Offshore Sri Lanka Surveys

Newly acquired and reprocessed 2D data

Acquired in 2018, simultaneously with gravity and magnetic data, this 13,080-km-long offset seismic data is ideally suited for uncovering deep basement structures. The data was processed and imaged using modern broadband workflows, including state-of-the-art noise attenuation and demultiple techniques, adaptive deghosting, and tomography with Kirchhoff migration.

Analysis of the data clearly identifies an extrusive layer of flood volcanics at the reservoir level that includes proven gas reserves. The data was also used to understand prerift basement geometries linked to those seen in eastern Africa. Another use for the data has been initial AVO analysis to help understand potential plays in the Eastern Province.