lost circulation

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lost circulation [′lȯst ‚sər·kyə′lā·shən]

(petroleum engineering)

A condition that occurs when the drilling fluid escapes into crevices or porous sidewalls of a borehole and does not return to the collar of the drill hole. Also known as lose returns; lose water; lost returns; lost water.

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No references found			stuck tools, difficulty with mud and lost circulation problems. Market fired up for Kurdistan exploration & production companies by Buzz on the Boards / Stockhouse But, with Sanders helping to rescue it, gains have been made to recover the lost circulation by expanding distribution throughout the metro area. The Evening Whirl--blood, bodies and babes by Malone, Roy / St. Louis Journalism Review H1-47/02 NFW Exploration Well Drilling After Lost Circulation Delays The H1-47/02 NFW exploration well (well No. Verenex Unveils Operational Activities in Libya by UMCI News (Potomac Falls, VA)			loss of use insurance Loss, Louis loss-cone instability loss-in-weight feeder loss-of-head gage lossage losser circuit Lossev effect Losskii, Nikolai Losskii, Nikolai Onufrievich lossless lossless audio compression lossless compression lossless data compression lossless junction lossless material Lossless Predictive Audio Compression lossy lossy attenuator lossy audio compression lossy compression lossy data compression lossy line lossy material Lost Battalion lost circulation lost circulation material lost cluster Lost Creek State Park Lost Creek State Recreation Site Lost Dauphin Lost Dutchman State Park Lost Generation lost ground lost hole Lost in Space lost in the noise lost in the underflow Lost Maples State Natural Area lost motion lost packet lost property lost returns Lost River State Park lost stream lost time Lost Trail National Wildlife Refuge lost tribes lost water Lost Weekend, The lost-head nail			Lost and No One Knows Lost and Stolen Passport Lost and Unaccounted For Lost and Unaccounted for Gas Lost Angeles Rubber Works Lost Animal Lost Art of Blogging Lost Arts Revival by Kreofsky Lost at Sea Lost Aurora Plastics Company Lost Bather Drill Lost Battalion Lost Book Reading Sheep Lost Boys Lost Bride Lost Bride Lost Carbonate Sintering Lost Card Lost Cards lost caste lost caste lost caste lost cause lost cause lost cause lost causes lost causes Lost Channel Observing Site Lost Child Alert Technology Resource Lost Children of Babylon lost circulation Lost Circulation Material Lost Circulation Material Lost city (Stargate) Lost city (Stargate) Lost City Hydrothermal Field Lost City of the Jedi Lost cluster Lost Coast Kennel Club Lost Coaster of Superstition Mountain lost connection lost cool lost cool lost cool lost count lost count lost count lost count lost count Lost Creek Neighborhood Association Lost Creek State Park Lost Creek State Recreation Site Lost Dauphin Lost Descendant Lost Desert Scratchcard Lost Dog and Cat Rescue Foundation Lost Dungeons of Norrath Lost Dutchman State Park Lost Dutchman's Mining Association Lost face Lost face

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