公开(公告)号：US20240102496A1

公开(公告)日：2024-03-28

申请号：US18012665

申请日：2022-08-22

Applicant: SICHUAN UNIVERSITY

Inventor： Ru ZHANG ,  Zetian ZHANG ,  Zhilong ZHANG ,  Li REN ,  Chendi LOU ,  Kun XIAO ,  Anlin ZHANG ,  Qijun HAO ,  Lanbin ZHANG

IPC: F15B15/14 ,  F15B15/26

CPC classification number: F15B15/1428 ,  F15B15/1447 ,  F15B15/261

Abstract: A bottom cylinder for a high-temperature and high-pressure environment simulator of a high-fidelity corer is provided. The bottom cylinder includes a cylinder barrel. The bottom of the cylinder barrel is provided with a cylinder base. The piston is provided inside the cylinder barrel and divides an inner cavity of the cylinder barrel into a rodless cavity and a rod cavity. The piston is provided with a piston rod. The outer wall of the cylinder barrel is provided with an oil inlet hole communicated with the rodless cavity, an oil outlet hole communicated with the rod cavity, and a reserved hole. The lower end surface of the piston is provided with a first buffer ring, and the upper surface of the cylinder base is provided with a second buffer ring mated with the first buffer ring. The bottom cylinder is applied to the simulator for oil and gas resource exploitation.