drilling rig for cluster wells ZJ50DB
- The drawworks is equipped with two-speed gear reducers with maximum test load 400 t and hook speed 1.5 m/s.
- Equipped with auto driller motor which can be used as a backup motor as well as for remote control, to remotely lift the mass and substructure 65 m away from wellhead.
- Equipped with safety monitor, hazardous gas detection, telecomminucation system and integrated drillers cabin, to ensure operation safety.
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Model
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ZJ50DB-ST
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Operation / storage temperature
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-45°§³ / -60°§³
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Drilling depth (5" DP), m(ft)
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5000 (16400)
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Working load, kN(lb)
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3200 (720000)
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Drawworks rated HP, kW(hp)
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1100 (1475)
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Speed of drawworks
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2+2R
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Power transmission type
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AC VFD (one-by-one type)
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Mast height, m(ft)
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43 (141)
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Lifting system line arrangement / Wireline dia., mm(in)
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6§ç7 / Ø35 (13.8)
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Substructure height, m(ft)
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9 (29.5)
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Rotary table
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ZP275
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Power and number of mud pumps, kW(hp)
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447 x 2 (600 §ç 2)
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Effective volume of solid control system, m3(ft3)
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270 (9835)
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Rail length, m/pc(ft/pc)
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10 (32.8)
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Well spacing of cluster wells, m/m(ft/ft)
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5 / 15 (16.4 / 49.2)
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Rig power supply
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6.3 kV
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Power of auxiliary generator, kW/V/Hz
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320 /400/ 50
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Rig movement style
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Hydraulically driven
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Heating mesures
- Equipeed with windfalls and insulation shed for open area operations.
- Electric heaters, heating devices and air conditioners are provided for in-door area.
- Electric tracing bands and heating devices for circulation system, hydraulic, air and electric lines are provided.
- Steam heating, hot air, electric heater and inslation layer are in major structural parts and key area. Low temperature starting device is provided.
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