公开(公告)号：US09926761B2

公开(公告)日：2018-03-27

申请号：US14648594

申请日：2014-09-10

Applicant: PETROLEO BRASILEIRO S.A.—PETROBRAS

Inventor： Mario Cesar Mello Massa De Campos ,  Alex Furtado Teixeira ,  Oscar Felippe Von Meien ,  Alberto Sant'Anna Stender ,  Saul Simoes Neto

IPC: E21B33/035 ,  E21B34/04 ,  E21B47/06 ,  G05B11/36 ,  E21B43/12

CPC classification number: E21B33/0355 ,  E21B34/04 ,  E21B43/12 ,  E21B47/06 ,  G05B11/36

Abstract: Slugging of fluids produced in petroleum wells creates major disturbances for production rigs, and leads to major variation in process pressures and levels. In many cases, these disturbances cause unscheduled production stops, and in others may damage equipment such as heat exchangers. Thus slugging may have a major impact on the reliability of the operation, as it may affect product availability and quality (BSW, TOG and Moisture). Therefore, there is a complex control problem to use measurements to dynamically act on the production choke valves to set a new type of flow, without major slugging. The purpose of this invention is to provide an Advanced Automated Control System for minimizing slugging that can quickly act to avoid this type of flow as well as protect the process equipment. This system is comprised of sensors, valves and numerous PID or ONFC type controllers using aggregate computer algorithms to monitor a set of operating variables that enable diagnosing and controlling production well slugging. This advanced control system is efficient and eliminates or minimizes slugging during production well operation.

公开(公告)号：US09365785B2

公开(公告)日：2016-06-14

申请号：US14115386

申请日：2013-05-29

Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS

Inventor： Roberto Carlos Pontes Bittencourt ,  Cristina Pontes Bittencourt Quitete ,  Mariana de Mattos Vieira Mello Souza

IPC: C10K1/34 ,  C10K3/02 ,  C01B3/58 ,  B01J35/00 ,  B01J23/78

CPC classification number: C10K1/34 ,  B01J23/02 ,  B01J23/78 ,  B01J35/0006 ,  B01J35/002 ,  B01J35/1009 ,  B01J35/1014 ,  B01J2523/00 ,  C01B3/58 ,  C01B2203/0233 ,  C01B2203/0435 ,  C01B2203/048 ,  C01B2203/1041 ,  C01B2203/1047 ,  C01B2203/1252 ,  C01B2203/141 ,  C01B2203/146 ,  C10J2300/0916 ,  C10K3/023 ,  Y02P20/145 ,  Y02P20/52 ,  B01J2523/23 ,  B01J2523/25 ,  B01J2523/31 ,  B01J2523/47 ,  B01J2523/847

Abstract: The invention described herein proposes steam reforming processes in two stages, the first stage being passing a synthesis gas stream through a first catalyst bed comprising an alkali metal and/or iron titanate based catalyst, and a second stage comprising at least a second catalyst bed containing a refractory supported metal catalyst, preferably having NiO as the metal phase supported with barium hexa-aluminate.

Abstract translation: 本文所述的本发明提出了两个阶段的蒸汽重整过程，第一阶段是使合成气流通过包含碱金属和/或铁酸钛基催化剂的第一催化剂床，第二阶段包括至少第二催化剂床， 耐火载体金属催化剂，优选具有由六铝酸钡负载的金属相的NiO。

公开(公告)号：US20160153956A1

公开(公告)日：2016-06-02

申请号：US14861364

申请日：2015-09-22

Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS

Inventor： Flávio Cortiñas ALBUQUERQUE ,  Rafael dos Santos NASCIMENTO de BRITO ,  Marcele Abreu LOPES

IPC: G01N33/28

CPC classification number: G01N33/2835 ,  C10G25/00 ,  C10G2300/1037 ,  C10G2300/203 ,  C10G2300/80

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.

Abstract translation: 本发明是用于提取和定量存在于油中的四环烷酸的系统，形成环烷酸钙的前体，其是沉积物的潜在成型剂，导致对生产工业中使用的设备的损坏。

公开(公告)号：US20150240173A1

公开(公告)日：2015-08-27

申请号：US14379369

申请日：2012-11-28

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

Inventor： Donato Alexandre Gomes Aranda ,  Yordanka Reyes Cruz ,  Gisel Chenard Dias ,  Leonardo Brantes Bacellar Mendes ,  Rafael Richard Joao

IPC: C10L1/02 ,  C07C67/08 ,  C07C51/09

CPC classification number: C10L1/026 ,  C07C51/09 ,  C07C67/08 ,  C10L2200/0476 ,  C10L2290/06 ,  C10L2290/08 ,  C10L2290/10 ,  C10L2290/543 ,  C11C1/04 ,  C11C3/003 ,  Y02E50/13 ,  Y02P20/127 ,  C07C69/52 ,  C07C53/00

Abstract: The invention relates to the preparation of carboxylic acid esters compounds, biodiesel (B) from microalgae, for use as a biofuel for compression type ignition. The objective is achieved through a hydroesterification process of a microalgae biomass (MU) comprising a hydrolysis stage and the esterification stage by means of heterogeneous catalysis. The wet microalgae biomass (MU) is the result of a process of cultivation concentration and is hydrolyzed directly in a hydrolysis column (20). Fatty acids (C), water (A) and raw glycerin (G) are obtained following the hydrolysis. The fatty acids (C) are esterified by reactive distillation in the presence of an impregnated heterogeneous catalyst (I).

Abstract translation: 本发明涉及羧酸酯化合物，来自微藻的生物柴油（B）的制备，用作压缩式点火的生物燃料。 目的是通过包含水解阶段和通过非均相催化的酯化阶段的微藻生物质（MU）的加氢酯化过程来实现。 湿微藻生物量（MU）是培养浓度过程的结果，并在水解塔（20）中直接水解。 在水解后获得脂肪酸（C），水（A）和生甘油（G）。 在浸渍的非均相催化剂（I）的存在下，通过反应蒸馏将脂肪酸（C）酯化。

公开(公告)号：US20130245252A1

公开(公告)日：2013-09-19

申请号：US13783516

申请日：2013-03-04

Applicant: BIOECON INTERNATIONAL HOLDING N.V. ,  PETROLEO BRASILEIRO S.A. - PETROBRAS

Inventor： Michiel MAKKEE ,  Jacob Adriaan MOULIJN ,  Jianrong LI ,  Paul O'CONNOR ,  Jacobus Cornelis RASSER ,  Armand Eduard ROSHEUVEL ,  Rafael MENEGASSI DE ALMEIDA

IPC: C07C29/132

CPC classification number: C07C29/132 ,  C08B15/02 ,  C08B16/00 ,  C07C31/26

Abstract: A process is disclosed for conversion of cellulose in an Ionic Liquid medium. The process is characterized in that a cellulose-containing feedstock and an Ionic Liquid are mixed at a temperature below 80 ° C. The mixture is heated to a conversion temperature in the range of 80 ° C. to 220 ° C. under a hydrogen atmosphere. The presence of hydrogen during the heating step significantly reduces the formation of degradation products.

Abstract translation: 公开了用于在离子液体介质中转化纤维素的方法。 该方法的特征在于，将含纤维素的原料和离子液体在低于80℃的温度下混合。将混合物在氢气氛下加热至80℃至220℃的转化温度 。 在加热步骤期间氢的存在显着降低了降解产物的形成。

公开(公告)号：US20040124124A1

公开(公告)日：2004-07-01

申请号：US10330967

申请日：2002-12-30

Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS

Inventor： Andrea de Rezende Pinho ,  Jose Geraldo Furtado Ramos ,  Wilson Kenzo Huziwara ,  Claudio Fonseca Machado dos Santos ,  Mauro Silva ,  Aurelio Medina Dubois ,  Nelson Patricio Junior ,  Jorivaldo Medeiros ,  Paulo Sergio Freire ,  Walcondiney Pereira Nunes ,  Paulo Sergio Moreira Assumpcao

IPC: C10G011/00 ,  B01J008/18

CPC classification number: B01J8/0055 ,  B01J8/003 ,  B01J8/1818 ,  B01J8/1881 ,  C10G11/18

Abstract: An apparatus for downflow fluid catalytic cracking is described, which comprises a regenerated catalyst riser carrying regenerated catalyst and a carrying fluid, those being directed through a crossover section to a distributor that will centrifuge gas and separate catalyst from carrying fluid, the catalyst being directed to a downflow reactor through a distributing basket provided with perforations. The upper part of the reactor is provided with feed injectors, which atomize the feed so that feed vaporization and feed and catalyst admixture is optimized. After the cracking reaction in downflow reactor, reaction products are separated and spent catalyst is directed to stripping and regeneration sections. The FCC process carried out in the apparatus is also described.

Abstract translation: 描述了一种用于下流流化床催化裂化的装置，其包括承载再生催化剂和载运流体的再生催化剂提升器，其通过交叉部分引导至将离心分离器并将催化剂与载运流体分离的分配器，催化剂被引导至 通过设有穿孔的分配篮的下流反应器。 反应器的上部设置有进料喷射器，其使进料雾化，使得进料蒸发和进料和催化剂混合物得到优化。 在下流式反应器中进行裂解反应后，分离反应产物，将废催化剂导向汽提和再生段。 还描述了在设备中执行的FCC处理。

公开(公告)号：US20020162487A1

公开(公告)日：2002-11-07

申请号：US10114037

申请日：2002-04-03

Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS

Inventor： Arnaldo Rodrigues D'Almeida ,  Cristiane Richard De Miranda ,  Gilson Campos

IPC: C04B007/14 ,  C04B028/08

CPC classification number: C04B28/08 ,  C04B2111/10 ,  C09K8/46 ,  C04B22/062 ,  C04B40/0028 ,  C04B40/06 ,  C04B2103/0086 ,  C04B22/10 ,  C04B22/16 ,  C04B22/0026 ,  C04B24/06 ,  C04B24/123

Abstract: Storable compositions and slurries for cementing oil and gas wells are described which comprise blast-furnace slag besides other additives which are usual in the cementing technique. The compositions and slurries are insufficiently activated (or are activated immediately before introducing them into the well), so that they can be stored for at least 72 hours (alternatively they may be stored indefinitely) without the setting of the composition and dispense with the addition of activation inhibitors. The use of the compositions and slurries in the cementing of oil and gas wells is also described.

Abstract translation: 描述了用于固井油气井的可储存组合物和浆料，其除了在固井技术中通常的其它添加剂之外还包括高炉渣。 组合物和浆料活性不足（或者在将它们引入孔之前立即被活化），使得它们可以储存至少72小时（或者它们可以无限期地储存），而不需要组合物的配置，并省去添加剂 的活化抑制剂。 还描述了在油气井的固井中使用组合物和浆料。

公开(公告)号：US20010020533A1

公开(公告)日：2001-09-13

申请号：US09241412

申请日：1999-02-02

Applicant: Petroleo Brasileiro S.A.-Petrobras

Inventor： Mr. Jacques Braile Salies

IPC: E21B007/12

CPC classification number: E21B33/14 ,  E21B33/143

Abstract: Abstract of DisclosureA method for drilling and completing oil wells of small intermediate diameter, in particular for application in ultra deep water. The method includes two drilling and running stages. The first stage of drilling and running provides for drilling the well and running at least first and second casings. The second stage provides for drilling and running at least two and more preferably three suspended liners.

Abstract translation: 摘要摘要一种钻井和完成小中径油井的方法，特别适用于超深水。 该方法包括两个钻孔和运行阶段。 钻井和运行的第一阶段提供钻井并运行至少第一和第二壳体。 第二阶段提供钻井和运行至少两个，更优选三个悬挂衬垫。

公开(公告)号：US12280860B2

公开(公告)日：2025-04-22

申请号：US17555749

申请日：2021-12-20

Applicant: PETROLEO BRASILEIRO S.A.—PETROBRAS

Inventor： Mario Germino Ferreira Da Silva ,  Antonio Jose Perez Rodrigues De Britto ,  Francisca Ferreira Do Rosario ,  Bruno Barbosa Castro ,  Rosane Alves Fontes

IPC: B63G8/00 ,  B08B9/032 ,  F16L55/24

Abstract: In order to meet the objectives described above, the present invention provides a robot for detecting breakdown of NORM (Naturally Occurring Radioactive Materials) in a production system, in order to plan operations to remove scale containing radioactive material, and for decommissioning subsea system operations. The fields of application are the area of flow assurance and reservoir management, using operations to chemically remove scale containing NORM in the production system, and to improve the safety of the decommissioning processes of production systems. The invention allows the position of the scale inside the production system to be safely detected, such as, for example, the beginning of the deposit inside a production line, the extension of the deposit, and the end of the deposit, as well as whether the deposit occurred at different points along the production line.

公开(公告)号：US12203919B2

公开(公告)日：2025-01-21

申请号：US17564849

申请日：2021-12-29

Applicant: PETROLEO BRASILEIRO S.A.—PETROBRAS ,  UNIVERSIDADE FEDERAL DE GOIAS—UFG

Inventor： Igor Pereira Da Silva ,  Boniek Gontijo Vaz ,  Gesiane Da Silva Lima ,  Iris Medeiros, Jr. ,  Ruver Rodrigues Feitosa Ramalho

IPC: G01N33/24 ,  H01J49/16

Abstract: The present invention relates to a method for detecting and mapping the spatial distribution of organic compounds aiming to understand how such organic compounds are distributed on the surfaces of reservoir rocks subjected to injection fluids for oil recovery purposes. The DESI and LAESI techniques may be used in the analysis of rocks from trials of oil recovery in small or large scale. Furthermore, both techniques may be applied in the analysis of compounds present on the surfaces of minerals from aquatic environments.