Application of LWD to ERD well in Shallow Water Area.
Li Jian, Liu Cuandu, Sha Dong, et al ..
LWD(logging while drilling) is a new logging technology developed in recent years, its main charateristic is logging can be run while drilling. It is a good solution for ERD (extended reach drilling) well logging when it is hard to use wireline well logging. The application of LWD in ERD well is analyzed and compared with wireline (i.e. drill pipe convey) logging. The comparison indicates that LWD is a best choice in ERD wireline well logging. And LWD advantages as well as its application environments are described.