TGS starts Midnight survey and reveals go to plans for Malvinas


On the same day last week that TGS announced the commencement of its Midnight 3D seismic survey to “further solidify its core position in the Inga/Fireweed area” of British Columbia, Canada, the seismic services provider revealed it would also conduct a new 3D multi-client project offshore Argentina.

The Norwegian company said the British Columbia survey merges into TGS’ existing onshore Canadian seismic data coverage in the condensate region of the Montney basin and straddles a large area where drilling activity is incentivized by deep-well royalty credit.

When completed and processed by TGS, the Midnight 3D project will result in 168km²of high-quality 3D seismic data. It increases the TGS’s contiguous Montney 3D seismic coverage to over 1,500km². A full suite of AVO-compliant reservoir characterization products, in addition to a suite of pre-stack depth-migrated deliverables, will be available in early 2020,” the company said.

The Midnight 3D survey is located in the heart of highly prospective, liquids-rich Montney acreage, with surrounding wells producing as much as 60-80 percent liquids and boasting some of the best, single-well economics in North America. TGS data library in this basin also includes interpretive geological products derived from our extensive library of well data.

Kristian Johansen, CEO at TGS, said: “The Midnight project is an excellent addition to our existing Montney 3D seismic database in Canada and further expands our comprehensive onshore library in the region. Our combined seismic, well log and interpretation data provide the industry with invaluable subsurface insight, and the additional 3D coverage will be instrumental to our customers’ exploration and development efforts in the area.”

In Argentina the Malvinas 3D survey would cover around 7,300km²of highly prospective Malvinas Basin, which stirred interest during Argentina Round 1 earlier this year.

The survey will employ one Shearwater vessel, with operations set to begin in the fourth quarter of 2019 and run until the second quarter of 2020.

TGS said initial products will be available in early 2021, with final products slated for the second half of 2021.

Kristian Johansen, CEO at TGS, said: “We are very pleased to announce this offshore Argentina project. The Malvinas MC3D survey clearly supports TGS’ growth initiative in the South Atlantic and will build on the great momentum seen by the previous Spectrum 2D campaign in helping to open up this frontier area for further exploration.”


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