The Double Plug Cementing Head (called as cement-head) is a common cementing tool used as wellhead unit in all kinds of cementing operation. Comparing to cement-head with single plug, it owns longer cement-head body, and upper rubber plug and lower rubber plug can be put in at same time. The tool owns some advantages such as simple construction, easy operation, high pressure resistant, manifold...

The choice between the types of casing and casing sizes to be run and cemented is dictated by the well design and therefore outside the scope of this article. However, to improve the chances of achieving successful primary cementation several items of auxiliary equipment are incorporated in the string as Cementing Tools . Float EquipmentThese cementing tools are usually placed two joints above...