دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: The technological process that increase the deviation angle with building assembly and angle build-up treating.

n: The combination of drill tool that decreases the deviation angle in directional drilling.

n: The combination of drill tool that holds the deviation angle in directional drilling.

the deviation angle (from vertical) at which a solid material will no longer fall down the pipe, but will begin to accumulate on the pipe wall. The angle of repose for dry, round sand is about 62o and for wet sand about 50o to 60o depending on size, shape

n: The method assuming that borehole axis of two adjoining measured points is a polygonal line. The length of one part of polygonal line is equal to another part. The deviation angle and azimuth of upper part is same with upper measured point and the deviati

n: Usually refers to the operation that ogging device measures deviation angle and azimuth. There are two types: single-shot survey and multimetering.

n: Borehole axis deflect vertical line. Deviation angle and azimuth can be measured by inclinometer.

n: The inferior drill column bend since bit load produced by self-weight reach to definite value when drill column is in the wellbore. It is decided by bit load and deviation angle.

the part of the wellbore that is changing deviation, usually building toward a maximum deviation angle.

n: The well whose hole axis presents bent shape. The deviation angle and azimuth change violently.