TORCPLUG SUCCESSFULLY PERFORMS 11 SETTINGS – IN A SINGLE RUN

TorcPlug

Background

A client had well integrity issues in a gas lift well and needed to identify whether the location of the leak was in the tubing or in the side pockets. The well had been producing since 1998 but was shut in since April 2015. Both scale and corrosion were anticipated to be present. Welltec®  proposed to perform this operation solely with the TorcPlug rather than multiple runs with a leak detection tool and subsequent conventional bridge plugs required to isolate. This method would enable all operations to be completed in a single run with increased efficiency as a result.

OPERATION

The TorcPlug was mobilized to identify the leak by: Setting plug above side pockets to verify integrity above. Re-position plug to selectively test each side pocket as needed. Using the TorcPlug as a solution gave the operator the flexibility to test each depth with the running tool attached, hence able to quickly re-position the plug as needed.

ACHIEVEMENTS

When testing the tubing integrity it was discovered (surprisingly) that the leak was NOT from one of the side pocket mandrels. Rather it was from the tubing above. This changed the work scope to narrowing down the leak point in the tubing. The TorcPlug was set a total of 11 times at different depths in one sigle run and identified the location of the leak in the tubing. The TorcPlug was then re-positioned to be left in the well as a deep set barrier but a communication error above the TorcPlug BHA occurred requiring the string to be pulled out. On surface the TorcPlug evidenced no visible signs of wear after being operated and set more than 10 times at different depths. On the 2nd run a new TorcPlug was run to depth below the production packer to be set as a deep barrier. When testing the deep barrier a small leak was detected and the TorcPlug was moved upwards two times and achieved a successful test as a deep barrier, demonstrating again the value of having a retrievable, multiset plug versus a conventional retrievable plug