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

ZJ70/4500D Rig

ZJ70/4500D rig adopts 4 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 pump.
The drawworks is driven by 2 motors, 2 mud pumps are separately driven by 2 motors and the rotary table is driven by 1 motor, adopting one-to-two control electrical transmission system of AC-SCR-DC type. The front open-face mast and swing up substructure are raised by drawworks power, with hydraulic disc brake as the main brake and magnetic eddy current brake as the auxiliary brake.

Features

1. Substructure adopts swing up and slingshot type. Substructure, mast and all equipments on the floor are installed at low position and raised as a whole by drawworks power, which is convenient for dismounting and has advantages of 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

ZJ70/4500D 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 ZJ70/4500D Rig

Nominal drilling depth (114mm DP)	4500~7000m	Open diameter of rotary table	φ952.5mm (37.5" )
(127mmDP)	4000~6000m	Qty.× power of diesel engine	4×1200kW
Max.hook load	4500kN	Shift of drawwork	stepless speed regulation
Traveling system	6×7	Height of substructure	10.5m
Dia of drill line	φ38mm	Mast type and height	Ktype, 45.5m
Qty.× power of mud pump	2×1600hp	Drawworks power	1470kW(2000hp)