... of repeaters as given in Fig. 1 and Fig. 2 . In the bottomhole assembly, the communication network consisting of multiple repeaters interfaces and communicates with the downhole tools such as intelligent dual-purpose downhole tester valves, pressure gauges, electronic perforation firing heads, or reservoir...

... by the gauge reading the annulus outside the tubing below the packer, not being affected by friction as there is no fluid movement in the annular space, show a pressure drop three times lower than the gauge above the tester valve (0.5 bar). Interestingly, the total losses between the bottom and top gauges...