Application Status of the Technology of Logging While Drilling

The data of Logging While Drilling is used for Geosteering and evaluation of layers. Compared with traditional logging, LWD has its own advantages, real-time, security, and it could obtain original information of the destination formation.With the rapid development of logging tools design, LWD tools have a large improvement, and various tools used for measuring the parameters of layers have been designed and applied , resistivity imaginary logging tool, MPR, InSite ADR, Shock Wave have been invited and innovated. However, there are still a lot of unsolved problems existing, such as interpretation of logging, the accuracy of the evaluation on layers and so on. Therefore, numerous work need to be done in the future.