Down-hole tool with centralising component
DC
First Claim
1. A down-hole tool comprising a housing attachable to a work string or drill string, wherein the housing is adapted to support a floating component such that the floating component is free to move in a lateral or radial manner relative to the housing within predetermined limits.
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Accused Products
Abstract
A tool for use in a well bore has a housing attachable to a work string or drill string wherein the housing supports a floating component that is free to move in the lateral or radial members relative to the housing within predetermined limits. The floating component is suitable for supporting active tool components such as wire bristles, scraper blades or other functional apparatus. Typically, the floating component is provided as a sleeve around the housing held within axial limits, while enabling radial movement.
43 Citations
19 Claims
- 1. A down-hole tool comprising a housing attachable to a work string or drill string, wherein the housing is adapted to support a floating component such that the floating component is free to move in a lateral or radial manner relative to the housing within predetermined limits.
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19. A downhole tool comprising a housing attached to a work string or drill string, wherein the work string or drill string is located inside well casing or liner, and wherein the housing is adapted to support a floating component which is free to move in a lateral or radial manner relative to the housing and the work string or drill string, and which is adapted to be self-centralising within the well casing or liner independent of the position or extent of centralisation of the work string or drill string.
Specification
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- Resources
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Current AssigneeSpecialised Petroleum Services Group Limited (Schlumberger NV)
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Original AssigneeSpecialised Petroleum Services Group Limited (Schlumberger NV)
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InventorsHowlett, Paul, Carmichael, Mark
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Primary Examiner(s)SCHOEPPEL, ROGER J
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Application NumberUS09/260,274Time in Patent Office637 DaysField of Search166/170, 166/173, 166/175, 166/311, 166/241.7US Class Current166/173CPC Class CodesE21B 17/1078 Stabilisers or centralisers...E21B 37/02 Scrapers specially adapted ...
