Weatherford has provided inner-string cementing equipment to the industry for over 30 years. Our system provides the necessary tools to accomplish cementing using any one of several methods. Weatherford’s inner-string equipment is designed with the float shoe or collar having a tapered concrete top. The taper guides the drill pipe adapter into the shoe or collar receiver. Two systems are available from Weatherford for use in inner-string cementing. The stab-in and screw-in systems can be provided in virtually any size casing in which drill pipe can be run. With stab-in, no rotation is required to engage or disengage the tool from the inner-string adapter. The operator simply lowers the drill pipe with the stinger on the end into the receptacle and slacks off approximately 20,000 lbs (or whatever amount is necessary to offset pump off forces) to maintain a fluid tight connection. For inner-string cementing through a shoe, a double valve assembly is preferred. The screw-in system allows the inner-string adapter to connect the float equipment to the casing while reciprocating. This style is commonly used when running scab-liners. The screw-in stinger is engaged with left hand rotation and released with right hand rotation. Inner-string cementing is designed to save the operator rig time and cement costs, while improving cementing hydraulics. Weatherford can provide service with a trained technician and a full complement of handling tools such as the drill pipe spider, base plate, and pack-off head, all packaged in a compact offshore transportation box.