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ExtendCem C 50

ExtendCem C 50

This is a stabilized expanding plugging cement made on the basis of Portland cements, active polydisperse siliceous additives and expanding components. If necessary, fluid loss indicators, rheological parameters can be modified, reinforcing properties can be added etc.

PHYSICAL PROPERTIES

Physical form: powder, gray to dark gray color
Water solubility: partial

PROPERTIES OF CEMENT STONE

Compression strength at 50°C after 24 hours is not less than 20 MPa
Thickening time at 50°C – adjustable

PACKAGING AND STORAGE CONDITIONS

ExtendCem C 50 is packed in soft containers weighing up to 1 ton, equipped with a triple polyethylene liner. The product should be stored in a dry place on pallets, away from moisture, open flames and heating appliances. After the bag has been opened, it must be carefully closed to avoid damage to the product.
The shelf life of the product is not less than 12 months.

CHEMICAL SPECIFICATION

ExtendCem C 50 is a multi-component mixture of materials, predominantly of inorganic origin

ADVANTAGES

Improving the adhesion properties of the cement slurry, improving the bond quality of the casing / formation contact.
Devised for high-quality abhesion of productive formations in the intervals from 15 to 50 ° С and prevention of behind-the-casing flows.
Has an expansion effect that provides maximum filling of the annular space.

RESTRICTIONS CONCERNING THE USAGE

Operating temperature range: from 15°С to 50°С

USAGE

ExtendCem C for cementing technical and flow strings in moderate temperature intervals with the technological need to expand the cement stone.

 

ExtendCem C, in the process of cement stone formation, activates its crystalline growth, which levels up the shrinkage and allows filling the annulus to the maximum. This effect has a positive effect on both the quality of the isolation and the well logging results.

ExtendCem C is characterized by high sedimentation stability, reduced water loss and low permeability, which has a favorable effect on the cementing interval results