Milling scale and setting bridge plug on e-line
CROSSFLOW LIQUID RATE300-400 Sm3/d
WATER CUTApprox. 70%
WATER CUT FROM ZONE 2Approx. 45%
MAX. DEVIATION83° (@ nipple milling depth)
MIN. RESTRICTION IN WELL2.81" @ 10,207 ft MD
MAX. EXPECTED SIWHP110 BAR
After this leak occurred, the pressure decreased in an adjacent well producing from the same zone and that well was considered dead due to insufficient reservoir pressure. Zone 3 was in communication with that well but there was not enough pressure support in the area to produce both wells.
The second objective was to open the remote operated sleeves in zones 3 + 4 because of future plans of injecting into these zones. Due to higher time efficiency and cost effectiveness, the Well Tractor® and Well Miller® were selected to remove the scale build-up inside the wellbore. A Well Miller 212 and a Well Tractor 218 XR (Xtra Reach) were chosen to run in and open up the scale obstruction and thus provide the required final ID.
The scale was successfully removed from the well in two days. For the plug setting operation, Welltec® rigged up with the Well Tractor® 218 XR, a 2.71” OD hydrostatic setting tool and a 2.65” packer with a dual flapper valve installed at the bottom. The plug was successfully installed at 11,824 ft MD. Total time for the plug setting was 4.5 hours.
Deployed on e-line, our modular milling tools have proven to be robust and highly effective in removing well components that are malfunctioning or no longer required with robotic precision.
The Well Tractor® was regarded as a revolution in the industry when it was introduced in the 1990’s. It enables operators to extend the reach of traditional e-line deployment into highly deviated and horizontal wells.