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Safety valve

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Tubing -Retrievable Safety Valves

Starpetrotech Type Tubing Retrievable Safety Valves are self-equalizing, flapper type safety valve designed to shut in a well at a point below the surface. The safety valve is a surface controlled, subsurface safety valve and is normally closed. The valve is held open by hydraulic control pressure and remains open until the control-line pressure is exhausted. The hydraulic control pressure is transmitted from a remote location through a control line to operate the valve. The valves are value engineered to provide long-lasting, safe, and reliable operation. N-Rod Piston Safety Valves are designed and built for performance and reliability. The rugged hydraulic actuator of the safety valve provides durability and isolates the internal workings from well fluids through its unique construction. The metal-to-metal sealing integrity in the body joints and closure mechanism places it in a premium valve category while featuring an economical price. The simple, compact design enhances the valve's overall reliability and provides for trouble-free operation. N-Rod piston safty valves are avialable with working pressure rating to 10000psi. Single Rod Piston Safty Valves are used a single rod piston with reliable spring-ennergiaed, filled no-elastomer dynamic seals; a stacic, full-closed, metal to metal seal. The valves are designed for general production with enhanced reliability and long life. The valves provide reduced OD, premium piston system, deepset design and many other optional fratures. Single Rod piston safty valves are avialable with working pressure rating to 10000psi and always be used in the wells with extrem down hole conditions.

Features and Benefit
 
  •  Simple, compact design
  •  Single Rod Piston type with Non-elastomer dynamic piston seals
  •  N-rod Piston type with unique hydraulic actuation(single-piece piston/flow tube)
  •  Metal-to-metal seal in closed position
  •  Positive debris barrier at both ends of flow tube
  •  Flapper sealing verified to sand service (no resilient seal required)
  •  Minimized potential leak paths
  •  Optimum reliability
  •  Superior well containment and safety
  •  Low friction, smooth operation
  •  Critical component isolated from well environment
  •  Enhanced debris isolation and tolerance
Applications
 
  •  General production completion
  •  Hostile well environments in compatible with elastomer
Technical Data
Tubing Size Max.OD Internal Packing Bore Pressure Rating
in. mm in. mm in. mm psi MPa

 

2 3/8

 

60.3

 3.70 93.38

 

1.875

 

47.63

 5,000 34.5
3.97 100.84 10,000 69.0

 

 

2 7/8

 

 

73.0

 4.65 118.11

 

 

2.125-2.312

 

 

53.98-58.72

 5,000 34.5
4.74 120.24 10,000 69.0
4.91 124.71 10,000 69.0

 

 

3 1/2

 

 

88.9

 5.20 132.08

 

 

2.562-2.812

 

 

65.07-71.42

 5,000 34.5
5.37 136.40 10,000 69.0
5.62 142.75 10,000 69.0

 

4 1/2

 

114.3

 6.73 170.94

 

3.750-3.812

 

95.25-96.82

 5,000 34.5
6.97 177.04 7,500 51.7

Safety Valve Landing Nipples

STAR Safety Valve Landing Nipples are used to accommodate wireline retrievable sub surface safety valves. These nipples have a locking recess and a hydraulic communication port located between the two polished bores. This nipple features an integral control line connection port which operates Sub Surface Safety Valve. The nipple is a one-piece construction, manufactured from bar stock and contains the highly successful, field-proven lock profile.

Features and Benefit
 
  •  Large ID
  •  Offered in various combinations of lock profiles
  •  The lock profile enables completion optimization without restriction to standard sealbore sizes
  •  Manufactured from bar stock with an eccentric machine slug containing the control-line connection
  •  The nipple is constructed without welding, providing homogeneous material properties
  •  The 10,000-psi (68.9-MPa) working pressure with standard materials 9Cr or 13Cr, other materials available on request ensure application versatility
Applications
 
  •  Production and injection wells
Technical Data
Tubing Size Tubing Weight OD Packing Bore
In. mm lb/ft kg/m in. mm in. mm

 

2 3/8

 

60.3

 4.6 6.85 3.40 86.36

 

1.875

 

47.63
4.7 6.99 3.40 86.36
2 7/8 73.0 6.4 9.52 4.22 107.19

 

2.312

 

58.72
6.5 9.67 4.22 107.19

 

3 1/2

 

88.9

 9.2 13.69 4.53 115.06 2.812 71.42
10.3 15.33 4.53 115.06 2.750 69.85

 

4

 

101.6

 10.9 16.22 5.28 134.11

 

3.312

 

84.12
11 16.37 5.28 134.11

 

 

4 1/2

 

 

114.3

 12.6 18.75 5.56 141.22

 

3.812

 

96.82
12.75 18.97 5.56 141.22
15.2 22.62 5.56 141.22 3.688 93.68
Well Head Control System
 
Single Well Head Control System is designed to operate one independent oil/gas wellhead safety valve and controls the SCSSV, Master Valve, Wing Valve and Choke Valve of the single well in an orderly way. It can close the safety valve by manual shutoff, and RTU remote shutoff. It also has fire prevention safety control and can monitor the pressure of the process pipelines and carry out protection measures. The single wellhead panel can control hydraulic or pneumatic actuator. The hydraulic power source can be provided by pneumatic pump, motor pump, or manual pump. The pneumatic power source can be provided by
 

air compressor, industrial bottled Nitrogen, and pipeline natural gas.Multi-Well Head Control System is suitable for the integrated control of multi oil gas wellhead safety valves. It improves the automatic and network management level of the equipment operation and maintenance cost. It is usually used in areas with relatively high density of oil gas wellhead, especially in the ocean oil platforms. The multi-wellhead control panel employs module design. The hydraulic supply module and RTU control module are commonly used and every single wellhead control module is independent with other modules and can control SCSSV, Master Valve, and Wing Valve of each wellhead independently. The hydraulic power source of the multi-wellhead control panel is provided by motor pump or pneumatic pump with automatic pressure complement and overflow functions. The startup or closing of the hydraulic pump is controlled by the mechanical pressure switches and starting box.

Technical Data
Type Pneumatic Control System
Service Standard or H2S- CO2 (NACE)
Quantity of Wellhead 2-5, 5-10, more than 10

 

 

Common Hydraulic Module

 Pneumatic Pump
Hydraulic Pressure Output:5,000-to 10,000-PSIG
ESD loop & Pilot supply, 50-100 PSIG

 

Single-wellhead Module

 Control SCSSV, Master Valve, Wing Valve
Remote ESD, fusible plug, low/high pressure, operation panel

 

 

 

RTU Module

 Input 4- 20mADC signal
Output I/O
Communication protocol: Module RTU
Suitable temperature is -45℃ to 80℃
Technical Data
Type Hydraulic Control System
Service Standard or H2S- CO2 (NACE)

 

Hydraulic Output

 10,000-to 15,000-PSIG   2,000-TO 4,000-PSIG
Pllot Supply 50-to 100-PSIG
Pneumatic/ Hydraulic Components

 

316SS
Amblent Temperature -30℃ to 55℃

Wireline-Retrievable Safety Valves

Top select Wireline-Retrievable Safety Valves offer premium features similar to a tubing retrievable safety valve and are landed in safety valve landing nipples that are equipped with a control line connected to the surface control system. This configuration enables the safety valve to be easily retrieved for repair or maintenance. When assembled to a wireline lock, the assembly can be installed in a safety valve nipple. Hydraulic control line connects the safety valve nipple to the surface emergency shut-down system. Loss of control line pressure will close the valve and shut-in the well. These wireline valves are premium valves due to the use of non-elastomeric seal material, metal-to-metal housing threads, high tensile strength metallurgy, and unique HP/HT packing and piston seal stacks when required by the application. These design features are imperative when considering applications for big bore, high temperature, high pressure, extremely corrosive, and hostile.

Features and Benefit
 
  •  Equalizing feature
  •  Large bore design
  •  The lock profile enables completion optimization without restriction to standard sealbore sizes
  •  Non-elastomeric dynamic seal assembly
  •  Easy field operation
  •  10,000-psi working pressure
Applications
 
  •  Production and injection wells
Technical Data
Tubing Size Tubing Weight Valve ID Nipple Seal Bore
In. mm lb/ft kg/m in. mm in. mm

 

2 3/8

 

60.3

 4.6 6.85 0.75 19.05

 

1.875

 

47.63
4.7 6.99 0.75 19.05

 

2 7/8

 

73.0

 6.4 9.52 1.13 28.58

 

2.312

 

58.72
6.5 9.67 1.13 28.58

 

3 1/2

 

88.9

 9.2 13.69 1.52 38.61 2.812 71.42
10.3 15.33 1.52 38.61 2.750 69.85

 

4

 

101.6

 10.9 16.22 1.75 44.45

 

3.312

 

84.12
11 16.37 1.75 44.45

 

 

4 1/2

 

 

114.3

 12.6 18.75 2.12 53.85

 

3.812

 

96.82
12.75 18.97 2.12 53.85
15.2 22.62 1.89 48.00 3.688 93.68

 

5 1/2

 

139.7

 17 25.30 2.56 65.02 4.562 115.87
23 34.23 2.25 57.15 4.437 112.70
7 177.8 35 52.09 3.38 85.85 5.875 149.22
About us

Top Select Holdings Limited is specialized in providing a complete line of drilling and well completion downhole tools, well hydraulic  and acid fracturing downhole tools  + More Information

  •  The Registered Office of the Company is at Vistra
    Corporate Services Centre, Wickhams Cay II, Road Town, Tortola, VG1110,British Virgin Islands.
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