DESCRIPTION

Inhibisal Ultra CS-135 is a water miscible liquid additive containing choline chloride, which is used as a substitute for potassium chloride in drilling, workover, completion, and fracturing fluid applications.   Inhibisal Ultra CS-135 is typically used in amounts ranging from 0.5 to 10.0 gal/1,000 gal (0.5 to 10.0 L/m³) depending on the amount of potassium chloride being replaced, the quantities of shale and clay present in the well bore, and the operation being performed.  A concentration of 1.0 gal/1,000 gal (1.0 L/m³) of Inhibisal Ultra CS-135 will provide an equivalent to 2.0% potassium chloride.  Inhibisal Ultra CS-135 packaging can be customized to meet specific requirements.

FEATURES

• Clay stabilizer
• Additive for drilling, workover, completion, and fracturing fluid applications
• Solution does not affect fracturing fluid crosslink properties
• Compatible with anionic and nonionic surfactants

PHYSICAL PROPERTIES AND ENVIRONMENTAL DATA

Appearance:                                                      Clear liquid
Specific Gravity:                                                 1.08 - 1.13
Pour Point, ASTM D97:                                      -40°C (-40°F)
Flash Point, ASTM D56:                                    >93.3°C (200°F)
pH, Neat:                                                           6.5 - 9.5
Solubility:                                                          Water
LC50, 96-hour:                                                  >1,000,000 ppm
Chemical Oxygen Demand:                                 2,670 mg/L
Biological Oxygen Demand:                               >1,791 mg/L
D50 - Microtox Testing:

Test	EC20	EC50	PASS/FAIL
MTX - Threshold MTX - Confirmation @ 146 L/m3	62 L/m3 (33 - 120)   48% (32 - 73)	160 L/m3 (110 - 230)   >91%	not applicable   PASS

SHALE STABILITY INDEX (%) FOR POTASSIUM CHLORIDE & INHIBISAL ULTRA CS-135

Potassium Chloride			Inhibisal Ultra CS-135
3%	5%	7%	3%	5%	7%
88.02	87.03	89.86	87.96	90.70	90.70