Overview

A Tubing Head , also known as Tubing Head Spool or Tubing Spool, is an important mechanical fitting used on the wellhead assembly. It is usually located in the lower section of the wellhead above the casing hanger and casing spool. Tubing head features a profiled inner surface designed to accept the tubing hanger which supports and seals the tubing conduit. The upper section of the wellhead assembly is called the Christmas tree, and is attached to the top of the tubing head by means of a specially-designed head adapter. Usually, a tubing head is provided with several ports for the inclusion of gate valves and other instruments.

A wellhead is the surface termination arrangement of a subterranean crude oil well. This assembly typically consists of two multi-part sections, namely the tubing head and casing hanger section, and the Christmas tree. The hanger section is designed to support the casing and tubing strings, to terminate the wellbore during the construction phase, and to support the Christmas tree during production. The Christmas tree is a complex arrangement of valves, spools, and instruments so named because of its characteristic cluttered, crucifix shape. Its function is to control and monitor the well and its output during the production phase.

Simply put, tubing head is a wellhead component that supports the tubing hanger and provides a means of attaching the Christmas tree to the wellhead. Tubing Head Spools provided by Qihang are strictly produced in accordance with API 6A standards and can be used for both single completions and model of dual completions. 

Detailed Specifications:

Product Name: Tubing Head, Tubing Spool, Tubing Head Assembly

Bore Size: 7-1/16", 9", 11", 13-5/8"

Standards: API Spec 6A, NACE MR0175, ISO 9001, ISO14001, CE etc

Working Pressure: 2000 PSI to 15000 PSI

Outlets: API 6B or API 6BX Flanged Top & Bottom

Material Class: AA, BB, CC DD, EE, FF

Temp Class: L, P, R, S, T, U, V

Performance Requirement: PR1, PR2

Product Specification Level: PSL1, PSL2, PSL3, PSL4

Application: Wellhead Christmas Tree

Traceability: Qihang's Tubing Head Assemblies (Tubing Spool Assemblies) are supplied with full traceability documentation for each component.

Paint Color: Red, Blue, Gray, Green or Customized

Origin: Yancheng, China

Tubing Head Spool functions:

• Attaches above the Casing Head or Spool and seals off the production casing

• Supports the blowout preventer while the well is being completed

• Allows for testing of the blowout preventer while drilling

• Housing for tubing hanger and seal assembly and suspends the production tubing string

• Integral lock screws hold down tubing hanger

• Side outlets for annular access

Tubing Head Models:

• TC (single completions only)

• TC-60 (three alignment pins for either single or dual completions)

Side Outlets:

• Line Pipe Outlets

• Studded Side Outlets

Secondary Bottom Seal Prep Types:

• PE (Standard, use with PE secondary seal bushing)

• HPE (for high pressure applications, use with HPE secondary seal)

Tubing Head / Tubing Spool Specifications

Image gallery of Tubing Heads-Tubing Spools and Wellhead Assemblies produced by Qihang

All of Qihang's raw materials and products are subject to strict and comprehensive quality check and testing.

Qihang produces Top Quality API 6A Tubing Head Spools at Competitive Prices.

Contact us Today for your specific needs.