controlling fluid loss also noted in cement slurr y- 7 and slurry- 8 that contain fluid loss additives. This reduction is caused by the building of a filter cake, whose thickness depends on its own permeability. The oil well cement is mixed with water and other additives like dispersant, accelerator, deformer, retarder, fluid loss additive and loss circulation materials for their specific properties in cement slurry (Bayer and Knarr 2012). For more than 20 years, fluid loss control agents have been added to oil-well cement slurries and it is now recognized in the industry that the quality of cementing jobs has significantly improved. It is available as a powder or a 20%\nsolution (Halad®-567L additive). 426 fluid loss additives products are offered for sale by suppliers on Alibaba.com, of which petroleum additives accounts for 34%, electronics chemicals accounts for 2%, and paper chemicals accounts for 2%. Halad-766 fluid-loss additive is extensively used to retard foam slurries without reducing viscosity. This page was last edited on 25 June 2015, at 13:39. UFL-301. There are following 10 types of additives of cementing: accelerator, retarder, defoaming agent, drag reduction agent (dispersant), fluid loss additives, anti-gas migration agent, spacer fluid, latex, reinforcing agent and weighting agent. A fluid-loss test determines the relative effectiveness of a cement slurry to retain its water phase or to lose a portion of its water phase as a filtrate to the formation. Now Fluid Loss Control Agents are recognized in the industry that the quality of cementing jobs has significantly improved. When a fluid loss additive is included in a cement slurry design, it will help maintain desired characteristics and properties such as rheology, thickening time, density and compressive strength. It is designed to be used at circulation temperatures up to 104°C (220°F) in low density and high salt content cement slurries. ","path":"/content/dam/ps/public/cem/contents/Chem_Compliance/web/H01499-A4.pdf","docCreatedDate":"2018-10-02T11:33:01.454-05:00","modifiedDate":"2007-08-24T23:30:00.000-05:00","publishDate":"2018-10-02T11:33:01.454-05:00","docdate":"2007-08-01T23:30:00.000-05:00","docrefNum":"H01499","languageSet":["English"],"accessType":"P","dataSearch":"custchallenges:Fluids_Challenges:Fluid_Loss,|locations:Global,|prodgroups:Cementing:Cementing_Chemistry:Fluid_Loss,Cementing:Materials_Chemicals_&_Additives:Dispersants,"},{"title":"Halad®-413","description":"Halad®-413 fluid-loss additive can provide excellent fluidloss\ncontrol in high-temperature wells, especially when used\non densified cement slurries or slurries mixed with high salt\nconcentrations. A fluid-loss additive made from synthetic polymer technology which is compatible with salt, seawater, and CaCl2 and effective up to 350°F (176.7°C) without over-retarding at temperatures as low as 80°F (26.7°C); it is not a strong dispersant so it can be used in normal and heavyweight slurries. Materials. ","path":"/content/dam/ps/public/cem/contents/Chem_Compliance/web/H01330.pdf","docCreatedDate":"2018-10-02T11:33:18.788-05:00","modifiedDate":"2008-06-23T23:30:00.000-05:00","publishDate":"2018-10-02T11:33:18.788-05:00","docdate":"2008-06-23T23:30:00.000-05:00","languageSet":["English"],"accessType":"P","dataSearch":"locations:Global,|prodgroups:Cementing:Cementing_Chemistry:Fluid_Loss,Cementing,Cementing:Cementing_Chemistry,"},{"title":"Halad®-447 Additive A-4 ","description":"Halad®-447 is a fluid-loss additive containing polyvinyl alcohol. When mixed with Class H cement powder, water, a dispersant and defoamer, this non-ionic, low viscosity producing additive will prevent fluid from being lost to the formation in intermediate cementing operations. API fluid loss values on neat cement slurries (where practically measurable) lie well above l000 mL. These costs resulted from non-productive time, remedial operations expenses and fluid-replacement costs and ranged from $120,000-$170,000 (USD) on individual wells. Halad-766 fluid-loss additive is a derivitatized cellose that can be used for fluid loss and retardation in all API cement classes as well as Pozmix® cement. The action of FLAs depends on their solubility. Halad®-200L Fluid Loss Additive Helps control fluid loss, viscosifies the slurry, does not retard the cement set, is salt-tolerant up to saturation, and is effective as low as 100°F (37.8°C) and higher than 400°F (204.4°C). 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