Well heads

Destination:

The Well heads are used to suspend the casings and to seal the annular space between them, from 2⅜ ÷ 20 inches and 2000 ÷ 10000 PSI W.P. in any combination.
Well Heads are manufactured in Standars Trim, H₂S-NACE si H₂S + CO₂-NACE.
About Material class and Temperature classification, see Appendix A.

Constructive characteristics of the main components:

Available to meet all appropriate API 6A requirements.

The casing heads stack comprises the following main elements:

• bottom flange (casing head housings), available in simple design or in design with a landing base
• double flanges (casing head spools; tubinghead)
• slips (casing hanger)
• primary and secondary sealings
• assemblying elements
• intermediate flanges (pack-off flanges)
• tubing hanger
• top connection (bonnet)

Outside outlets LP or TBG threaded or threaded connection flanges.

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Casing head housing

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API nominal top flange inches	Casing size inches	Slips size inches
2,000 PSI
9	8 ⅝	4 ½÷ 7
11	8 ⅝	4 ½÷ 7
	9 ⅝
	10 ¾
13 ⅝	10 ¾	5 ÷ 10 ¾
	11 ¾
	13 ⅜
16 ¾	16	6 ⅝ ÷ 16
21 ¼	20	10 ¾ ÷ 13 ⅜
3,000 PSI
11	8 ⅝	4 ½÷ 7
	9 ⅝
	10 ¾
13 ⅝	10 ¾	5 ÷ 10 ¾
	11 ¾
	13 ⅜
16 ¾	16	13 ⅜
20 ¾	20	11 ¾ ÷ 13 ⅜
	21 ½
26 ¾	24 ½	16
5,000 PSI
11	8 ⅝	4 ½÷ 7
	9 ⅝
	10 ¾
13 ⅝	13 2/8	5 ½÷ 10 ¾
16 ¾	16
18 ¾	18 ⅝	13 ⅜
21 ¼	20	10 ¾ ÷ 13 ⅜
10,000 PSI
13 ⅝	11 ¾	5 ½÷ 10 ¾
	13 ⅜

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Casing head spools

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API nominal bottom flage	API nominal top flange	Slips size
Inches x PSI	Inches x PSI	Inches
2,000 PSI WP
13 ⅝ x 2,000	11 x 2,000	4 ½ ÷ 7
3,000 PSI WP
13 ⅝ x 3,000	11 x 3,000	4 ½ ÷ 7
16 ¾ x 3,000
13 ⅝ x 3,000	13 ⅝ x 3,000	5 ÷ 10 ¾
16 ¾ x 3,000
21 ¼ x 3,000
5,000 PSI WP
11 x 3,000	11 x 5,000	4 ½ ÷ 7
11 x 5,000
13 ⅝ x 3,000
13 ⅝ x 5,000
16 ¾ x 3,000
20 ¾ x 3,000	13 ⅝ x 5,000	7 ÷ 10 ¾
21 ¼ x 3,000
10,000 PSI WP
11 x 10,000	9 x 10,000	4 ½ ÷ 7
13 ⅝ x 5,000	11 x 10,000
13 ⅝ x 10,000		4 ½ ÷ 7 ⅝
13 ⅝ x 5,000	13 ⅝ x 10,000	7 ÷ 10 ¾
16 ¾ x 5,000
18 ¾ x 5,000
18 ¾ x 10,000
15,000 PSI WP
11 x 10,000	9 x 15,000	4 ½ ÷ 5 ½
11 x 15,000	11 x 15,000	4 ½ ÷ 7

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Tubing heads

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API bottom flange	API top flange	Tubing head type
		Conventional	Hanger flange
11 x 2,000	7 1/16 x 2,000	X	–
11 x 3,000	7 1/16 x 3,000	X	X
11 x 3,000	7 1/16 x 5,000	–	X
11 x 5,000		X	X
7 1/16 x 5,000	7 1/16 x 10,000	X	–
9 x 10,000		X	–
11 x 10,000		X	X
7 1/16 x 15,000		–	X
7 1/16 x 20,000	7 1/16 x 20,000	–	X