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Strategies & Market Trends : Natural Resource Stocks

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To: JimisJim who wrote (43324)	8/25/2006 9:22:48 AM
From: hubris33	Read Replies (2) of 108650

Jim - Hey, what is new about air as a circulatory fluid in well drilling? Pneumatic hammers have been used down hole for years. Only issue is getting enough flow to lift the cuttings. Sometimes one can add foam to help in the lift. H3

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