Title:
DOWNHOLE CABLE
Document Type and Number:
WIPO Patent Application WO/2013/144073
Kind Code:
A1
Abstract:
The present invention pertains to a cable comprising: - at least one conductor coated by an insulation coating layer, - a first protective layer surrounding said insulation coating layer, said first protective layer at least comprising, but preferably being made of, a tetrafluoroethylene (TFE) copolymer comprising from 0.8% to 2.5% by weight of recurring units derived from at least one perfluorinated alkyl vinyl ether having formula (I) here below: CF2=CF-O-Rf, wherein Rf is a linear or branched C3-C5 perfluorinated alkyl group or a linear or branched C3-C12 perfluorinated alkyl group comprising one or more ether oxygen atoms, said TFE copolymer having a melt flow index comprised between 1.0 and 6.0 g/10 min, as measured according to ASTM D1238 at 372°C under a load of 5 Kg [polymer (F)]; - optionally, a second protective layer surrounding said first protective layer, and - an armor shell surrounding said first or second protective layer. The invention also pertains to use of the cable in downhole wells.
Inventors:
COLAIANNA PASQUA (IT)
MIRENDA MARCO (IT)
BESANA GIAMBATTISTA (IT)
BRINATI GIULIO (IT)
MIRENDA MARCO (IT)
BESANA GIAMBATTISTA (IT)
BRINATI GIULIO (IT)
Application Number:
PCT/EP2013/056235
Publication Date:
October 03, 2013
Filing Date:
March 25, 2013
Export Citation:
Assignee:
SOLVAY SPECIALTY POLYMERS IT (IT)
International Classes:
H01B7/29
Domestic Patent References:
| WO2009146277A1 | 2009-12-03 |
Foreign References:
| US20120031607A1 | 2012-02-09 | |||
| US20090192259A1 | 2009-07-30 |
Attorney, Agent or Firm:
BENVENUTI, Federica et al. (Rue de Ransbeek 310, Bruxelles, BE)
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