Squeeze cementing, sometimes referred to as remedial cementing, is the process of using pump pressure to inject or squeeze cement into a problematic void space at a desired location in the well. Squeeze cementing operations may be performed at any time during the life of the well: drilling, completions or producing phases. Invariably, though, it is an operation undertaken to remedy a problem and presents the challenge of placing the proper amount of cement (or sealant) in the target location. Depending on the remediation need, squeeze cementing operations can be performed above or below the fracture gradient of the exposed formation (high pressure squeeze and low pressure squeeze, respectively).
Squeeze cementing is commonly used to
Seal thief or lost-circulation zones
Repair casing leaks
Remedy a deficient primary cement job (for instance, incomplete coverage or under-achieving top of cement)
Change the water/oil or gas/oil ratio by shutting off the breakthrough zone
Abandon a non-productive or depleted zone or the entire well
With Tuned Cementing Solutions™ cementing systems,
Halliburton has created a set of innovative fit-for-purpose
solutions with the flexibility required to allow each system
to be tuned specifically for a given set of wellbore conditions.