Acquisition and processing techniques to improve the seismic resolution of Tertiary targets

Abstract

The early phases of acquisition and processing in the North Sea produced relatively low resolution seismic sections aimed at penetration to the Jurassic reservoirs and less attention was paid to resolution of potential reservoirs in the shallow Tertiary sections. As the resolution of seismic sections improved due to new acquisition equipment and techniques and particularly due to advances in processing technology, some interesting shallow structures became just visible on seismic sections. More effort has been put into clarifying these elusive structures for the interpreter to delineate more confidently. Analysis techniques are available which can, under favourable conditions, indicate the presence of fluids from seismic data preferably calibrated by well information.