دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: during drilling the soft layer,the drilling pipe with extracentral head is lowed into the bottom through the casing to drill a wellbore whose diameter is larger than the outer diameter of the casing

the theoretical radius of a wellbore that would flow the same rate as a wellbore with a fracture. Effective wellbore radius is a comparison of flow improvement related back to physical radius.

n: a fitting that allows two pipes to be joined at an angle of less than 180., usually 90. or 45.,

An “L” shaped fitting in surface piping.

n: the wellbore in which there are no drilling tools or fluid

end of build (horizontal wellbore).