Patent ID: 9695675
Date: 2017-07-04
CPC Classifications: E21B

Claim:
1. An apparatus for controlling fluid flow in a borehole, comprising: a basepipe having an interior and defining at least one first orifice, the interior conveying the fluid flow, the at least one first orifice communicating the interior with the borehole; a first filter disposed on the basepipe adjacent the at least one first orifice and filtering the fluid flow communicated between the interior and the borehole, wherein the first filter and the basepipe define a gap therebetween communicating the fluid flow; at least one first outflow valve disposed at the at least one first orifice, the at least one first outflow valve permitting communication of the fluid flow in an outflow direction from the interior to the borehole and preventing communication of the fluid flow in an inflow direction from the borehole into the interior; a flow device in fluid communication with the gap and communicating the gap with the interior of the basepipe; and a cross-over assembly operable in a first operation communicating the fluid flow to the borehole, the at least one first outflow valve preventing communication of returns of the fluid flow from the first operation in the inflow direction into the interior, the flow device permitting the returns in the inflow direction into the interior.