Patent ID: 7984762

Claim:
A method of completing a wellbore having a branch wellbore extending outwardly from a window in a parent wellbore, the method comprising: positioning a tubular string in the window, wherein the positioning comprises deflecting the tubular string from the parent wellbore into the branch wellbore; providing a particulate barrier outside and against the tubular string proximate the window, the particulate barrier substantially excluding transport of particulate matter from the branch wellbore into the parent wellbore outside of the tubular string through the window, wherein providing the particulate barrier comprises swelling a sealing material adhered to the tubular string, the swelling increasing a volume of the sealing material to form a seal between the tubular string and the window, the swelling activated by exposing the sealing material to at least one of hydrocarbons and water; and the tubular string passing fluid into the tubular string proximate the window from a formation proximate to the window while substantially excluding transport of particulate matter from the formation proximate to the window into the tubular string, wherein the tubular string comprises a plurality of apertures and the sealing material comprises a plurality of apertures, at least some of the plurality of apertures in the tubular string aligned with at least some of the plurality of apertures in the sealing material, the fluid from the formation proximate to the window passing into the tubular string through the at least some of the apertures in the swelling material aligned with the at least some of the apertures in the tubular string, and wherein the at least some of the plurality of apertures in the sealing material are sized to avoid closing the aligned at least some of the plurality of apertures in the tubular string when the sealing material swells.