1. Principle and Structure

single plug cement head is a special tool for pumping slurry and releasing pumpdown plug. It can

couple with one plug, and make the drilling fluid fill into drill pipe in turn and quickly, simplify ce-

menting operation and prevent cement pollution.

The structure of the ZSC rotating drill pipe cement head as fellow:

The Bottom has a rotating joint, which is used to rotate casing. The pumpdown plug is installed in the body, and Spiral Pin Assembly is used to stop plug, the indicator shows whether plug pass through the rotating drill pipe cement head.

Open lift nipple on top of cement head, install pumpdown plug into cement body.

Connect cementing pipeline and slurry pipeline with union.

The connection thread of Top lift nipple and body.

2. Features

Ø It is manufactured utilizing API grade steels with connections for threads.

Ø Indicator indicates plug releasing.

Ø Reasonable Structure, main parts are made from AISI4135H alloy steel.

Ø The connection thread of Top lift nipple and body is large pitch thread, which is convenient for quick installation.