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Title:
A CLEAN-OUT TOOL FOR CLEANING OUT A WELL BORE AND A METHOD FOR CLEANING OUT A WELL BORE USING SUCH A CLEAN-OUT TOOL
Document Type and Number:
WIPO Patent Application WO/2015/016714
Kind Code:
A3
Abstract:
A clean-out tool (1) for cleaning out a well bore (WB), said clean-out tool (1) comprising: - a helical displacing member (3) comprising a central shaft (4) and a helical blade flight (5) with a longitudinal axis (8); - a tubular barrel (2) surrounding said helical displacing member (3); - a drive mechanism (7); and - said tubular barrel (2) comprising a hollow bit (12) at a free end of the tubular barrel (2), and wherein said hollow bit (12) is provided with scoop openings (13), characterized in that said displacing member (3) is secured against rotation about said longitudinal axis (8), in that said tubular barrel (2) is rotatably journalled in a first bearing (9) and a second bearing (10) spaced from the first bearing (9), said second bearing (10) being provided within the hollow bit (12), and in that said drive mechanism (7) is arranged for rotatably driving said tubular barrel (2).

Inventors:
DAVIDS HENDRIK BEREND (NL)
Application Number:
PCT/NL2014/050536
Publication Date:
November 12, 2015
Filing Date:
July 31, 2014
Export Citation:
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Assignee:
OLDENAMP B V (NL)
International Classes:
E21B27/04; E21B7/00; E21B10/44; E21B37/00
Domestic Patent References:
WO2000058602A12000-10-05
Foreign References:
JP2005200841A2005-07-28
US2915288A1959-12-01
DE2425404A11975-12-04
GB2114185A1983-08-17
NL1036834C22009-10-19
Other References:
OLDENAMP: "Cleanout tool", 9 February 2014 (2014-02-09), XP054975765, Retrieved from the Internet [retrieved on 20150309]
Attorney, Agent or Firm:
JANSEN, C.M. (Carnegieplein 5, 2517 KJ Den Haag, NL)
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