Stabilizer with replaceable sub-assemblies

Details Stabilizer with replaceable sub-assemblies Stabilizer with replaceable sub-assemblies

E - Fixed Constructions

21

B

255/28

E21B 17/10 (2006.01) E21B 10/30 (2006.01)

Patent

CA 1044220

ABSTRACT OF THE DISCLOSURE A rotary stabilizer for a drill string includes a stabilizer body and a plurality of stabilizer assemblies receivable therein. Each assembly comprises a generally cylindrical stabilizer member rotatable on a hollow shaft, mounting blocks for supporting each end of the shaft, and a tray member extending between the mounting blocks, and partically surrounding the stabilizer member so as to expose a portion of the outer surface thereof. A bore is provided in each mounting block to pass fluid to the shaft and then to the stabilizer for lubrication thereof. The main body has removable box and pin ends and the stabilizer assemblies are also removable and repairable, resulting in a stabilizer on which any part which may be subject to wear or damage can be replaced with little effort or cost.

268048

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