Thread – FW: [Ext] Investigation Brief Attached

Written by Claude Haiku 4.5 from the extracted text on 10 Jul 2026. It can miss or misread redacted and scanned pages. Check the source before relying on it.

NOPSEMA initiated investigation IVT10524 into Schlumberger's seismic survey operations, requesting comprehensive documentation from the company regarding marine mammal monitoring and acoustic impacts. The investigation focused on two vessels—MV Nordic Explorer (seismic) and MV No Limitation (support)—and required Schlumberger to provide the full Seiche Environmental Marine Mammal Monitoring Report, bridge logs, detailed marine mammal observer sighting records with coordinates and behavioral observations, passive acoustic monitoring (PAM) operator logs and validation records, and complete seismic acquisition logs showing vessel positions and sound source levels. The documentation also included requests for blue whale disturbance buffer zones and biologically important areas. The correspondence between NOPSEMA and Schlumberger's sales manager (June 2021) shows NOPSEMA coordinating document collection following an initial investigation brief discussion, with Schlumberger committed to providing a comprehensive list of available documents by specified deadlines.