Abstract: 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:
Application
Filed:
January 25, 2018
Publication date:
November 18, 2021
Applicants:
PETRÓLEO BRASILEIRO S.A. - PETROBRAS, UNIVERSIDADE TECNOLOGICA FEDERAL DO PARANA
Inventors:
Guilherme DOS SANTOS VIEIRA LIMA, Cezar Otaviano RIBEIRO NEGRAO, Eduardo MARTINEZ BARREIRA, Nezia DE ROSSO, Paulo Henrique DE CARVALHO, Fernando MACHADO KROETZ
Abstract: 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:
Application
Filed:
August 14, 2018
Publication date:
January 28, 2021
Applicant:
PetrÓleo BrasilEiro S.A. -PetroBras
Inventors:
Jose Soares de MIRANDA JUNIOR, Orman Salvador TOSCANO, Paulo Cesar Cardoso FERREIRA, Humberto de OLIVEIRA REIS
Abstract: 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:
Application
Filed:
October 5, 2018
Publication date:
December 17, 2020
Applicant:
PETRÓLEO BRASILEIRO S.A. - PETROBRAS
Inventors:
Roberto RODRIGUES, Carlos ALBERTO BANDEIRA RIBEIRO CARDOSO
Abstract: 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:
Application
Filed:
October 4, 2018
Publication date:
December 17, 2020
Applicant:
PETRÓLEO BRASILEIRO S.A. - PETROBRAS
Inventors:
Sandra Shirley Ximeno CHIARO, Jose Luiz ZOTIN, Dayse Lovatte FONSECA, Anilza de ALMEIDA LYRA CORREA
Abstract: 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:
Application
Filed:
October 26, 2018
Publication date:
November 5, 2020
Applicant:
PETRÓLEO BRASILEIRO S.A. - PETROBRAS
Inventors:
Fabricio SOARES DA SILVA, André SAMPAIO MONTEIRO
Abstract: This invention is for a centrifugal separator comprised of a group formed by: a central feed chamber (10) fed by a feed pipe (20); a separation chamber (30) including a number of frustoconical disks (3); a first recovery chamber (11) in communication with a first liquid phase recovery pipe (21) and a gaseous phase recovery pipe (23); and a second recovery chamber (12) communicating with a second liquid phase recovery pipe (22), where the group is encompassed by a rotating envelope (1), where the central feed chamber (10) is in liquid fluid communication with the separation chamber (30), and in gaseous fluid communication with the first recovery chamber (11), where the separation chamber (30) is in fluid communication with the first and second recovery chambers where the centrifugal separator is encompassed by pressurizable stationary casing (4a, 4b).
Type:
Grant
Filed:
November 9, 2016
Date of Patent:
September 1, 2020
Assignees:
PETROLEO BRASILEIRO S.A.-PETROBRAS, DELP Engenharia Mecânica S/A
Inventors:
Marcos Aurélio De Souza, Leonardo Dos Santos Pereira, Thiago Esteves Martins
Abstract: The invention relates to a process that comprises dehydration of by-products from ethanol production from sugar cane, by fluidized bed catalytic cracking, for obtaining a renewable hydrocarbon stream, preferably consisting primarily of olefins with 5 carbon atoms, for use in gasolines, and to the and to the hydrocarbon stream and gasoline formulations thus obtained.
Type:
Application
Filed:
November 15, 2017
Publication date:
August 27, 2020
Applicant:
PETROLEO BRASILEIRO S.A. - PETROBRAS
Inventors:
Anderson Rouge DOS SANTOS, William Richard GILBERT, Edimilson Jesus DE OLIVEIRA
Abstract: The present invention relates to an enzymatic process for depolymerization of post-consumer poly(ethylene terephthalate) by a glycolysis reaction. This invention also relates to a process for recycling post-consumer poly(ethylene terephthalate) and to the recycled poly(ethylene terephthalate) obtained by said process.
Type:
Application
Filed:
September 14, 2017
Publication date:
August 13, 2020
Applicant:
PETROLEO BRASILEIRO S.A. - PETROBRAS
Inventors:
Aline Machado DE CASTRO, Adriano Carniel DE OLIVEIRA, Erika de Araújo VALONI, Danielle Altomari TEIXEIRA, Cesar Rezende DA MOTTA
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
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.
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
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
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
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
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
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
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
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
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
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