Intelligent CBM drilling rig

Technical Specifications – Intelligent CBM Drilling Rigs (HFMZJ Series)

Our intelligent CBM drilling rigs (HFMZJ series) are available in four capacity classes covering 600 to 2,000 meters drilling depth. All models feature full‑hydraulic drive, double PLC intelligent control, and PV75 digital monitoring.

Intelligent CBM Drilling Rig Specifications

AI Control System Performance (Based on Verified Research)

Based on peer‑reviewed research on intelligent drilling rig control systems for coalbed methane mining.

Product Types – Intelligent CBM Drilling Rig Configurations

We offer intelligent CBM drilling rigs in three mounting configurations to match your field development plan:

1. Truck‑Mounted 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: 700‑3,000 meters (2296‑9842 ft). Ideal for multi‑well pad development where rig moves between wellheads every few days. Excellent mobility, low transportation cost.

2. Skid‑Mounted Intelligent CBM Rig – Modular construction on skids, assembled at the wellsite. Drilling depth: up to 3,000 meters (9,842 ft). 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 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. For shallow to medium CBM wells (<1,500 m). Low ground pressure (typically <5 PSI) – no gravel pads required over coal seams.

Applications – Where Intelligent CBM Drilling Rigs Deliver Value

Our intelligent CBM drilling rigs have been deployed in:

• 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.

• 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.

• India – Gondwana Basin – Emerging CBM market. 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 intelligent drilling with full API certification.

Why Choose SJ Petro for Your Intelligent CBM Drilling Rig?

• Sinopec‑backed engineering with Kingdream – Kingdream is a Sinopec group company with over 40 years of dedicated downhole tool manufacturing history. Recognized as a national high‑tech enterprise and a leading oil drill bit manufacturer in China, Kingdream has developed advanced functional products including directional drilling series, core bit series, and impregnated bit series. Through this collaboration, we bring world‑class downhole expertise to surface automation, creating an integrated intelligent drilling system from bit to top drive.

• Proven AI control system – Our intelligent control system is based on peer‑reviewed research validated in field applications, with demonstrated improvements in response speed 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.

• 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.

• Retrofit‑friendly – Not ready for a full intelligent rig? We can upgrade your existing CBM rig with our 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 AI capabilities.

• Warranty – 24 months on AI control system electronics; 12 months on mechanical components. Extended warranty available.

Frequently Asked Questions (FAQ)

Q1: How does AI lithology identification improve CBM drilling performance?
Traditional CBM drilling relies on mud logs or cuttings analysis to identify coal seams, which introduces delays of minutes to hours. Our AI model analyzes real‑time WOB, RPM, torque, and vibration data, identifying coal lithology instantly. The system then automatically adjusts drilling parameters to prevent coal cleat damage, reduce fines generation, and extend bit life. Independent testing using 28 sets of measured CBM development drilling data achieved zero misjudgment rate.

Q2: What is the difference between the HFMZJ series capacity classes?
HFMZJ6/30ZY: 600 m depth, 300 kN pull – shallow CBM exploration and water wells. HFMZJ10/49ZY: 1,000 m depth, 490 kN pull – standard shallow CBM production wells. HFMZJ15/60ZY: 1,500 m depth, 600 kN pull – medium‑depth CBM development (most popular). HFMZJ20/90ZY: 2,000 m depth, 900 kN pull – deeper CBM wells and unconventional gas.

Q3: Can the intelligent control system be retrofitted to my existing CBM rig?
Yes. We offer a retrofit package including sensors, double PLC control system, PV75 monitoring display, and AI lithology identification software. Installation typically takes 2‑3 weeks during a scheduled maintenance stop.

Q4: Is the rig certified for operation 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 engine shutdown if methane exceeds safe levels.

Q5: What is the typical lead time for an intelligent CBM drilling rig?
Standard HFMZJ series rig (truck‑mounted, Level 1 intelligence): 6‑8 months. Full AI lithology identification (Level 2): add 2‑3 months for software customization. Retrofit kits: 8‑12 weeks.

Q6: How much crew is required to operate the intelligent rig?
Level 1 (basic automation): 2‑3 crew. Level 2 (AI lithology + remote monitoring): 1 driller + 1 maintenance technician. Remote supervision option allows office‑based drilling engineer to monitor multiple rigs simultaneously.

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 training do you provide for operators?
We provide a two‑week training program at our factory or your site: classroom (intelligent control system overview, AI lithology identification, safety interlocks) and hands‑on (simulator‑based practice with the same HMI). Experienced drillers typically master the system within the first 2‑3 wells.

Q9: How does the rig protect coal seam permeability during drilling?
Three layers of protection: (1) Underbalanced/air/foam drilling capability prevents fluid invasion into coal cleats. (2) AI lithology identification reduces WOB and RPM automatically when entering coal, minimizing fines generation. (3) Full‑hydraulic drive provides smooth, stepless control – no shock loading on the formation.