Patent ID: 9719311
Date: 2017-08-01
CPC Classifications: E21B,E21F

Claim:
1. A method of using a set of subterranean manifold string ( 49 , 70 , 76 ) members for selectively controlling separate injected and extracted continuous, simultaneously flowing fluid mixture ( 38 ) streams ( 31 - 37 ) of varying velocities within one or more subterranean wells during drilling and production operations, extending from a single main bore ( 6 ) and wellhead ( 7 ), comprising the steps of: providing, at an upper end of said one or more subterranean wells, a subterranean disposed manifold string ( providing at least one manifold crossover ( selectively controlling said separate simultaneously flowing fluid streams of varying velocities between said concentric bore wellhead and said at least one proximal region using one or more flow controlling members (