Hi-speed Subsea Drill Reaming System Success

Press Release
Monday, January 07, 2013
Statoil G-4 AHT2 rig floor: Photo credit Deep Casing Tools

Aberdeen-based Deep Casing Tools, completes  first operation of its 'Turbocaser' in the Norwegian North Sea, with a successful 21 hour reaming run.

The Turbocaser™ Express is a high-speed drillable reaming system that enables drilling teams to land casings and intermediate liners at target depth first time.

Two conventional attempts to run a 7” liner to total depth (TD) had been unsuccessful in the Statoil operated Gullfaks’ satellite well, resulting in the liner hanging up hundreds of metres from TD. 

The problem was caused by borehole instability and severe washout in the weak shales, coals and notorious paleosols of the area.  The Gullfaks’ team successfully drilled the sidetrack using Low Energy Drilling Operations (LEDO) principles and ran the liner, with Deep Casing Tools’ Turbocaser™ Express as a contingency against well bore obstructions.

The operator considered two benefits.  The Turbocaser™ Express would significantly increase the chance of getting the liner to TD, and if hole conditions proved too severe, the full-bore rapid drill through capability of the tool would still allow the remaining reservoir to be accessed.

The 7” liner was run and, as predicted, stood up with 10 tonnes at 4,117m, (1,260m from TD) where the liner could not be rotated or run deeper.   Circulation was established and the Turbocaser™ Express was used to clear the obstruction.  The next obstruction was at 4,378m where the tool was again used to ream, and this was repeated most of the way to TD.  Total reaming time with Turbocaser™ Express was 21 hours, at an average rate of 60m/hr.

Statoil’s Senior Engineer, Drilling Operations, Michael Mountford, said: “The Turbocaser™ Express functioned well and we believe it was a contributing factor to getting the liner down successfully. We are likely to use it again in the future”.

 

Maritime Reporter October 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Technology

World’s First LNG-Ready Ultra Large Container Ship Named

The race is on in global maritime circles to be the “world’s first” in every aspect of environmental friendliness, particularly in regards to the incorporation of LNG as fuel onboard commercial ships.

Wärtsilä Integrated Solutions for Maersk's AHTS Vessels

A new series of six Anchor Handling Tug Supply vessels to be built at the Kleven Verft AS in Norway for the Danish based Maersk Supply Service A/S - part of the A.

ClassNK Approves Niigata Dual-fuel Engine Design

Classification society ClassNK has granted approval to the design of the new 28AHX-DF dual-fuel engine developed by Niigata Power Systems Co., Ltd. The new engine

Offshore Energy

Wärtsilä Integrated Solutions for Maersk's AHTS Vessels

A new series of six Anchor Handling Tug Supply vessels to be built at the Kleven Verft AS in Norway for the Danish based Maersk Supply Service A/S - part of the A.

Drillsearch Discovers Gas at Varanus South-1

Drillsearch Energy Limited announced a new wet gas discovery on the Western Cooper Wet Gas Fairway of the Cooper Basin. The Varanus South-1 well in PEL 513 (Drillsearch

Fourth Rig Delivered to Perforadora Central

Keppel AmFELS LLC, a wholly owned US subsidiary of Keppel Offshore & Marine Ltd (Keppel O&M), has delivered the jackup rig, Coatzacoalcos, to Mexico’s Central Panuco S.

Underwater Engineering

Woodside to Pick up Moroccan Acreage

Woodside advises that it has entered into a contract for an exclusive Reconnaissance Licence (RL) with the Office National des Hydrocarbures et des Mines, the

Zargon Oil & Gas Sells Hamilton Lake Assets

Zargon Oil & Gas Ltd. announces that it has entered into a definitive purchase and sale agreement to sell its Hamilton Lake property for $25 million. Property

Strategy Can Maximize UKCS potential

Companies operating in the North Sea require a cultural shift to make the most of the its potential, according to a new report from Deloitte, the business advisory firm.

 
 
Maritime Careers / Shipboard Positions Maritime Security Naval Architecture Navigation Offshore Oil Ship Electronics Ship Simulators Shipbuilding / Vessel Construction Sonar Winch
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.2186 sec (5 req/sec)