Then and Now: 4D Seismic Surveys Cut Costs, Increase Production / Latest / By mark 4D seismic surveys allow operators to monitor changes in reservoirs over extended periods for more informed well placement decisions. Companies including SLB and MicroSeismic Inc. are already seeing the benefits of the tech. Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on X (Opens in new window) X Related