Case Study FORM-A-SQUEEZE LC Plug Minimizes Mud Losses
Well was drilled to TD with minor seepage losses.
The FORM-A-SQUEEZE high-solids slurry is a cost-effective solution to lost circulation in all types of fractures, vugular formations, matrix, and underground blowout events. When placed in and/or across a loss zone, the liquid phase squeezes from the slurry, rapidly leaving a solid plug behind. This process can cure losses instantly, without time or temperature dependency.
The recommended concentration of FORM-A-SQUEEZE slurry is 80 lbm/bbl [228 kg/m³] in either water-, oil-, or synthetic-based fluids. The slurry can be weighted to the desired density with barite or calcium carbonate.
The slurry should be pumped to the annulus, covering at least 50% in excess of the loss zone. The drillstring is then pulled slowly 90 ft [27 m] above the pill. The slurry should be gently squeezed in the range of 100–300 psi [6.9–20.7 bar] to the maximum of the anticipated mud weight required for the interval, holding the pressure for 10 to 20 min.
Bioassay information is available upon request. Handle as an industrial chemical, wearing protective equipment and observing the precautions described in the safety data sheet (SDS).
The FORM-A-SQUEEZE slurry is packaged in standard 40-lbm [18.18-kg] sacks. Store in a dry, well-ventilated area away from sources of heat or ignition. Avoid generating dust. Follow safe warehousing practices regarding palletizing, banding, shrink-wrapping, and stacking.