Repair of Leaking DV Tool West Texas (Permian Basin)

Well Completion with Wel-lok™ CLS

Statistics

Location:
Permian
Environment:
Onshore
Deviation:
Depth:
5000'
Downhole Pressure:
2150psi
Differential Pressure:
7000psi
Temperature:
60ºC
Setting ID:
6.184"
Restriction:
6.059"
Sealing ID:
6.184"

Identification of problem

A client was attempting to pressure test a casing cement job after pumping the second stage of cement through a DV tool and found the ports on the DV tool had not properly closed. The leak off through the DV tool prevented the client from verifying the quality of the cement in the well.

Issues to overcome

After sealing the cementing ports, the ID of the DV tool had to be drilled out to drift and maintain pressure integrity to achieve a positive pressure test and resume completion of the well for production.

Application

A Wel-lok™ CLS was set inside the 7” DV tool across the cementing ports.

Outcomes/Conclusion

After setting, the CLS was milled out to casing drift ID leaving only bismuth alloy in the cementing ports to seal and the client successfully pressure tested the well to 7,000 psi before continuing on with the completion of the well. This was the first commercial field run of BiSN’s Wel-lok™ technology.

About the application

The Wel-lok™ CLS (Casing Leak Seal) was developed to address the shortcomings of traditional methods in sealing leaks in tubings and casings. This tool provides a V0 rated seal with higher pressure ratings than conventional casing patches with a larger through bore than traditional packoffs. If full bore access is required, it can be milled out leaving a seal only across the leaking area of the well.

Casing Leak Seal - BiSN
Casing Leak Seal - BiSN
Casing Leak Seal - BiSN
Casing Leak Seal - BiSN

How it works…

The Wel-lok™ CLS (Casing Leak Seal) was developed to address the shortcomings of traditional methods in sealing leaks in tubings and casings.

Get in touch and find a
permanent solution for your well

Businesses worldwide are benefitting from BiSN's well services in the field. Contact us today and embrace tomorrow's downhole well solution, today.

This is a required field
This is a required field
Please enter a valid email
This is a required field
This is a required field

Don’t miss out on the latest technical updates and advancements. Subscribe today.

Please enter a valid email address.

Our website uses analytics, marketing and preference cookies to both provide the most relevant experience for our users and to give us information about how our site is used. By clicking “Accept All”, you consent to the use of these cookies. However, you may visit "Cookie Settings" to provide a controlled consent.

Accept All Cookies