Dolphin applies record seismic spread offshore South Africa

Offshore staff

BERGEN, Norway – Dolphin Geophysical has used a seismic survey spread that it describes as the world’s largest floating object. The eight streamers were 8 km (5 mi) long and separated by 200 m (656 ft), giving a total area covered under tow of 11.2 sq km (4.3 sq mi).

The equipment was used offshore South Africa under contract with Shell and using the Polar Duchess seismic vessel.

The big spread was used to get 8,000 sq km (3,089 sq mi) surveyed during a limited weather window of four months.

“Despite the remote nature of the area and the challenging metocean conditions, the survey has been executed safely, efficiently and with a low down time,” said Stuart McGeoch, Shell regional ventures exploration manager for sub-Sahara Africa. “We have been impressed with the quality of acquisition data.”

Shell’s processing center in Houston validated the initial returns and is processing the data.

3/25/2013

Related Articles

Al Shaheen well campaign passes halfway mark

Aug 27, 2015

The current development of the Al Shaheen field offshore Qatar is progressing as planned, according to operator Maersk Oil, with the 50-well program more than half way complete.

Aminex receives more time to assess deepwater leads offshore Tanzania

Aug 26, 2015

Tanzania’s Ministry of Energy and Mines has agreed to defer Aminex’s obligation to drill two exploration wells in the offshore Nyuni Area.

Circle gains extension for prospective permit offshore Tunisia

Aug 25, 2015

Tunisia’s government has approved an application by Circle Oil to renew the exploration permit on its offshore Mahdia block by three years until Jan. 19, 2018.

Cobalt to sell offshore Angola blocks

Aug 24, 2015 Sonangol and Cobalt International Energy Inc. have signed a sale and purchase agreement for Sonangol to acquire all of Cobalt’s 40% participating interest in blocks 21/09 and 20/11 offshore Angola ...

Oriental takes the reins at Ebok offshore Nigeria

Aug 24, 2015

Oriental Energy Resources and Afren have concluded a transition plan for the shallow-water Ebok field offshore Nigeria.

Trending News

Offshore photo of the day

Ezra, Chiyoba ink subsea MOU

Aug 28, 2015

Under a binding memorandum of understanding with Ezra Holdings Ltd., Chiyoda Corp. will invest in Ezra’s subsea services business, EMAS AMC, to form EMAS CHIYODA Subsea, a 50/50 joint venture.

Seadrill defers deliveries of newbuild rigs

Aug 28, 2015

Seadrill has issued an update on its rig building program and market prospects for drilling.

Iona negotiating farm-out of Orlando in North Sea

Aug 28, 2015

Iona Energy expects cost for the Orlando tieback to the Ninian Central platform in the UK northern North Sea during 2015-2016 to be reduced from $215 million to $192 million. 

Ikon Science, PetroTrace Global extend JV scope

Aug 27, 2015

Building on its joint venture with PetroTrace Global, Ikon Science now has the availability to process seismic data workflows using a new high performance computing cluster in its UK office.

  Offshore
Digital Magazine
Look Inside
Cover
Current Issue
Click to view the Offshore Learning Center

Oil & Gas Jobs

Search More Job Listings >>