公开(公告)号：US12055005B2

公开(公告)日：2024-08-06

申请号：US17295223

申请日：2019-11-21

Applicant: PETROLEO BRASILEIRO S.A.—PETROBRAS

Inventor： Henri Fiorenza De Lima ,  Roberto Loschiavo ,  Luis Fernando Alves Ferreira ,  Gustavo Geraldo Pappen

IPC: E21B33/038 ,  E21B43/013 ,  F16L1/26 ,  F16L39/02

CPC classification number: E21B33/038 ,  E21B43/013 ,  F16L1/26 ,  F16L39/02

Abstract: The present invention relates to junction boxes for umbilicals. In this context, the present invention provides a junction box for connecting two umbilical sections, comprising a plurality of main pipes (2), suitable for individually connecting a plurality of hydraulic hoses (I) of a first umbilical section to a plurality of hydraulic hoses (I) of a second umbilical section, in which the junction box also comprises an auxiliary pipe network (3) hydraulically connecting all of the main pipes (2).

公开(公告)号：US20240218235A1

公开(公告)日：2024-07-04

申请号：US18397499

申请日：2023-12-27

Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS

Inventor： Mario Germino Ferreira Da Silva ,  Valtair Marco Cristante ,  Femando Antonio Moreira Da Silva

IPC: C09K8/528 ,  E21B37/06

CPC classification number: C09K8/528 ,  E21B37/06

Abstract: The present invention proposes the use of microcapsules containing acids in its interior to adjust the pH of the scale inhibitor in oil reservoirs. The microcapsules are comprised of an inner moiety with organic or inorganic acid and an outer moiety comprised of an oil-soluble polymeric material at the reservoir temperature. The microcapsules open due to the effect of the reservoir temperature, releasing the acid into the corrosion inhibitor, hence changing its pH. The present invention further proposes a method of treatment using scale inhibitors using microcapsules containing acids in its interior to adjust the pH of the scale inhibitor in oil reservoirs, wherein the method comprises the steps of (a) preparing the scale inhibitor product; (b) pumping the inhibitor solution prepared into the standpipe manifold; (c) adding the acidic microcapsules to the scale inhibitor; and (d) injecting the inhibitor solution mixture containing the acidic microcapsules into the production well column.

公开(公告)号：US20240207822A1

公开(公告)日：2024-06-27

申请号：US18545922

申请日：2023-12-19

Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS ,  UNIVERSIDADE FEDERAL DO CEARA

Inventor： Solange Assunção QUINTELLA ,  Jose Andre Cavalcanti Da Silva ,  Francisco Murilo Tavares De Luna ,  Charles Lima Bessa Assuncao ,  Maria Thiciane Almeida Costa ,  Celio Loreiro Cavalcante, JR. ,  Maria Imaculada G. Silveira Teixeira

IPC: B01J23/20 ,  B01J21/08 ,  B01J35/30 ,  B01J35/45 ,  B01J35/61 ,  B01J35/63 ,  B01J35/64 ,  B01J37/00 ,  B01J37/02 ,  B01J37/03 ,  B01J37/04 ,  B01J37/08 ,  C07C67/26 ,  C10M105/34 ,  C10N20/00 ,  C10N20/02

CPC classification number: B01J23/20 ,  B01J21/08 ,  B01J35/394 ,  B01J35/45 ,  B01J35/617 ,  B01J35/635 ,  B01J35/638 ,  B01J35/647 ,  B01J37/009 ,  B01J37/0236 ,  B01J37/038 ,  B01J37/04 ,  B01J37/088 ,  C07C67/26 ,  C10M105/34 ,  C10M2207/2815 ,  C10N2020/02 ,  C10N2020/081

Abstract: The present invention relates to a multifunctional hybrid catalyst with niobium and tin supported on hexagonal mesoporous silicas (HMSNb—Sn), synthesis process thereof through isomorphic substitutions and the process for obtaining biodegradable lubricating base oils using said catalyst.

公开(公告)号：US20240204531A1

公开(公告)日：2024-06-20

申请号：US18543496

申请日：2023-12-18

Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS ,  UNIVERSIDADE FEDERAL DE MINAS GERAIS

Inventor： Danilo Iglesias BRANDÃO ,  Geovane Luciano Dos Reis

IPC: H02J3/38 ,  H02J3/18 ,  H02J3/32

CPC classification number: H02J3/381 ,  H02J3/18 ,  H02J3/32 ,  H02J3/388 ,  H02J2203/10 ,  H02J2300/24

Abstract: This technology refers to a control process for single-controllable low-voltage microgrids (Mgs) (SCM) having centralized communication. The process is based on the “Power-Based Control” (PBC) technique by adapting it to the context of SCMs through a modified PBC process (MPBC). The technology includes a process that provides the following technical effects: (1) sharing of active power and reactive power proportionately to the capacity of distributed energy resources (DERs or DGs) in the MG, for example, rendering the use of batteries based on different technologies (lead-acid, ion-lithium, etc.) compatible; (2) compensation for the current unbalance at the point of common coupling (PAC); (3) allows exploration of battery banks by balancing the charging status of storage elements; (4) allows implementation of the control process without knowing the electrical grid's parameters and topology; (5) is able to deal with the arbitrary connection of inverters into the MG, in addition to other advantages. The technology is applied in the technical field of equipment and infrastructure for the development of MGs.

公开(公告)号：US20240151124A1

公开(公告)日：2024-05-09

申请号：US18504935

申请日：2023-11-08

Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS

Inventor： FERNANDO ANTONIO MOREIRA DA SILVA ,  Mario Germino Ferreira Da Silva

IPC: E21B43/16 ,  C09K8/584 ,  E21B43/017

CPC classification number: E21B43/166 ,  C09K8/584 ,  E21B43/017

Abstract: The present invention relates to a method for storing chemical products or their solutions in reservoir rock. In said method, the cargo boat containing the chemical product to be stored in the reservoir is connected to the production platform through an appropriate connection and connecting to the well header. The product is pumped through the chemical product capture line using a triplex chemical injection pump aligned to the head of the production or injection well. The product is pumped through the surface lines, riser and subsea line and, passing through the WCT, it is injected into the reservoir through the production or injection string.

公开(公告)号：US11753361B2

公开(公告)日：2023-09-12

申请号：US17546373

申请日：2021-12-09

Applicant: PETROLEO BRASiLEiRO S.A.—PETROBRAS ,  UNIVERSIDADE FEDERAL DO ESPIRITO SANTO—UFES

Inventor： Valdemar Lacerda Junior ,  Eliane Valeria De Barros ,  Alvaro Cunha Neto ,  Wanderson Romao ,  Cristina Maria Dos Santos Sad ,  Paulo Roberto Filgueiras ,  Eustaquio Vinicius Ribeiro De Castro ,  Luiz Silvino Chinelatto Junior ,  Juliana Navarro Bertelli ,  Rogerio Mesquita De Carvalho

IPC: C07C51/02 ,  C07C51/48 ,  B01D15/42 ,  B01D15/36 ,  C07C51/47

CPC classification number: C07C51/02 ,  B01D15/361 ,  B01D15/426 ,  C07C51/47 ,  C07C51/48

Abstract: The present invention relates to the field of laboratory-scale sample preparation, which describes a methodology for the specific isolation of tetraprotic naphthenic acids, called ARN acids, from residual naphthenate deposits from petroleum production.
The method consists of cleaning the naphthenate deposit, converting the naphthenate salts to naphthenic acids and isolating the ARN acids from the other organic acids, using a silica-based sorbent material with aminopropyl functional groups, previously selected for an efficient elution of different functional groups and polarities.

公开(公告)号：US11590524B2

公开(公告)日：2023-02-28

申请号：US17418566

申请日：2019-12-26

Applicant: PETROLEO BRASILEIRO S.A.—PETROBRAS ,  SERVICO NACIONAL DE APRENDIZAGEM INDUSTRIAL—DEPARTAMENTO REGIONAL DE SANTA CATARINA

Inventor： Andre Koebsch ,  Andre Marcon Zanatta ,  Ariel Paulo Rezende ,  Ismael Jose Secco ,  Walter Kapp

IPC: B05B13/04 ,  B05B15/60 ,  B25J5/02 ,  B25J11/00

Abstract: The present invention refers to an automated painting system on oil ships, being executed by a mobile platform and an oscillating arm. The assembly only works due to the control of cables, winders and wheels. This approach is aimed at painting large vertical walls. The painting deck suspension uses four cables, each connected to a pivot on the mobile platform, and two fixed pivots plus four winders. The winders contain a servo motor in a synchronous serial network. The cables are made of reduced-weight polyethylene. Each cable is connected exclusively to one winder. Suspension is achieved with the aid of two adapted cranes and initialization through the addition of a giraffe-type crane.

公开(公告)号：US20220126266A1

公开(公告)日：2022-04-28

申请号：US17506296

申请日：2021-10-20

Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS ,  UNIVERSIDADE FEDERAL DO RIO DE JANEIRO - UFRJ

Inventor： Vera Maria MARTINS SALIM ,  Jailton FERREIRA DO NASCIMENTO ,  Neuman SOLANGE DE RESENDE ,  Carla Luciane MANSKE CAMARGO ,  Amanda Gerhardt DE OLIVEIRA FERREIRA

IPC: B01J20/04 ,  B01J20/32 ,  B01J20/30 ,  C10L3/10 ,  B01D53/02

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.

公开(公告)号：US20210362203A1

公开(公告)日：2021-11-25

申请号：US17054620

申请日：2019-05-15

Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS ,  UNIVERSIDADE FEDERAL DO RIO GRANDE DO SUL - UFRGS

Inventor： Thomas Gabriel ROSAURO CLARKE ,  Ricardo REPPOLD MARINHO ,  Rafael Eugenio DOS SANTOS ,  Mariane CHLUDZINSKI ,  Marcelo TORRES PIZA PAES ,  Gustavo CORDENONSI DA FONSECA ,  Giovani DALPIAZ

IPC: B08B9/051 ,  B23D79/02

Abstract: The present invention provides a device for removing internal blockage materials (10) from a fluid-conveying line (3), said device comprising a cutting tool (9) activated by a rotary actuator (8), in which: the cutting tool (9) is positioned at the front of the device; and the cutting tool (9) comprises a diameter that is smaller than the internal diameter of the fluid-conveying line (3).

公开(公告)号：US20210356416A1

公开(公告)日：2021-11-18

申请号：US17319470

申请日：2021-05-13

Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS

Inventor： FLAVIO CORTINAS ALBUQUERQUE ,  CLAUDIO ROBERTO RIBEIRO DA SILVA ,  NATHALIE SANGHIKIAN ,  MAURICIO SOUZA DE ALENCAR

IPC: G01N25/48 ,  B01L3/08 ,  B01L9/04 ,  B01L3/00 ,  B01L7/00 ,  G01N27/416

Abstract: The present invention is in relation to a method and its apparatus, by means of which HCl generation formed from hydrolysis reactions or thermal decomposition of chloride salts is continuously monitored. Its application is in oil refining or in any other area where chloride salts are heated to temperatures high enough to cause hydrolysis reactions or thermal decomposition. The invention allows for a much more sophisticated and precise record of the thermal events that occur as a function of temperature. It also allows the behavior of chloride salts subjected to these conditions to be evaluated, both in model systems and in industrial saline solutions, with respect to the respective content, composition, or presence of components in the oil phase, such as carboxylic (naphthenic acids) or nitrogenous (ammonia or amines) acids.