1500HP Mechanical Land Drilling Rig

  • Model ZJ50/3150L and ZJ50/3150LB, 1500HP, mechanical land drilling rig is used to drill and complete 5000m deep oil, gas and water wells.
  • The drilling rig equipped with three diesels and two mud pumps as the main equipment. The driving mode is that three diesels drive drawworks, mud pumps, rotary table, and catheads through the hydraulic torque converter and the one-piece chain compound case. The rotary table and the catheads are driven through sloping right angle transfer case and the sloping cardan shaft as well as through above two components.
  • The rotary drilling operation condition has the higher drilling speed and torque converting range, the drawworks has also the higher hoisting speed range, and mud circulating system has the higher hydraulic horsepower and pump pressure.
  • The total modularized driving arrangement can satisfy the needs of prompt assembly and disassembly and convenient maintenance, adjustment, inspection and transportation.
  • For the sake of promoting the assembly and disassembly efficiency. The connection between substructure modules is the hasp connection or the end faces positioning bolt connection.
  • Because all driving components, are concentrated according to the arrangement principle of eight modules in the structural design, the truck number required for moving the drilling rig is reduced and the moving speed is improved.
  • The drawworks is installed in a low position, which solves the problem that it is difficult to hoist it onto the raised floor and keep the safety sense, and increases the effective utilization area of the drill floor.
  • To solve the problem that it is difficult to ensure the quality of the chain installation of the open type chain drive case and butt type chain compound case of the existing drilling rigs, which is one of causes of frequently breaking the chain, the integral chain compound case and the integral input chain drive case of drawworks are designed and manufactured by using one-piece process technique, promoting the installation quality and efficiency.
  • 7.5m drill floor height and 6.3m clear rotary beam height are favorable to the back flow of the mud into the well, the arrangement of mud tanks and the suction of mud pumps.
  • ‚ÄčThe mechanized wellhead tools (either the mechanical cathead or the hydraulic cathead) may reduce drilling workers’ labor intensity.

Product Specifications For 1500HP Mechanical Land Drilling Rig

Typical model

ZJ50/3150LB, ZJ50/3150L

Nominal drilling depth

3500mm~5000m with 4 1/2" DP

Maximum hook load


Drill line strung

6x7, 12 lines

Nominal diameter of drill line

1 3/8" OD

Max. Fast-line pull


Mast type

Pin connection type cantilever mast

Mast height


Monkey board height


Monkey board capacity

5000m DP racking capacity

Type of drilling structure

2-step erection or box-on-box structure

Floor height/clearance


Rig main power

3 each 1200HP diesel engines

Power transmission

Hydraulic converter + chain compound + universal shaft

AC power 

3x600Kw AC generator, 400Vac/50Hz/3P

AC power (optional)

2x600Kw AC generator, 400Vac/50Hz/3P

Air system

2 each screw air compressor, air drier, air vessels, air lines

Drawworks input power


Drawworks shift/speed

4F + 2R

Rotary opening size

37 1/2"

Drive of rotary table

Type AC motor + gearbox, speed continuously adjusted

Drive of rotary table(optional)

Chain gearbox + universal shaft, 4F+2R,

Mud pump

2 each 1300HP, 5000psi triplex pump

Drive of mud pumps

Universal shaft through chain compound

Working stroke per minute

Up to 110 SPM

Mud tanks

5 tanks, 1770 bbls total effective volume

Solids control equipment

2 linear motion shaker, degasser, centrifuge, d mud cleaner

High pressure mud line and standpipe

4", 5000psi, dual mud line, dual standpipe

Volume of flesh water tank

630 bbls

Drilling parameter

Analog and digital data watching and recording system