System and method for detecting watertightness in the annular space of flexible lines
AssigneePetroleo Brasileiro S.A. - Petrobras
InventorsPaulo Roberto Santos Poli, Joao Marcio De Castilho Santos, Gustavo Pinto Pires, Cassio Kuchpil, Carlos Eduardo Maia De Souza
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Abstract
A system for detecting the watertightness or flooding of an annulus of flexible lines from a connector. The system includes: an assembly of plunger and cylinder that are connected by a rod to a chamber that acts as a pilot valve. The assembly is connected directly to the outlet of a safety valve of a connector of the flexible line, in which same are fitted using a sealing system. The system is operated by commands sent to a ROV that has an arm and that controls the system using a handle.
Claims11
A system for detecting water tightness of an annulus in a flexible line from a connector, the system comprising:
- a device containing a plunger and a cylinder, a sealing system, a pressure gauge and a rod, the rod being connected to a chamber for controlled piston-cylinder-type actuation, a face of the cylinder being open and configured to be fitted into a safety valve of the connector of the flexible line;
- a remotely operated underwater vehicle (ROV) including an arm that moves a handle;
- a control chamber;
- and
- a coupling and anchoring system.
Dependencies are inferred from the claim text.