Downhole tool with replaceable tool sleeve sections

Details Downhole tool with replaceable tool sleeve sections Downhole tool with replaceable tool sleeve sections

E - Fixed Constructions

21

B

255/12

E21B 17/10 (2006.01) E21B 10/26 (2006.01) E21B 10/62 (2006.01) E21B 17/02 (2006.01)

Patent

CA 1205068

ABSTRACT OF THE DISCLOSURE A downhole tool for insertion in a drill stem includes elongated cylindrical half sleeve tool sections adapted to be non-rotatably supported on an elongated cylindrical body. The tool sections are mountable on and removable from the body without disconnecting either end of the tool from a drill stem. The half sleeve tool sections are provided with tapered axially extending flanges on their opposite ends which fit in corresponding tapered recesses formed on the tool body and the tool sections are retained on the body by a locknut threadedly engaged with the body and engageable with an axially movable retaining collar. The tool sections may be drivably engaged with axial keys formed on the body or the tool sections may be formed with flat surfaces on the sleeve inner sides cooperable with complementary flat surfaces formed on a reduced diameter portion of the body around which the tool sections are mounted. -32-

433566

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