Fluid Loss Additives

Riteks RFL-1 is a non-retarding low temperature fluid loss / gas migration additive designed to decrease the permeability of a cement slurry while increasing the overall durability and flexibility of the system. This additive is highly effective at exceptionally low loadings and works particularly well in lower temperature applications and small grind cements.

Riteks RFL-4 is a fluid loss additive that consistently  improves viscosity, water retention, and suspension. Lead Cements under 13 ppg commonly use Riteks RFL-4 which helps maintain rheological hierarchy in thin lightweight cement slurries.

Riteks RFL-4 is ideal for circulating long columns of cement slurry on primary casing jobs and for deep liner cementing. It helps fluidity maintenance, premature dehydration elimination, and annular bridging prevention. Most additives used in cementing are compatible with Riteks RFL-4 and provides good frictional properties during displacement.

Features and Benefits

• Controls fluid loss of cement from 80 to 360 F BHCT
• Offers better control of slurry downhole by helping eliminating premature dehydration
• Functions effectively in slurries containing up to 18% NaCl of 5% KCl
• Helps protect water sensitive shales and can reduce premature bridging in annuli, which may be caused by dehdration
• Can reduce slurry water losses, thus maintaining more consistent viscosities and circulating pressures
• Helps control gas leakage while cementing is setting
• Helps reduce premature dehydration in tubing and casing while perforations are squeezed

Riteks RFL-9 is a dispersing and retarding fluid loss additive for all API classes of cement. Riteks RFL-9 is an effective fluid loss additive in primary, remedial, and squeeze cementing, and can be used in bottom hole circulating temperatures (BHCT’s) between 60° and 300°F (15.5°and 149°C).

Features and Benefits

• Useful in primary and remedial cementing applications
• Can lower equivalent circulating density due to its dispersing nature
• Lengthens total thickening time
• Helps to promote bonding
• Can be blended in dry cement or pre-hydrated in the mix water
• Can alleviate horsepower requirements of surface equipment
• Works well in water sensitive formations
• Works well with most suspension and viscosifying products

RFL-70X is a cementing additive that controls flow and fluid loss properties at bottom-hole circulating temperatures up to 210°F (99°C). Typical loading levels of up to 1 percent is normally sufficient at temperatures between 75°F and 200°F (24°C to 93°C) to help reduce fluid loss to 50cc. At temperatures up to 350°F (177°C), this additive can also provide free water control, chemical resistance, shear bonding properties, and thermal shock reduction.

Features and Benefits

• Provides a slight increase to cement viscosity and gel strength, which helps reduce free water, settling, and sedimentation
• Helps prevent fluid loss and gas migration in most API and lightweight commercial cements
• Little to no effect exhibited on low temperature cement retardation
• Improved bonding can be achieved with low loadings
• Provides improvements to cement with enhancing durability, as well as improves bond strength and sheer bond strength for the life of the well
• Consequently, shear bonds have an increased resistance to thermal cycling
• Improvement to cement flexural strength
• Cement slurries containing RFL-70X are more resistant to acids and brines