lost circulation

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.
References in periodicals archive ?
It absorbs hundreds of times its weight in water and is used primarily as a lost circulation material for HDD.
Tenders are invited for procurement of lost circulation control additive (lcca) for mud services, mehsana asset.
The transaction includes New Fluid Solutions' line of drilling fluid additives, including lost circulation materials, emulsifiers, lubricants and shale inhibitors used in both onshore and offshore drilling operations.
The 500th run of the DAV MX, in particular, cured 400 bbls per hour losses for an operator by allowing more than 400 bbls of coarse lost circulation material through.
can process raw hemp which can be used to make paper, fabric, cellulose plastics, materials used extensively in well drilling to prevent lost circulation, material for toxic spill cleanup; and, highly insulating building products such Hempcrete, to name a few.
Aged just eight months old, little Noah's tiny body was ravaged with meningitis septicaemia after he fell ill at home and in the critical days that followed whilst trying to battle the virus, his body lost circulation to his extremities causing some of the tissue to die.
ST-1 had recorded flow rates averaging 1,290 barrels per day including oil to surface before the test string was blocked by lost circulation material.
8mMDRT - lost circulation in Baong sands, treated zone with LCM
The Bunty was aimed at girls under 14, but lost circulation when the BBC brought out a rival - Jimmy Savile.
Brotherton Pipeline had completed the project with a single pilot hole attempt and a single reaming pass despite treacherous conditions and 100 % lost circulation.
This became clear during drilling in March and April, when the Deepwater Horizon experienced several "kicks" due to hydrocarbon flows and lost circulation due to formation fracturing.