Workover and Control Systems (WOCS)
Installation/Workover Control Systems
 Weatherford provides a comprehensive range of Workover and Control Systems (WOCS) to meet the requirements of Conventional Dual Bore and horizontal completions in all water depths. All of our systems are available for rental on either a daily or per well rate basis.
This flexible approach allows Weatherford to provide cost-effective solutions from single well interventions or completions to large deepwater, multi-well developments anywhere around the world.
Weatherford offers service support and maintenance capabilities globally from our well established manufacturing and support bases located in Europe, Middle East, and the Far East.
Workover Control Systems for Conventional Dual Bore Completions
WOCS for conventional dual bore completions provide direct hydraulic control of tree functions and a failsafe pilot control system for the lower marine riser package (LMRP). Direct hydraulic control is provided for tubing hanger running tool (THRT) functions. Options are available to provide simple hydraulic interlocking of LMRP and tree functions to ensure correct sequencing of the valves in the vertical flow path and prevent inadvertent closure of tree valves on coiled tubing or wire line.
Major system elements typically include:
- Hydraulic power unit and workover control panel
- Workover reel and umbilical
- Tubing hanger reel and umbilical
- Umbilical sheaves
- Jumper umbilicals
- Fluid sampling kit
- Hose swage machine
Workover Control Systems for Horizontal Completions
WOCS for horizontal completions provide direct hydraulic control of the tree running tool (TRT) and tree functions. An emergency disconnect unit installed on the lower marine riser package (LMRP) and blow out preventer (BOP) enables disconnection of the workover umbilical at the LMRP/BOP interface.
Options are available to operate and monitor tree functions via the TRT during installation, and test/monitor the DHPT following installation of the tubing hanger.
Major system elements typically include:
- Hydraulic power unit and workover control panel
- Workover reel and umbilical
- Tubing hanger reel and umbilical
- Emergency disconnect unit
- ROV/diver flying lead jumpers from BOP to tree
- Umbilical sheaves
- Jumper umbilicals
- Fluid sampling kit
- Hose swage machine
Experienced Workover Control System Technicians
Weatherford have in excess of 20 experienced Multi Discipline Service Technicians to support the operation & maintenance of Weatherford and customer owned workover control systems. Our technicians are available at short notice and fully equipped to travel to any worldwide location.
Points of contact for Weatherford to get further details on equipment and services as follows:
Andy Moir
Business Product Line Manager for Workover Control Systems
Direct Tel: +65 6543 2133
Fax: +65 6542 9670
e-mail:
George Thomson
Operations Manager
Direct Tel: + 44 (0)1224 775366
Fax: + 44 (0)1224 775399
e-mail:
Nick Robertson
Business Development Manager
Direct Tel: + 44 (0)1224 331335
Fax: + 44 (0)1224 775399
e-mail:
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