Categories
Lost circulation falls into two main categories:
- "Minor losses" - This is where losses are between 6 and 470 barrels (1 to 75 m3), and remains within those amounts, or is ceased, within 48 hours.
- "Severe losses" - This is where losses are greater than 470 barrels (75 m3), or it takes greater than 48 hours to control or cease the lost circulation.
Total losses may also occur, where the return of fluids is completely lost to the surface. This may fall into either the minor or severe losses categories, depending on the amount of losses and the time involved in regaining circulation.
Read more about this topic: Lost Circulation
Famous quotes containing the word categories:
“The analogy between the mind and a computer fails for many reasons. The brain is constructed by principles that assure diversity and degeneracy. Unlike a computer, it has no replicative memory. It is historical and value driven. It forms categories by internal criteria and by constraints acting at many scales, not by means of a syntactically constructed program. The world with which the brain interacts is not unequivocally made up of classical categories.”
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