Vetco Gray Scandinavia as

Vidar Strand

Knut Inge Dahlberg

Anders Berggren

Jarle Hvidsten

The present invention relates to methods and systems for establishing a well foundation as well as for drilling and installation of a surface casing without any use of a drilling rig.

Rigless drilling and wellhead installation

A bore selector for coupling a monobore riser to a dual bore subsea installation, the bore selector comprising a lower base part comprising a first and a second through bores connected to the respective bore of the dual bore subsea installation, an upper selector part comprising a through bore connected to a bore of the monobore riser, the upper selector part is movable relating to the lower base part to and fro between a first and a second positions, an actuator configured to move the upper selector part relating to the lower base part between the first and the second positions, and a connector sleeve slidably mounted in the through bore, wherein the connector sleeve is configured to selectively engage with the first and the second through bores, and is movable in the axial direction of the through bore to and fro between a raised and a lowered position.

Growing community of inventors

Rogaland, Norway

Vidar Strand