Embedded Files
Conductor Hammering
During drilling operations, the first piece of pipe to be installed in the ground is typically the conductor casing. This section of the well can be installed up to a depth of roughly 150 feet. Conductor casing can be run into pre-drilled holes, water-jetted, or inserted into the ground through a method of hammering or driving.
Diesel pile hammers are highly robust and reliable impact hammers designed for a wide range of pile-driving applications. They can be used for driving various pile types, including batter piles, H-beams, and sheet piles, as well as for installing piles into bearing layers and determining pile load-bearing capacity.
Diesel pile hammers are suitable for use in all displaceable soil conditions. They operate as single-acting, free-fall hammers based on the principle of impact atomization. The hammer is activated through the self-ignition of a compressed fuel-air mixture.
Before the piston strikes the pile, the compressed air within the cylinder forces the pile helmet firmly against the pile. This helps minimize the risk of damage to the pile head during driving operations.
Modern diesel pile hammers are equipped with an adjustable fuel pump that allows the piston stroke, and consequently the impact energy, to be regulated. This feature provides a significant advantage when varying soil conditions or different soil formations are encountered during pile installation. As an option, a hydraulically operated fuel pump with continuously variable adjustment is also available.
The diesel pile hammer is operated using a tripping device, which lifts the piston and initiates the hammering cycle. For use with hydraulic carriers, a hydraulic tripping device is also available.
Time Comparison Conventional Drilling vs. Diesel/HYD Hammer
COST COMPARISON – MAJOR COST SAVINGS
Conventional Drilling
The conventional drilling method involves several additional cost-intensive activities and resources, including:
Drilling rig operating costs
Drill bit wear and replacement
Drilling fluid (mud) consumption
Circulation equipment and associated operating costs
Casing-running services, including power tongs, power units, and handling equipment
Cementing operations and associated services
Additional fuel consumption
Additional personnel for TRS and cementing operations
Extended rig occupancy and associated daily operating costs
Diesel/HYD Hammer – Cost-Saving Advantages
The use of a Diesel/HYD Hammer for conductor installation can significantly reduce or eliminate several of the above cost components by enabling direct conductor driving and minimizing conventional drilling activities.
This approach can reduce the requirement for:
Drilling operations and associated rig time
Drill bits and drilling consumables
Mud and circulation systems
Hole-cleaning activities
Casing-running and cementing operations, where technically applicable
Additional personnel and support services
Fuel consumption associated with extended drilling operations
Overall rig occupancy and associated day-rate costs
MAJOR COST SAVINGS
By eliminating or minimizing drilling, circulation, hole cleaning, and other associated operations, Diesel/HYD Hammer technology provides a more efficient conductor-installation solution with the potential for substantial overall cost savings.
Key commercial benefit:
Lower operating costs + Reduced equipment requirements + Fewer personnel + Shorter installation duration = Significant Project Cost Reduction
Illustration: The accompanying infographic provides a professional visual comparison between conventional drilling and Diesel/HYD Hammer installation, highlighting the major cost components and the resulting savings opportunity.
Conductor Hammering HSE Advantages – Safety Improvements
Report abuse