4Tang X M,Dubinsky V. Development of A Low-frequency Quadrupole Shear-wave Technology to Improve Quality of LWD Shear Velocity Measurement [C]// SPE Annual Technical Conference and Exhibition, 2006.
5Market Jennifer. New Broad Frequency LWD Multipole Tool Provides High Quality Compressional and Shear Data in A Wide Variety of Formations [C]//SPWLA 48th Annual Logging Symposium,2007.
6Macune D T,Flanagan W D,Choi E,et al. A Compact Compensated Resistivity Tool for Logging While Drill ing [C]//SPE Annual Technical Conference and Exhibition, 2006.
7Prensky Stephen. Recent Advances in Well I.ogging and Formation Evaluation [J]. World Oil, 2008, 229 (3) :89-94.
8Gravem Trond. Second Generation of LWD Formation Pressure Testing Technology Improves Data Quality, Increases Sealing Efficiency and Shortens Test Time [C] //SPWLA 47th Annual Logging Symposium, 2006.
9Lofts Jeremy. The History, Contribution and Value Proposition of Logging While Drilling (LWD) [J]. Petrophysics, 2007,48(12) : 434-435.