EP 2836676 A4 20160727 - METHOD OF INCREASING THE PERMEABILITY OF A SUBTERRANEAN FORMATION BY CREATING A MULTIPLE FRACTURE NETWORK
Title (en)
METHOD OF INCREASING THE PERMEABILITY OF A SUBTERRANEAN FORMATION BY CREATING A MULTIPLE FRACTURE NETWORK
Title (de)
VERFAHREN ZUR ERHÖHUNG DER DURCHLÄSSIGKEIT EINER UNTERIRDISCHEN FORMATION DURCH ERZEUGUNG EINES NETZWERKS MIT MEHREREN FRAKTUREN
Title (fr)
PROCÉDÉ CONSISTANT À AUGMENTER LA PERMÉABILITÉ D'UNE FORMATION SOUTERRAINE EN GÉNÉRANT UN RÉSEAU DE MULTIPLES FRACTURES
Publication
Application
Priority
- US 201261623515 P 20120412
- US 2013036176 W 20130411
Abstract (en)
[origin: WO2013155307A2] The stimulated rock volume (SRV) of a subterranean formation may be increased by pumping viscous fracturing fluid into the formation in a first stage to create or enlarge a primary fracture, decreasing the pumping in order for the fluid to increase in viscosity within the primary fracture, and then continuing to pump viscous fluid into the formation in a second stage. The fluid pumped into the second stage is diverted away from the primary fracture and a secondary fracture is created. The directional orientation of the secondary fracture is distinct from the directional orientation of the primary fracture. The fluid of the first stage may contain a viscosifying polymer or viscoelastic surfactant or may be slickwater.
IPC 8 full level
E21B 43/26 (2006.01); C09K 8/60 (2006.01); E21B 43/267 (2006.01)
CPC (source: EP US)
C09K 8/605 (2013.01 - EP US); C09K 8/685 (2013.01 - EP US); C09K 8/885 (2013.01 - EP US); E21B 43/26 (2013.01 - EP US); E21B 43/267 (2013.01 - EP US); C09K 2208/26 (2013.01 - EP US); C09K 2208/30 (2013.01 - EP US)
Citation (search report)
- [Y] US 2009194273 A1 20090806 - SURJAATMADJA JIM B [US], et al
- [Y] US 2004102330 A1 20040527 - ZHOU JIAN [US], et al
- [Y] WO 2011145966 A1 20111124 - BARMATOV EVGENY BORISOVICH [RU], et al
- See references of WO 2013155307A2
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
DOCDB simple family (publication)
WO 2013155307 A2 20131017; WO 2013155307 A3 20140109; AU 2013245868 A1 20141030; CA 2870002 A1 20131017; CO 7101238 A2 20141031; EP 2836676 A2 20150218; EP 2836676 A4 20160727; IN 8462DEN2014 A 20150508; MX 2014012274 A 20150212; NZ 700734 A 20160527; RU 2014145323 A 20160610; US 2014014338 A1 20140116
DOCDB simple family (application)
US 2013036176 W 20130411; AU 2013245868 A 20130411; CA 2870002 A 20130411; CO 14227210 A 20141014; EP 13775769 A 20130411; IN 8462DEN2014 A 20141010; MX 2014012274 A 20130411; NZ 70073413 A 20130411; RU 2014145323 A 20130411; US 201313861021 A 20130411