Patent ID: 6948572
Filing Date: 2005-09-27
Classification: E21B

Abstract:
1. In a drilling system of the type comprising a rotatable drilling string, a drilling string communication system and a drilling direction control device connected with the drilling string, a method for issuing one or more commands to the drilling direction control device utilizing a changeable first parameter associated with the drilling string and a changeable second parameter associated with the drilling string, the method comprising: (a) providing at least one first parameter state, wherein the first parameter state is selected from the group of first parameter states consisting of: (b) providing at least one first parameter event relating to the first parameter state, wherein the first parameter event is selected from the group of first parameter events consisting of: (c) providing at least one second parameter state, wherein the second parameter state is selected from the group of second parameter states consisting of: (d) providing at least one second parameter event relating to the second parameter state, wherein the second parameter event is selected from the group of second parameter events consisting of: (e) issuing at least one command to the drilling direction control device in response to providing at least one of the first parameter event, the second parameter event, the first parameter state and the second parameter state.