Vibration Sensor Approaches for the Monitoring of Sand Production in Bohai Bay

Table 1

Major parameters of test wells.

Well	Flow temperature (°C)	Moisture content (Vol.%)	Flow velocity (m/s)	Sand content (Vol.%)
A5	56.2	78	2.21	0.01
A15	55.6	40	0.69	0.00
A25	53.9	52	0.72	0.02
A45	56.0	60	2.17	0.00