Schoeller-Bleckmann Oilfield Equipment Aktiengesellschaft (SBOEY) USPTO patents

Provided is an downhole actuation mechanism, the actuation mechanism comprising: a first part having a guiding surface; a second part defining a passageway; the second part being movable with respect to the guiding surface between a first position and a second position; the second part defining a first clearance of the passageway in the first position; the second part defining a second clearance of the passageway in the second position, the second clearance being larger than the first clearance.

A downhole catcher device comprises a catching mechanism which is configured to be transferable between a first mode and a second mode.