Searcher Seismic expands Papua New Guinea database

Map source: Searcher Seismic

Searcher Seismic, an independent seismic data acquisition company, has expanded its seismic, magnetic and geochemical database offshore Papua New Guinea following the Laurabada Ultracube 3D reprocessing project.

Searcher said on Friday that the Laurabada Ultracube project entailed the reprocessing of two open-file 3D datasets with a modern broadband de-ghosting and pre-stack depth migration sequence over what the company describes as “highly sought-after acreage.”

The Ultracube is split into two cubes, the Eastern cube is near-shore in shallow water while the Western cube is deep-water in the Gulf of Papua.

The Laurabada 3D reprocessing project complements Searcher’s existing 2D seismic coverage which currently stands at over 80,000 kilometers offshore Papua New Guinea.

Joshua Thorp, geoscience manager for Searcher Seismic, said: “Source and receiver deghosting was applied in the reprocessing which significantly improves the low-frequency content.

“For Laurabada East, this helps with the imaging below the fold belt as that is quite dispersive and attenuative with the seismic source. Similarly, on Laurabada West, there are multiple large carbonate bodies that are highly absorptive which are only penetrated by the low-frequency signal.

“The legacy processing only applied 2D SRME for the demultiple, whereas the reprocessing has used 3D GSMP/SRME from Western Geco. In the fold belt on Laurabada East this in particular helped with the complex diffracted multiples from the seabed that were contaminating the pre-Tertiary grabens. On Laurabada West there were complex pegleg multiples from the top carbonates which were modeled and subtracted effectively.

“In Laurabada East, the PSDM workflow allowed for high-resolution velocity modeling in the fold belt which improved the pre-Tertiary graben imaging and depthing. In Laurabada West, there was detailed carbonate velocity modeling which combined with the deghosting allowed for much-improved resolution on the flanks and base of the carbonate pinnacles.”

As for the two cubes, the Laurabada West Ultracube survey comprises of around 770 square kilometers while the Laurabada East Ultracube survey covers around 1,020 square kilometers.

Share this article

Follow Offshore Energy Today

Events>

<< Sep 2019 >>
MTWTFSS
26 27 28 29 30 31 1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30 1 2 3 4 5 6

Africa Oil & Power 2019

The Africa Oil & Power conference will bring together an elite class of ministers and senior-level government…

read more >

OWI LATAM 2019

Over the two-day conference, 25+ expert speakers will share exclusive insight on how to develop an integrity, production and P&A strategy…

read more >

Uganda International Oil and Gas Summit 2019

Uganda International Oil & Gas Summit will once again examine the industry’s developments…

read more >

Argentina Oil and Gas Expo 2019

The Argentine Oil and Gas Institute (IAPG) organizes the Argentina Oil & Gas Expo bringing together the most…

read more >

Jobs>

Looking to fill a job opening?

By advertising your job here, on the homepage of OffshoreEnergyToday.com, you'll reach countless professionals in the sector. For more information, click below...

apply

Looking to fill a job opening?

By advertising your job here, on the homepage of OffshoreEnergyToday.com, you'll reach countless professionals in the sector. For more information, click below...

apply