Remarkable enhancement was observed in pre-stack time migration results
by using iDEPTHing velocities and curved-ray Kirchhoff pre-stack time
migration. Starting with DMO velocity picks, Vrms were conditioned by
editing, trend fitting for vertical and areal gradients and calibration with
check-shot data. New PSTM sections below show enhanced imaging and
excellent marker ties. PSTM results were converted to depth with iDEPTHing
average velocities. Summit Energy drilled a remarkable well in a new oil
compartment in onshore south Louisiana, finding significant thickness of
pay sands.

1999 (old) PSTM (upper) and new PSTM (lower)	Excellent well marker ties	New well location

Synthetic Tie Along the Well Path
The result of pre-stack time migration shows excellent ties with
synthetics generated from well reflectivity (see the following Figure).
It demonstrated that excellent calibration was achieved by iDEPTHing
which will impact significantly on seismic attribute analysis and
seismic trace inversion.