US 12,265,065 B1
Fracture opening simulation device for hard brittle mudstone and shale with organic matter
Yiquan Ma, Chengdu (CN); Yangbo Lu, Chengdu (CN); Ziqi Feng, Chengdu (CN); Yongchao Lu, Chengdu (CN); Lei Chen, Chengdu (CN); Wei Wei, Chengdu (CN); Ying Guo, Chengdu (CN); Chen Zhang, Chengdu (CN); Mingyu Zheng, Chengdu (CN); and Lan Yang, Chengdu (CN)
Assigned to Chengdu University of Technology, Chengdu (CN)
Filed by Chengdu University of Technology, Chengdu (CN)
Filed on Oct. 28, 2024, as Appl. No. 18/928,172.
Claims priority of application No. 202410252684.8 (CN), filed on Mar. 6, 2024.
Int. Cl. G01N 3/10 (2006.01); G01N 33/24 (2006.01)
CPC G01N 3/10 (2013.01) [G01N 33/24 (2013.01); G01N 2203/0064 (2013.01); G01N 2203/0067 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A fracture opening simulation device for hard brittle mudstone and shale with organic matter, it includes a simulated support, the lower part of the simulated support is connected with a storage bucket bottom block plate through a screw, the middle of the simulated support is provided with a support socket with a circular structure, the upper surface of the storage bucket bottom block plate is provided with a circular convex structure of the block plate boss, the block plate boss is inserted in the support socket, the upper surface of the simulated support is fixed connected with a core column storage barrel, the axis of the core column storage barrel is perpendicular to the upper surface of the simulated support, wherein, The core column storage barrel is connected with two pressure simulation push blocks; The upper end of the core column storage barrel is provided with a storage tube cover plate; The middle of the storage tube cover plate is provided with a drilling fluid pressure chamber, and the axis of the drilling fluid pressure chamber is perpendicular to the upper surface of the storage tube cover plate;
A pressure gauge is installed on the upper surface of the storage tube cover plate through screws; The detection end of the pressure gauge is located below the storage tube cover plate; The edge of the storage tube cover plate is connected with two positioning lock plates, and the lower end of the positioning lock plate is connected with the upper edge of the core column storage barrel;
The core column storage barrel is a cylindrical structure, the side wall of the core column storage barrel is provided with two guide ports on a side of storage barrel; The side wall of the guide port on the side of storage barrel is parallel to each other, the edge of the outer surface of the core column storage barrel is fixed connected with the upper wedge ring, the cross section of the upper wedge ring is a wedge-shaped structure; The inclined plane of the upper dswedge ring is facing outward and upward; The outer cylinder of the core column storage barrel is fixably connected with a limit connecting plate in front and behind; The limit connecting plate is fixed on both sides of a limit guide rod, the limit guide rod is perpendicular to the limit connecting plate, the limit guide rod is connected with the outer end of the guide rod limit end by welding;
The pressure simulation push block is surrounded by a rubber outer layer, the pressure simulation push block is sliding connected in the guide port on the side of storage barrel; The pressure simulation push block external surface is provided with a simulated push frame; The simulated push frame front and rear respectively is fixed connected with a simulated drawing plate; A drawplate guide hole with a circular hole structure is simulated through the simulated drawing plate; The simulated drawing plate close to the core column storage barrel center side is fixed connected with a push plate tension spring, the push plate tension spring sockets on the limit guide rod, the push plate tension spring is fixed connected with the outer end of a positioning lock barrel; The positioning lock barrel is actively connected with the limit guide rod, the positioning lock barrel is provided with a locking screw hole, the axis of the locking screw hole is perpendicular to the limit guide rod, and the locking screw hole is spirally connected with a locking screw column.