公开(公告)号：US20240068938A1

公开(公告)日：2024-02-29

申请号：US18456079

申请日：2023-08-25

申请人： PETRÓLEO BRASILEIRO S.A. - PETROBRAS ,  UNIVERSIDADE TIRADENTES - UNIT ,  INSTITUTO DE TECNOLOGIA E PESQUISA - ITP

发明人： LEONARDO DOS SANTOS PEREIRA ,  FABIANE SANTOS SERPA ,  BRUNO BARBOSA CASTRO ,  JAILTON FERREIRA DO NASCIMENTO ,  GABRIELA MENEZES SILVA ,  ELOISA BORGES E BORGES ,  GUSTAVO RODRIGUES BORGES ,  CLAUDIO DARIVA ,  ELTON FRANCESCHI ,  ELVIO BARRETO DE MELO FILHO

IPC分类号： G01N21/3577 ,  G01N21/359 ,  G01N33/18

CPC分类号： G01N21/3577 ,  G01N21/359 ,  G01N33/18 ,  G01N2201/129

摘要： The present invention refers to a method for online monitoring, without the need for sampling and in real time, the precipitation of inorganic salts in aqueous streams related to the petroleum industry. This method is based on the use of the NIR technique with the aid of the FBRM technique. The NIR technique makes it possible to collect spectra and monitor the variation in absorbances, concerning the formation of particles of inorganic salts in the aqueous solution, while the FBRM technique provides the number and size of precipitated particles through the reflection of light emitted by a beam of Incident light in aqueous systems in the presence of different solvents, pH conditions, supersaturation, temperature and pressure. Thus, a set of collected NIR spectra is correlated with data provided by FBRM through a mathematical (chemometric) treatment and mathematical models based on artificial neural networks combined with principal component analysis were employed to estimate the quantity and size distribution of particles precipitated over time. The application of these process analyzers helps to understand the formation and growth of inorganic salt particles from the produced water (rich in carbonates and sulfates), which can precipitate at different stages in oil production and transportation facilities.

公开(公告)号：US20240062937A1

公开(公告)日：2024-02-22

申请号：US18354079

申请日：2023-07-18

申请人： PETRÓLEO BRASILEIRO S.A. - PETROBRAS ,  CENTRO BRASILEIRO DE PESQUISAS FÍSICAS

发明人： RUBEM LUIS SOMMER ,  ALEXANDRE ZACARIAS IGNACIO PEREIRA ,  BRUNO GOMES DA SILVA ,  CILENE LABRE ALVES DA SILVA DE MEDEIRO ,  ANDRE LEIBSOHN MARTINS ,  ALEXANDRE MELLO DE PAULA SILVA ,  MARCUS VINICIUS DUARTE FERREIRA ,  ELVIS OSWALDO LÓPEZ MEZA ,  FERNANDO SALATIEL DE OLIVEIRA ,  HUGO FRANCISCO LISBOA SANTOS ,  BRUNO BARBOSA CASTRO ,  HELGA ELISABETH PINHEIRO SCHLUTER ,  PAULO GUILHERME OLIVEIRA DE OLIVEIRA ,  JOÃO PAULO SINNECKER

IPC分类号： H01F7/02 ,  E21B37/00 ,  F16L58/00 ,  B03C1/033 ,  B03C1/28

CPC分类号： H01F7/0294 ,  E21B37/00 ,  F16L58/00 ,  B03C1/0332 ,  B03C1/288 ,  B03C2201/18

摘要： The present invention refers to a device with diametral magnetic arrays for installations in magnetic SUBs, aiming the remediation and mitigation of inorganic and organic scales in production columns. The proposed magnetic device meets several specific criteria based on the magnetohydrodynamic model (MHD). After applying the said device with the proposed magnetic field, an efficiency of the scale inhibition was experimentally observed through laboratory tests, obtained from the values of the masses encrusted in the walls of the experimental bench system in the laboratory, with respect to the application without magnetic field. The device described herein can be installed in any pipeline used to transport fluids, including underwater pipelines for oil wells. These fluids can be oils, lubricants, gases, steams, water, petroleum or liquids in general.