Digital & Intelligent Coal Bed Methane Drilling Rig

Technical Specifications – Digital Intelligent CBM Drilling Rig (HFMZJ Series)

Our digital intelligent coal bed methane drilling rigs (HFMZJ series) are available in four capacity classes covering 600 to 2,000 meters drilling depth. All models feature full‑hydraulic drive, dual PLC intelligent control, PV75 digital monitoring, and AI lithology identification capability.

HFMZJ Series Specifications

AI Control System Performance (Based on Verified Research)

Based on peer‑reviewed research "Design of Intelligent Drilling Rig Control System for Coalbed Methane Mining Based on Lithology Identification," published in 2025.

Digital System Specifications

Product Types – Digital Intelligent CBM Drilling Rig Configurations

We offer digital intelligent coal bed methane drilling rigs in three mounting configurations and four digital intelligence levels to match your field development plan and automation requirements.

Mounting Configurations

1. Truck‑Mounted Digital Intelligent CBM Rig – All components (power unit, mast, drawworks, air compressor, mud pump, foam pump) installed on a heavy‑duty truck chassis. Maximum road speed ~70 km/h. Drilling depth: 600‑2,000 meters. Ideal for multi‑well pad development where rig moves between wellheads every few days. Excellent mobility, low transportation cost. Fully equipped with dual PLC control and PV75 monitoring.

2. Skid‑Mounted Digital Intelligent CBM Rig – Modular construction on skids, assembled at the wellsite. Drilling depth: up to 2,000 meters. Suitable for longer‑duration CBM production wells where the rig remains on location for weeks or months. Offers higher stability and larger mud capacity.

3. Crawler‑Type Digital Intelligent CBM Rig – Self‑propelled on steel or rubber tracks. Ideal for rugged terrain, swampy areas, or environmentally sensitive sites where road transport is restricted. Equipped with top drive and telescopic mast. Low ground pressure (typically <5 PSI) — no gravel pads required over coal seams. For shallow to medium CBM wells (<1,500 m).

Digital Intelligence Levels

Applications – Where Digital Intelligent CBM Drilling Rigs Deliver Value

Our digital intelligent coal bed methane drilling rigs have been deployed in CBM basins across the globe:

• China – Qinshui Basin, Ordos Basin – The heart of China’s CBM production. Our intelligent rigs reduce coal cleat damage through AI‑optimized drilling parameters, directly improving gas production rates. Field validation using 28 measured data sets confirmed zero misjudgment rate for lithology identification.

• Australia – Surat Basin, Bowen Basin – Major CBM‑to‑LNG projects. Our rigs meet stringent environmental standards and provide remote monitoring from Brisbane‑based operations centers. The dual PLC architecture and failsafe design ensure continuous operation.

• India – Gondwana Basin – Emerging CBM market poised to become the world’s fifth largest. Our intelligent rigs are ideal for shallow‑medium depth CBM development, with fast move capability between wells.

• United States – Powder River Basin, San Juan Basin – Established CBM fields. Our rigs offer an upgrade path from conventional to digital intelligent drilling with full API certification.

Why Choose SJ Petro for Your Digital Intelligent CBM Drilling Rig?

• Sinopec‑backed digital engineering – As a direct subsidiary of China’s largest oilfield equipment group, we have 314 R&D engineers, 2,100+ precision machines, and a 180,000+ m² manufacturing campus. Our control engineers write the PLC source code—no black‑box third‑party software. The double digital journey of rig modernization and ESG digitalization are not separate tracks; they converge in the digital ecosystem of our automated drilling platform.

• Kingdream collaboration – 40+ years of downhole expertise – Kingdream (江钻) is a Sinopec group company with over 40 years of specialized downhole tool manufacturing history. Recognized as a national high‑tech enterprise and a leading oil drill bit manufacturer in China—one of the world’s most advanced in the industry—Kingdream has developed comprehensive functional products including directional drilling series, core bit series, impregnated bit series, and drilling series for various formations. Through this collaboration, we bring world‑class downhole expertise to surface automation, creating an integrated intelligent drilling system from bit to top drive.

• API & ISO certified – Our drilling rigs are manufactured under API 4F, 7K, and 8C standards. Third‑party inspection (ABS, DNV, BV, SGS) is always welcome.

• Verified AI control system – Our intelligent control system is based on peer‑reviewed research validated in field applications with zero misjudgment rate and demonstrated improvements in response speed (2x faster) and stability.

• Full‑hydraulic drive for formation protection – Smooth, stepless control of WOB and RPM eliminates shock loads that can damage coal cleats. Our rigs excel in delicate CBM environments.

• Complete digital thread – From real‑time sensor data to cloud historian to automated IADC reporting, every piece of drilling data is captured and made actionable. No manual data entry, no lost information.

• Retrofit‑friendly – Not ready for a full digital intelligent rig? We can upgrade your existing CBM rig with our dual PLC control system, PV75 monitoring, and AI lithology identification module.

• Global field support & spares – We stock CBM‑specific spares (seal kits, sensors, PLC modules) in Dubai, Singapore, and via our Houston agent. Delivery to most CBM hubs within 48‑72 hours.

• Competitive direct pricing – As a Sinopec subsidiary and OEM, you pay factory‑direct prices—15‑20% below Western brands for equivalent API certification and digital intelligence capabilities.

• Warranty – 24 months on digital electronics (PLCs, sensors, HMI); 12 months on mechanical components. Extended warranty available.

Frequently Asked Questions (FAQ)

Q1: How does AI lithology identification work on your digital intelligent CBM drilling rig?
The system continuously analyzes real‑time drilling parameters—drill pressure (WOB), rotation speed (RPM), torque, and vibration—using a K‑means++ machine learning algorithm. Based on 28 sets of measured CBM development drilling data, the model achieved zero misjudgment rate. Once the formation is identified (coal vs. sandstone vs. shale), a fuzzy PID controller automatically adjusts drilling parameters in milliseconds. Simulation results show system rise time is only 2.5 seconds—half that of traditional PID—and overshoot is one‑eighth.

Q2: What is the advantage of dual PLC control on a CBM rig?
The dual PLC architecture provides redundancy (automatic failover if one controller fails) and solves the challenge of limited I/O control ports in complex drilling rig designs. The master PLC handles command input; the slave PLC manages output and detection feedback. Critical functions such as drill pipe make‑up/break‑out and platform leveling are executed with one‑touch automation.

Q3: Can the rig operate in potentially explosive CBM environments?
Yes. All electrical components on the rig floor and within 15 meters of the wellhead are ATEX/IECEx Zone 1 rated. The PLC control cabinets are explosion‑proof enclosures (Ex d). Gas monitoring sensors are integrated into the control system with automatic shutdown if methane exceeds safe levels. The explosion‑proof design achieves intrinsic safety, ensuring safe operation during drilling.

Q4: What is the typical lead time for a digital intelligent CBM drilling rig?
Standard HFMZJ series rig (Level 3 intelligence, truck‑mounted): 6‑8 months. Skid‑mounted configurations: 8‑10 months. Level 4 (autonomous) adds 2‑3 months for software customization. Retrofit kits for existing rigs (adding dual PLC, PV75, and AI lithology): 8‑12 weeks.

Q5: Does the rig provide remote monitoring and data management?
Yes. Every Level 2+ rig includes cloud connectivity. All drilling parameters are streamed in real time to a secure web‑based dashboard. Office engineers, geologists, and supervisors can monitor the rig from anywhere. The system automatically generates IADC‑format daily drilling reports. The remote monitoring system uses TCP/IP protocol to upload data from the onboard edge computer via cellular or satellite connection.

Q6: How much crew is required to operate the digital intelligent rig?
Level 1 (digital ready): 2‑3 crew. Level 2 (connected): 2 crew. Level 3 (intelligent): 1 driller + 1 maintenance technician. Level 4 (autonomous): 1 driller only; office‑based supervisor can monitor multiple rigs.

Q7: Can the rig handle horizontal directional drilling for CBM laterals?
Yes. Many CBM fields now require horizontal wells to maximize reservoir contact. Our rigs are equipped for MWD, geosteering, and directional drilling. Kingdream’s MD high‑speed motor bits are specifically suited for directional and horizontal CBM wells.

Q8: What documentation do you provide with a digital intelligent CBM drilling rig?
You receive: API 4F/7K/8C certificates for the rig; dual PLC source code (commented); HMI configuration files; PV75 system manual; AI lithology identification model documentation; material certificates (EN 10204 3.1) for all structural components; operations and maintenance manuals; and an installation & commissioning checklist. All documentation is digital and searchable.

Q9: What is the cost difference between a standard rig and a digital intelligent rig?
Digital intelligence adds approximately 15‑20% to the upfront rig cost. However, field data shows reduction in connection time (30‑40%), lower vibration‑related NPT, automated reporting eliminating manual data entry, and AI‑optimized ROP improvements. Most operators achieve payback within 12‑18 months from reduced drilling days alone.