دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: The part of the drill string that is below the drill pipe. It usually consists of drill collars, stabilizers and various other components.

n: The centralizer that can connect with any round surface tool. Consisted by blade centralizer, collar clamp and arrester.

an explosive charge in a tool designed to sever very heavy BHA tools such as drill string collars and stabilizers. It latterly uses a focused explosive to blown the string apart. A tool of last resort.

n: The appliance installed in the dead end of drill cable and used to alleviate shock and wornout. Make the counting of weight indicator accurate.

n: all the tools that are connected to the casing and left in the well together the casing,such as the float collar, casing shoe,casing stabilizer and so on

n: a kind of tool with a smaller outer diameter than the well diamerter and an anular flowpath for fluid ,usually used to ser upright and steady the drill collar and the bit,

n: downhole drill stem composed by drill caollars and other tools such as stabilizer and absorber

n: all members in the assembly used for rotary drilling from the swivel to the bit, including the kelly, the drill pipe and tool joints, the drill collars, the stabilizers, and various specialty items. Compare drill string

n: All the components from the swivel down to the bit.

typically, rotating components in a drill string.

n: a kind of tools assembly in which a rolling cutter reamer

is joined among two or three drill collars and a stabilizer is joined on each end of the drill collar respectively

n: the stabilizer whose slices for setting upright are fixed in the steel trough using screws and bonds