Patent ID: 9677380
Date: 2017-06-13
CPC Classifications: E21B,Y10T

Claim:
1. A sliding sleeve opening with a deployed plug, the sleeve comprising: a housing defining a first bore and defining a flow port communicating the first bore outside the housing; an inner sleeve defining a second bore from a proximal end to a distal end and being movable axially inside the first bore from a closed position to an opened position relative to the flow port; and a seat disposed in the inner sleeve, the seat being conical and having an inner perimeter and an outer perimeter, the inner perimeter forming a top open end of the seat, the outer perimeter forming a bottom open end of the seat, the seat having an initial state with the top open end disposed more toward the proximal end of the inner sleeve than the bottom open end, the seat in the initial state engaging the deployed plug and moving the inner sleeve open in response to fluid pressure applied against the plug engaged in the seat, the seat deforming from the initial state to an at least partially inverted state, with the top open end bent in toward the bottom open end, in the inner sleeve in response to the fluid pressure applied against the plug engaged in the seat.