EP 0960262 A1 19991201 - DEVICE BY A RETRIEVABLE BRIDGE PLUG
Title (en)
DEVICE BY A RETRIEVABLE BRIDGE PLUG
Title (de)
VORRICHTUNG ZUM EINSATZ MIT PROVISORISCHEN STOPFEN
Title (fr)
DISPOSITIF A UTILISER AVEC UN BOUCHON PROVISOIRE
Publication
Application
Priority
- NO 9800009 W 19980113
- NO 970561 A 19970206
Abstract (en)
[origin: WO9835130A1] A device for use with a retrievable bridge plug (30) comprising an upper packer element (3) and a lower packer element (11). The upper packer element (3) is connected to an upper chain (6), which can rotate around a first pin (5). Upper chain (6) is rotatably connected to a lower chain (8) by a second pin (7). Lower chain (8) can rotate around a third pin (9). An angle ( alpha ) is formed between the longitudinal axis of the bridge plug and a line extending through the first pin (5) and the second pin (7), and correspondingly through the second pin (7) and the third pin (9), which is greater than zero when upper chain (6) and lower chain (8) is drawn. Upper chain (6) and lower chain (8) are arranged for, at setting, to expand radially by compression of upper packer bracket (3) against lower packer bracket (12), for forming a mechanical barrier for upper packer element (3) and lower packer element (11).
IPC 1-7
IPC 8 full level
E21B 23/01 (2006.01); E21B 33/12 (2006.01); E21B 33/129 (2006.01)
CPC (source: EP)
E21B 23/01 (2013.01); E21B 33/1216 (2013.01); E21B 33/1293 (2013.01)
Citation (search report)
See references of WO 9835130A1
Designated contracting state (EPC)
DK FR GB NL
DOCDB simple family (publication)
WO 9835130 A1 19980813; AU 5782298 A 19980826; AU 726860 B2 20001123; BR 9807558 A 20000201; CA 2279374 A1 19980813; EP 0960262 A1 19991201; EP 0960262 B1 20030716; NO 304615 B1 19990118; NO 970561 D0 19970206; NO 970561 L 19980807
DOCDB simple family (application)
NO 9800009 W 19980113; AU 5782298 A 19980113; BR 9807558 A 19980113; CA 2279374 A 19980113; EP 98901587 A 19980113; NO 970561 A 19970206