Patent ID: 6615920
Filing Date: 2003-09-09
Classification: E21B

Abstract:
A process for circulating a fluid through a plurality of templates in a main well bore comprising:providing an initial template and a first additional template, each said initial and first additional templates including a body, a tubular inlet leg, a tubular main outlet leg and a tubular offset outlet leg, said legs opening into said body, serially positioning said initial and first additional templates in a main well bore with said main outlet leg of said initial template connected to said inlet leg of said first additional template; providing an initial straddle assembly and a first additional straddle assembly, each said initial and first additional straddle assemblies including a straddle tube having proximal and distal ends and proximal and distal seals positioned substantially at said proximal and distal ends; releasably mounting said initial straddle assembly in said initial template with said proximal seal positioned in said inlet leg and said distal seal positioned in said main outlet leg to provide a continuous straddle assembly flow path through said body and substantially prevent fluid flow from said inlet leg of said initial template into said offset outlet leg of said initial template; and releasably mounting said first additional straddle assembly in said first additional template with said proximal seal positioned in said inlet leg and said distal seal positioned in said main outlet leg to provide a continuous straddle assembly flow path through said body and substantially prevent fluid flow from said inlet leg of said first additional template into said offset outlet leg of said first additional template, such that a continuous downhole flow path is provided through said initial and first additional templates.