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Stop Leaving Solids Behind: SoluDense-M Acid Soluble Weighting Agent | Riteks

Written by Jakob Hale | Sep 22, 2026, 8:39:51 PM

SoluDense-M is a naturally occurring ore that functions as an acid-soluble weighting agent and pH buffer in drilling fluids. It offers high hardness and a low probability for generating scale versus other weighting agents including barite, calcium carbonate, and gypsum.

3.1
Specific gravity
0.0387
Absolute volume, gal/lb
100%
Active content
Acid
Soluble for cleanup

Technical specifications

AppearanceGrey to light brown powder
Specific gravity3.1
Absolute volume0.0387 gal/lb
Active content100%
pHInsoluble
Material density25.8 lb/gal, the ceiling for any weight-up using this product
Packaging80 lb paper bags; 3000 lb supersacks
Fluid systemsOBM and WBM drilling fluids
CategoryWeighting agents, Drilling Fluids Technologies

Material density is derived from the published absolute volume of 0.0387 gal/lb. Confirm all values against the current technical data sheet.

Product detail

  • Provides a unique acid soluble powder with high specific gravity
  • Offers low water solubility, high hardness, and little to no scaling
  • Workable in the full range of temperature ranges without concern of breaking down
  • Consistent product quality
  • Domestically mined and processed source
  • Formation damage reduction
  • Wellbore stabilization
  • Minimized permanent solids plugging
  • Improved fracture sealing with acid cleanup
  • Controls fluid loss at elevated temperatures
  • Acid soluble solutions
  • Acid-soluble weighting agent
  • Acid-soluble density material
  • Soluble weighting material
  • Calcium carbonate weighting agent
  • Marble powder
  • Limestone weighting material
  • Acid-soluble bridging agent

Why acid solubility matters

Whatever supplies density stays in the wellbore until something removes it. An insoluble weighting agent leaves solids in the near-wellbore region, in the filter cake, and in any fracture it was pumped into. SoluDense-M carries the density while drilling and then cleans up with acid, which is what keeps it out of the permanent solids column and off the formation damage ledger.

Related products

Drilling Fluids Technologies
S403

A high-performance weighting agent for drilling and cementing fluids.

Cementing Technologies
Hematite OG

A high grade commercial specular hematite (Fe2O3, iron oxide).

Get started with SoluDense-M

Request a sample for your next interval, or talk the application through with the Riteks Oilfield Solutions team.