A Safety Net for Controlling Lost Circulation 

Controlling Lost Circulation
Publication: Oilfield Review
Volume: 15
Issue: 4
Publication Date: 12/01/2003

In extreme cases, lost circulation during cementing operations jeopardizes wellbores. Commonly accepted solutions, such as reducing slurry density, limiting friction pressure while pumping, or performing stage-cementing operations, do not always work. Recent cementing operations that incorporate advanced, chemically inert fibers demonstrate that mitigating lost-circulation problems need not compromise cementing operations or the quality of the slurry or set cement.