Tag Archives: Peter Sweeney

Sweeny’s 1866 Rotary Rig


An “Improvement in Rock Drills” patent application filed after the Civil War included the basic elements of the modern petroleum industry’s rotary rig. The innovative design for making hole was decades ahead its time.

The inventor, who applied for his U.S. patent on January 2, 1866, described his rotary drilling method’s “peculiar construction particularly adapted for boring deep wells.”

Peter ...

Source: American Oil & Gas Historical Society