ADVANTAGES
• Cement accelerators are used to save time, which reduces the drilling rig costs.
• Cement accelerators are also used to improve the properties of the cement slurry. By achieving a more rapid set time, problems like filtration loss and gas migration are minimized

APPLICATION
• The delayed release of calcium chloride allows it’s usage on long liners and casing strings to achieve more rapid strength development at the top of cement where the temperature is much lower.
• The delayed release of calcium chloride can be used to enhance the strength development of shoe joints for more rapid drill-out.
• The concentration used should be in the range of 1 to 2 percent active material to accomplish faster set times and more rapid strength development.
• Testing will need to be completed with the actual cement slurry selected for the job conditions.

PROPERTIES
• White to Off-White Granules
• Specific Gravity – varies with coating level
• Bulk density – varies with coating level
• Partially soluble in water
• Release profile for EnCap-CC, 20% at various temperatures see FIGURE 1
• Release profile for EnCap-CC, 36 % at various temperatures see FIGURE 2
•Thickening times at 200°F see TABLE 1

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Table 1
Additive	Thickening Time, h:mm
none	3:37
1% CaCl2	2:12
1.6% EnCap-CC, 20%	2:37
2.0% EnCap-CC, 36%	2:55

Class H cement, 4.3 gal. of water/sk, 0.4% by weight of cement lignosulfonate cement retarder
The thickening times were conducted at BHCT of 200°F. Both mixing procedure and HTHP
paddle were modified to allow addition of EnCap-CC into the slurry. EnCap-CC was added after
stirring on the Waring blender by stirring with a spatula. The mixing paddle on the slurry can was
modified to prevent the granular EnCap-CC from catching between the paddle and the slurry can