High Temperature Fluid Loss Additive

During deep and ultra-deep well cementing operations, formation water intrusion, high bottom hole temperature and high mineralized brine layers often lead to excessive slurry fluid loss, which may cause channeling, poor casing sealing and even well construction failure. Our high temperature fluid loss additive was developed to solve these common downhole construction challenges.

This range of oil well cement filtrate reducers adopts AMPS as the core polymerization monomer, modified with multiple salt-resistant functional groups. With abundant high adsorption groups distributed on the polymer molecular chain, the agent can lock free water inside cement slurry effectively, slow down the penetration of liquid phase into porous formations, and keep the whole cement system stable under harsh high-temperature and high-salt working conditions.

We have optimized formulations targeting different regional oilfield construction habits. From conventional 180℃ onshore wells to 230℃ ultra-high-temperature deep wells, we have developed tailored grades covering fresh water and brine slurry formulas, which have been field-verified in the Middle East, North America, Russia and domestic oilfields for years. All grades have passed compatibility tests with retarders, dispersants and anti-gas migration additives, so field engineers can flexibly adjust cementing formulas according to downhole parameters.

Core Advantages of Our High Temperature Fluid Loss Additive

1. Excellent High Temperature & Salt Resistance

Different models are engineered for diversified downhole conditions: FC-600S and FC-633S withstand up to 180℃, while FC-610S, FC-631S, FC-632S, FC-634S and FC-650S support continuous operation under 230℃ high temperature. Specially introduced hydrolysis-resistant molecular structures greatly improve thermal stability, avoiding performance degradation at extreme downhole temperatures. Most grades adapt to both fresh water and salt water cementing systems to meet complex offshore and inland oilfield construction demands.

2. Stable Cement Slurry Performance & Strong Compatibility

Our polymer fluid loss additive features outstanding universality across various cement slurry formulas. After dosing, the cement system maintains ideal fluidity with low free water content, no premature setting risk, and fast early compressive strength development. When matched with anti-gas migration additives, it effectively inhibits gas channeling; coordinated use with other cement additives will further optimize slurry stability and construction safety.

3. Customized Grades for Global Regional Application Scenarios

We developed targeted formulations for mainstream oil & gas markets worldwide:
● FC-600S: Widely used in domestic oilfields and the Middle East, balances temperature resistance and cost performance for conventional high-temperature cementing.
● FC-610S: 230℃ high-temperature grade for domestic deep well cementing projects.
● FC-631S / FC-632S / FC-634S: Designed for North American oilfields, equipped with moderate low-shear viscosity to enhance suspension stability and prevent solid settlement.
● FC-633S: Popular in North America and Russia, applicable for both fresh and brine slurry preparation.
● FC-650S: Modified with humic acid monomers, delivers superior suspension stability under ultra-high temperature, mainly supplied to the United States oilfield market.

Safe Physical Properties & Convenient Storage & Transportation

Most grades of our well cement fluid loss additive are white to light yellow free-flowing powder; FC-650S adopts black powder formulation. All products are water-soluble, odor-free and non-irritating. Strict MSDS safety specifications are available to guide safe handling, sealed storage in cool dry warehouses, personal protection operation and emergency leakage disposal, fully compliant with international chemical transportation and workplace safety standards.

Model Parameter & Application Range Comparison Table

Product Model	Max Temperature Resistance	Applicable Slurry System	Main Target Market	Appearance
FC-600S	180℃	Fresh Water / Brine	Domestic, Middle East	White to Light Yellow Powder
FC-610S	230℃	Fresh Water / Brine	Domestic	White to Light Yellow Powder
FC-631S	230℃	Fresh Water	North America	White to Light Yellow Powder
FC-632S	230℃	Fresh Water / Brine	North America	White to Light Yellow Powder
FC-633S	180℃	Fresh Water / Brine	North America, Russia	White to Light Yellow Powder
FC-634S	230℃	Fresh Water	United States	White to Light Yellow Powder
FC-650S	230℃	Fresh Water / Brine	United States	Black Powder

Typical Application Fields

Deep well, ultra-deep well & high-temperature geothermal well cementing
Onshore conventional oil, gas and shale well cementing projects
Offshore oilfield brine environment cement slurry construction
Oil & gas well remediation, squeeze cementing and liner cementing operations
Research laboratories for oilfield chemical formulation development

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