دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: A calcium-based water mud system containing gypsum. Gyp mud can be used for drilling shales, but it is also well-suited for drilling gypsum, anhydrite and salt stringers. An advantage of gyp over lime muds is that the pH of gyp mud need not be so high bec

n: the second pass made on a weld. The hot pass follows the root, or stringer, bead and precedes the filler pass and cap.

n: the initial welding pass made in uniting two joints of pipeline. Also called stringer bead.

n: 1. an extra support placed under the middle of racked pipe to keep the pipe from sagging. 2. a relatively narrow splinter of a rock formation that is stratigraphically disjointed. interrupts the consistency of another formation. and makes drilling that formation less predictable. A shale formation. for example. may be broken by a stringer of sandstone.

n: see root bead.