Solids Control Systems for Oil & Gas Drilling Operations
The ZC series Solids Control Systems from Shaanxi Zhongcheng Machinery serve as essential equipment for oil drilling rigs ranging from ZJ10 to ZJ90 series. Our system removes undesirable solid particles from drilling fluid while maintaining stable mud properties, directly optimizing drilling pump performance and boosting overall drilling efficiency. With modular design featuring multi-stage purification, our equipment achieves over 90% drilling fluid recycling rates and reduces single-well operating costs by 15%-25%. The skid-mounted configuration ensures rapid deployment across extreme environments, while electrical protection grade meets IP55 standards, backed by ISO 9001/14001/45001, TÜV, and BV certifications.

Why Your Drilling Operation Needs Advanced Solids Control
When you're managing drilling projects, maintaining fluid quality directly impacts your bottom line. Our system tackles three critical challenges you face daily.
First, harmful solids like rock cuttings and sand particles constantly degrade your drilling fluid. This increases viscosity unpredictably and accelerates drill bit wear. Research shows that every 1% reduction in solids content can improve your drilling speed by approximately 10%.
Second, traditional mud disposal creates significant cost burdens. Our closed-loop circulation reduces waste slurry discharge by 200-400 m³ per well compared to conventional processes. This translates to tangible savings in both mud preparation and hazardous waste treatment.
Third, operational safety remains paramount. Excessive solids increase risks of stuck pipe, lost circulation, and wellbore collapse. Our multi-stage separation prevents these costly downhole accidents, protecting both your personnel and project timeline.
Technical Specifications and Configurations
Our Solids Control Systems deliver measurable performance through precision-engineered components:
| Rig Model |
ZJ10 |
ZJ20 |
ZJ30 |
ZJ40 |
ZJ50 |
ZJ70 |
ZJ90 |
| Drilling fluid tank (m³) |
80 |
120 |
165 |
180 |
200 |
270 |
330 |
| Reserve tank (m³/h) |
/ |
/ |
80 |
80 |
120 |
160 |
200 |
| Shale shaker (m³/h) |
60×2 |
60×2 |
90×2 |
120×2 |
140×2 |
140×3 |
160×3 |
| Degasser (m³/h) |
√180 |
√180 |
√180 |
√240 |
240/270 |
300 |
360 |
| Desander (m³/h) |
120 |
120 |
180 |
180 |
200 |
240 |
240 |
| Desilter (m³/h) |
√120 |
120 |
180 |
180 |
200 |
240 |
240 |
| Mid speed Centrifuges (m³/h) |
/ |
√40 |
√40 |
√40 |
50 |
50 |
60 |
| High speed Centrifuges (m³/h) |
/ |
/ |
/ |
/ |
√40 |
40 |
40 |
| Jet Mixer device (m³/h) |
150 |
200 |
200 |
200 |
200×2 |
200×2 |
200×2 |
| Gear pump (m³/h) |
/ |
155 |
155 |
155 |
155 |
155 |
155 |
| Grouting pump (m³/h) |
/ |
100 |
150 |
180 |
200 |
240 |
240 |
| Note |
√ : Optional / : Not configured |
The system integrates shale shakers, vacuum degassers, desanders, desilters, and decanter centrifuges. Each stage targets specific particle sizes, ensuring thorough purification from 74 microns down to 2-5 microns.

Versatile Applications Across Drilling Sectors
Your project demands determine the ideal system configuration. We've engineered solutions for diverse scenarios:
Oil & Gas Exploration: In deep-water or high-pressure high-temperature (HPHT) wells, our system maintains closed-loop mud cycles. This proves crucial for wellbore stability and preventing blowouts caused by gas-cut mud.
Horizontal Directional Drilling (HDD): Urban trenchless projects benefit from our compact layout. You'll recycle expensive bentonite slurry while minimizing environmental footprint and logistics costs associated with mud hauling.
Shield Tunneling & Diaphragm Wall Construction: Large-scale infrastructure projects require mega-capacity systems. Our equipment handles massive volumes of high-density slurry, separating large rocks and fine silts simultaneously under complex geological conditions.
Geothermal & Water Well Drilling: The anti-corrosion and wear-resistant design adapts to harsh drilling environments. Skid-mounted connections facilitate convenient relocation between well sites, reducing your mobilization time.
Enterprise-Grade Advantages That Protect Your Investment
Zhongcheng Machinery brings over 30 years of manufacturing expertise to every system. Our 6,300-square-meter production facility in Xingping City delivers approximately 200 complete mud circulation systems annually.
Modular Design Philosophy: You'll appreciate the flexible combination options. Multi-stage purification adapts to changing drilling conditions without complete system overhaul. The compact layout reduces your site footprint requirements significantly.
Built for Extreme Conditions: Anti-corrosion treatments and wear-resistant materials extend service life in polar regions, deserts, and offshore platforms. All components undergo 24-48 hour continuous factory acceptance testing (FAT) before shipment.
Quality Assurance Protocol: We implement rigorous inspection covering dynamic balancing tests for centrifuge bowls, G-force verification under load, and hydrostatic pressure testing at 1.5x operating pressure. Coating surfaces meet Sa 2.5 sandblasting standards with NACE-compliant protection against H2S and saltwater corrosion.
Rapid Deployment Capability: Factory-direct pricing combines with fast delivery schedules. In-stock products ship within 3 days, while customized configurations deliver within 15 days through our efficient logistics network via Tianjin and Shanghai ports.
Comprehensive Support From Design to Commissioning
Your project success depends on more than equipment quality. We provide complete technical support packages including:
- Engineering drawings and process flowcharts tailored to your rig specifications
- Detailed component diagrams for maintenance planning
- Operation and maintenance manuals in your preferred language
- On-site installation guidance and commissioning services
- Industry-specific training for your operators
- One-year comprehensive warranty coverage
Our professional service team delivers complete project solutions. You'll receive ongoing technical guidance to optimize system performance throughout the equipment lifecycle.
Transport-safe packaging includes plastic film, rainproof tarpaulins, and secure strapping. We provide pallets or wooden crates based on your specific equipment requirements and shipping destination.

Q1: How do I select the correct screen mesh size for my drilling conditions?
A: You should base selection on API RP 13C cut point and conductance requirements. Consider your specific flow rate and mud type to balance effective solids removal with acceptable fluid loss. Our technical team can calculate optimal specifications for your application.
Q2: Why include a vacuum degasser in the system?
A: The degasser removes small entrained gas bubbles that shale shakers cannot capture. This prevents dangerous mud density decreases that could lead to loss of primary well control. It's essentially your safety stage.
Q3: What distinguishes desanders from desilters?
A: Desanders utilize 8-12 inch hydrocyclone cones to remove particles in the 45-74 micron range. Desilters employ 4-inch cones targeting finer 15-44 micron particles. Sequential staging ensures comprehensive separation.
Q4: Can your systems handle oil-based mud (OBM)?
A: Yes, our specialized configurations include high-G drying shakers and vertical cuttings dryers. These meet stringent 'oil-on-cuttings' environmental limits required for OBM operations.
Q5: What are critical wear parts requiring regular inspection?
A: For decanter centrifuges, monitor the screw conveyor's tungsten carbide tiles, solids discharge port, and main bearings. For shale shakers, check screen panels and vibration motor bearings. We provide detailed maintenance schedules with every system.
Q6: How does the system ensure compliance with environmental regulations?
A: Our closed-loop design minimizes waste discharge while the integrated mud recovery unit enables compliant disposal of hazardous components. This fully aligns with green drilling standards and helps you meet regulatory requirements.

Contact Us for Custom Solutions
Ready to optimize your drilling operation? ZC Solids Control team will design the ideal configuration for your specific rig series and geological conditions.
Contact: oliver@zcgukong.com