Varco I/p, Inc.

Noble Drilling Services Inc.

Ivan Iankov

John E Goode

Ronald William Yater

Preston R Fox

Robert Van Kuilenburg

Hans H J Deul

Patrick O'Neill

David W Martin

Matthew Sibrel

Andrew Michel

An apparatus for actuating a ram in a well pressure control apparatus includes an actuator rod coupled to a ram. The actuator rod is movable within a housing to extend the ram into a through bore in the housing. A drive screw is rotationally coupled to the actuator rod. The drive screw is oriented transversely to the actuator rod. At least one motor is rotationally coupled to the drive screw.

Pressure assisted motor operated ram actuator for well pressure control device

The subsea intervention system (SIM) includes a BOP moduleand CT module. A tool positioning systemis used for positioning a selected subsea toolstored within a rackwith a tool axis in line with the BOP axis, while a marinized coiled string injectoris moved by positioning systemto an inactive position. Power to the subsea electric motorsis supplied by an electrical line umbilical extending from the surface for powering the pumps, with the hydraulic system controlled by power control unit. The injectorpreferably includes a pressure compensator roller bearingand a pressure compensated drive system case

Subsea intervention system, method and components thereof

A tubing injector () includes a traction device () having opposed grippers () laterally moveable so as to move a respective chain link member () of an endless loop chain into gripping engagement with the coiled tubing. A drive motor () is provided for powering the endless loop chain, and a plurality of roller bearings () each act between a respective chain link member and a gripper. A pressure compensating device () subjects fluid in a fluid passageway in the roller bearing () to a fluid pressure functionally related to subsea pressure. The tubing injector may be used for injecting the coiled tubing subsea into a wellhead or into another flowline.

Subsea coiled tubing injector with pressure compensated roller assembly

Growing community of inventors

Houston, TX, United States of America

Ivan Iankov