- Specifically designed for HR borehole surveys
- Fast and simple infield operations
- High sensitive piezoceramic sensors
- Small diameter and light weight
- Compatible with any seismograph
WellStreamer is a borehole hydrophone array, specially developed for seismic acquisitions in the water-filled wells. We designed exceptionally easy to use and robust receiver array with high sensitive piezoceramic sensors for registering compressional (P) waves during VSP and cross hole surveys.
WellStreamer can be supplied in various configurations, starting from single channel and up to 48 units with typical separation of 1 m or 2 m.
Mounted on a reel with a slip ring, which can be ordered with the streamer, it provides easy to operate data acquisition solution without spending time on unplugging equipment during cable operations.
VSP and crosshole data processing requires efficient and sophisticated processing flow. RadExPro seismic software provides all necessary algorithms for multi-component data processing – hodogram analysis, 2C/3C component orientation, wavefield separation, velocity modelling, corridor stacking and well tie to reflection seismic data. Velocity model, Quality factor and other attributes can be estimated by seismic tomography in ZondST2d and ZondST3d software. Geodevice provide processing and consultancy services.
Examples of data, acquired by GStreamer and processed in RadExPro software and ZondST2d are shown below.
|Frequency range||1 – 10 000 Hz|
|Capacity of piezoelectric element||4 000 pF|
|Maximum pressure||60 at|
|Breaking pressure||100 at|
|Supply voltage||12-16 V|
|Current consumption per channel||10±1 mA|
|Output impedance of the preamplifier||395 Ohm|
|Maximum value of the output signal||±3.8 V|
|Operating temperature range||-10 ÷ +70 °С|
|Storage temperature range||-40 ÷ +70 °С|
|Diameter of the hydrophone module||42 mm|
|Length of the hydrophone module||200 mm|
|Weight of the hydrophone module||300 g|
|Interval between hydrophones||on request, but ≥ 0.25 m|
|Braiding of a cable||polyurethane|
|Longitudinal cable sealing||+|
|Screening of cable and hydrophone module||+|
|Operating load||200 kg|
|Breaking force||400 kg|
|Cable diameter||13 mm|
|Minimum cable coiling radius||120 mm|
|Minimum coiling radius of the active section||220 mm|
|Cable Weight||168 g/m|
|The weight of a streamer length of 130 m with a reel||38 kg|
|Dimensions with reel||500×600×400 mm|
|Maximum cable system length||700 m|
|End Connector||by agreement|
|End load||the lower end of the cable system is equipped with a weight-bearing loop;
load can be supplied as agreed