Development and Application of Visualization System of Gas Geological Dynamic Characteristics under Big Data Framework

Table 1

Surface drilling datasheet structure.

Field number	Field name	Field type	Field length	Decimal places	Field name meaning
1	ID	Long	4	0	Serial number
2	CQ	Char	16	—	Mining area
3	ZK_num	Long	8	0	Drilling number
4	ZK_X	Long	12	2	Hole X coordinates
5	ZK_Y	Long	12	2	Hole Y coordinate
6	ZK_depth	Single	8	2	Hole termination depth
7	ZK_level	Single	8	2	Elevation of bore hole
8	ZK_coal	Logical	2	—	Whether see coal
9	MC_ply	Single	4	2	Coal seam thickness
10	ZK_obliquity	Single	2	2	Drilling angle