Cable tool drill rigs are a traditional way of drilling water wells and continue to be the most practical drilling method for large diameter, deep water wells in the Pacific Northwest, especially for deep wells in gravel aquifers.
[pdf] Mars field was discovered in 1989 at around 130 miles south of New Orleans. The field, located at 3,000ft water deep, started production in 1996. Mars B was discovered after Shell geologists located untappe.
[pdf] EVERETT -- Despite protests from environmentalists and Seattle city leaders, Royal Dutch Shell is still planning to move its Arctic oil drilling rigs to a Seattle port terminal. One oil rig, the Noble Discoverer, docked in the Port of Everett Tuesday night.
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