Title:
DEVICE FOR PROTECTING A DEGRADABLE RUPTURE PIN FOR AN INSULATING SYSTEM IN AN ANNULAR BARRIER
Document Type and Number:
WIPO Patent Application WO/2017/009463
Kind Code:
A1
Abstract:
The invention relates to a fluid control device (500) for the treatment of a well and for expanding a liner (100) radially outwards, said device comprising a piston (550) translatably mounted in a chamber (320), and degradable immobilizing means (590) which follow the translational movement of the piston (550), the degradable (590) immobilizing means being translationally movable in a recess (700). The device comprises protection means (800) insulating the recess (700) from a discharge duct (810) designed to introduce a fluid that degrades the rupture pin (590) in said recess (700), such that, in the initial state, the protection means (800) protect the degradable immobilizing means (590), the protection means (800) being designed to break when the pressure in the recess reaches a threshold pressure difference (ΔPs), thus allowing the breakdown of the degradable immobilizing means (900).
Inventors:
TANGUY GWENAËL (FR)
ROSELIER SAMUEL (FR)
SALTEL JEAN-LOUIS (FR)
ROSELIER SAMUEL (FR)
SALTEL JEAN-LOUIS (FR)
Application Number:
PCT/EP2016/066940
Publication Date:
January 19, 2017
Filing Date:
July 15, 2016
Export Citation:
Assignee:
SALTEL IND (FR)
International Classes:
E21B23/06; E21B33/127; E21B34/06
Domestic Patent References:
| WO2014154480A1 | 2014-10-02 |
Foreign References:
| US5400855A | 1995-03-28 |
Attorney, Agent or Firm:
REGIMBEAU (FR)
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