API 6A 16-3/4" Wellhead Casing Head for Christmas Tree

• Customization: Available
• Drilling Program: Single Stage
• Applicable Medium: Mud, Natural Gas, Crude Oil
• Model NO.: 11"~21 1/4"
• Connection Form: Flange
• Well Type: Chassis Well
• Installation Position: Overwater
• Structure: Horizontal
• Type: Composite
• MOQ: 1 PCS
• Specification Level: Psl1,Psl2,Psl3,Psl3g,Psl4
• Material Level: AA,Bb,Cc,Dd,Ee,FF,Hh
• Transport Package: Wooden Case
• Specification: 11"~21 1/4"
• Trademark: Apimeivalve
• Origin: China
• HS Code: 8431431000
• Production Capacity: 5000 Sets/Year

Product Description

1. The casing head is a component connecting the casing and various wellhead devices. To support the gravity of the technical casing and reservoir casing, to seal the annular space between each casing, to provide a transition connection for the installation of upper wellhead devices such as bop, tubing head and tree, and through the two side openings in the casing head body, to perform the cementing, monitoring well sinking, and injection balancing operations.

2. The casing head produced by our company is a standard structure, and the casing hanger of our company is installed in the shell, and the casing hanger of different sizes and specifications can be selected according to the casing program and wellhead conditions. The upper part of this body is either an API 6B flange or an API 6BX flange. Bushing head side wing valve configuration, according to the user needs to design;

3. The casing head options are:

A. The lower part of the casing head can be the API standard round thread casing master connection or API standard partial trapeziform casing thread master connection, or the plug-in type casing connection or the slip type casing connection.

B. Welded support chassis can be provided.

C. There are two types of side outlet: pipe thread type and wire type. The threaded side port is machined with ri2/1 "female thread of valve changer.

D.W type casing hanger,WD type casing hanger

E. Threaded or welded bottom connection casing head

4. According to the number of suspended casing layers, it can be divided into single-stage casing head, double-stage casing head and three-stage casing head; The single-stage casing head is generally used in low pressure shallow formation production Wells. The double-stage casing head is suitable for most of the areas where the formation pressure is relatively clear, with more usage. Three-stage casing head is usually used in high pressure deep well or exploration well.

Pressure rations  psi (MPa)	2000~20000 psi (13.8~105 MPa)	Product specification  level	PSL 1 ~ PSL 4
Temperature rations	K~U	Performance  requirement	PR1,PR2
Material class	AA~HH	Suitable medium	Petroleum, natural gas, mud etc.

Flange  Size	Working  press(psi)	Casing  Size	A (mm)	B (mm)	C (mm)	D (mm)	Weight (kg)
11"	3000	8.5/8"	425	233	276	203	243
11"	3000	9.5/8"	425	233	276	229	238
11"	3000	10.3/4"	425	233	276	254	222
11"	5000	8.5/8"	425	233	276	203	311
11"	5000	9.5/8"	425	233	276	229	308
11"	5000	10.3/4"	425	233	276	254	304
13.5/8"	2000	11.3/4"	472	260	343	279	202
13.5/8"	2000	13.3/4"	472	260	343	318	193
13.5/8"	3000	11.3/4"	432	260	343	279	265
13.5/8"	3000	13.3/8"	408	238	343	317.5	259
13.5/8"	5000	13.3/8"	470	262	343	314	454
16.3/4"	2000	13.3/8"	483	268	422	318	367
16.3/4"	2000	16"	483	268	422	387	333
16.3/4"	3000	13.3/8"	508	270	422	384	431
16.3/4"	3000	16"	508	270	422	381	372
21.1/4"	2000	18.5/8"	508	260	511	457	547
21.1/4"	2000	20"	508	260	511	483	476
21.1/4"	3000	18.5/8"	584	381	511	457	645
21.1/4"	3000	20"	584	381	511	483	600