Unitech Chemicals is a professional manufacturer of drilling fluid additives, specializing in high-performance water-based drilling fluid (WBM) solutions for global oilfield applications.
We provide engineered additive systems for high-temperature, high-salinity, and complex drilling environments, supporting stable performance and efficient drilling operations.
API & ISO certified manufacturing
Customized formulation based on formation conditions
Laboratory testing & optimization (24–48h response)
COA / SDS documentation support
Stable global supply capability
We supply WBM solutions to:
International oilfield service companies (SLB, Halliburton, Baker Hughes, etc.)
Drilling fluid service companies & engineers
Oil & gas procurement and technical teams
Water-based drilling fluids often face performance challenges in high-temperature, high-salinity, and reactive shale formations, leading to instability, inefficiency, and increased operational risks.
| Challenges | Impact | Solutions |
| High Temperature Degradation | Viscosity loss | High-temp polymers (up to 180°C) |
| Salt & Calcium Contamination | Instability | Salt-resistant systems |
| Poor Rheology Control | Torque & drag | Optimized viscosifiers |
| Fluid Loss | Formation damage | PAC & starch systems |
Water-based drilling fluid is a drilling mud system where water serves as the continuous phase. It is designed to perform multiple critical functions during drilling operations, including cuttings transport, wellbore stabilization, pressure control, and cooling/lubrication of drilling tools.
Carry drill cuttings to the surface
Maintain hydrostatic pressure
Stabilize shale formations
Reduce friction and torque
Control filtration loss
Base Fluid (Water)
Viscosifiers (PAC, modified starch)
Fluid Loss Control Additives
Shale Inhibitors (KCl, PHPA)
Lubricants
Weighting Agents
| Project | Shale Gas Drilling |
| Challenge | High salinity & wellbore instability |
| Solution | Customized salt-resistant WBM system |
| Results | 35% fluid loss reduction |
| Improved stability | |
| Reduced NPT | |
| Higher drilling efficiency |
| Feature | Water-Based | Oil-Based |
| Environmental Impact | Low | High |
| Cost | Lower | Higher |
| Lubricity | Moderate | Excellent |
| Formation Stability | Moderate | High |
| Application | General wells | Complex wells |
| Parameter | Typical Range | Engineering Significance |
| API Fluid Loss | ≤ 10 mL | Controls filtration and formation protection |
| Density | 8.5-18 ppg | Balances formation pressure |
| pH Level | 8.5-10.5 | Maintains chemical stability |
| Viscosity (cP) | Adjustable | Ensures effective cuttings transport |
| Gel Strength | Controlled | Supports suspension capability |
Environmental friendliness, cost efficiency, and wide applicability.
PAC and modified starch are commonly used.
WBM uses water as base fluid, while OBM uses oil, offering better lubrication but higher environmental impact.
Yes, with proper additives, WBM can perform up to 180°C.
Yes, our formulations are designed to match or exceed the performance of leading oilfield chemical suppliers while offering cost advantages and stable supply.
