Tubing Head Functions

The Tubing Head is the top spool on a surface wellhead. It is typically installed over the last string of pipe suspended in the well, the production casing. These heads come in a wider range of types and sizes than any other head in a conventional wellhead system. The Tubing Head will provide for well fracturing and allow for the well to be completed using an almost innumerable variety of tubing hangers and tubing head adapters.

• Allows for suspending the production tubing in the wellbore
• Provides a seal bore for the Tubing Hanger
• Incorporates Lock Down Screws to retain the Tubing Hanger and energize its seals in the seal bore
• Supports the blowout preventers (i.e. “BOP’s”) while drilling
• Provides outlets for fluid returns
• Provides a means to test the blowout preventers while drilling
• Has flanges on both the top and bottom of the assembly
• Has a seal area in the bottom flange for a secondary seal between the casing annulus and the flanged connection
• Utilize a test port in the bottom flange that allows for the secondary seal and the flanged connection to be pressure tested