
Key Features of HTHP Filter Press 175 ml
- Mud sample cup with through-hole for precise sample placement.
- Insulated heating jacket ensuring high thermal efficiency.
- Compact design suitable for both laboratory and field testing.
- Compatible with drilling fluids and cement slurry evaluations.
- Complies with international standards including API specifications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Power Supply | 220 V ± 5 %, 50 Hz |
| Power Rating | 400 W |
| Working Temperature | Up to 232 °C |
| Working Pressure (Mud Cup) | 4.2 MPa (600 PSI) |
| Back Pressure | 0.7 MPa (100 PSI) |
| Effective Filtration Area | 22.6 cm² |
| Maximum Cup Pressure | 6 MPa (870 PSI) |
| Mud Sample Cup Capacity | 175 ml |
| Gas Source | Nitrogen or CO₂ |
| Dimensions | 530 × 465 × 334 mm |
| Gross Weight | 36 kg |
Principle of Operation
The instrument measures filtrate volume and mud cake thickness over a 22.6 cm² area, providing precise data on drilling fluid behavior. This ensures fluid formulations maintain their stability, sealing ability, and lubrication efficiency under high-stress drilling conditions.
Major Components
- Principal machine assembly
- Mud sample cup with/without through-hole
- Heating jacket with insulation
- Pipe-manifold assembly
- Filtrate receiver package
- Electrical temperature-control system
- Tee coupling and high-pressure connections
Safety Guidelines
The HTHP Filter Press is engineered with operator safety as a priority. Following these practices ensures accuracy and long equipment life:
Release Residual Pressure before opening the mud cup to avoid sudden fluid ejection.
Use only Nitrogen or CO₂ as gas sources; avoid oxygen or reactive gases.
Gradually increase pressure to prevent damage to filter paper and gauges.
Monitor heating jacket to avoid overheating and equipment stress.
Wear PPE including gloves, goggles, and lab coats during testing.
Maintenance Recommendations
Regular inspections of O-rings, hoses, and seals for leaks.
Lubricate moving parts for smooth operation.
Replace filter paper before each test to maintain accuracy.
Check electrical controls periodically for safe operation.
Store in clean, dry environment to prevent corrosion.
These practices reduce downtime and ensure long-term performance of the HTHP Filter Press.
Accessories Supplied
- Graduated cylinder (25 ml)
- HTHP filter paper (988 type)
- Pipe-manifold assembly
- Hex and adjustable wrenches
- O-rings and cup seat
- High-pressure hose (≥15 MPa)
- Thermometer (0–200 °C)
- Tee coupling
Applications
The HTHP Filter Press is a versatile tool used in multiple oilfield and laboratory applications, such as:
Fluid loss testing in water-based and oil-based drilling fluids.
Cement slurry filtration studies.
Mud cake evaluation under extreme temperature and pressure.
Petroleum research laboratories for drilling fluid optimization.
Compliance
This equipment complies with:
API standards for high temperature high pressure filtration testing.
JB/T 9329-1999 guidelines for safe storage and transportation.

