Pump FORM-A-BLOK AS pill and FORM-A-PLUG II plug to solve lost circulation problem and gain reservoir protection
After pumping 140 t of various lost circulation materials without success, the operator contacted M-I SWACO and requested a new proposal to solve the downhole losses. M-I SWACO proposed pumping a tandem pill consisting of the FORM-A-BLOK AS pill and the FORM-A-PLUG II plug.
Three tandem pills each consisting of 50 bbl/50 bbl (8 m3/8 m3) were pumped, and the loss rate decreased gradually from total losses to partial losses at a rate of 94 bbl/h [15 m3/h]. A fourth tandem pill was then pumped ensuring that no crosslink reaction or fluid loss occurred while pumping through the BHA.
With FORM-A-BLOK AS pill and FORM-A-PLUG II plug positioned in the loss zone, the operator was able to confirm well integrity and eliminate fluid losses for well control.