IMAGING OVERTURNED FOLD LIMBS USING THE EXPERIMENTAL 2D SEISMIC LINE LOFF8

LOFF8 is part of a unique experimental seismic program that was shot across the Laramide Structures of the Western Canadian Fold and Thrust Belt expressly to evaluate long offset, high intensity acquisition parameters. It is 52 kilometres long and runs NE to SW across the un deformed sediments of the Western Canadian Sedimentary Basin, the triangle zone, the fold and thrust belt up to the front ranges of the Rocky Mountains themselves.

The interpretation presented is integrated with numerous wells with samples, wireline logs and dipmeter data. It is currently in an active area for conventional and unconventional exploration and crosses numerous oil and gas pools.

In this interpretation we will show an example of a steep and overturned fold limbs imaged in the seismic section. The results of the interpretation clearly validates the use of the acquisition parameters and shows a way forward for imaging steep limbs in fold and thrust belts around the world.