Profile: Westerngeco supplies seismic data acquisition services. Our services include land and transition-zone acquisition, marine acquisition & data processing & reservoir seismic services. Our proprietary Q-Land integrated acquisition and data processing technology renders a full range of imaging services, from cost-effective exploration through to the highest possible quality reservoir characterization & 4D production monitoring studies. Our 4D, seismic method determines the changes occurring in the reservoir of hydrocarbon production or injection of water or gas into the reservoir by comparing the repeated datasets. We offer a complete range of conventional marine seismic services, covering 2D & 3D surveys over shelf and deepwater areas, seabed multicomponent surveys & time-lapse 4D surveys.