Evolution Oil Tools- Artificial Lift | Flow Control | Completions | Coiled Tubing

SC Tension Unloader Valve

The SC Tension Unloader Valve provides a means of equalizing tubing and annulus pressures when used with a tension packer. It also serves as a by-pass to allow fluid to pass though the mandrel of the packer while running the tubing string in and out of the well.
Description

Applications

 

  • Equalizing tubing pressure with the 32-A Tension Set Packer
  • Providing by-pass when running in or retreiving packers.

Features & Benefits

 

  • Apply set-down weight to open and upstrain to close
  • Unloads pressure from either direction
  • May be run in the open or closed position
  • Bonded seal allows repeated opening
  • Unrestricted fluid bypass when run in the open position
  • Provides torque transmission for packer operations

 

 

 

Technical Data Sheet

 

 

Description

 

The Evolution SC Tension Unloader Valve provides a means of equalizing tubing and annulus pressures when used with a tension packer. It also serves as a by-pass to allow fluid to pass though the mandrel of the packer while running the tubing string in and out of the well.


Operation

 

The SC Tension Unloader is usually run with the 32-A Packer. The unloader equalizes tubing/annulus pressure differential so the packer can be pulled or moved and reset. It also provides a by-pass that allows fluid to flow through the packer mandrel when running in or retrieving, minimizing the swabbing effect of the packing elements.

The collet design requires substantial force to open or close, so it remains open when running or retrieving. Once the tool is closed it remains closed until sufficient compression forces it open. The tool is full opening, therefore compatible with the 32-A Packer.

 

NOTE: When running the SC Tension Unloader Valve, always match nominal tubing size of the unloader to the size of tubing run above the unloader and packer.

Specifications


Tubing

O.D

In/mm

Tool

MAX. O.D.

in/m

MIN. I.D.

in/mm

Standard Thread Connection

Base Product Number

1-1/4

31.75

2.250

57.15

0.750

19.05

1.660 EU 10 RD

525-04

1-1/2

38.10

3.125

79.38

1.500

38.10

1.900 EU 10 RD

525-05

2-3/8

60.33

3.250

82.55

1.625

41.28

2-3/8 EU 8 RD

525-06

2-3/8

60.33

3.750

95.25

2.000

50.80

2-3/8 EU 8 RD

525-20

2-7/8

73.03

4.500

114.30

2.500

63.50

2-7/8 EU 8 RD

525-25

3-1/2

88.90

5.469

138.91

3.000

76.20

3-1/2 EU 8 RD

525-35

4-1/2

114.30

6.250

158.75

4.000

101.60

4-1/2 EU 8 RD

525-45

 

SC Tension Unloader Valve

 

Tags - eot, evolution oil tools, oil tools, oil & gas, completions, packers, SC Tension Unloader Valve, 32-A Tension Set Packer

 

 

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