Seafloor Drill Rig

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Introductions

Seafloor Drill Rig HD-500 is specially designed for marine geological exploration. It is suitable for various high efficiency drilling techniques such as diamond wireline coring, wave compensation directional drilling, continuous circulation coring and so on. The main body includes power system, hydraulic control system, drill rig components, power head feeding, hoisting winch, pull-up casing winch, wireline coring winch, hoist impact, power head, energy storage, mud transmission and blender system. Energy switching can be conducted easily at customers' will in accordance to the conditions at the construction site.

Parameters

Coring depth	Specifications and dimensions of the drill pipe	HC (Φ89)
	Approximate drilling depth	500 m
Lifting ability of the winch	7.7 tons winch
	Lifting ability	7700 kg
	Lifting speed	40m /min
	Dimensions of the cable	40m × 22mm
	5 tons winch
	Lifting ability	5000 kg
	Lifting speed	40 m /min
	Dimensions of the cable	50 m×18mm
	2 tons winch
	Lifting ability	2000 kg
	Dimensions	150 m×14mm
Drill tower	Height	9m
Power stations	Model	4BTAA3.9-C1259 (Cummins)
	Power	92KW
	Rotational speed per minute	2000r/min, maximum 2200 r/min
Hydraulic system	Primarypump	160 L/min 25MPa
	Secondary pump	64L/min 16MPa
	Auxiliary pump	40 L/min 12MPa
	Hydraulic cooling	Air cooled
Power head/ rotational speed of the drill shaft	Gear	Tier 1	Tier 2	Tier 3	Tier 4
	Speed ratio	6.37:1	3.42:1	1.82:1	1:1
	Rotational speed	110-188	206-350	387-658	705-1200
	Torque	5800-3394	3097-1822	1648-969	905-532

Features

Adopts modular design and therefore can be detached or installed easily. It has strong drilling ability and high reliability.
The rig has a self-made 4-speed gearbox. It has high strength and easy for maintenance. Besides, it has wide range of speeds and can be manipulated continuously between 0-1200. In addition, it has large torque which is beneficial to the speed selection for various drilling processes involving diamond drilling as the main body.
It has spindle stroke of 6.5 meters which is beneficial in increasing the drilling efficiency. Fully equipped meters which allows visualizing and monitoring of parameters such as torque, pressure, oil temperature, power system and so on. Thus, the working process and drilling conditions of the equipment can be mastered to prevent as well as reducing the drilling accidents.
Key components such as hydraulic pump, motor, winch and main hydraulic components are from international well-know brand. The equipment has strong reliability. It has high standardization and generalization which is convenient for maintenance and cost saving.
The hydraulic system adopts the reliable new structure seals, hydraulically driven mud pump and mud agitator. Therefore, the drilling process does not require other auxiliary power.