Capabilities such as measurement-while-drilling (MWD) and logging-while-drilling (LWD) have long proven their worth in measuring and transmitting critical surveying and formation evaluation data to the surface in real time. By transmitting measurements at regular intervals while drilling, MWD and LWD provide valuable information on well positioning, tool orientation, lithology indicators, reservoir content, geomechanics and drilling optimization to increase rate of penetration, enhance wellbore stability and optimize well placement.

Land operators typically choose between two methods of data transmission—mud pulse (MP) or electromagnetic (EM) telemetry—depending on the area, target formation and well conditions. As both EM and MP telemetry modes offer unique benefits, selecting a transmission option can be challenging, especially when by selecting one telemetry mode, the advantages of the alternative mode are lost.

In article in E&P magazine “Maximizing the Potential of MWD and LWD” describes how Schlumberger engineers developed a service to overcome these challenges and provide greater flexibility to operators. The service streamlines surveying procedures, improves data transmission and helps place the wellbore within the reservoir with greater accuracy without compromising rate of penetration. The service is designed to maximize on-bottom drilling times so operators can deliver wells faster and more efficiently. Read the full article here.