公开(公告)号：US20240352795A1

公开(公告)日：2024-10-24

申请号：US18197026

申请日：2023-05-12

申请人： China University of Petroleum-Beijing

发明人： Wenhao HE ,  Chao XIONG ,  Ran JI ,  Huaizhong SHI ,  Zhongwei HUANG ,  Zhenliang CHEN ,  Zongjie MU ,  Xinkang FU

IPC分类号： E21B1/14 ,  E21B1/26 ,  E21B21/01 ,  E21B47/06

CPC分类号： E21B1/14 ,  E21B1/26 ,  E21B21/013 ,  E21B47/06

摘要： An experimental apparatus for rock-breaking through vibration impact, including a confining pressure loading assembly, a drill bit, a drill rod, a drilling fluid circulation assembly, a rotary impact assembly and an axial impact assembly. The confining pressure loading assembly is configured to apply pressures to a core sample located in a core cavity in three directions perpendicular to each other. The drill bit is capable of inserting into the core cavity to drill the core sample. The drilling fluid circulation assembly includes a drilling fluid inlet, a drilling fluid outlet and a mud pump connected therebetween. The rotary impact assembly includes a hydraulic rotary motor and a hydraulic swing motor connected to the drill rod, respectively. The axial impact assembly includes a first hydraulic cylinder, and a servo linear actuator connected to the first hydraulic cylinder and the drill rod.