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Published: 09/01/2015
Client operating personnel met with M-I SWACO engineers in search of a technical alternative to properly seal the loss zone and to continue with normal operations. The Solution M-I SWACO recommended the use of a FORM-A-SQUEEZE pill to seal the zone where the partial lost circulation occurred. A 50-bbl, 1.31 SG (10.9 lb/gal) FORM-A-SQUEEZE pill consisting of diesel, FORM-A-SQUEEZE additive, and calcium carbonate was prepared and blended. Having the bit at 5905 ft (1800 m), 40 bbl of FORM-A-SQUEEZE pill was pumped. Pressure: 600 psi, displaced at 800 strokes per min Lifted bit to 5459 ft (1664 m), circulated at a low flow rate of 10 strokes for 5 min; then pumping was suspended, annular preventor was closed, satisfactorily repressurizing with 200 psi for 10 min Pressure was discharged to zero; annular preventor was opened and initially circulated at a low flow rate. The flow rate was gradually increased until initial The 12¼-in section was taken to bottom, circulated at a low flow rate, increasing little by little until reaching and maintaining 540 gal/min, and continued
Client operating personnel met with M-I SWACO engineers in search of a technical alternative to properly seal the loss zone and to continue with normal operations.
M-I SWACO recommended the use of a FORM-A-SQUEEZE pill to seal the zone where the partial lost circulation occurred. A 50-bbl, 1.31 SG (10.9 lb/gal) FORM-A-SQUEEZE pill consisting of diesel, FORM-A-SQUEEZE additive, and calcium carbonate was prepared and blended.
After pumping the FORM-A-SQUEEZE pill:
“When a partial lost circulation was experienced during Operator
Challenge: Partial lost circulation at a rate of 11 m3/hr (69.2 bbl/hr) was observed.
Solution: Use of a FORM-A-SQUEEZE pill to seal the zone where the partial lost circulation occurred.
Results: Waiting times were eliminated and operations costs were reduced.
Prevent lost circulation in fractures, vugular formations, matrix, and underground blowout events.
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