Tigre Tierra® Casing Drivers for Top Head Rotary Drilling

These rugged, dependable pneumatic hammers allow operators of top head rotary rigs to advance or withdraw casing during vertical and horizontal drilling in overburden and caving formations of boulders, gravel, glacial till, sand and clay.

Drill-through driving greatly increases penetration rates and lowers costs. Formation sampling is more accurate because cuttings return through the smooth annulus between drill pipe and casing, not up a rough or eroded bore hole.

We offer four models to drive pipe from (in/mm) 2/50 through 24/610 diameter. They are designed to deliver optimum performance under all working conditions and will fit most top drive rigs when mounted with our hydraulic lift system.

Introduced in 1969, Tigre Tierra casing drivers have earned a worldwid reputation among engineers and drillers for toughness, durability and easy field maintenance.

Applications include:

• Water wells
• Groundwater monitoring
• Mineral Exploration
• Pile driving
• Oil and gas well surface casing
• Tie-back anchors
• Horizontal freeze pipes

These patented drivers are designed for use with top head air rotary drilling machines to drive or pull steel casing through overburden and caving formations of boulders, gravel, glacial till, sand and clay. They are pneumatically powered and have only two moving parts.

Drill pipe runs through a vertical passage. Casing is driven as drilling advances, each operation controlled separately to permit coordinated drilling and driving through varied formations. Drivers can be reversed to hammer up casing for re-use or to expose well screens.

Four models are available to drive casing from 2" to 24" in diameter. Standard rotary bits or downhole percussion hammers can be used for drilling.

Drillers can enjoy these advantages over conventional air rotary, mud rotary and cable tool percussion methods:

• 80% improvement in penetration rates
• Casing advances simultaneously with drilling and circulation
• Operator can tap and chip through difficult formations using controls
• No pulling drill pipe to advance casing
• Straight holes, no cave-ins and loss of circulation
• All-weather operation, no mud additives
• Less air needed, casing protects hole from erosion
• Continuous formation sampling, small aquifers easily detected

Casing Drivers diagram