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Oilfield Chemicals
Fluid Loss Control Additives
Cement slurries can lose water to permeable zones causing a number of problems, such as insufficient mud displacement, high viscosity, unwanted change of set-time, and lack of final compressive strength. Fluid loss additives reduce water loss through the cement filter cake, which makes them especially useful in squeeze cementing.
The Polytrol® FL line of products are effective fluid loss control chemicals for use in differing conditions and requirements, such as high temperatures and high salt concentrations.
Polytrol® FL 29 is a dispersing fluid loss additive
- For primary or squeeze operations through a wide temperature range up to 280 ºF
- Acts as a mild retarder
- It’s dispersing effect permits the design of low viscosity slurries. A separate dispersant may not be needed
- Compatible with all classes of cement and a wide variety of typical cement additives
- Appropriate for fresh or seawater, but not for slurries loaded with salt
- Helps to keep the horsepower low by controlling viscosity and circulation pressures
- Non-hazardous
Polytrol® FL 32 is a dispersing fluid loss additive
- Excellent filtration control and flow properties in oilwell cement slurries up to 200 ºF
- Permits the design of low-viscosity slurries
- A very mild retarder, even at temperatures as low as 100 ºF
- Specifically suited for shallow well cementing
- Outstanding performance in salt concentrations up to 18%
- Non-hazardous
Polytrol® FL 34 is a high-performance, non-retarding fluid loss additive
- Excellent fluid loss control in oilwell cement slurries up to 400 °F
- The non-retarding properties are also ideal in light cement compositions that often have extended thickening times
- Excellent performance in salt concentrations up to 18%
- Provides right angle set of cement slurries preventing gas migration into the cement column
- Non-hazardous
Polytrol® FL 45 is a high-performance fluid loss additive
- Excellent fluid loss control in oilwell cement slurries up to 400 °F
- Very mild retarder, even at temperatures as low as 100 ºF
- Specifically suited for shallow well cementing
- Excellent performance in salt concentrations up to 18%
- Provides right angle set of cement slurries preventing gas migration into the cement column
- Specially compatible with dispersants and retarders
- Non-hazardous
Polytrol® FL 56 is a high-performance dispersing fluid loss additive
- Excellent fluid-loss control in high temperature wells
- Especially effective when used in slurries with high salt concentration or slurries which may include a weighting agent
- Performs well over a wide temperature range of up to 400°F or even above
- Excellent performance in salt concentrations up to 18%
- Does not tend to increase viscosity which also makes it ideal for slurries mixed with strength-stabilizing agents such as silica flour
- In many cases there is no need for an additional dispersant
- Non-hazardous