Hydraulic ram pumps and Sling Pumps

Profile -- Cable Tool Drilling, 9/18/94tubes/samplers, drill bits, core barrels, and drill rods).The entire drill rig must be decontaminated before work begins. The shoe, liner, and core catcher of thesplit spoon sampler must be chemically decontaminated before each sample is taken. In contaminatedsites, samples are taken every 5 feet or continuously. When drilling proceeds 5 feet beyond the area ofcontamination, all the drilling tools are decontaminated. It is not usually necessary to decommission anyequipment.How must the secondary waste be disposed of? Is disposal available?For the small quantities of drilling waste, disposal depends on the type of contamination. Hard toolingcreates greater amounts of waste.Practicality:What future cleanup options are precluded by this technology?This technology is very practical, and it does not foreclose future cleanup options.How reliable is the technology?This method is one of the most reliable drilling techniques. There are very few equipment failures.Failure in casing and drill tools occurs 4% to 8% of the time the drill is in use.If the technology fails, how are the effects of the failure controlled?This question is not applicable to drilling technology.How easy is the technology to use?The technology is easy to use.Rigs are simple in design and require little sophisticated maintenance. Though a cable tool rig can beoperated by one person, at Hanford a helper is required for safety reasons.What infrastructure is needed to support the technology?One person is required to operate the rig. Cable tool drills are powered by engines that run on gasoline,diesel, or propane.http://www.drilshop.com/holes/cabtool.html (6 of 13) [1/13/2005 12:48:35 PM]