Patents Assigned to Petroleo Brasileiro S.A. Petrobras
  • Publication number: 20200240253
    Abstract: A hydraulically driven underwater pumping system may include a pumping module connected to a subsea base. The subsea base may be connected to: a subsea producing well via a production line that carries the fluid produced by the subsea producing well; and a production unit via a riser and a service line. The hydraulically driven underwater pumping system may receive working fluid from the production unit via the service line. Additionally, a pump, located in the pumping module, may be driven hydraulically by the working fluid and pump the fluid produced by the subsea producing well to the production unit. The hydraulically driven underwater pumping system may mix the working fluid, after being used to drive the pump, with the fluid produced by the subsea producing well that is pumped to the production unit.
    Type: Application
    Filed: May 3, 2018
    Publication date: July 30, 2020
    Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Roberto Rodrigues, Carlos Alberto Bandeira Riberio Cardoso, Tatiane Silva Vieira
  • Publication number: 20200200643
    Abstract: A system configured to sense a leak in a stuffing box includes a sensing device that has a support supporting an elongated structure that is configured to pivot relative to the support. A container is fixed to a first end of the elongated structure and is suitable for receiving liquid from a leak. The sensing device includes at least one position sensor for detecting a position of the elongated structure. The system is configured such that when empty, the container remains in a raised position, and a second end of the elongated structure, opposite the first end to which the container is fixed, remains in a lowered position. When the system is filled with leaked liquid, the container moves to a lowered position compared to its empty raised position, and the second end of the elongated structure moves to a relatively raised position compared to its empty lowered position.
    Type: Application
    Filed: April 27, 2018
    Publication date: June 25, 2020
    Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRAS
    Inventor: Silvio Ferreira Gaglioti
  • Publication number: 20200165878
    Abstract: Pipelines with a control system and forced circulation of fluids through the annulus between an inner barrier and an outer cover of a pipe use a system configured to force circulation of fluids through the annulus. The pipe includes segments (T1, T2, T3, TN) joined together by means of connectors, wherein each segment of the pipe has an injector pipe (I1, I2, I3, IN) for injecting fluid into the annulus at a first end of the segment, and a return pipe (R1, R2, R3, RN) for removing fluid from the annulus at a second end of the segment.
    Type: Application
    Filed: May 30, 2018
    Publication date: May 28, 2020
    Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Marcos Carpigiani De Almeida, George Carneiro Campello, Jonatas Ribeiro, Rafael Guimarães De Mello Sobreira, Walter Carrara Loureiro Junior, Marcelo Torres Piza Paes
  • Publication number: 20200166158
    Abstract: A pipe is used for control and forced circulation of corrosion-inhibiting fluids in an annulus thereof, the annulus located between an inner pressure barrier and an outer cover of the pipe and containing a number of layers. The pipe includes two layers of tensile armor within the annulus; at least one injection pipe laid helicoidally on the longitudinal extension of the pipe; at least one return pipe laid helicoidally on the longitudinal extension of the pipe; and a ventilation layer within the annulus, the ventilation layer being configured to facilitate the flow of fluids longitudinally through the annulus of the pipe.
    Type: Application
    Filed: May 30, 2018
    Publication date: May 28, 2020
    Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Marcos Carpigiani De Almeida, George Carneiro Campello, Jonatas Ribeiro, Rafael Guimarães De Mello Sobreira, Walter Carrara Loureiro Junior, Marcelo Torres Piza Paes
  • Publication number: 20200096150
    Abstract: A flexible pipe connector for effecting control and forced circulation of corrosion-inhibiting fluids through an annulus between inner and outer sheaths of a flexible pipe having multiple connected segments includes an attachment mechanism for connecting to an end of a segment of flexible pipe and at least two distributing rings for distributing corrosion-inhibiting fluid. The rings are configured to be positioned in the annulus of the flexible pipe, wherein at least one distributing ring has fluidic access to the annulus of the flexible pipe. This distributing ring is configured to be connected fluidically to at least one distributing ring, in an adjacent connector, that does not have fluidic access to the annulus, A distributing ring that does not have fluidic access to the annulus of the flexible pipe is configured to be connected fluidically to at least one distributing ring, in an adjacent connector, that comprises fluidic access to the annulus.
    Type: Application
    Filed: May 30, 2018
    Publication date: March 26, 2020
    Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Marcos Carpigiani De Almeida, George Carneiro Campello, Jonatas Ribeiro, Rafael Guimarães De Mello Sobreira, Walter Carrara Loureiro Junior, Marcelo Torres Piza Paes
  • Publication number: 20190358852
    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.
    Type: Application
    Filed: April 29, 2019
    Publication date: November 28, 2019
    Applicants: PETROLEO BRASILEIRO S.A. - PETROBRAS, STATOIL BRASIL OLEO E GAS LTDA., Universidade Federal de Minas Gerais - UFMG
    Inventors: 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
  • Publication number: 20190225896
    Abstract: The present invention describes a method for refining highly polyaromatic and nitrogenated charges, such as LCO streams, comprising hydrotreating (HDT) as the first reaction stage, followed by the intermediate separation of gases generated in the HDT section, then by a second reaction stage consisting in moderate hydroconversion/hydrocracking and in a rectifying and/or fractionating section, thus allowing more flexible production of fuels. In the rectification mode, the claimed method yields a diesel oil fraction with higher cetane content, reduced density and volumetric yield increase of at least 111% relative to the process charge, thus minimising yield losses through naphtha overcracking and contributing to the optimisation of the required hydrogen consumption. In the fractionating mode, different cuts and their compositions can be produced, such as naphtha, kerosene and diesel.
    Type: Application
    Filed: July 19, 2017
    Publication date: July 25, 2019
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Carlos Alberto DE ARAUJO MONTEIRO, Donizeti Aurelio SILVA BELATO, Jorge Roberto DUNCAN LIMA, Denise BARCELLOS DA ROCHA MONTEIRO, Jose Luiz ZOTIN
  • Patent number: 10351757
    Abstract: The present invention relates to a method for removing organic deposits from oil and gas wells and other subsystem systems comprising cumene and biodiesel. The invention also relates to a method for removing organic deposits, including the steps for pumping said remover composition through a riser and/or through peripheral pipes of the umbilical and/or production pipe, leaving the composition in contact with the deposit for a sufficient time for removal of at least 50% of such.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: July 16, 2019
    Assignee: PETRÓLEO BRASILEIRO S.A.-PETROBRAS
    Inventors: Wendel Rodrigues Cezario, Rodrigo Pio Borges Menezes, Pedro Aledi Portugal, Rosana Serfaty De Campos, Guilherme dos Santos Vieira Lima, Plinio Martins Dias Da Silva
  • Publication number: 20190195184
    Abstract: The invention relates to the technology of gasoline direct injection (GDI) in automotive engines. In this context, the invention provides a method for maximizing the formation of deposits in injector nozzles of GDI engines, said method including at least one test cycle, each test cycle including at least one testing step in which a predetermined condition of speed and load of the GDI engine is maintained for a specified period of time, wherein, in said cycle, in at least one testing step, the engine speed is maintained between 1300 and 3700 rpm, the engine load is maintained between 10 and 80% and the specified period of time is from 10 to 200 minutes. Thus, the method of the invention is able to reproduce severe conditions of deposition of material in a few days, so that, in a short period of time, the test fuel can be assessed for tendency to form deposits.
    Type: Application
    Filed: June 28, 2017
    Publication date: June 27, 2019
    Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Paulo Cesar PEREIRA DE OLIVEIRA, Guilherme BASTOS MACHADO, Tadeu CAVALCANTE CORDEIRO DE MELO, Marcelo LAURENTYS AIROLDI, Renata NOHRA CHAAR DE SOUZA, Flávio GOMES DEAS, Franck YVES TURKOVICS, Pedro Artur LIRA DA SILVA
  • Patent number: 10086358
    Abstract: The present invention lies in the fields of chemistry and nanotechnology and describes a nanocomposite to be used in the recovery of several compounds from inorganic or organic medium. Specifically, the invention presents a nanocomposite consisting of magnetic nanoparticles composed of Fe3O4 associated to an activated charcoal adsorbent substrate, a process to obtain and methods of use of the nanocomposite. The present invention enables the processing, concentration and recovery of large volumes of contaminated water, regenerating magnetic adsorbent material for reuse, in a cyclic and sustainable manner, transforming dispersed/diluted pollutants in pre-concentrates that can be easily processed, helping to conserve natural resources.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: October 2, 2018
    Assignees: PETROLEO BRASILEIRO S.A.-PETROBRAS, Universidade de Sao Paulo-USP
    Inventors: Koiti Araki, Ulisses Condomitti Epamino, Alceu Totti Silveira Junior, Sergio Hiroshi Toma, Henrique Eisi Toma
  • Patent number: 9983187
    Abstract: The present invention is a system for the extraction and quantification of tetraprotic naphthenic acids present in oils, precursors of the formation of calcium naphthenates, which are potential formers of deposits, causing of damage to pieces of equipment used in the oil production industry.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: May 29, 2018
    Assignee: PETROLEO BRASILEIRO S.A.-PETROBRAS
    Inventors: Flávio Cortiñas Albuquerque, Rafael dos Santos Nascimento de Brito, Marcele Abreu Lopes
  • Publication number: 20180106406
    Abstract: The present invention provides a system for auto-alignment and tensioning of flexible pipes (24) in a stationary production unit, said system comprising (i) at least one tensioner (10) comprising an upper cone (10s) and a lower cone (10i), the upper cone (10s) and the lower cone (10i) being fixed together and forming a symmetrical double cone structure provided with an internally hollow cylindrical opening suitable for passage of a flexible pipe (24), (ii) at least one supporting fork (12) with pivoted connection to the at least one tensioner (10) and (iii) at least one coupling device (16) which, at a first end, is connected detachably to the at least one supporting fork (12) and, at a second end, is connected to the stationary production unit. A method for installing flexible pipes by means of said system is also provided.
    Type: Application
    Filed: October 13, 2017
    Publication date: April 19, 2018
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Ricardo Wagner CAPLLONCH, Carlos Alberto Duarte de LEMOS, Anderson Barata CUSTODIO, Eduardo VARDARO
  • Publication number: 20180094201
    Abstract: The present invention describes a process for purifying biodiesel without using a filter aid, in which purification of the biodiesel takes place by a sequence of washing operations after the reaction section, with stirring that is sufficiently vigorous to assist in the transformation of the molecules of esterified steryl glycosides, in order to convert them to a chemical form that can be removed by the process.
    Type: Application
    Filed: October 3, 2017
    Publication date: April 5, 2018
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Jose Antonio Vidal VIEIRA, Vitor Loureiro XIMENES, Carolina Ludwig QUINTANI, Marcio DE FIGUEIREDO PORTILHO, Roberto Ricardo RANGEL
  • Publication number: 20180093261
    Abstract: The present invention relates to catalysts of iron and chromium with a platinum promoter for use in water-gas shift reactions, both at low temperatures (LTS) and at high temperatures (HTS). Their characteristics of higher activity due to the addition of Pt compared to the conventional catalysts make them superior to the commercial catalysts in the same operating conditions. Because precursors of the active phase (Fe3O4) are obtained in greater quantity per unit area, it was possible to prepare catalysts that are more promising with a smaller surface area.
    Type: Application
    Filed: October 3, 2017
    Publication date: April 5, 2018
    Applicants: PETRÓLEO BRASILEIRO S.A. - PETROBRAS, UNIVERSIDADE FEDERAL FLUMINENSE - UFF
    Inventors: Luis Eduardo Terra DE ALMEIDA, Ludmila DE PAULA CABRAL SILVA, Ana Carla da Silveira Lomba Sant'ana COUTINHO, Fabio Barboza PASSOS, Vivian Passos DE SOUZA, Maira Andrade RODRIGUES, Amanda DE ALMEIDA DUMANI DOS SANTOS
  • Publication number: 20180086967
    Abstract: The present invention relates to a method for removing organic deposits from oil and gas wells and other subsystem systems comprising cumene and biodiesel. The invention also relates to a method for removing organic deposits, including the steps for pumping said remover composition through a riser and/or through peripheral pipes of the umbilical and/or production pipe, leaving the composition in contact with the deposit for a sufficient time for removal of at least 50% of such.
    Type: Application
    Filed: June 12, 2015
    Publication date: March 29, 2018
    Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Wendel Rodrigues CEZARIO, Rodrigo Pio Borges MENEZES, Pedro Aledi PORTUGAL, Rosana Serfaty DE CAMPOS, Guilherme dos Santos VIEIRA LIMA, Plinio Martins Dias DA SILVA
  • Publication number: 20180085740
    Abstract: The present invention relates to a process for preparing a nickel-based catalyst promoted with aluminium compounds with increased resistance to thermal deactivation and to the nickel-based catalyst thus obtained. In addition, the present invention relates to the use of said catalyst in a steam reforming process starting from hydrocarbons for producing hydrogen or synthesis gas.
    Type: Application
    Filed: September 28, 2017
    Publication date: March 29, 2018
    Applicant: Petroleo Brasileiro S.A. - Petrobras
    Inventor: Roberto Carlos PONTES BITTENCOURT
  • Publication number: 20180087328
    Abstract: The present invention relates to systems for securing connectors of risers in petroleum production units. In this scenario, the present invention provides an autonomous system for securing a riser support, said system comprising (i) a riser support (32) connected at its bottom end to a submerged riser (34) and at its upper end to a tensioning element (30), (ii) a supporting ledge (20) comprising a through-hole (22) through which the tensioning element (30) and at least part of the riser support (32) pass, (iii) a securing device (40) located on the supporting ledge (20), said securing device (40) sliding relative to the supporting ledge (20) and driven by an actuator (48), wherein the securing device (40) slides between an unlocked position and a locked position on the through-hole (22), wherein, in the locked position, the securing device (40) can engage with locking in a connector (38) of the riser support (32) after the connector (38) has passed through the through-hole (22) of the supporting ledge (20).
    Type: Application
    Filed: September 21, 2017
    Publication date: March 29, 2018
    Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Sergio Batista DE BARROS, Marcelo Costa VITIELLO
  • Publication number: 20180086992
    Abstract: The present invention describes a process for the simultaneous removal of arsenic and sulphur compounds from hydrocarbon streams of fossil origin, wherein hydrocarbon streams of fossil origin resulting from the retorting process of schist are purified by direct contact with hydrated iron oxide, such as goethite (?-FeOOH) in its raw natural form (limonite ore particles).
    Type: Application
    Filed: September 27, 2017
    Publication date: March 29, 2018
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Wladmir FERRAZ DE SOUZA, Marcus Vinicius Eiffle DUARTE, Lilian ERNST, Carmen Lucia TAVARES DA SILVA
  • Patent number: 9879509
    Abstract: The present invention relates to the design of a nozzle valve (GL) for gas lifting that can be used in place of conventional orifice valves (VO). The gas lift nozzle valve (GL) according to the present invention has a body (1) with admission orifices (2), and, immediately below these, a slight recess (3) in the internal diameter of the body where a convergent nozzle (4) is fitted to regulate the gas flow passing through the inside of the nozzle valve (GL) towards the outlet (5) of the latter.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: January 30, 2018
    Assignee: PETROLEO BRASILEIRO S.A. -PETROBRAS
    Inventor: Alcino Resende De Almeida
  • Publication number: 20170240824
    Abstract: The present invention relates to a process for obtaining fuel from biomass which comprises the introduction of the catalyst (3) in the base of an cracking section (4), wherein said catalyst (3) at high temperature comes in contact with a gas stream of light hydrocarbons rich in hydrogen (1), wherein the catalyst (3) and hydrocarbon (1) then come in contact with a lignocellulosic liquid stream (2) in the same cracking section (4), creating the reaction mixture (5) that, soon after, comes into contact with the main stream containing the traditional fossil load of a FCC (6) in a second cracking section (7).
    Type: Application
    Filed: February 24, 2017
    Publication date: August 24, 2017
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Andrea de Rezende PINHO, Fabio Leal MENDES