Cement is pumped down the wellbore through the casing and selectively squeezed into existing fractures and weak zones in the surrounding formation. The cement enters these fractures under controlled pressure, fills the voids, and seals them after setting.
This process is performed in multiple stages along the well to
Seal fractures and loss zones
Isolate geological layers
Stop fluid or gas migration
Restore well integrity
Unlike hydraulic fracturing, which creates fractures to enhance production, squeeze cementing is a remedial operation aimed at closing fractures and providing effective zonal isolation.
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