least one relief tank (13) fluidly connected (11) to the pipeline (12), wherein at least one relief tank (13) is suitable for receiving fluid from the pipeline (12); and at least one pressurising element upstream of at least one tank, suitable for pressurising the fluid in the pipeline (12), Additionally, the invention also provides an auxiliary method for starting or restarting the flow of gelled fluid in a pipeline (12) comprising at least one tank fluidly connected (11) to the pipeline (12) and at least one pressurising element upstream of at least one tank, wherein the method comprises the step of, at the start of the process, the pressurising element increasing the pressure in the pipeline (12) and filling at least one tank at least partially with fluid coming from the pipeline (12).Type: ApplicationFiled: January 25, 2018Publication date: November 18, 2021Applicants: PETRÓLEO BRASILEIRO S.A. - PETROBRAS, UNIVERSIDADE TECNOLOGICA FEDERAL DO PARANAInventors: Guilherme DOS SANTOS VIEIRA LIMA, Cezar Otaviano RIBEIRO NEGRAO, Eduardo MARTINEZ BARREIRA, Nezia DE ROSSO, Paulo Henrique DE CARVALHO, Fernando MACHADO KROETZ
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Publication number: 20210025254Abstract: The present invention relates to an auxiliary device for lowering at least one tool into a well, the auxiliary device comprising a main body configured to at least partially envelope an upper portion of the tool, wherein the main body comprises: a bottom opening configured to allow passage of the tool; and a top opening configured to block passage of the tool and allow passage of the cable supporting the tool.Type: ApplicationFiled: August 14, 2018Publication date: January 28, 2021Applicant: PetrÓleo BrasilEiro S.A. -PetroBrasInventors: Jose Soares de MIRANDA JUNIOR, Orman Salvador TOSCANO, Paulo Cesar Cardoso FERREIRA, Humberto de OLIVEIRA REIS
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Publication number: 20200392823Abstract: A system for pressurization of an underwater oil reservoir by independent injection of water and gas comprise: at least first and second underwater injection wells, wherein at least one of the first and second underwater injection wells is linked to a production unit by means of an individual underwater line; and at least two jumpers: a first jumper hydraulically connecting a wet Christmas tree of the first underwater injection well to a wet Christmas tree of the second underwater injection well, and a second jumper hydraulically the wet Christmas tree of the second underwater injection well to the wet Christmas tree of the first underwater injection well.Type: ApplicationFiled: October 5, 2018Publication date: December 17, 2020Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRASInventors: Roberto RODRIGUES, Carlos ALBERTO BANDEIRA RIBEIRO CARDOSO
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Publication number: 20200391189Abstract: The present invention relates to a catalyst for selective hydrodesulphurization of cracked naphtha streams in the form of an extrudate, which comprises a support based on an inorganic oxide and an outer layer bound to the support, wherein the outer layer comprises desulphurization metals dispersed therein forming a crown, the desulphurization metals being cobalt and molybdenum. The present invention also relates to the preparation of said catalyst by the incipient wetness impregnation method and to the process for selective hydrodesulphurization of cracked naphtha employing same.Type: ApplicationFiled: October 4, 2018Publication date: December 17, 2020Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRASInventors: Sandra Shirley Ximeno CHIARO, Jose Luiz ZOTIN, Dayse Lovatte FONSECA, Anilza de ALMEIDA LYRA CORREA
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Publication number: 20200346140Abstract: The present invention provides a multiphase separator for separating a multiphase fluid produced by one or more oil wells, the multiphase separator comprising: a separating vessel, comprising an inlet chamber and an oil chamber for collecting oil at least partially separated by a barrier; an inlet for introducing the multiphase fluid into the separating vessel; wherein the oil chamber is positioned on the opposite side of the barrier to the inlet; a gas outlet configured to collect gas separated from the multiphase fluid; an oil outlet configured to collect oil, separated from the multiphase fluid, from the oil chamber; a water outlet configured to collect water separated from the multiphase fluid; and a gas and water mixture injector configured to inject a mixture of pressurized gas and water in a lower portion of the separating vessel.Type: ApplicationFiled: October 26, 2018Publication date: November 5, 2020Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRASInventors: Fabricio SOARES DA SILVA, André SAMPAIO MONTEIRO