| 摘要 |
<p>The invention relates to a method of real time control of fluid influxes into an oil well from an underground formation during drilling. The injection pressure pi and return pressure pr and the flow rate Q of the drilling mud circulating in the well are measure. From the pressure and flow rate values, the value of the mass of gas Mg in the annulus is determined, and the changes in this value monitored in order to determine either a fresh gas entry into the annulus or a drilling mud loss into the formation being drilled. Application to the drilling of oil wells.</p> |
