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US 10,378,285 B2Granted
Downhole motor
AssigneeDynomax Drilling Tools Inc.
InventorDean Livingstone
Life of this patent
Estimating the term…
Abstract
A downhole mud motor is formed of plural housings containing at least a drive section and a transmission section. At least a housing of the plural housings has a longitudinal axis and incorporates a reaming section with one or more rotary reamers. Each of the one or more rotary reamers is mounted in a respective pocket for rotation about a transverse axis relative to the longitudinal axis of the housing.
Claims8
A downhole mud motor, comprising:
- plural housings, each housing containing one of a drive section having a stator, a bearing section having a piston housing, a bent sub, and a transmission section incorporating a drive shaft;
- at least a housing of the plural housings having a longitudinal axis and incorporating one or more rotary reamers;
- and
- each of the one or more rotary reamers being mounted in a respective pocket for rotation about a transverse axis relative to the longitudinal axis of the at least a housing;
- in which:
- in the case of one or more rotary reamers being located in the drive section, the one or more rotary reamers are incorporated in the stator,
- in the case of one or more rotary reamers being located in the bearing section, the one or more rotary reamers are incorporated in the piston housing,
- in the case of one or more rotary reamers being located in the bent sub, the one or more rotary reamers are incorporated in the bent sub, and
- in the case of the one or more rotary reamers being located in the transmission section, the one or more rotary reamers are incorporated adjacent the drive shaft.
6 more elements
Dependencies are inferred from the claim text.