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1. WO2020113296 - SYSTEM AND METHOD FOR DETECTING THE WATERTIGHTNESS OF THE ANNULAR SPACE IN FLEXIBLE PIPES

Publication Number WO/2020/113296
Publication Date 11.06.2020
International Application No. PCT/BR2019/050513
International Filing Date 02.12.2019
IPC
E21B 47/10 2012.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
47Survey of boreholes or wells
10Locating fluid leaks, intrusions or movements
E21B 47/06 2012.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
47Survey of boreholes or wells
06Measuring temperature or pressure
E21B 49/08 2006.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
49Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
08Obtaining fluid samples or testing fluids, in boreholes or wells
E21B 34/00 2006.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
34Valve arrangements for boreholes or wells
G01L 7/18 2006.01
GPHYSICS
01MEASURING; TESTING
LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
7Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
18using liquid as the pressure-sensitive medium, e.g. liquid-column gauges
G01M 3/28 2006.01
GPHYSICS
01MEASURING; TESTING
MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
3Investigating fluid tightness of structures
02by using fluid or vacuum
26by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
28for pipes, cables, or tubes; for pipe joints or seals; for valves
Applicants
  • PETRÓLEO BRASILEIRO S.A. - PETROBRAS [BR]/[BR]
Inventors
  • SANTOS POLI, Paulo Roberto
  • DE CASTILHO SANTOS, Joao Marcio
  • PINTO PIRES, Gustavo
  • KUCHPIL, Cassio
  • MAIA DE SOUZA, Carlos Eduardo
Agents
  • RODRIGUES SILVA, Francisco Carlos
  • ATEM FRANCISCHETTI, Bernardo
  • DE SOUZA E MARQUES, Luiz Augusto
Priority Data
BR 102018075029-103.12.2018BR
Publication Language Portuguese (PT)
Filing Language Portuguese (PT)
Designated States
Title
(EN) SYSTEM AND METHOD FOR DETECTING THE WATERTIGHTNESS OF THE ANNULAR SPACE IN FLEXIBLE PIPES
(FR) SYSTÈME ET PROCÉDÉ DE DÉTECTION DE L’ÉTANCHÉITÉ D’UN ESPACE ANNULAIRE DANS DES CONDUITS SOUPLES
(PT) SISTEMA E MÉTODO PARA DETECÇÃO DE ESTANQUEIDADE DO ESPAÇO ANULAR EM DUTOS FLEXÍVEIS
Abstract
(EN)
The present invention provides a system that makes it possible to detect the watertightness or flooding of annular spaces of flexible pipes from a connector comprising: a piston (3) and cylinder (4) assembly connected by a shaft to a chamber (19) that operates as a pilot valve, connected directly at the outlet of a PSV of a flexible pipe connector, coupled to the flexible pipes by a sealing system (6), in which the system is operated by commands sent to the ROV (2), which includes an arm (21) and controls the system via a manipulator (9). The present invention also describes the method for operating the device and how the results obtained lead to a pre-programmed conclusion as to the watertightness or flooding of the annular space. Further methods are provided for obtaining fluid samples in the annular space for subsequent analysis and for making it possible to remove PSVs from the connectors.
(FR)
La présente invention concerne un système permettant de détecter l’étanchéité ou une entrée d’eau dans des espaces annulaires de conduits souples à partir d’un raccord comprenant : un ensemble piston (3) et cylindre (4) reliés par une tige à une chambre (19) qui fonctionne comme une valve pilote, raccordés directement au niveau de la sortie d’une valve PSV d’un raccord de conduit souple, venant s’y emboîter au moyen d’un système d’étanchéité et de fermeture hermétique (6), le fonctionnement du système étant assuré par des commandes envoyées au ROV (2), qui comporte un bras (21) et qui commande le système à l'aide d’un manipulateur (9). La présente invention concerne également le procédé de fonctionnement du dispositif et la manière dont les résultats obtenus mènent à une conclusion pré-programmée d’étanchéité ou non de l’espace annulaire. D’autres procédés prévus visent à obtenir des échantillons de fluides dans l’espace annulaire en vue d’une analyse ultérieure et à permettre le retrait de PSV à partir des raccords.
(PT)
A presente invenção provê um sistema que permite detectar a estanqueidade ou alagamento em anulares de dutos flexíveis a partir de um conector compreendendo: conjunto êmbolo (3) e cilindro(4) interligados por uma haste a uma câmara (19) que funciona como uma válvula piloto, conectados diretamente na saída de uma válvula PSV de um conector de duto flexível, nos quais são encaixados usando um sistema de vedação e selagem (6), cujo funcionamento do sistema é realizado por comandos enviados ao ROV (2), que contém um braço (21) e que controla o sistema por um manipulador (9). A presente invenção também descreve o método de funcionamento do dispositivo e como os resultados obtidos levam a uma conclusão pré-programada de estanqueidade ou não do anular. Outros métodos previstos foram para obter amostras de fluidos no anular para posterior análise e permitir a retirada de PSV dos conectores.
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