What depth rating is this small skid rig designed for?

This 750HP class rig is rated for wells up to 2,800 meters, which makes it a cost-effective choice for shallow to medium-depth development work.

Can this rig be equipped with cold-weather features?

Yes, we can add arctic packages including heated cabins, engine block heaters, and low-temperature hydraulic fluid for operations in cold climates.

What is the footprint when rigged up?

The standard substructure layout is optimized for smaller well pads, which is useful for mature fields with limited space between wells.

Product List

ZJ50/3150D Rig

ZJ50/3150D rig adopts 3 sets of CAT3512 diesel generator sets as the main power. The 600V/50Hz AC is rectified to 0~750V DC by SCR cabinet to drive YZ08/YZ08A series DC motors for drawworks, rotary table and mud pumps.
Drawworks is driven by 2 sets of motors, 2 sets of mud pumps are separately driven by 2 sets of motors, and the rotary table is driven by 1 motor, with one-to-two control electrical transmission system of AC-SCR-DC type. Front open-face mast and swing up substructure are hoisted by drawworks power; the main brake is hydraulic disc brake and the auxiliary brake is magnetic eddy current brake.

Features

1. Adopt swing up or slingshot substructure. Substructure, mast and all equipments on the floor are installed at low position and raised up at once by drawworks power, having advantages of dismounting convenience, quick-carrying, entire movement and installation.
2. Drill arrangement meets the requirements of explosion-proof, safety, drilling engineering and equipment installation, disassembly and convenient maintenance.
3. The drawworks, rotary table and mud pump can realize independent stepless speed regulation, providing safeguard for optimizing drilling technology.

Applications

ZJ50/3150D Rig,Land Drilling Rig,China Drilling Rig Supplier is a heavy-duty land drilling rig built for sustained drilling operations in onshore oil fields. Its skid-mounted design makes it a popular choice for operators drilling concentrated field blocks where rig moves are infrequent and ease of assembly matters more than road mobility.

- It is typically used for drilling 2,500 to 5,000 meter production wells, depending on the horsepower rating.
- Common applications include development drilling in mature onshore basins, exploration well drilling, and workover operations on deeper wells.
- Operators in the Middle East, Russia, and Central Asia often prefer skid rigs for their lower initial cost and simpler maintenance compared to complex truck-mounted rigs.

Field-Proven Design

Our skid rigs use AC variable frequency electric drive, which simplifies the power transmission system compared to older mechanical drive rigs. This design reduces moving parts, lowers maintenance requirements, and gives the driller finer control over hook load and rotary speed.

- The control system uses common industrial PLC components that are available worldwide.
- Drawworks and rotary table components are interchangeable with common API-spec drilling rig spares.
- Optional cold-weather packages are available for rigs operating in northern climates.

Parameters of ZJ50/3150D Rig

Nominal drilling depth (114mmDP)	3500~5000m	Open diameter of rotary table	φ952.5mm (37.5" )
(127mmDP)	2800~4500m	Qty.× power of diesel engine	3×1080kW
Max.hook load	3150kN	Shift of Drawworks	Step ess speed regulation
Traveling system	6×7	Height of drilling floor	9m
Dia of Drill line	φ35mm	Mast type and height	Ktype, 45m
Qty.× power of Mud pump	2×1300hp	Drawworks power	1100kW(1500hp)
Transmission type	AC-SCR-DC	mud high pressure manifold	Φ102mm(dia)×35MPa
shift of rotary table	2 shifts step less speed regulation	Effective capacity of mud tank of solid control system	≥240m3