(19)

(11)

EP 3 099 891 A1

(12)

(43) Date of publication: 07.12.2016 Bulletin 2016/49 (21) Application number: 14706704.5 (22) Date of filing: 31.01.2014

(51) International Patent Classification (IPC):  E21B 33/124(2006.01) E21B 33/14(2006.01) E21B 33/134(2006.01) E21B 33/16(2006.01) (86) International application number: PCT/NO2014/000010 (87) International publication number: WO 2015/115905 (06.08.2015 Gazette 2015/31)

(84) Designated Contracting States: 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 Designated Extension States: BA ME (71) Applicant: Archer Oiltools AS 4312 Sandnes (NO)	(72) Inventors: CONNELL, Paul Lowell Spring, TX 77379 (US) NORHEIM, Lars Harald Houston, TX 77066-1811 (US) (74) Representative: Fluges patent as  Pb. 27 1629 Gamle Fredrikstad 1629 Gamle Fredrikstad (NO)