Method and apparatus for cementing well casing using alternate f

Details Method and apparatus for cementing well casing using alternate f Method and apparatus for cementing well casing using alternate f

1995-06-20

1997-04-22

Dang, Hoang C.

Wells

Processes

Cementing, plugging or consolidating

1662423, E21B 3314

Patent

active

056222246

ABSTRACT:
A method and apparatus for casing and cementing an interval of a well bore which provide for a good distribution of cement over the entire interval even when a restriction forms within the annulus before all of the cement has been placed. The casing is provided with an alternate flow path for delivering cement slurry which flows from the lower end of the casing to different levels within the well annulus so that if a restriction occurs in the annulus, cement slurry can still be delivered to the annulus above the restriction.

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