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Wellhead Equipment & Christmas Tree
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Wellhead Equipment & Christmas Tree

Category: Drilling accessory equipment
Key words:Drilling accessory equipmentWellhead Equipment & Christmas Tree
Service Hotline:+86-513-87635480
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Product description
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supplies wellheads and Christmas trees suitable for landand offshore applications to explore, develop and pro-duce oil. Designing, producing, manufacturing, test,quality control conform to API 6A, latest edition. Our com-pany is licensed to using monogram of API spec 6A.The main pressure-containing parts of these productsare made of forgings or specially smelted low alloy steel(stainless steel), having high bearing strength. Well-heads manufactured by our company are available in105MPa maximum working pressure and 500 tons maxi-mum suspending capacity, material classes from AAthrough FF, temperature classes from L through V, prod-uct specification levels from 1 through 4 and PR-2, andare in accordance with NACE Standard MR0175. Ourcompany is licensed to API 6A, API 6D, API 16C, API16A and API 7.

Wellheads supplied by Yancheng Sanyi Petro-chemical Machinery Co., Ltd. contain many differentkinds of configurations, meeting requirements of all kindsof bore frames and casing programs, providing servicein different working conditions. Christmas trees and aux-iliary equipment are available at your option. Wellheadsalso can be designed and manufactured according tocustomers' requirements.

The wellheads and Christmases have won greatacclaim from the customers, therein to, patented prod-uct "TFZ35-70A" casing head series was awarded agolden medal at "The Ninth China Patent New Techni-cal & New Product Fair" The products have been lot-exported to many countries and regions, for example,USA, UZBEK, SYRIA, INDIA etc.

Series TFZ 35-70A casing head

Based on all kinds of drilling and oil-production casinghead used in the oilfields at home and abroad and manu-factured by Sanyi company, Series TFZ35-70A casinghead, considering of the actuarial conditions of drillingprocess flow, is a new patent product (Patent No.01217781.4), which gathers all of the advantages ofcasing heads, simples installation process and furthersto raise the safety and reliability.

Main technology parameters

Casing procedure: 20"×133/8"×95/8"×7" or 51/2";

Connection:

Of the top: 13 3/8"×5000psi (10000PSI) flange withgasket ring BX 160 (BX159);

Of the bottom: 13 3/8" CSG casing thread;

Flange of side outlet: 35 & 65 R27 (70& 65 BX153);

Supporting load:5000KN;

Interchangeable hanger: 4", 41/2", 51/2", 7" & 95/8

Working pressure: 35MPa (70MPa)

Suitable depth of well: 5000~7000m

Working temp: PU level;

Working medium: Oil, gas and mud;

Vertical bore minimum: ¢ 316mm

 

Rated material class: DD

Series TFZ 35-70A casing head

 

Item

Component

Qty

Material

Remark

1

Packing

25

PTFC

 

2

Packing Washer

10

2Cr13

 

3

Lock Screw

5

35 CrMo

 

4

Packing Nut

5

40Cr

 

5

7" Casing Hanger

1

 

 

6

95/8" Casing Hanger

1

 

 

7

7Casing Head

1

35 CrMo

 

 

Series TFZ 35-70A casing head

 

Item

Component

Qty

Material

Remark

1

1lock sleeve

25

35 CrMo

 

2

Bolt

4

 

StandardM10

3

Fitting

4

20 CrMo

 

4

Inside Sliding Bush

1

35 CrMo

 

5

Inside Seal Ring

1

NBR

 

6

O-Ring

1

NBR

 

7

Outside Seal Ring

1

NBR

 

8

Outside Sliding Bush

1

35 CrMo

 

9

Retaining Ring14130

1

35 CrMo

 

10

O-Ring

2

NBR

 

11

11Hanger Housing14130

1

35 CrMo

 

Christmas Tree & Tubing Heads

The Christmas tree is the assembly of the valve and the accessories, which is used for the fluid control of the oil/gas well, and supplying the inlet for the tubing string. The Christmas tree refers to all the devices on the tubing head and the flange. The Christmas tree could be assembled differently so as to meet the different requirements. The Christmas tree could be used for oil exploration, gas exploration, water adding, compression fracture, acidification, etc. The different Christmas trees are with the different pressure grades.

The Christmas tree and the tubing heads are mainly used for gas exploration and adding. Because the natural gas is with the low relative density and adding pressure, while the wellhead is with the high pressure and flow rate, it would be easy to leak. Sometimes, there's H2S, CO2 and other corrosive medium in the natural gas. It would have the more strict requirements on the sealing capacity and the sealing materials of the Christmas tree. Thus, the tube and the sleeve should be with double valves. The valves should be forged by the best-quality steel for the high-pressure or extra-high-pressure gas well.

 

The main bearing pieces of the Christmas tree and the tubing heads are forged or cast, with the advantages of high bearing capacity, safety, reliability, etc.

No.

Item

Quantity

Material

Remarks

1

Pressure Gage

2

 

Standard Unit

2

BJ14H70/4 Break Valve

1

 

Please refer to Break Valves for details.

3

Break Valve's Joint

1

30CrMo

 

4

65/70Meter's Flange

2

30CrMo

 

5

PFFA65/70?Flat Valve

6

 

Please refer to Gate Valves for details.

6

Tubing Head Cross-Tee

1

30CrMo

Please refer to Christmas Tree for details.

7

Upper Flange

1

30CrMo

 

8

PFFA78/70?Flat Valve

3

 

Please refer to Gate Valves for details.

9

Small Cross-Tee

1

 

 

10

JLK65/70?Throttle Valve

2

 

Please refer to Throttle Valves for details.

11

Christmas Tree Cap

1

30CrMo

 

12

BJ25W70/5?Break Valve

1

 

Please refer to Break Valves for details.

 

Tubing Head Cross-Tee

1. Structure of Tubing Head

Usually, the tubing head is the cross-tee connected by flange both at top and bottom. The tubing head is installed on the flange of the casing head, so as to hang the tubing string and seal the annular space between the tubing string and the production casing. The tubing head is made up of the tubing head cross-tee and the tubing hanger.

2. Functions of Tubing Head

1) to hang the tubing string;

2) to seal the annular space between the tubing and the sleeve;

3) to assist to connect the casing head and the Christmas tree;

4) The 2 side ports on the tubing head cross-tee could be used for water adding and washing well.

3. Tubing Hanger

The tubing hanger is used to support the tubing string and seal the annular space. The tubing hanger is sealed so that it's convenient for operation. It's with the advantages of the rapid speed and safe performance. Thus, it's widely used for the middle or deep wells and the normal wells.

The tubing head cross-tee could completely satisfy the requirements of API 6A. It' s with the advantages of high bearing capacity, safety and reliability. There are two kinds of side outlets, including the thread one and the cutting-silk one. The cutting-silk side outlet is with 1(1/2)LP inner thread.

 

No.

Item

Quantity

Material

Remarks

1

Greasing Valve

6

 

 

2

BT Seal Ring

2

NBR

 

3

Tubing Head Cross-Tee

1

30CrMo

 

4

Tubing Hanger

1

 

 

5

Set Screw

12

30CrMo

 

6

Set Screw's Press Cap

12

40Cr

 

7

Fille

60

NBR

 

8

Filler's Spacer

24

2Cr13

 


 

 

 

KY65/25

KQ65/60

Rated Pressure

3500psi

8500psi

Nominal Size

2(9/16)″

2(9/16)″

Working Temperature

P U

P U

Medium

Crude Oil, Water

Crude Oil, Water

Connecting Form

Yoke

Flange

Material Grade

AA-DD

AA-FF

Standard Grade

PSL1-2

PSL1-3

Capacity Grade

PR1-2

PR1-2

 

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