The Practical Analysis Of The Automatic Drilling Tool In The High Steep Structure And Crooked-hole Formation And Its Building Force Theory

The vertical drilling system is a top-edged drilling tool that integrates techniques of mechanics, electricity and fluids. This tool is a revolutionary breakthrough in the practices of anti-deviation of the borehole and represents the highest technology level in the drilling industry. The bi-directional communication system being a part of the tool can transmit the engineering and geological data simultaneously while the tool is drilling, the surface system can monitor the working mode of the tool and provide relevant parameters for the drillers to decide. The MWD system can detect the sign of the play and the steering system acts as an eye when in directional drilling and steering after receiving the commands from the surface system. It is a must have tool in the high steep structure for increasing the drilling speed and reducing the costs.The self-developed automatic vertical drilling tool by the Daqing oilfield after years of the development and research reached to an equivalent standard of the tools developed by other foreign companies, which has successfully reduced the gap when comparing to the high techniques that once were acquired by the foreign companies. This research has won several national patents.The tool has been experimented several times in the high steep structure and crooked-hole formation till now, of which the results show that all the indicators have been met as previously expected and it having a broad market in the future.