Zonal Isolation Plug Application in Azerbaijan

Well Intervention with Wel-lok™ TS

Statistics

Location:
Azerbaijan
Environment:
Onshore
Deviation:
75º
Depth:
16,500'
Downhole Pressure:
2800psi
Differential Pressure:
2500psi
Temperature:
75ºC
Setting ID:
4.276"
Restriction:
3.496"
Sealing ID:
4.276"

Identification of problem

A client needed to shut off a producing zone in order to perforate and produce from a zone higher in the well.

Issues to overcome

The well was full of base oil and the tool needed to pass through a 3.5” ID stinger assembly before setting inside 5” tubing at an inclination of 75°. This required a tool with a maximum OD of 3.25” to seal inside a 4.276” ID at 75 °C and withstand 2,500 psi differential pressure.

Application

A Wel-lok™ TS EXD tool was set inside the tubing on telecoil.

Outcomes/Conclusion

This tool was qualified to 5,000 psi at our testing facility in Houston, TX. After being run in the well, it was pressure tested to 2,800 psi, successfully shutting off production from the unwanted zone.

About the application

The Wel-lok™ TS (Tubing Seal) was developed to overcome the shortcomings of traditional methods, using bridge plugs and cement during well abandonment. It is typically run on electric line but can be deployed on a slick line or coil tubing as well. It can pass through small restrictions such as damaged or crushed tubing, yet still create the gas tight seal. It has a higher expansion ratio than conventional plugs, higher pressure ratings than inflatable packers and gas blocking abilities that cement cannot match.

Tubing Seal - BiSN
Tubing Seal - BiSN
Tubing Seal - BiSN
Tubing Seal - BiSN

How it works…

The Wel-lok™ TS (Tubing Seal) was developed to overcome the shortcomings of traditional methods, using bridge plugs and cement during well abandonment.

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permanent solution for your well

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