WRD helps client reduce exposure and mitigate LIH risks
Well typeOil producer
Fishing depth3,186 m MD
Max tool space22 m
Max. flow700 scm/d
A second WRD was placed at the top of the toolstring below the cable head. The planned job was run using a 7/16 cable combined with a 9-3 rope socket providing a high pull force and allowed the full use of the cable SWL.
The client was concerned that the entire string might be left in hole but since the 318 WRD was placed between the Welltec tools and third party BHA the client decided to release it first in an attempt to minimize the fish downhole.
After successfully releasing the mid section of the string, it was confirmed that the third party string was still stuck but the Welltec Tractor was recovered helping to minimize number assets left in hole
Given the limited rig up height, being able to split the BHA into two shorter sections also enabled the subsequent fishing operations to move forward.
This allowed for the LWI operation able to continue as planned, without the need to return and fish the tools with a much more expensive rig option.
Immediate recovery of the upper part of the toolstring reduced the client exposure to LIH costs.
Welltec Release Device (WRD®) is a simple tool which adds versatility and risk reduction to the operation. It provides predetermined locations in the toolstring where it can be parted, should it become stuck.