Many oil and gas wells are drilled directionally, and techniques known as “logging while drilling” (LWD) and “measurementwhile- drilling” (MWD) allow important information about the drilling process to be continuously transmitted to the surface. MWD logs use mud pulse technology to send data from the tools on the bottom of the drill string to
topside processors. The LKS Seal prevents fluid, mud, sand, rock and H²S gas from entering
the mud pulser casing, and it also helps keep moisture from migrating into the tool’s sensitive electronics.