Schlumberger Technology Corporation

Patrick Virene

Juraj Irsa

Josiah Dale Shearon

An indexing mechanism includes a piston. An indexing sleeve encases a portion of the piston. The indexing mechanism is longitudinally fixed to the piston, and is rotatable relative to the piston. The indexing sleeve includes an indexing track. An indexing ring surrounds less than an entirety of the indexing sleeve. The indexing ring is rotatable relative to the piston. The indexing ring includes an indexing pin that extends into the indexing track.

Indexing mechanisms

An expandable tool includes a cutting block set. The cutting block set includes an upper cutting block and a lower cutting block, arranged longitudinally. The upper cutting block includes upper block splines having an upper block angle. The lower cutting block includes lower block splines having a lower block angle. The upper block angle is greater than the lower block angle, which directs the upper cutting block to extend radially further outward than the lower cutting block.

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Cypress, TX, United States of America

Patrick Virene