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Wellhead Equipment

Wellhead Equipment

Wellhead&Well Control Equipment

casing head, tubing head, casing hanger, tube hanger

Product Introduction
The wellhead is the component at the surface of an oil or gas well that provides the structural and pressure-containing interface for the drilling and production equipment. The primary purpose of a wellhead is to provide the suspension point and pressure seals for the casing strings that run from the bottom of the hole sections to the surface pressure control equipment. The primary components of a wellhead system are: casing head, casing spool, casing hanger, tubing head, tubing spool, tubing hanger, bottom connection of casing head, secondary seal, etc.

1. C-22/C-29 Casing Head & Casing Spool

Introduction

The Casing Head is the lowermost head in a wellhead system. It is connected to the surface casing by one of several possible methods. The Casing Spool is a component that provides a means to support and seal an intermediate casing string. C-22 and C-29 casing head and casing spool have 450 bearing shoulder. The depth of C-29 bearing shoulder is longer than C-22, it is suitable for deep well after assembled with C-29 casing hanger. Could use studded flange or threaded connection in side outlets. Studded flange outlet use VR thread accordingly. Secondary sealing offers various structural scheme, could been choose freely according to pressure and working condition. Pressure test, grease injection and decompression connector are complete unified, easy for maintenance and test.


Parameters


Top FlangeBottom pack off Casing Size(in)Side Outlet
Nominal Bore or Size (in)Rated Pressure (psi)
Threaded Connection (in)Flange Connection (in)
1130009-5/82LP2-1/16
1150009-5/82LP2-1/16
13-5/8300013-3/82LP2-1/16
13-5/8500013-3/82LP2-1/16
13-5/81000013-3/82LP2-1/16
16-3/43000162LP2-1/16
20-3/43000202LP2-1/16
21-1/42000202LP2-1/16

2. Tubing head and tubing spool

Introduction

Tubing head is usually a spool with two flange that can support the tubing string on an oil well, seal off the pressure between the casing and tubing annulus, and connect with tubing adapter on the top.

● TS tubing spool is a standard spool used in single completion well, in flange size with 7-1/16”,9″,11″and 13-5/8″

● The diameter of tubing spool likes a 45°ledge, to bear loading of pipeline. Its cyclic symmetry is to avoid the damage of diameter caused by pipe rolling. Loading to the ledge equably, ensured a high hanging ability

● Compatibility of tubing hanger: C TS type tubing spool could use with kinds of tubing hanger for single completion well

● Side outlets: could be threaded connection or bolted connection. Side outlets of bolted connection need tapping to install valve plug

● Jackscrew: one important feature of jackscrew is the seal parts in head screw thread. It can prevent the damage caused by liquid corrosion as well as avoid accumulation of solid particle in end screw thread

● Secondary seal: With double P or single P,TS type tubing spool could use the T type seal bottom casing pipe, or metal seal

● Test point and injection point: All test point and injection point are using metal seal. Check valve installed in injection point


Parameters


Top FlangeBottom Flange# Lockscrews
Nominal Size, inRated Pressure, psiNominal Size, inPressure, psi
7-1/1620001120004
7-1/1630001120004
7-1/1630001130004
7-1/1650001130008
7-1/1650001150008
7-1/16100001150008
7-1/161000011100008
7-1/1615000111000016
11200013-5/820008
11300013-5/820008
11300013-5/830008
11500013-5/8300012
11500013-5/8500012
111000013-5/8500016
111000013-5/81000016
111500013-5/81000020
13-5/8200016-3/4200010
13-5/8300016-3/4200014
13-5/8300016-3/4300014
13-5/8500016-3/4300016
13-5/8500016-3/4500016
13-5/81000016-3/4500020
13-5/8200021-1/4200010
13-5/8300021-1/4200014
13-5/8300020-3/4300014
13-5/8500020-3/4300016
13-5/8500021-1/4500016
13-5/81000021-1/4500020



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