Other

Well Engineering Partners B.v.

Got German Oil Tools Gmbh

Konrad Johannes Bührmann

Thomas Walburgis Bakker

Gerardus Godefridus Johannes Van Og

Christian Schulte

A device for anchoring in a casing in a borehole in the ground. The device comprises a shaft oriented in an axial direction, the shaft having a torque transfer section. The torque transfer section has axially oriented outer cam surfaces extending radially outwardly in a rotational sense. The shaft further has a plurality of clamping bodies circumferentially distributed around the torque transfer section with a limited movability relative to the torque transfer section in rotational sense and in radial directions. The clamping bodies each have an inner, axially oriented clamping body surface facing one of the cam surfaces of the torque transfer section and an outer surface defining a segment of a cylinder coaxial with said shaft.

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Vechta, Germany

Konrad Johannes Bührmann