post4dby Add Komoncharoensiri, Director of Technical Services at 4D Inc. Here we go with another set of tips and tricks. The 4D Knowledge Base is a library of information about 4D technology where weekly tech tips and monthlySummary More than 20 million tons of CO2 has been injected into the Utsira formation at Sleipner field since 1996. The injected CO2 in the subsurface is characterized on the post-stack seismic