EP 3807490 A4 20220105 - ADVANCED STABILIZING SYSTEM FOR DEEP DRILLING
Title (en)
ADVANCED STABILIZING SYSTEM FOR DEEP DRILLING
Title (de)
VERBESSERTES STABILISIERUNGSSYSTEM ZUM TIEFBOHREN
Title (fr)
SYSTÈME DE STABILISATION AVANCÉ POUR FORAGE PROFOND
Publication
Application
Priority
IB 2018054235 W 20180612
Abstract (en)
[origin: WO2019239180A1] The present invention relates to a stabilizing system (100) adapted to be used in a deep drilling system. The stabilizing system (100) comprises a longitudinal housing (110) and a spring (140) preferably a helical spring, arranged inside the housing (110). Thereby, the stabilizing system (100) is contracted and the spring (140) is compressed along the longitudinal axis of the stabilizing system (100) when an external load is applied in longitudinal direction onto the stabilizing system (100). The transversal diameter of the stabilizing system (100) increases when the stabilizing system (100) is contracted. Further, the transversal diameter of the stabilizing system (100) decreases when the stabilizing system (100) expands along the longitudinal axis.
IPC 8 full level
E21B 17/10 (2006.01)
CPC (source: EP NO US)
E21B 17/1014 (2013.01 - EP NO); E21B 17/1078 (2013.01 - EP NO US); E21B 17/1014 (2013.01 - US); E21B 17/1021 (2013.01 - US)
Citation (search report)
- [I] US 4572305 A 19860225 - SWIETLIK GEORGE [GB]
- [A] WO 2016055822 A1 20160414 - ABU DHABI NAT OIL CO [AE]
- [A] US 5318138 A 19940607 - DEWEY CHARLES H [US], et al
- [A] WO 2016204796 A1 20161222 - PORTABLE COMPOSITE STRUCTURES INC [US]
- See also references of WO 2019239180A1
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 2019239180 A1 20191219; AU 2018427665 A1 20210114; BR 112020025377 A2 20210316; CA 3103650 A1 20191219; CN 112400050 A 20210223; CN 112400050 B 20240614; EP 3807490 A1 20210421; EP 3807490 A4 20220105; MX 2020013615 A 20210527; NO 20210023 A1 20210108; US 2021254416 A1 20210819; US 2022251910 A1 20220811
DOCDB simple family (application)
IB 2018054235 W 20180612; AU 2018427665 A 20180612; BR 112020025377 A 20180612; CA 3103650 A 20180612; CN 201880095603 A 20180612; EP 18922842 A 20180612; MX 2020013615 A 20180612; NO 20210023 A 20210108; US 201817252078 A 20180612; US 202217729530 A 20220426