Use SX-Plus drilling fluid additive for shale inhibition and wellbore stabilization. It is ideal for reducing fluid loss at high temperatures and has excellent sealing characteristics. Minimizes differential pressure sticking and decreases friction and wear.
SX-Plus™ Drilling Mud/Fluid Additive



Sized particles for durable sealing

to reduce fluid loss

Solid Solutions for Fluid Loss at High Temperatures


SX-Plus® technology provides a thermally stable fluid-loss additive for high-temperature wells. Based on extensive lab tests and field applications, it is known that a specific particle size will seal the face of porous sands and other formations helping to reduce the differential pressure transfer. SX-Plus® graphitic particles with a PSD ranging from 40 mesh to >200 mesh (425 to >75 microns) are classified in that specific size range to effectively reduce fluid loss.

SX-Plus® products have very high melting points unlike resins or gilsonite-based products. This carbon-based material has been treated at temperatures of over 600°F (315°C) providing excellent thermal stability downhole.



  • Enhances fluid loss reduction
  • Enhances shale inhibition
  • Excellent sealing characteristics
  • Controls seepage loss in weighted systems
  • Wall cake conditioner
  • Minimizes differential pressure sticking
  • Decreases friction and wear


  • Compatible with other drilling fluid additives
  • Minimizes damage to production zones
  • Broad range particle size distribution
  • Non-polluting, non-sheening
  • Does not alter mud rheological properties
  • Does not foam
  • Greatly improves lubricity of fluid
  • Mixes easily on location
  • Exceeds LC50 Requirements


Physical Properties

  • Specific gravity: 1.5
  • Color: Black/Gray
  • Appearance: Free flowing graphitic particles
  • Flash point: >350°F (>177°C)
  • Melting point: >500°F (>260°C)
  • Solubility: Negligible in water or oil

Recommended Treatments

  • Preventive maintenance or moderate loss: 4 to 5 ppb (11.41 kg/m3 to 14.27 kg/m3)
  • Excessive or abnormal loss: 6 to 8 ppb (17.12 kg/m3 to 22.82 kg/m3)
  • Adjust treatment to conditions or pilot test


  • SX-Plus® is available in 50-pound bags (22.6 kg).






To order SX-Plus® or for more information, call 713-690-3939 or e-mail us.

For more information, call 713-690-3939 or e-mail us.