Offshore the plan changed due to the efficiency demonstrated by Welltec®. A total of nine runs were performed using various e-line clean-out technologies. For the first two runs the Well Cleaner RCB retrieved approximately 120 lbs of sand. Determining it was loose debris, the Well Cleaner PST was put into action for runs three to eight, increasing the number of bailer sections incrementally up to the maximum number of eight.
With this configuration, the Well Cleaner PST set a record by collecting >300 lbs of sand in each run. At this point a hard restriction was located in the well and the operator turned back to the Well Cleaner RCB to attempt to remove this and recovered another ~ 60 lbs of sand.
In total over 1,552 lbs of sand was successfully retrieved via e-line clean-out methods before the logging run could be conducted.
The operator was very impressed with the efficiency and recovery rates of Welltec’s clean-out solutions which in total cleared ~ 1,735 ft of the well from solids from 10,066 – 11,801 ft MD (3,068 – 3,597 m). This enabled the operator to log for well integrity and take a decision on adding perforations.
The excellent results have demonstrated to the operator that Welltec’s cleanout solutions can deliver many of the objectives that they have for other wells; optimizing production without a workover rig or CT.
WELL TYPE: OIL PRODUCER
MAX. RESERVOIR PRESSURE: 272 BAR
MAX. TEMPERATURE: 167° F
H2S: 40 PPM
MIN. ID: 4,607’’ @ 2046 FT MD
MAX. DEVIATION: 91,4°@ 13,369 FT MD
MAX DL: 6.26° / 98.5 FT @ 11,960 FT MD