Sean Hogue has pursued a career at sea ever since sailing the world onboard the tall ship Concordia, back in 1996. Drawn to Dynamic Positioning while still a cadet, he has been working with it in the offshore industry since 2001. He holds a Master Mariners unlimited license. Sean writes from

Monday, January 30, 2012

DP Failure Mode Effect Analysis – Breaking Down the FMEA

Learning from each failure can be costly & time consuming. FMEA is a systematic method of studying failure. This ensures that time is not wasted & the root of the problem is quickly determined. It is used to Identify methods to eliminate or reduce the chance of that failure occuring in the future.

January 30, 2012
Total Views: 1758

Saturday, April 9, 2011

Offshore Wind Farms and the Turbine Installation Vessel

Offshore wind farming has picked up steam during the last decade, with more & more countries installing these gigantic turbines in their coastal waters.  The largest wind farm in the...

April 9, 2011
Total Views: 201

Monday, November 29, 2010

Getting Your Dynamic Positioning (DP) License

Here you are, fresh out of the academy with your watch keeping ticket, & you are looking to get the additional DP endorsement. Or perhaps you have been at sea for 20 years & feel its time to try something new. Or maybe you can just see which way the wind is blowing.

November 29, 2010
Total Views: 820

Friday, October 29, 2010

Green Dynamic Positioning Technology

As positioning capabilities have been improved to the point where a vessel can now sit on a (virtual) dime, the focus now shifts towards refinement. Making vessels more efficient is not only the right thing to do for the environment, it also makes good business sense. As legislation continually moves towards stricter emission controls, companies that are taking the initiative now will remain ahead of the curve, staying competitive in the process.

October 29, 2010
Total Views: 112

Wednesday, October 6, 2010

Dynamic Positioning 101- Heading alteration and speed

This week we are going to look at a particular DP function, when using the Kongsberg system. Although it is a fairly simple point it is one that can still cause some confusion, even for some experienced operators. That function is changing the ships heading while the center of rotation (COR) is is offset from the vessels center of gravity (CG).

October 6, 2010
Total Views: 147

Thursday, September 23, 2010

Joining a New Vessel as DPO

Joining a new vessel can be a very exciting time. There are new people to meet, tasks to complete & food to eat! You may already have experience with the type of work that vessel performs, or it may be completely new to you. Either way, it is up to you to become familiar with the ship and the onboard culture as quickly as possible.

September 23, 2010
Total Views: 122

Wednesday, September 8, 2010

Hierarchy of the Dive Team

Commercial Diving is a major component of life in the offshore industry, with divers performing much of the subsea work.  To better understand how the dive team accomplishes what they...

September 8, 2010
Total Views: 140

What Jobs are Done with Dynamic Positioning? – Pt. 5

Heavy Lift This serious operation has a large potential for disaster should something go wrong. Setting large suction piles or even an entire accomodation unit on top of a platfrom is a precision job that requires precise technology.

September 8, 2010
Total Views: 61

Sunday, September 5, 2010

What Jobs Are Done With Dynamic Positioning? – Pt. 4

Part 4 in our series continues on with a look at Dynamic Positioning and how it is used on more conventional, deep sea vessels. Make sure to look at Part...

September 5, 2010
Total Views: 80

Friday, August 27, 2010

What Jobs Are Done With Dynamic Positioning? – Pt. 3

Moving on with our series; What Jobs Are Done With DP? Make sure to read Part 1 & Part 2 as well!  All comments are welcome. Pipe Lay Laying Pipe...

August 27, 2010
Total Views: 39

Thursday, August 26, 2010

What Jobs Are Done With Dynamic Positioning? – Pt.2

Part 2 in our series about the jobs that are done with Dynamic Positioning Vessels.  You can view the first part of the series HERE. ROV Boats Another important task...

August 26, 2010
Total Views: 41

Wednesday, August 25, 2010

What Jobs are Done with Dynamic Positioning?

What kind of work is done using Dynamic Positioning? What started out as a technology designed to position drillships in deep water has trickled down through the offshore industry & can now be found installed on all types of vessels. It is being used today in capacities never imagined back when it was first invented. In this series we will take a look at how the technology is being utilized & some examples of ships on which it is installed.

August 25, 2010
Total Views: 46

Wednesday, December 23, 2009

J. Ray Acquires 50% stake in NO102

The 427-foot NO102 should enable J. Ray to be an immediate player in the flexible pipe installation market. J. Ray expects to take delivery of the NO102 in the third quarter of 2010 following completion of the current vessel charter. The vessel has two cranes and a moon pool to support deepwater subsea construction work and has a fast transit speed. It is currently equipped with a 7,000-ton capacity cable, umbilical and flexible pipe carousel with horizontal lay system. J. Ray plans to further upgrade the vessel's capability by installing a high-capacity flexible-lay system for ultra deepwater installation work. The upgrade will include installation of a new 250-ton crane.

December 23, 2009
Total Views: 0


US Navy Oceanographic Survey Ship

ST Engineering announced today that its US shipyard, VT Halter Marine, has been awarded a contract worth US$87m  to build an enhanced version of a T-AGS 60 Class oceanographic survey...

December 23, 2009
Total Views: 16

Thursday, December 17, 2009

Acergy’s New Pipe Lay Vessel – Borealis

This new asset, currently being built at the Sembawang Shipyard in Singapore, is a Class 3 dynamic positioning vessel equipped with a 5,000T crane. Acergy plans to install a 1,000T J-Lay tower and state-of-the-art 600T S-Lay equipment. It will also be fitted with a range of support systems and construction equipment for worldwide deepwater and harsh environment operations.

December 17, 2009
Total Views: 1

2 New PSV’s for Siem Offshore

STX Europe has been awarded contracts with Siem Offshore for design and building of two Platform Supply Vessels. The vessels are designed by STX Europe in Ã…lesund and will be built at STX Europe in Brazil. The vessels are scheduled for delivery in Q2 2012 and Q2 2013. The total value of the contracts amounts to approximately NOK 900 million.

December 17, 2009
Total Views: 6

Thursday, December 10, 2009

Rolls-Royce Thrusters for Ultra-Deepwater Ships

Since the upsurge in ordering of drillships, Rolls Royce has been successful in capturing nearly 90 per cent of contracts for thrusters for these high-specification vessels, which will use dynamic positioning to keep position while drilling in ultra deep waters.

December 10, 2009
Total Views: 119

Stenas’s DrillMAX Ice

Stena Drilling's decision to go into the Arctic was heavily influenced by the fact that oil prices were climbing higher and that new discoveries need to be made. Although the oil prices have since dropped, Stena Drilling is still confidently pursuing its multi-billion dollar Arctic strategy.

December 10, 2009
Total Views: 44

Thursday, December 3, 2009

November DP Roundup

Lets take a look at the dynamic positioning related news that made headlines last month! StatoilHydro ASA is changing its name to Statoil ASA  and simultaneously adopting its new visual...

December 3, 2009
Total Views: 6

Wednesday, December 2, 2009

Caesar Pipelay Vessel Joins Helix ESG Fleet

Helix Energy Solutions Group, Inc. new deepwater pipelay vessel, Caesar, departed the shipyard in China on November 28, and is transiting to the Gulf of Mexico where she will join the company's subsea construction fleet.

December 2, 2009
Total Views: 78