CASING HEAD
NW22 Casing Head
NW-22 casing heads have a straight bore bowl design which avoids damage to sealing areas by drilling tools and prevents test plug and bowl protector wedging problems when pressure is applied. This straight bore design also reduces maintenance costs and allows suspension of heavy loads. NW-22 casing heads provide interchangeability of casing hangers NW-21 and NW-22. If a bowl protector were required during the drilling process, using a NW-22-BP casing head including lock down screws in the upper flange would be recommended. Bottom connections can be furnished threaded or slip-on for welding.
![]()
| flange size |
working pressure |
casing size |
outlets |
A |
B |
C |
D |
weight |
| in |
psi |
in |
|
in |
in |
in |
in |
lb |
| 11 |
3000 |
8-5/8 |
2-1/16" std |
19 |
11 |
8 |
10-7/8 |
748 |
| 11 |
3000 |
8-5/8 |
2" LP |
17-7/8 |
11 |
8 |
10-7/8 |
600 |
| 11 |
5000 |
8-5/8 |
2-1/16" std |
21 |
13-3/4 |
8 |
10-7/8 |
788 |
| 11 |
5000 |
8-5/8 |
2" LP |
17-7/8 |
11-3/4 |
8 |
10-7/8 |
740 |
| 11 |
3000 |
9-5/8 |
2-1/16" std |
19 |
11 |
9 |
10-7/8 |
726 |
| 11 |
3000 |
9-5/8 |
2" LP |
17-7/8 |
11-3/4 |
9 |
10-7/8 |
571 |
| 11 |
5000 |
9-5/8 |
2-1/16" std |
21 |
13-3/4 |
9 |
10-7/8 |
915 |
| 11 |
5000 |
9-5/8 |
2" LP |
20-1/2 |
11-3/4 |
9 |
10-7/8 |
760 |
| 11 |
3000 |
10-3/4 |
2" LP |
17-7/8 |
11-3/4 |
10 |
10-7/8 |
563 |
| 13-5/8 |
3000 |
11-3/4 |
2" LP |
18 |
11 |
11 |
13-1/2 |
638 |
| 13-5/8 |
3000 |
13-3/8 |
2" LP |
20-7/8 |
13 |
12-1/2 |
13-1/2 |
638 |
| 13-5/8 |
3000 |
13-3/8 |
2-1/16" std |
19 |
12 |
12-1/2 |
13-1/2 |
744 |
| 13-5/8 |
5000 |
13-3/8 |
2-1/16" std |
20-1/2 |
12-1/2 |
12-1/2 |
13-1/2 |
1250 |
| 13-5/8 |
5000 |
13-3/8 |
2" LP |
19 |
12 |
12-1/2 |
13-1/2 |
1078 |
| 13-5/8 |
3000 |
20 |
2" LP |
19 |
12 |
19-1/8 |
20-1/8 |
1540 |
| 13-5/8 |
2000 |
20 |
2" LP |
19 |
12 |
19-1/8 |
20-1/8 |
1232 |
NW22 Casing Head
NW-29 casing heads are based on the same reliable design as the NW-22 with exception that the bowl is longer,which permits the acceptance of the minium deflection NW-29 casing hanger with larger load capacity for deeper drilling.
| flange size |
working pressure |
casing size |
outlets |
A |
B |
C |
D |
weight |
| in |
psi |
in |
|
in |
in |
in |
in |
lb |
| 11 |
3000 |
8-5/8 |
2-1/16" std |
21 |
13 |
8 |
10-7/8 |
785 |
| 11 |
3000 |
8-5/8 |
2" LP |
20-1/2 |
13-5/8 |
8 |
10-7/8 |
644 |
| 11 |
5000 |
8-5/8 |
2-1/16" std |
21 |
14-1/4 |
8 |
10-7/8 |
799 |
| 11 |
5000 |
8-5/8 |
2" LP |
20-1/2 |
14-1/4 |
8 |
10-7/8 |
793 |
| 11 |
3000 |
9-5/8 |
2-1/16" std |
21-1/2 |
13 |
9 |
10-7/8 |
760 |
| 11 |
3000 |
9-5/8 |
2" LP |
20-1/2 |
13-5/8 |
9 |
10-7/8 |
623 |
| 11 |
5000 |
9-5/8 |
2-1/16" std |
21 |
14-1/4 |
9 |
10-7/8 |
926 |
| 11 |
5000 |
9-5/8 |
2" LP |
20-1/2 |
14-1/4 |
9 |
10-7/8 |
758 |
| 11 |
3000 |
10-3/4 |
2" LP |
19-1/4 |
13-1/8 |
10 |
10-7/8 |
575 |
| 13-5/8 |
3000 |
11-3/4 |
2" LP |
20-7/8 |
13 |
11 |
13-1/2 |
695 |
| 13-5/8 |
3000 |
13-3/8 |
2" LP |
20-7/8 |
13 |
12-9/16 |
13-1/2 |
641 |
| 13-5/8 |
3000 |
13-3/8 |
2-1/16" std |
21-1/2 |
14-1/2 |
12-1/2 |
13-1/2 |
794 |
| 13-5/8 |
5000 |
13-3/8 |
2-1/16" std |
22-1/2 |
14-1/2 |
12-1/2 |
13-1/2 |
1328 |
| 13-5/8 |
5000 |
13-3/8 |
2" LP |
20-7/8 |
13 |
12-1/2 |
13-1/2 |
1113 |
| 13-5/8 |
3000 |
20 |
2" LP |
20-1/2 |
12-1/2 |
19-1/8 |
20-1/8 |
1606 |
| 13-5/8 |
2000 |
20 |
2" LP |
20-1/2 |
12-1/2 |
19-3/16 |
20-1/8 |
1278 |
CASING HEANGER
NW-21 Caing Hanger
NW-21 is a slip type, wrap-around hanger for shallow wells with light casing loads(maximum working pressure is 5000psi).The NH packoff is designed to be installed afer slips are landed and casing has been suspended and cut off. The NH packoff serves as the primary seal and protects the slips from test pressure.The NH packoff can't be used in a casing head or casing spool with lock screws,the lock screws intersect OD seal of the packoff. The hanger is capable of supporting up to 50% of the pipe body yield at rating temperatures.
NW-22 Casing Hanger
The NW-22 casing hanger is a slip type, wrap-around hanger with an antomatic packoff sealing. When the casing load is suspended, the packof automatically seals the casing annulus below the slips. Maximum working pressure 10,000psi. The hanger is capable of supporting up to 50% of the pipe body yield at rating temperatrues.
NW22-H Casing hanger
The NW22-H type casing hanger is a wrap-around, slip style, non-automatic for shallow wells with light casing loads (maximum working pressure 10,000psi). It is ideal for use where casing weight is insufficent to energize the hanger seal. The seal is mechanically energized by cap screws. The hanger is capable of supporting up to 50% of the pipe body yield at temperatures, and it is commonly used above mudline systems.
NW-29 casing hanger
NW-29 casing hanger is slip style, wrap-around hanger with an automatically energized annular seal. The hanger is capable of supporting up to 80% of the pipe body yield at rating temperatures. The hanger provides minimum casing deflection and a hanger capacity that surpasses the capacity of the NW-21 and NW-22 casing hangers. When the upper slips move down and energize the packoff, the un-tapered lower slips engage automatically and apply controlled compression around the pipe. The lower slips do not move down, thus they do not creat a high compressive force, as do conventional tapered slips.
W-Casing Hanger
The type W casing hanger is a wrap-around,slip-type.weight- set hanger. It may be installed through the BOP and is suitable for heavy casing loads.The hanger supports casing weight and seals the annulus before the BOP is removed. Weight is supported on a solid shoulder not on seal -therefore.it will not over-compress the seal, the upper body diameter is larger to centralize and protect seals.
WE Casing Hanger
The type WE casing hanger is a wrap-around.slip-type hanger.The hanger is capable of supporting heavy casing loads,and is used when the annulus seal is required independent of casing load.The hanger is installed at the casing head or spool.The elastomer seal is mechanically by cap screws.This hanger is used commonly above mudline systems.
Mandrel Casing Hanger
The caing hanger ia a mandrel style,medium capacity.Hanger used in most service conditions.The Hanger is used in the NW bowl profile and utilizes radially energized elastomer body seals to affect a positive annular seal. The Hanger neck is the same diameter as the casing it suspends, it therefore can be used with a standard secondary seal.
CASING SPOOL
NW-22/NW-29 Casing Spool
The NW-22 casing spools are a straight bore bowl design. NW-22 casing spools provides interchangeability of casing hanger NW-22 and NW-21. If a bowl protector is required during the drilling process, using the NW-22-BP casing spool, including lock down screws in teh upper flange would be recommended. Bottom preparation can be the "P" secondary seal type or the bit guide preparation type. The BG preparation allows the use of reducer busing "4-O" and " PE" ( pressure engerized).
Secondary Seal
NW secondary seals are available for all internal and external diameter sizes used in casing head spools and tubing head spools.
PE Secondary seal
For 10000psi applications, the PE reducer bushing can be installed in casing head spools NW-22 and NW-29 prepared with "BG" lower internal preparation. Reducer bushings are designed with a reduced internal diameter to serve as an integral bit guide.
O-O Secondary seal
The "OO" reducer bushing is to be installed in casing or tubing head spools with integral "OO" lower internal connection. The bushing is available for application up to 5000psi working pressure. Reducer bushing are designed with a reduced internal diameter to serve as an integral bit guide.
4-O Secondary seal
The "4-O" reducer bushing is to be installed in casing or tubing head spools with the "BG" lower internal connection. The bushing is available for application up to 5000psi working pressure. Reducer are designed with a reduced internal diameter to serve as an integral bit guide.
P Secondary seal
Double P seals are ideal for use as crossovers where moderately serve service is expected. Double P seals are sized to accomodate the tolerance range of casing and may be used on machined hanger necks. P seals are engergized by means of injection plastic packing through ports containing check valves, maintaining a constant pressure on the seal itself. It is available for applications up to 10000psi working pressure.
TUBING HEAD
TC1A Tubing Head
TC1A Tubing Heads are a straight bore bowl design which avoids damage to sealing areas by drilling tools,and prevents wedging of the tubing hangers.bowl protectors and test piugs. The secondary seal for Ihe last casing pipe can be "P" seal type or the bit guide preparation type (TCM-BG).The BG preparation allows the use of reducer busings "4-0" and "PE" (Pressure Energized).The upper flange is supplied with lockdown screws for packoff re-nergization and tubing hanger retention.Side outlets are LP or studded type prepared with internal threads to install a valve removal plug when desired.The lower flange includes a grease fitting and orifice for testing of the secondary seal. The type of the tubing head that can oreentate the tubing hanger is provided, if required.
C1A-EN Tubing Hanger
TC1A-EN tubing hanger is an extended neck and threaded single completion tubing hanger, sealing the annular space by compression which is energized by lock down screws in the TC1A tubing head.The upper part of the extended neck has "S"type spring seals or O ring to pack against the internal diameter of the tubing head adapter,making a reliable and tested way to confine the well pressure.The TC1A-EN tubing hanger is used with TC1A-EN tubing bonnet.
TC1A-CC Tubing Hanger
The TC1A-CC tubing hanger is arranged for a continuous control line.This allows more than one control line.This threaded mandrel hanger with "K" seals for annulus packoff amd an extended neck with "K" seals to packoff the tubing head adapter falnge.lt has an back pressure valve thread.Other tubing thread sizes.including premium threads are available upon request.
TC1A-CH Tubing Hanger
The TC1A-CH is same as TC1A-EN but is arranged for a maximum of one control line up to 3/8"OD,which is terminated at the bottom of the hanger.The TC1A-CH hanger is made to work in conjunction with the TC1A-CL tubing bonnet.
ESP Tubing Hanger
The TC ESP hanger is dual-ported, with one port designed to accept a single production tubing string. The second port is designed to accommodate the electrical conductors that pass the current between the surface cable and the subsurface cable that goes lo the pump.We standardized on EUE thread configurations. Nevertheless, additional thread profiles and different configurations can be supplied.
TC1W Wrap-around Tubing Hanger
TC1W is a slick-joint wrap-around tubing hanger which does not require a polished joint to slip over the tubing pipe inset.The seal between the pipe and the hanger is obtained by energizing the lockdown screws in the upper flange head.
BO-2 Tubing Hanger
A BO-2 coupling-type tubing hanger uses a one-piece coupling that is externally threaded with a coarse heavy-duty ACME thread. Internally the coupling will provide tubing threads in the top and bottom along with a back-pressure valve groove. The BO-2 coupling is attached to the last tubing joint and is run in conjunction with a TC1W wraparound-type packoff. Ultimately, the BO-2 coupling is made up into a BO-2 adapter that is assembled on the bottom of the Christmas tree.
TC1A/TC1A-B Tubing Hanger
TC1A is a threaded mandrel-type hanger,this hanger with an integral compression-type annulus seal that is actuated by string weight and or by lockdown screws.This hanger can be supplied with backpressure valve threads.
BMS Tubing Hanger
BMS tubing hanger is designed for high temperature and corrosive environments. The BMS hanger features the SRL Neck Seal and the metal body Seal.The maximum working pressure is 20000psi.The control line should be provided ( continuous line } .if required.
TC-CL/TC-EN/TC-CC Adapter Bonnet
The TC-EN,TC-CL,and TC-CC tubing bonnets are designed to work in conjunction with the TC1A- EN.TC1 A-CH,and TC1A-CC tubing hangers.The tubing bonnets fit over the extended neck tubing hangers to provide a radial sealing surface for the "S "type spring seals or O ring on the extended neck of the tubing hanger to seal in the tubing bonnet. The tubing bonnet is composed of an API thru-boll bottom flange and a studded top flange,the bottom flanges have 1/2" test ports.The TC-CL tubing bonnet is arranged for a maximum of one control line, which is terminated at the bottom of the TC-CL body. The TC-CC is arranged for continuous control line hole.which enters the bottom of the body and exits the body through the 3/8"NPT connection. This bonnet can accommodate more than one control line.
ADAPTER
B2P Adapter Bonnets
B2P tubing bonnets have API flanged bottom and studded/flange top connections.these bonnets have female sealing threads to suspend tubing over TC1W wrap around hanger packoff or can be used with the TC1A hanger.They are certified for use up to 5000 psi working pressure at -50°F to 250°F.
B02 Adapter Bonnets
BO-2 has an API flanged bottom and studded top connection.A socket in the lower bore consists of a support thread and a radial seal surface for the BO-2 coupling hanger. The coupling hanger has backpressure valve preparation that provides well control until Christmas Tree is installed. BO-2 is certified for use up to 10000 psi at-50 °F to 250°F.
B1 Adapter Bonnet
B1 Tubing bonnets have internal threads to suspend tubing or can be used with TC1W tubing hangers. B1 bonnets have threaded pin connections for the top sections of the wellhead. B1 adapters are availble in most sizes and pressure ranges.
ESP Adapter Bonnet
ESP adapters have seal bores to accommodate both a tubing hanger neck seal and an electrical power feed-thru device. Standard ESP adapters are equipped with rotating flanges to mate to the tubing head, minimizing concerns over alignment issues. Positive alignment can be obtained through the use of optional features in the mating ESP hanger.ESP adapters can be supplied to match standard tubing heads rated to 3,000 and 5,000 psi working pressure.
Christmas Tree Cap
Christmas Tree Cap is a top connector which is used on the top of X-Mas Tree. It's main function is to provide access to the X-Mas Tree bore. It is basically consisting of a Flanged body. Blanking Plug, Hammer Nut as principal parts and seal ring as secondary parts. Blanking Plug has a provision to accommodate pressure gauge to ascertain inside pressure of the well. Inside of Flanged body is having API-UPTBG thread as lift thread
WELLHEAD AND CHRISTMAS TREE
![]()
Multi- Lateral Slim Twin Wellhead and ChristmasTree
Our conventional Wellhead Systems provide the flexibility, compatibility and interchangeability required for a wide range of surface applications. With the proven features of our systems comes reduced inventory requirements, lower costs and the ability to provide standard components. We has earned a reputation for quality wellhead products that meet or exceed API 6A specifications. We offers a complete line of conventional wellheads and Christmas trees to suit all casing and tubing programs for working pressures up to 20,000psi. Equipment for surface applications ranges from low pressure, conventional equipment to systems for servere service and geothermal application.
Features
- Two separate wells inside a single conductor.
- Various casing/tubing strings in each well.
- Reduction of the number and size of platforms required for field development.
- Maximized use of signle platform slots.
- Major savings for project (time and platform reduction)
Scope
| item |
unitized |
| conductor |
36" |
| surface casing |
13- 3/8" |
| completions |
5 1/2"-1-7/8" |
Surface Test Tree
Adaptable and compact design provides added flexibility and mobitily.
Low torque metal-to-metal sealing on all gate valves provides increased reliability and ease of operation. Hydraulic "failsafe- flow line valve with stem positioning indicator enhances safety.
Swivel enables rotation of the test string for packer setting and disconnect operations.
Transportation basket with four-point lifting sling and integral forklift pockets for protection during shipping and ease of handling.
![]()
Audited Supplier 
){kind=link}
){kind=link}