EP 2430284 A2 20120321 - PULLING AND COMPRESSING DEVICE
Title (en)
PULLING AND COMPRESSING DEVICE
Title (de)
ZUG- UND DRUCKVORRICHTUNG
Title (fr)
DISPOSITIF DE TRACTION ET DE COMPRESSION
Publication
Application
Priority
- EP 2010002737 W 20100505
- DE 102009020964 A 20090512
- DE 102009054183 A 20091121
Abstract (en)
[origin: WO2010130357A2] The invention relates to a pulling and compressing device for horizontally installing tube and pipe lines below ground, for example for passing below embankments or rivers, wherein a lift skid having a clamping element is displaceably disposed on a frame. The clamping element serves for capturing the drill string or pipeline and moving forward a distance corresponding to the skid stroke in the one or the other direction. In order to achieve this, the clamping element comprises a coupling tube having a pressure medium hose disposed between spiral-shaped internal ribs of the coupling tube.
IPC 8 full level
E21B 7/20 (2006.01)
CPC (source: EP)
E21B 7/205 (2013.01)
Citation (search report)
See references of WO 2010130357A2
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 SE SI SK SM TR
DOCDB simple family (publication)
DE 102009054183 A1 20101118; EP 2430284 A2 20120321; EP 2430284 B1 20130501; WO 2010130357 A2 20101118; WO 2010130357 A3 20110106
DOCDB simple family (application)
DE 102009054183 A 20091121; EP 10720883 A 20100505; EP 2010002737 W 20100505