90% Hydrated Lime for Oil Drilling Fluids Calcium Hydroxide Supplier

Hydrated Lime (Calcium Hydroxide, Ca(OH)₂) with 90% minimum purity is a proven, cost-effective alkaline additive widely used in water-based and oil-based drilling mud systems for onshore and offshore oil & gas drilling projects. Sourced from our own high-calcium limestone mine, our 90% hydrated lime delivers consistent calcium ion and alkalinity supply, stabilizes downhole fluid performance, mitigates common drilling risks, and supports safer, more efficient well construction.

Key Functions in Drilling Operations

1. pH & Alkalinity BufferIt stabilizes drilling fluid pH and maintains controlled alkalinity, optimizing the performance of other mud additives. A stable alkaline environment neutralizes acid contaminants such as CO₂ and H₂S, reduces corrosion risk to drill pipes, casings and surface equipment, and protects crew safety when drilling through sour formations.

2. Shale Inhibition & Wellbore StabilitySoluble calcium ions suppress hydration and swelling of reactive clay and shale formations. It restricts shale cuttings dispersion, reduces hole collapse, sloughing and stuck pipe incidents, keeping the borehole stable during long drilling runs.

3. Contamination TreatmentEffectively treats carbonate and bicarbonate contamination that degrades mud properties. It also neutralizes cement contamination encountered while drilling out cement plugs and casing shoe tracks, restoring drilling fluid rheology and filtration control.

4. Emulsifier Activator for Oil-Based MudIn invert emulsion oil-based drilling fluids, hydrated lime participates in saponification reactions to activate fatty acid emulsifiers, strengthening emulsion stability and improving the sealing performance of oil mud systems.

5. Flocculation for Bentonite Spud MudIt works as a flocculant for bentonite slurry, assisting cuttings settlement and improving hole cleaning efficiency in surface drilling sections.

Our 90% Hydrated Lime Product Advantages for Drilling

✅ Guaranteed ≥90% Ca(OH)₂ active content: Stable available lime grade, low acid-insoluble residue, less inert impurities that will not damage mud rheology 

✅ Controlled particle fineness: Uniform powder, fast dispersion in mud tanks, avoids agglomeration and uneven dosing 

✅ Consistent batch quality: Raw ore from our owned mine, closed production process, reliable long-term supply for oilfield chemical vendors and mud service companies

✅ Economical alkaline source: Lower total cost versus many specialty pH regulators, suitable for large-volume continuous dosing 

✅ Custom packaging & mesh options: Available in bulk, jumbo bags and small sacks; 200/325 mesh and other particle sizes on request

Typical Application Guidance

• Widely compatible with lime mud systems, gypsum mud, bentonite spud mud and invert emulsion oil-based mud

• Field dosage depends on formation conditions, contamination level and target alkalinity; recommended to perform lab mud testing before bulk addition

• Store in dry, sealed conditions to avoid carbonation and activity loss

Who We Supply

We export 90% hydrated lime directly to drilling fluid suppliers, oilfield service companies, mud labs and chemical distributors across global oil regions. We provide COA, TDS, MSDS and technical support for formulation adjustment.

If you need a stable 90% hydrated lime supplier for your drilling mud portfolio, contact us today for samples, pricing and full technical documentation.

On www.cncalcium.com, we specialize in supplying different purity calcium hydroxide and calcium oxide products that are suitable for a wide range of applications, including the chemical, environmental protection, and agricultural sectors. If you're interested in learning more about calcium hydroxide (slaked lime) and calcium oxide(quick lime), please feel free to visit our official website at www.cncalcium.com.