Oil and gas

Natural asphalt for filtration control and wellbore strengthening in OBM/SBM.

1

Designed for OBM & SBM Performance

Filtration
Control

Reduce or
Eliminate Loss
Circulation

Wellbore
Strengthening
Matrix

NAT-ASF is a natural asphalt designed for filtration control in oil-based muds and synthetic-based muds.

2

Thermoplastic Sealing Action

1. Disperse in OBM/SBM

2. Bridge pores & microfractures

3. Build thin, low-permeability filter cake

4. Support wellbore stability

Natural asphalt supports a physical sealing mechanism: particles help plug pores, microfractures, and bedding-plane openings while forming a thin protective film on the borehole wall.

3

Technical Data at a Glance

	Physical Appearance:	Dark, Fine, Powder
	Bulk Density:	1130 Kg/m3
	Particle Size:	<25 retention mesh 200
	Sieve:	75 microns
	Moisture:	<2.5%
	Softening Point:	190 C – 210 C
	Flash Point:	>220 C
	Operating Temperature:	Effective at temperatures up to 200 C
	Recommended OBM Dosage:	15 to 30 kg/m3 depending on bottom hole temperature
	Softening Point Options:	190 C, 220 C, 240 C

4

Recommended Applications

Oil-Based Muds

Designed to handle fluid-loss issues in drilling operations up to 200 C.

Synthetic-Based Muds

Compatible with synthetic-based fluids and usable across a wide range of mud density.

Water-Based Muds

Can be used in water-base muds once treated with surfactants.

Formulation testing is required before field deployment.

5

Field-Relevant Benefits

Effective multi-purpose filtration control additive for oil-based muds

Reduces or eliminates loss circulation

Provides wellbore strengthening matrix

Helps stabilize emulsions

Improves temperature stability and suspension properties

No adverse effect on mud rheology

6

Why Natural Asphalt Is Different

Challenge	Common Alternative	Natural Asphalt Advantage
Fluid loss & seepage	Synthetic polymeric fluid-loss additives	Multifunctional support: filtration control, seepage-loss reduction, and wellbore strengthening
Reactive shale & microfractures	Sulfonated asphalt / asphaltic derivatives	Physical sealing and film-forming behavior rather than relying only on chemical dispersion
High-temperature mud stability	Lower-softening asphaltic products	Softening point options: 190 C, 220 C, and 240 C
OBM/SBM emulsion stability	Separate stabilizing additives	Coats around water droplets to help stabilize emulsions and improve temperature stability

7

Research Context: Cementing Potential

Separate cementing research context — not a NAT-ASF dosage recommendation.

+53%

Compressive Strength

32%

Lower Fluid Loss

29%

Lower Porosity

76%

Lower Permeability

Reported in research using 0.04% BWOC nano-gilsonite under 100 C and 1000 psi conditions.

8

Handling & Packaging

Packaging:50 lbs. bag / 22.7 kg

Pallet:40 sacks by pallet

Storage:Dry, ventilated area

Keep away fromheat, sparks, and flames

Handle as an industrial chemicalwith protective equipment

Bioassay information available upon request. Follow MSDS precautions.

Download Info Graphic

Drilling Fluid Performance Guide

Essential technical information for applying Kuark natural asphalt in filtration control and wellbore strengthening programs.

- Physical appearance: Dark, fine powder
- Bulk density: 1130 kg/m³
- Particle size: <25 % retained on 200-mesh (75 µm)
- Moisture: <2.5 %
- Softening point: 190–210 °C (variant dependent)
- Flash point: ≥220 °C
Designed for OBM/SBM to cut fluid loss and help seal micro-fractures; stabilizes emulsions and suspension properties under temperature.
- Recommended dosage: 15–30 kg/m³ (optimize by HTHP/filter press)
- When to add: Initial formulation or remedial addition
- Where to add: Active system; compatible with cement spacer use-cases
- WBM use: Treat with surfactants before addition
  Interactive:
- Dose slider (15–30 kg/m³) + mud volume input (m³) → outputs kg required, bags (22.7 kg), and pallets (40 bags).
- Variant picker (190/220/240 °C) that updates the spec row and usage note. 5. NAT-ASF TDS (1)..
- Base fluids: Diesel, mineral oil, synthetic-based; WBM with surfactant treatment
- Operational note: No adverse effect on mud rheology (per sheet claims)
- Role synergy: Filtration control + wellbore strengthening; emulsion stability aid
- Handle as an industrial chemical; use PPE as per SDS
- Flash point ≥220 °C; avoid heat/sparks/flames
- Bioassay info available on request
- Pack: 50-lb (22.7 kg) paper sacks; 40 sacks/pallet
- Storage: Dry, ventilated; keep container closed; away from heat/incompatibles

Download Technical Sheet

Natural Asphalt for Upstream

Use natural asphalt as LCM and cement additive to cut fluid loss, stabilize shales, boost annular fill, and outperform synthetics in HPHT wells—at lower cost.