ACCESS THE RESERVOIR BELOW THE ESP
 

Y-TOOL ESP BYPASS SYSTEM

ESP bypass systems, commonly called Y-tools, are used to gain access to the wellbore below an electrical submersible pumping (ESP) system without having to retrieve it. This enables stimulation, production logging, testing, and interventions on wireline or coiled tubing without having to deploy a workover rig and pull the completion.

 

BENEFITS

Enable wireline and coiled tubing operations below the ESP

The bypass conduit enables easy access to the wellbore below the ESP using coiled tubing or wireline
Log, survey, or intervene without pulling the ESP


The ESP remains in place while logging runs are conducted and during coiled tubing interventions
Run a second ESP below the first to meet production goals


A second ESP can be run through the bypass conduit to enable additional production from the well



applications

  • Production logging and intervention operations in ESP-produced wells
  • Horizontal and vertical wellbores
  • Dual-depth ESP production

capabilities

  • Can be run in wellbores as small as 5.75 in. (146 mm)
  • Protects the ESP during natural flow and bullheading operations

features

  • The bypass conduit enables access to the wellbore below the Y-tool while the ESP remains in place
  • The design enables production logging to be conducted below the intake while the ESP is operational
Land rig installation of a Y-Tool ESP bypass system


Y-tool bypass systems are run on production tubing and consist of two conduits. One conduit is offset and houses the ESP, keeping it firmly positioned in the wellbore. The other conduit provides a path for access to the wellbore below the system.

Common applications include conducting production logging, reservoir analysis, and well tests below the ESP. Coiled tubing can be used to push logging tools deeper into laterals, to engage and actuate flow control devices, to set plugs for water shutoff operations, and other coiled tubing intervention jobs. The bypass conduit can also be used to run an additional ESP below the Y-tool system to add additional production from nearer the production zone.

TECHNICAL CHARACTERISTICS

3D render of a Y-tool ESP bypass system in hole

ESP size (RU)

ESP size

Casing size

Capacity

Logging tool max OD

Coiled tubing max OD

3

3.19 in.

5.75  in.

1,761 bbl/d

1.18 in.

1 in.

81 mm

146 mm

280 m3/d

30 mm

25.4 mm

3

3.19 in.

6.625 in.

1,761 bbl/d

1.85 in.

1.5 in.

81 mm

168 mm

280 m3/d

47 mm

38 mm

4

3.38 in.

6.625 in.

1,258 bbl/d

1.23 in.

1 in.

86 mm

168 mm

200 m3/d

32 mm

25.4 mm

3

3.19 in.

7 in.

1,761 bbl/d

2.05 in.

1.5 in.

81 mm

178 mm

280 m3/d

52 mm

38 mm

4

3.38 in.

7 in.

1,258 bbl/d

1.57 in.

1 in.

86 mm

178 mm

200 m3/d

40 mm

25.4 mm

5

3.62 in.

7 in.

3,145 bbl/d

1.42 in.

1 in.

92 mm

178 mm

500 m3/d

36 mm

25.4 mm

5A

4.06 in.

7 in.

5,661 bbl/d

1.23 in.

1 in.

103 mm

178 mm

900 m3/d

32 mm

25.4 mm

7A

5.35 in.

9.625 in.

10,064 bbl/d

2.24 in.

1.75 in.

136 mm

245 mm

1600 m3/d

57 mm

44.5 mm

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