| CPC E21B 21/12 (2013.01) [E21B 27/005 (2013.01); E21B 29/002 (2013.01); E21B 29/005 (2013.01)] | 18 Claims |
|
1. A well tool assembly comprising:
a tubular body configured to axially and fluidically couple to a wellbore tubing and to be disposed within a wellbore, the tubular body and the wellbore defining an annulus, the tubular body configured to flow wellbore fluid from a surface of the wellbore in a downhole direction;
a plurality of first ports formed on the assembly, the plurality of first ports configured, when open, to flow the wellbore fluid from within the tubular body into the annulus;
a plurality of petals on a downhole end of the assembly, the plurality of petals configured to permit the portion of the wellbore fluid to reverse circulate in an uphole direction from the annulus through an annular tubing attached to the tubular body, wherein the plurality of petals are downhole of the plurality of first ports;
a plurality of debris collectors comprising filter screens, the plurality of debris collectors positioned within the annular tubing in a flow path of reverse circulating wellbore fluid, the plurality of debris collectors configured to trap debris carried by the portion of the wellbore fluid reverse circulating through the tubular body; and
a plurality of second ports formed on the assembly, the plurality of second ports configured to receive the reverse circulating wellbore fluid that has flowed through the plurality of debris collectors and to flow the reverse circulating wellbore fluid into the annulus, wherein the plurality of second ports are uphole of the plurality of first ports.
|