EP 2917469 A2 20150916 - MULTI-ZONE SCREENED FRACTURING SYSTEM
Title (en)
MULTI-ZONE SCREENED FRACTURING SYSTEM
Title (de)
ABGESCHIRMTES MEHRBEREICHS-FRAKTURIERUNGSSYSTEM
Title (fr)
SYSTÈME DE FRACTURATION TAMISÉ À ZONES MULTIPLES
Publication
Application
Priority
- US 201213670125 A 20121106
- US 2013068424 W 20131105
Abstract (en)
[origin: WO2014074485A2] A multi-zone formation treatment assembly has sections disposed on a tubular structure in a borehole. An isolation element disposed on the tubular structure that isolates a borehole annulus around the section from the other sections, and a flow valve disposed on the tubular structure is selectively operable between opened and closed conditions permitting and preventing fluid communication between the through-bore and the borehole annulus. A screen disposed on the tubular structure communicates with the borehole annulus, and a closure disposed on the tubular structure at least prevents fluid communication from the through-bore to the screen. A workstring of the assembly can be manipulated in the tubular structure relative to each section in the same trip to: open the flow valve, position in the through-bore relative to the open flow valve, deliver the treatment from an outlet to the section through the open flow valve, and close the flow valve.
IPC 8 full level
E21B 43/04 (2006.01); E21B 34/14 (2006.01)
CPC (source: CN EP)
E21B 34/08 (2013.01 - CN); E21B 43/04 (2013.01 - CN); E21B 43/08 (2013.01 - CN); E21B 43/267 (2013.01 - CN EP)
Citation (search report)
See references of WO 2014074485A2
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 RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2014074485 A2 20140515; WO 2014074485 A3 20141211; AU 2013341436 A1 20150521; BR 112015010238 A2 20170711; CA 2890057 A1 20140515; CN 104854303 A 20150819; EA 201590894 A1 20150930; EP 2917469 A2 20150916; MX 2015005684 A 20160303
DOCDB simple family (application)
US 2013068424 W 20131105; AU 2013341436 A 20131105; BR 112015010238 A 20131105; CA 2890057 A 20131105; CN 201380065633 A 20131105; EA 201590894 A 20131105; EP 13824541 A 20131105; MX 2015005684 A 20131105