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Products

ZJ90DB Skid-mounted Modular Drilling Rigs

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Features: 
Skid-mounted modular drilling rig is a new type drilling rig independently developed by our group. Its transmission system is a combination of hydraulic and mechanical drives, driller centralized operation is adopted in the hydraulic and pneumatic control system, the brake control system is flexible and reliable, and the auxiliary brake is flexible, convenient and efficient, so as to meet the requirements of automatic bit feeding. The design, production and manufacture of this skid-mounted modular drilling rig confirm to API Spec, 7k, 8C and 4F.


Products Characteristics:

The drilling rig meets new requirements of the current drilling operation.

Skid-mounted modularization design is adopted, which makes the rig structure more compact, the installation and transportation more convenient, and the drilling floor smaller.

Various types of derricks and substructures are provided for chosen, such as telescoping vertical lifting derrick, K-type integrated lifting derrick, retractable substructure, swing-up substructure, and box-on-box substructure.

Standardized and modularized design is adopted and multiple combination methods can be chosen, which enhance the universality and compatibility of the rig, and meet the requirements of different clients.

The main brake is equipped with band brake or disc brake, the auxiliary brake can be provided with pneumatic water-cooling disc brake or electromagnetic eddy current brake, and dynamic brake can be adopted for the auxiliary brake of electric driven rig, while independent bit feeding motor and control system can be adopted for drawworks.

Networking and information technology is adopted to integrate electrical, pneumatic, hydraulic controls, monitor and display, so as to realize intelligentialized and safe control of the driller.


Technical Parameters

Nominal drilling depth 

9000m (114mm DP)

8000m (127mm DP)

Max. Hook Load  

6750kN

Traveling system wireline  

7×8, in order

Drawworks rated power

3200kW(4200hp)

Gear number of drawworks

Two gears stepless speed regulation  

Wireline diameter of drilling rig  

φ45mm

Openings diameter of rotary table  

1257.3mm(49 1/2″)

Gear number of rotary table

One gear stepless speed regulation

Pump set number & power

3×1600HP pump(May upgrade to 2200HP pump)

Chassis model

Swing up

Chassis height and net space height under rotary table beam

12m, 10m

Type of derrick and effective height

K type, 48m

Driving mode

AC-DC-AC, One-by-one control

Number of main diesel engine/power

5×1200kw

Number of auxiliary generator set and power

1×292kW

Number of VF motor and power

2×1600kW+2×45kw+1×800 kW+3×1200 kW

Mud high-pressure manifold

4″ (drift diameter) ×53MPa

Mud effective capacity in solid control system   

600m3

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