Quick move and install rig

Technical Specifications – Quick Move and Install Rig (Typical Models)

Parameter	ZJ50 (Skid/Walk)	ZJ70D (Walking Rig)	ZJ90D (Walking Rig)
Nominal depth (114mm DP)	3,500 – 5,000 m	4,500 – 7,000 m	6,000 – 9,000 m
Max hook load	3,150 kN (315 ton)	4,150 kN (415 ton)	5,850 kN (585 ton)
Drawworks power	1,100 kW (1,500 hp)	1,470 kW (2,000 hp)	2,200 kW (3,000 hp)
Walking speed (per cycle)	0.4 – 0.5 m	0.4 – 0.5 m	0.4 – 0.5 m
Max walking distance (single move)	200 m (continuous)	200 m	150 m (by design)
Mast folding time	45 min	45 min	60 min
Long‑distance move modules	14–16	16–18	18–22
Long‑distance rig‑up time	48 hrs (experienced crew)	48–60 hrs	60–72 hrs
Drive system	AC‑SCR‑DC / VFD	AC‑VFD‑AC	AC‑VFD‑AC
Substructure height	9 or 10.5 m	9 or 10.5 m	10.5 m
API standards	Q1, 4F, 7K, 8C	Q1, 4F, 7K, 8C	Q1, 4F, 7K, 8C

Application Areas – Where Quick Move and Install Rigs Deliver Maximum ROI

Application Scenario	Why Quick Move and Install Rig Excels
Cluster well pads (10–50 wells)	Hydraulic walking between wells saves weeks of NPT across the pad life
Shale gas / tight gas pads	High well density per pad; rapid moves accelerate production start
Mature field infill drilling	Tight access – rig walks into existing pad without new road construction
Desert exploration (remote wells)	Fewer truckloads for long moves; self‑walking on the final pad
Offshore platform cluster wells	Walking on platform skid rails (custom offshore package)
Multi‑well geothermal projects	Similar pad layout to oil/gas – ideal for walking rigs
Workover & drilling combo	One rig handles both, moving between wells on same lease

Product Types – Quick Move and Install Configurations

We manufacture three main configurations, each optimized for different move frequencies and distances.

1. Hydraulic Walking Rig (Integral Move)

• Move type: Walks as one assembled unit

• Best for: Cluster pads with well spacing <200 m

• Advantage: Zero disassembly, zero crane, 4‑6 hour move

• Depth range: 3,000 – 9,000 m

2. Skid‑Mounted Quick Move Rig

• Move type: Skidded modules, reassembled on new pad

• Best for: Long‑distance moves between fields

• Advantage: Lower capital cost than walking rig; still fast rig‑up (48 hrs)

• Depth range: 3,000 – 7,000 m

3. Trailer‑Mounted Quick Move Rig (small to medium)

• Move type: Towed as 1–2 units (mast folded)

• Best for: Well servicing, shallow drilling, single‑well campaigns

• Advantage: No crane needed for move; road legal

• Depth range: up to 3,000 m

Why Choose SJ Petroleum for Your Quick Move and Install Rig?

✅ Sinopec‑Backed Engineering – Field Proven

Our walking rig designs have been tested in Sinopec’s own cluster drilling campaigns. We know what works in real mud, real heat, and real tight schedules.

✅ Full In‑House Manufacturing – No Outsourced Surprises

Walking cylinders? We build them. Mast folding mechanism? Our shop. Control console? Programmed by our engineers. This means faster problem‑solving and single‑source accountability.

✅ API + Third‑Party Lab – Traceable Quality

Every walking rig component is manufactured under API Q1 and tested in our CNACL‑accredited lab. We provide material certs, weld maps, and hydrostatic test reports as standard.

✅ Custom Walking Speeds & Stroke Lengths

Tell us your pad spacing and desired move time. We size cylinder strokes and pump flow rates to match – faster walking for long pads, slower and more precise for congested sites.

✅ Global Service Network

Spare walking cylinders, seals, and hydraulic hoses stocked in Jingzhou and regional hubs. Field service engineers available for commissioning and emergency repairs.

✅ Proven Exports – 40+ Countries

From Kazakhstan (walking rigs on 20‑well pads) to Nigeria (skid‑move rigs in swampy terrain), our quick move and install rigs are drilling today. References available on request.

✅ Competitive Lead Times – 6–9 Months

Our 24‑position assembly yard allows parallel builds. We provide a milestone schedule: design → raw material → fabrication → assembly → FAT → shipping.

Frequently Asked Questions (FAQ) – Quick Move and Install Rigs

Q1: How much time does a walking rig save on a 20‑well pad?

Conventional rig: 14 days first rig‑up + (2 days x 19 moves) = 52 days of move time.
Walking rig: 3 days first rig‑up + (5 hours x 19 moves) = 8 days of move time.
Net saving: 44 days of non‑productive time – enough to drill 3–4 extra wells per year.

Q2: Can a walking rig move up or down a slope?

Yes, up to 3% grade (standard design). For steeper slopes (up to 5%), we adjust cylinder anchoring and add grade sensors. Tell us your site topography during design.

Q3: Do I need a special foundation for the walking system?

No. The walking feet distribute weight over a larger area than conventional skids. For soft ground, we offer larger foot pads. For most compacted gravel or dirt pads, no additional concrete is required.

Q4: What happens if the hydraulic walking system fails between wells?

We design redundant pumps and manual backup valves. In the extremely unlikely event of a complete failure, the rig can be lifted with external hydraulic jacks (which we include in the spare parts kit) and moved onto temporary rollers. A field service engineer can restore walking function within 24–48 hours.

Q5: Can I use the same walking rig on both 9m and 10.5m substructure heights?

Yes. Our adjustable substructure can be pinned at either height. The walking system operates at both settings without modification.

Q6: How long does it take to unfold the mast from transport to drilling position?

Approximately 45 minutes for ZJ50/ZJ70, 60 minutes for ZJ90. The process is fully hydraulic and controlled from a single remote station. No climbing or manual pin removal required for the fold joint.

Q7: Is the walking system available on truck‑mounted rigs?

No. Truck‑mounted rigs are designed for road travel, not pad walking. However, they are inherently "quick install” – rig‑up in 2–4 hours. For cluster pads, we recommend skid or walking configurations.

Q8: How do you train my crew to operate the walking system?

We provide:

• Classroom session during factory acceptance test (1 day)

• On‑site training during first move (supervised by our engineer)

• Video tutorials and printed quick‑reference cards

• Remote support hotline for first 6 months

Most crews are comfortable operating the walking system after 2 supervised moves.

Q9: Can the rig walk with the mast fully erected and top drive installed?

Yes. That is the whole point. The mast remains vertical, top drive in place, and traveling system rigged. Only the crown section may need folding for very low overhead clearance (e.g., under power lines). For open pads, walk as-is.

Q10: What is the warranty on the walking system?

Walking system components (cylinders, pumps, valves, hoses) carry the same 12‑month (commissioning) / 18‑month (shipment) warranty as the rest of the rig. Replacement parts shipped air freight. Extended warranty available for purchase.