New modular water- well drilling rig design is low-cost, powerful

摘要

According to Quentin Dulake, sales manager at Dando Drilling International, the company's dedicated, bigger water-well rigs have an established reputation for deep drilling. "And this won't change." he said. "However the market itself has changed. Unlike past years, governments and nongovernmental organizations (NGOs) alike are frequently turning to contractors for well-drilling projects rather than investing in their own equipment. These contractors and smaller NGOs - like Friends in Action - still require powerful, reliable, fast-drilling rigs, but they are (also) looking for lower-cost solutions." Realizing this, the Dando engineering team decided to tackle the problem from a design standpoint. The first of these models designed specifically for water-well drilling is the low-cost, modular, mid-sized Watertec 9000. Mounted on any robust 4×4 (such as the MAN truck chosen by the FIA team for Burkina Faso), in standard form this rig features a 142-horsepower Caterpillar C4.4 deck engine, a versatile rotary head capable of DTH hammer and airflush drilling as well as regular mud rotary, a 2040-kilogram-force main winch, and a robust open guide table. With 10,000 kilogram-force of pullback, the rig has a theoretical dry-hole capability of over 700 meters, using 90-millimeter rod.