EP 2440743 B1 20160330 - A WIRE SCREEN FOR A WELL AND METHOD FOR MAKING IT
Title (en)
A WIRE SCREEN FOR A WELL AND METHOD FOR MAKING IT
Title (de)
DRAHTGITTER FÜR EIN BOHRLOCH UND VERFAHREN ZU SEINER HERSTELLUNG
Title (fr)
TUBE FILTRE POUR PUITS ET SON PROCÉDÉ DE FABRICATION
Publication
Application
Priority
- IB 2010001413 W 20100611
- IT PI20090073 A 20090611
Abstract (en)
[origin: WO2010143060A1] A screen structure (23) for a well casing comprises a plurality of parallel slats (40) integral to each other, arranged to define a tubular body (50). In particular, the slats (40) are spaced from each other such that the tubular body (50) exposes a plurality of longitudinal slit passageways (41) for a fluid. Each slit is defined between two adjacent slats (40). This way, the slats (40) provide a plurality of solid portions spaced by respective void portions, i.e. by respective longitudinal slits (41), such that, in use, the void portions are arranged in a substantially vertical direction, i.e. they are arranged parallel to a longitudinal axis (51) of the tubular body. In particular, the slats (40) are blades of a predetermined size, said blades tapered along a direction that extends from outside to inside the tubular body (50), in case of extraction wells, or according to an opposite direction, in case of a reinjection well. The diverging cross section and the vertical arrangement of the slits makes it possible to minimize fluid pressure drop.
IPC 8 full level
E21B 43/08 (2006.01)
CPC (source: EP)
E21B 43/088 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
WO 2010143060 A1 20101216; EP 2440743 A1 20120418; EP 2440743 B1 20160330; IT 1400406 B1 20130531; IT PI20090073 A1 20101212
DOCDB simple family (application)
IB 2010001413 W 20100611; EP 10763418 A 20100611; IT PI20090073 A 20090611