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Seismic solutions for oil and gas

Guralp manufactures a range of broadband seismic instrumentation suitable for oil and gas applications in exploration, permanent reservoir monitoring and hydraulic fracture monitoring.

A bespoke solution

From individual instruments on a purchase or hire basis, to a fully serviced solution, we can develop a package of work to suit your requirements. To complement our extensive range of instrumentation we can assist you with:

  • Network design
  • Installation and commissioning
  • Data management and processing
  • Ongoing maintenance and field support

life of field rig 300 x 200



Güralp instruments are well suited for early exploration of oil and gas reserves.


Passive surveys are a rapid, cost effective method of delineating the structure of large-scale subsurface targets to assist in building a business case for an active survey. Key information such as coarse velocity profiles and depth to basement can be obtained from as little as one overnight survey. We have extensive experience of deploying our instrumentation in form factors suitable for surface, borehole and sub-marine applications.


Güralp seismometers can also be used to complement dense arrays in active source surveys using broadband sources (e.g. vibroseis/marine airguns) for large depth penetration and full-waveform imaging.

Our broadband technology is suitable for monitoring the widest range of sources from ambient noise and microseismic activity to distant or teleseismic events.

OBS deployment

Permanent Reservoir Monitoring

Permanent reservoir monitoring (PRM)

In recent years there has been increased interest in obtaining 4D seismic data in order to understand how reservoirs change over time with the potential to enhance hydrocarbon recovery.

Güralp Broadband seismometers can be used for a range of solutions for life of field monitoring both onshore and offshore. Working with you and your preferred partners we can provide equipment, services and turn-key solutions for temporary and permanent reservoir monitoring.

Suitable for both active or passive sources, our broadband instruments can deliver insight into overburden integrity and wellbore stability as part of a reservoir integrity management plan to maximise production from ageing fields.


Our cabled and nodal systems have been deployed in numerous countries in Europe, North America, South America, Australasia and Asia for national and international oil companies. We have deployed a wide range of solutions optimised for each application including surface, borehole and ocean bottom instrumentation, remote nodes and real-time cabled or wireless networks.

Optimise and Project

As well as reservoir monitoring, our instrumentation can serve a dual role in subsea hazard mitigation by detecting shallow gas pockets, induced seismicity and seafloor stability. EEW capabilities with ultra-low latency features can also be used for automated shut-down procedures in areas of seismic risk.

borehole PRM 210 x80

Fracture Monitoring

Fracture Monitoring

Güralp has developed an integrated service solution for well locations where hydraulic fracturing compliance monitoring is a requirement.


Güralp Event-IQ is a fully integrated solution that incorporates baseline, operational and post operation seismic monitoring. The solution includes a real-time traffic light system that will trigger if induced seismicity exceeds specific levels pre-selected by the operator.

A Cost Effective Solution

The key benefits of Event-IQ is that by using technically advanced processing, we can deliver these services with a small surface array of instruments making Event-IQ a truly cost effective solution.

To read more about the Event-IQ system, view our Event-IQ brochure for hydraulic fracture monitoring. UK Operators may be interested in reading the UK version of the Event-IQ brochure which responds specifically to UK compliance requirements from DECC and UKOOG.

Other services

We also provide systems and services for monitoring waste water injection wells, including both hardware and data processing services.
Guralp have provided frac monitoring solutions in Europe, North America, South America and Asia.




Guralp Systems Limited
Midas House
Calleva Park

Tel: +44 118 981 9056
Fax: +44 118 981 9943