دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: One of the mud pulse telemetry systems used in MWD.

seismic energy that has traveled partly as a P-wave and then as an S-wave;having been converted on reflection at an interface.

secondary wave, shear wave, transverse wave. A seismic body wave that involves particle motion from side to side, perpendicular to the direction of wave propagation. S-waves are slower than P-waves and cannot travel through liquid.

n: distortional, equivolumnar, secondary, or transverse wave.

S wave.

n: I. the ability of a ship or mobile offshore drilling rig to return to an upright position when it has rolled to either side because of an external force (such as waves). 2. the ability of a measuring instrument to maintain its accuracy over a long period.

an S wave.