Title (en)

CASING ALIGNMENT TOOL

Publication

EP 0106549 A3 19850508 (EN)

Application

EP 83305501 A 19830920

Priority

US 43330782 A 19821007

Abstract (en)

[origin: EP0106549A2] An oil well casing alignment tool is disclosed wherein a casing section that has been elevated to an upright position, aligns the upright casing and locks it in a vertical position while permitting the casing to be axially rotated until it locks it into the sealing point of the previous casing section.

IPC 1-7

E21B 19/00; E21B 19/20

IPC 8 full level

E21B 19/00 (2006.01); E21B 19/20 (2006.01)

CPC (source: EP)

E21B 19/00 (2013.01); E21B 19/20 (2013.01)

Citation (search report)

• [Y] US 2828024 A 19580325 - TRUE MARTIN E
• [Y] GB 898572 A 19620614 - DOWTY ROTOL LTD
• [A] US 2235265 A 19410318 - SHOPE CLYDE A
• [Y] US 2416815 A 19470304 - CALHOUN INGRAM X
• [Y] GB 2063333 A 19810603 - G P I NII NIKELEVOKOBALTOVOI I

Designated contracting state (EPC)

DE GB NL

DOCDB simple family (publication)

EP 0106549 A2 19840425; EP 0106549 A3 19850508; EP 0106549 B1 19901003; CA 1238574 A 19880628; DE 3381921 D1 19901108; NO 163198 B 19900108; NO 163198 C 19900418; NO 833643 L 19840409

DOCDB simple family (application)

EP 83305501 A 19830920; CA 438513 A 19831006; DE 3381921 T 19830920; NO 833643 A 19831006