The standard for marine OBN acquisition
The Z700® marine nodal seismic data acquisition system can be used as an effective and efficient alternative to traditional acquisition systems in open seas or in obstructed areas. The Z700 system also allows you to take advantage of survey designs that enable longer offsets, richer azimuths, higher fold and longer record lengths to produce a superior dataset.
The flexibility of the Z700 nodal system allows the 4C nodes to be accurately placed on the seafloor anywhere from the shoreline to deeper waters, with any receiver line lengths or line intervals desired. The nodes can be placed next to subsurface obstructions to ensure that gaps in the dataset are minimized.
Working with towed streamers in areas with obstructions is extremely difficult, forcing you to compromise on acquisition design, data coverage and, ultimately, data quality. A typical towed-streamer survey leaves a hole of many square kilometers around a surface obstruction. Traditional OBC systems are limited by water depth and seafloor conditions, as well as being limited by fixed-group sensor intervals and line lengths, resulting in poor spatial sampling.
Each Z700 node operates autonomously, continuously recording data for up to 60 days, and features a chip-scale atomic clock for industry-leading timing accuracy and close to 100% data integrity.
Great data for a lot less than OBC
The nodal design of the Z700 defines this revolutionary system, giving you outstanding flexibility and allowing you to record all of the low-noise, high-quality data you need with confidence, even under the most adverse conditions. With no restrictions on the number of nodes deployed, the Z700 is perfectly suited for full-azimuth marine surveys. In shallow water depths, the Z700 nodes can be individually deployed from small vessels. In waters greater than about 10 meters, a larger vessel may be equipped with an automated, node-handling back deck system. The use of a strong passive rope ensures a quick and efficient recovery of the units from the seafloor.
The Z700 marine nodal system is available for sale worldwide.
A typical FairfieldNodal deployment
Trouble-free marine seismic
- Easily positioned in and among obstructions – no gaps
- Entirely self-contained – no external power supply or sensor
- No troubleshooting of spread
- Greater productivity and channel count
- Two-vessel operation – one node-handling vessel and one shooting vessel
- Deployment and retrieval more efficient and faster than OBC
- Requires half the crew of conventional OBC shoot
- Quick, safe and easy retrieval via a passive recovery rope system
- Simultaneous data download and battery recharging