West Drilling Products As

Tios As

Excess Engineering As

Ove Kalvatn

Odd B Skjaerseth

Helge Krohn

Mads Grinrød

Jarle Veshovde

Bernt Gramstad

Trond Eivind Larsen

Kjartan Ertenstein

Vidar Haugen

Mads Grinrod

Anders Olsen

Jan Ellingsen

Adam Mokrzycki

A method is for performing work in a well and on a vessel. A wellbore assembly such as a tool string is suspended on a first flexible elongate member from the vessel. The wellbore assembly is used to perform work in the well. The wellbore assembly such as a tool string is suspended on a second flexible elongate member from the vessel. The wellbore assembly on the first flexible elongate member is removed from the well, and after the removal, the wellbore assembly on the second flexible elongate member is inserted into the well. The inserted wellbore assembly in the well can then be used to perform further work. The wellbore assemblies may be deployed and retrieved on independently operable wirelines. A related vessel and apparatus is also described.

Well operations using flexible elongate members

A rotary table device is provided with means arranged for suspension of a pipe string. The rotary table comprises a rotary ring arranged rotatably about the central axis of the rotary table. The rotary ring is formed by two or more ring sections, each connected to a system comprising a bearing housing section rotatable relative to a base section, a bearing housing groove being formed in a base contact surface on the bearing housing section and a corresponding base groove being formed in an opposing bearing housing surface in the base section. The grooves form a curve-shaped track for a roller body and the groove has a curvature center coinciding with the central axis of the rotary table. The rolling diameter of the roller body exceeds the collective depth of said grooves, and a channel connecting the end portions of the bearing housing groove is formed in the bearing housing section.

Rotary table device for a pipe string

A device is for vertical tool guiding for a drill floor. On the drill floor is arranged at least one rig. Each rig is arranged on a rig foundation supported on the drill floor rotatably about a first, vertical axis (A) and arranged to be able to displace a tool in a horizontal working sector (S, S, S) that in a vertical projection at least touches or cuts through the central axis (C) in a through drill floor opening. Each rig is provided with a vertical guide track.

Tool guide device for a drill floor

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Stavanger, Norway

Ove Kalvatn