Downhole reamer asymmetric cutting structures
AssigneeSmith International, Inc.
InventorsNavish Makkar, Tommy G. Ray, Manoj Mahajan, Dwayne P. Terracina, Sameer Bhoite
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Abstract
A cutting structure for use with a reamer in enlarging a borehole in a subterranean formation includes a plurality of cutter blocks, radially extendable from a reamer body away from a central axis of the reamer body, each of the plurality of cutter blocks comprising at least one cutter blade thereon, wherein an angular spacing about the central axis of the reamer body between the at least one cutter blade on each of the plurality of cutter blocks is unequal.
Claims23
A cutting structure for use with a reamer in enlarging a borehole in a subterranean formation, the cutting structure comprising:
- a plurality of cutter blocks, radially extendable from a reamer body away from a central axis of the reamer body, each of the plurality of cutter blocks comprising at least one cutter blade thereon;
- wherein an angular spacing about the central axis of the reamer body between the at least one cutter blade on each of the plurality of cutter blocks is unequal.
A cutting structure for use with a reamer in enlarging a borehole in a subterranean formation, the cutting structure comprising:
- at least one set of diametrically opposed cutter blocks, radially extendable from a reamer body away from a central axis of the reamer body, each of the cutter blocks comprising at least one cutter blade thereon;
- and
- a plurality of cutting elements disposed on the at least one cutter blade.
Dependencies are inferred from the claim text.