The first-level well control is to make the bottom hole pressure slightly higher than the formation pressure through appropriate technical measures and drilling fluid density.

The first-level well control adopts appropriate drilling fluid and technical measures to make the bottom hole pressure slightly higher than the formation pressure. As a result, formation fluids do not enter the well.

Secondary well control
Secondary well control means that overflow occurs when the bottom hole pressure is lower than the formation pressure. At this time, the overflow can be controlled by the wellhead control equipment to establish a new bottom hole pressure balance. And make it reach the primary well control state again.

Secondary well control technology requires wellheads to be equipped with blowout preventer packs in order to provide a secondary barrier for drilling.

Three-level well control
Three well control means that after the failure of the second well control, the formation fluid flows into the well out of control, resulting in a blowout. Also commonly referred to as blowout rescue. After the blowout, certain technologies and equipment should be used to restore the control of the well, and finally the state of first-level well control should be restored.

Esimtech can provide drilling and well control simulators, as well as Virtual reality emergency training simulators for simulation and emergency rescue training for blowouts, explosions, H2S leaks and other accidents.