Shell plans to acquire later this year a large amount of 3D seismic data off north-west Australia near its Crux gas and condensate field.

The Factory 3D survey will cover 3750 square kilometres across Blocks AC/P65, AC/P41, WA-534-P and a very small portion of adjacent acreage.

The survey will be done over a period of two to three months from 1 July to 30 December, Shell said.