Research on Safety Drilling Back Pressure Control Based on Fuzzy PID Control
نویسنده
چکیده
Pressure control drilling technology through the precise control of the entire wellbore annular pressure profile, the bottom of the pressure can always maintain the safety density window, so as to achieve the purpose of safe operation. In the drilling process, the use of conventional drilling technology for drilling operations, easily lead to well, overflow and other drilling accidents. In this paper, the use of pressure control drilling technology, through the back pressure compensation system in the wellhead to apply back pressure, and thus to keep the bottom hole pressure balance. And the back pressure control model is established, the fuzzy immune PID adaptive control algorithm is designed,the speed and precision of the back pressure control response is improved,Which is of great significance to promote the development and popularization of controlled pressure drilling.
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