(19)
(11)
EP 0 060 840 A1
(12)
(43)
Date of publication:
29.09.1982
Bulletin 1982/39
(21)
Application number:
81901359.0
(22)
Date of filing:
06.10.1980
(51)
International Patent Classification (IPC):
E21B
33/
13
( . )
E21B
7/
20
( . )
E21B
7/
18
( . )
E21B
33/
14
( . )
(86)
International application number:
PCT/US1980/001312
(87)
International publication number:
WO 1982/001211
(
15.04.1982
Gazette 1982/10)
(84)
Designated Contracting States:
FR GB NL
(71)
Applicant:
Exxon Production Research Company
Houston Texas 77001 (US)
(72)
Inventor:
GAINES, Christopher Matthew
Kuala Lumpur (MY)
(74)
Representative:
Field, Roger Norton (GB), et al
Carpmaels & Ransford 43 Bloomsbury Square
GB-London WC1A 2RA
GB-London WC1A 2RA (GB)
(54)
METHOD AND APPARATUS FOR RUNNING AND CEMENTING PIPE