دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: See cable tool drilling.

n: A method of drilling a well by allowing a weighted bit (or chisel) at the bottom of a cable to fall against the formation being penetrated. The cuttings are then bailed from the bottom of the well bore with a bailer.

n: a method of knowing the working condition of the bit in the bottle by tactile impression ,with feeling the rope in cable tool drilling and feeling the kelly bar in rotary drilling

n: 1. cable-tool drilling. 2. rotary drilling in which a special tool called a hammer drill is used in combination with a roller cone bit.

n: 1 see cable tool drilling. 2. during the rotating drilling, connected special high frequent hammer assembly with the cone bit, the breaking rock caused by rotated and shocked jointly.