CPC E21B 34/08 (2013.01) [B01D 29/13 (2013.01); B01D 35/02 (2013.01); B01D 35/147 (2013.01); E21B 43/08 (2013.01)] | 8 Claims |
1. A filter bypass tool for use in a subterranean well, the filter bypass tool comprising:
an inner tube having a flow passage extending longitudinally through the inner tube;
a pipe surrounding the inner tube, with an annulus formed radially between the pipe and the inner tube, the pipe being perforated to permit fluid communication between the annulus and an exterior of the pipe; and
a bypass valve having closed and open configurations, in the closed configuration the bypass valve blocks fluid flow from the annulus to the flow passage, in the open configuration the bypass valve permits fluid flow from the annulus to the flow passage, and the bypass valve is configured to open in response to A pressure in the annulus being greater than a pressure in the flow passage by a predetermined amount an outer housing, the bypass valve being positioned in the outer housing in which the bypass valve comprises a bypass flow path in communication with the annulus, and the bypass flow path is formed in a sleeve received in the outer housing.
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