Case Study

SmartSolo in Shanxi province, China.

From 27th June to 1st July 2017, Dynamic Technologies conducted a field test to compare the performance of 5Hz SmartSolo single receivers and a 408 system using 5×2 geophone strings.

The test was completed in Xixian, Shanxi province, a deeply gullied area of the Loess Plateau. The terrain exhibits uninterrupted mountains running from the higher altitude north-east to lower ground in the south-west. Xixian is a temperate continental monsoon climate where the annual average temperature is 9.5℃, annual rain is between 450 and 550mm, receiving around 2740.9 hours of sunshine a year, and only 150-160 days without frost.


The instruments for comparison are SmartSolo IGU-16 with 5Hz high sensitivity geophone designed & manufactured by DTCC, and 408 Sercel system with 10Hz 5×2 geophone strings

Test parameter:
Sample rate: 1ms
Recording length: 4s
Gain: 12dB
Reciverinterval: 10m
Source line: 40m
Source type: Dynamite @ 3 holes @ 12m interval @ 3KG

On initial review of the unstacked acquired data, the Signal-to-Noise Ratio (SNR) of the 485 geophone strings in the shot gather appear slightly better than IGU-16. However, on careful examination of the stacked section, there are no differences between the two instruments.


The test results indicate that the 408 geophone strings had slightly improved SNR on raw acquisition, but after stacking, they showed no difference from the IGU-16 single geophones. Operationally however, the IGU showed significant benefits in HSE and deployment efficiency. At only 1/3 the weight of the 408 per receiver station, the equipment could be moved more safely, and still deployed up to 50% more quickly. With these additional considerations, it was concluded that the SmartSolo was more suitable than the 408 for this type of environment.