Numerical Simulation and Experimental Studies of Karst Caves Collapse Mechanism in Fractured-Vuggy Reservoirs

Table 1

Characteristic information of specimens.

Specimen number	Well number	Depth of specimen (m)	Height (mm)	Lithology
1	S72-11	5,434.08~5,434.22	100	Dark gray marl
2	S86	5,566.88~5,567.08	100	Light gray karst limestone
3	Tashen 2	6,650.00~6,652.59	100	Light brownish-gray micrite dolomite
4	TK427	5,565.63~5,566.82	100	Gray sand micrite limestone
5	S80	5,528.96~5,529.10	100	Grayish-white brecciated limestone
6	T607	5,325.54~5,325.63	100	Gray fine sandstone
7	S80	5,528.96~5,529.10	50	Grayish-white brecciated limestone
8	T615	5,553.77~5,555.51	50	Brownish-gray fine sandstone
9	T314	4,887.00~4,888.12	50	Light gray pebbly sandstone