Title:
COLLAPSIBLE COLLAPSIBLE INSPECTION DEVICE FOR WELL LAYER
Document Type and Number:
Japanese Patent JP3416292
Kind Code:
B2
Abstract:
PURPOSE: To provide a compact collapsible inspection device for well layer which meets the requirements of different sondes simultaneous by coupling together the ends of a section to hold a bus in contacting the wall of a well, a section having a measuring pad, and a section to be held apart from the wall.
CONSTITUTION: A collapsible inspection device for well layer is composed of a section 15 coupled with a cable 11 through a coupling member 16, a section 17 suspended at the section 15 to form the intermediate part, and a section 18 to form the lower part. The section 15 presses the pipe wall to the wall of a well by a bow-shaped elastic member 10 provided in the central part. This structure well suits a neutron layer inspection sonde. The section 17 is equipped with a measuring pad 21 for pressing to the wall, and in the inside a gamma/gamma device for measuring the layer density is accommodated. The section 18 is equipped with a plurality of spacers 24, to separate it from the wall and holds a sonde, etc., including guide coils.
Inventors:
Bronislaw, Zieman
Alain, Georges, Marie, Del Puche
Carlton, foil, david
Alain, Georges, Marie, Del Puche
Carlton, foil, david
Application Number:
JP24163494A
Publication Date:
June 16, 2003
Filing Date:
October 05, 1994
Export Citation:
Assignee:
Schlumberger, Overseas, S, A
International Classes:
E21B47/00; G01N9/24; G01N27/04; G01V3/02; G01V5/10; G01V11/00; (IPC1-7): G01V11/00; E21B47/00; E21B47/01; G01N9/24; G01N27/04; G01V3/02; G01V5/10
Domestic Patent References:
| JP58174883A |
Other References:
【文献】米国特許4171031(US,A)
【文献】米国特許4614250(US,A)
【文献】仏国特許出願公開2079559(FR,A1)
【文献】欧州特許出願公開4595055(EP,A1)
【文献】米国特許4614250(US,A)
【文献】仏国特許出願公開2079559(FR,A1)
【文献】欧州特許出願公開4595055(EP,A1)
Attorney, Agent or Firm:
Kazuo Sato (3 others)