The problem of targeting bypassed oil and gas in mature fields is one that faces many independent producers today. There are two paths to follow in finding a solution. The other approach is to directly detect where the remaining oil or gas is within the reservoir.
Many producers employ both.
A number of new technologies either have been or are being developed to meet these challenges. Smaller, more compact nuclear logging tools now allow formation evaluation through both tubing and casing. A new resistivity log measures saturation data through casing. New techniques are being applied to image the interwell region beyond the wellbore. And improvements in downhole electronic components are making it possible to gather more data less expensively.