Patent ID: 7980309
Filing Date: 2011-07-19
Classification: E21B

Abstract:
1. A single trip method for selective activation of perforating guns in a tool string that is operably positionable in a wellbore, the method comprising: providing a surface controller; positioning a downhole controller in the tool string, the downhole controller operable to communicate bidirectionally with the surface controller over a first communication link; positioning a plurality of downhole remote units in the tool string downhole of the downhole controller, the downhole remote units operable to communicate bidirectionally with the downhole controller over a second communication link; operably associating a perforating gun with each of the downhole remote units; positioning the tool string in the wellbore such that a first perforating gun is located proximate a first zone; sending a fire command sent over the first communication link from the surface controller to the downhole controller; sending a fire command over the second communication link from the downhole controller to the first perforating gun to perforate the first zone; detonating the first perforating gun; detecting data associated with the detonation of the first perforating gun with a plurality of sensors operably associated with the downhole controller; determining an intensity level of the detonation using the data from the plurality of sensors; communicating the intensity level of the detonation from the downhole controller to the surface controller over the first communication link; determining that the first zone should be reperforated based upon the intensity level of the detonation; and repositioning the tool string in the wellbore such that a second perforating gun is located proximate the first zone.