A method of, and a system for, drilling to a position relative to a geological boundary

摘要

#$%^&*AU2017200627A120170216.pdf#####20 ABSTRACT A system 30 for drilling to a position relative to a geological boundary in a geological formation includes a sensor pack 26 for sensing parameters associated with a drilling operation carried out in the geological formation by a drill 10. A data storage module 34 stores a geological model of the geological formation and data relating to the sensed parameters, the geological model including data relating to the geological boundary. A processor module 32 is configured to monitor the drilling operation using the data related to the sensed parameters and to locate the position of a drill bit of the drill 10 in the geological formation and its corresponding position within the geological model. The processor module 32 is further configured to generate an end point at a defined position relative to the geological boundary. A drill controller 24 communicates with the processor module 32, the drill controller 24 being configured to control operation of the drill 10 and to cause the drill 10 to cease drilling when the end point has been reached. Fig. 226 10 24 Sensor Drill c rill e 30 36 38 40 32 _._ Processor Memory 110 Database 34 Fig. 2 Sensor 1 Sensor 2 Sensor n GPS 26.1 26.2 26.n 28 34 Data- Processor 36 base Update/generate geological 46 model Geological model map showing - 48 desired end point Fig. 3