Patent ID: 9091147
Filing Date: 2015-07-28
Classification: C09K,E21B

Abstract:
1. A flow control screen for positioning in a subterranean well, the flow control screen comprising: a base pipe with an internal passageway, a blank pipe section and a perforated section; a filter medium positioned around the blank pipe section of the base pipe; a support assembly positioned around the base pipe; a housing positioned around the base pipe and extending between the filter medium and the support assembly to define a fluid path between the filter medium and the internal passageway; at least one flow control component positioned radially between the support assembly and the housing, the flow control component having at least one first port and at least one second port with a fluid chamber comprising a vortex chamber disposed therebetween, the flow control component disposed within the fluid path such that fluid traveling between the filter medium and the internal passageway must pass through the fluid chamber; and a temporary sealing substance disposed within the fluid chamber, the temporary sealing substance preventing fluid flow through the flow control component until the temporary sealing substance degrades when exposed to a water source in the well, thereafter permitting fluid flow through the fluid chamber of the flow control component.