High-temperature and high-pressure simulator for deep in-situ environment

A high-temperature and high-pressure simulator for a deep in-situ environment, comprising a high-fidelity sample chamber, wherein

• a lower end of the high-fidelity sample chamber is provided with a bottom cylinder;
• a lower end of the bottom cylinder is provided on a base;
• a piston rod of the bottom cylinder extends into the high-fidelity sample chamber, and an upper end of the piston rod is provided with a rock sample seat;
• an upper end of the high-fidelity sample chamber is provided with a rock sample cap;
• a top of the high-fidelity sample chamber is sealed by an end cap of the high-fidelity sample chamber;
• an upper end of the end cap of the high-fidelity sample chamber is provided with a multi-section coring drill chamber;
• an uppermost section of the coring drill chamber is connected to a lift cylinder;
• a coring drill is provided in the multi-section coring drill chamber, and the coring drill extends into the high-fidelity sample chamber through a central end cap;
• an upper end of the lift cylinder is sealed by an upper end cap;
• the lift cylinder is provided therein with a lift rod;
• and
• the lift rod has a lower end provided with a lift piston and fixedly connected to an upper end of the coring drill, and an upper end passing through the upper end cap;
• wherein
• a lower surface of the central end cap is provided with an annular groove;
• a central part of the annular groove is provided with a second convex ring, wherein the second convex ring extends into a limit groove starting from an upper end of the rock sample cap;
• the upper end of the high-fidelity sample chamber is provided with a third convex ring extending into the annular groove;
• and
• a sealing ring is provided between a side surface of the third convex ring and a side surface of the annular groove.