EP 1149980 A3 20020130 - Downhole hydraulic power unit
Title (en)
Downhole hydraulic power unit
Title (de)
Hydraulische Bohrlochversorgungseinheit
Title (fr)
Générateur de pression hydraulique de fond de puits
Publication
Application
Priority
US 55869500 A 20000425
Abstract (en)
[origin: EP1149980A2] A self-contained and downhole powered hydraulic power unit (10) is used to supply pressurized hydraulic fluid to manipulate downhole tools. In one embodiment, the unit (10) is self contained and is powered by a battery located down hole and can be lowered into the well by wire line, coiled tubing or tubing process. When properly positioned and actuated the unit (10) will deliver fluid to actuate the downhole tool. A battery-powered motor drives a hydraulic piston in a cylinder to pump fluid carried by the unit to the well tool. <IMAGE>
IPC 1-7
IPC 8 full level
E21B 23/04 (2006.01); E21B 33/127 (2006.01)
CPC (source: EP)
E21B 23/042 (2020.05); E21B 33/1275 (2013.01)
Citation (search report)
- [XY] EP 0697500 A2 19960221 - HALLIBURTON CO [US]
- [Y] US 3876471 A 19750408 - JONES JACK W
- [XY] US 2839142 A 19580617 - HUBER THEODORE A
- [A] US 5404946 A 19950411 - HESS ALFRED E [US]
- [A] US 5228519 A 19930720 - CORONADO MARTIN P [US], et al
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1149980 A2 20011031; EP 1149980 A3 20020130; AU 3877301 A 20011101; CA 2344751 A1 20011025; NO 20012010 D0 20010424
DOCDB simple family (application)
EP 01303588 A 20010419; AU 3877301 A 20010420; CA 2344751 A 20010424; NO 20012010 A 20010424