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US 6,554,083 B1Granted
Adjustable bent housing sub for a mud motor
OwnerScott Kerstetterinventor
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OwnerScott Kerstetterinventor
Estimating the term…
An adjustable bent housing adapter for downhole mud motor directional drilling operations including a cylindrical housing having a first and a second end defining a central bore there through, the housing being divided into first and second body members, the body members being axially offsetable to one another, said first body member having a mandrel portion insertable along a portion of its length into the bore of the second body member with angularity between the first and second body members achieved by rotational displacement of a first outer indexing sleeve, having non-parallel ends, disposed annularly about the mandrel and a second inner eccentric sleeve also disposed annularly about the mandrel, the inner sleeve having a locking member for connecting to the outer sleeve and being axially movable relative to the mandrel in response to rotation of the outer sleeve, and a locking means provided for securing the outer sleeve to prevent rotation between the outer indexing sleeve and the first body member.
An adjustable bent housing comprising:
An adjustable bent housing adapter for a mud motor comprising:
A method for adjustably orientating a mud motor relative to a drill bit comprising:
Dependencies are inferred from the claim text.