In 2010, The Geophysical Institute of Israel was awarded the tender to conduct a 2D seismic acquisition project for oil investigation in western basins of Democratic Republic of Congo (DRC), on behalf of EnerGulf (Houston, Texas, USA).

The project consisted had a total length of 203 line kilometers, most of which passed through dense jungle. Due to the difficult accesibility situation and the inclination to preserve the natural rainforest, the GII opted for use of dynamite as seismic energy source. Roughly 3,400 shallow shot holes were drilled using custom built portable man held and tractor mounted drills. The project incorporated more than 350 local workers and over 20 local sub-contractors and service providers who were trained to work safely and efficiently on seismic teams. 

In 2008 the GII executed a 2D seismic acquisition and processing project in Albania for DWM a subsidiary of MANAS Petroleum Corp.

The project took place just north of Tirana, within Blocks A & B up to the northern city of Shkodra. The survey consisted of 190 line kilometers using Vibroseis seismic sources. The survey area included many small villages, towns and parks. The GII was especially focused on maintaining the environmental equilibrium and keeping interference to daily life of the community to a minimum.

• MBA, Peres Academic Center, Israel
• BA, Economics and Management, College of Management, Israel

• Ph.D. Geophysics, Institute of Earth Sciences, Hebrew University, Jerusalem
• M.Sc. Geophysics, Dept. Of Geophysics and Planetary Sciences, Tel‑Aviv University, Tel Aviv
• B.Sc. Geology, Dept. of Geology, Hebrew University, Jerusalem

• MBA from the Center of Academic Studies, Israel
• BA in Business Management from Derby University, UK

The GII is proud to partner with GEPlan Consulting for providing geophysical acquisition, processing and interpretation in Italy. 
www.geplan.it

The GII is proud to update its quality management system to ISO 9001:2015 and provide consistent-top-quality Geophysical Services to it's clients.

Seismic down-hole surveys provide the client with a 1D high-resolution profile of seismic velocity variations at various depths of soil and rock in high-resolution.

Seismic velocities are correlated to changes in rock/soil properties, such as hardness and density and applications include:

• Foundation analysis
• Rock properties
• In-situ soil testing
• Earthquake engineering 
• and more...

Down-hole surveys applied together with Seismic Refraction and Site Effect surveys can create a high-resolution model covering large areas.

The Down-Hole method is a quick and simple operation, in one day 2-4 wells of approximately 30-100 meters depth can be recorded (depending on the measurement interval). A special borehole-geophone is inserted into the borehole and a drop hammer is activated on the surface as a seismic source. As the geophone is lowered, an interval velocity profile is created. The data can be correlated to lithological data and refraction surveys.

Next steps will include Advanced Processing and Interpretation of the seismic data.

Contact us to determine the right design, layout, timeline and crew size for your project’s needs.

Main Technologies

Seismic Sources

• Sledge Hammer
• Accelerated Weight Drop (AWD)
• Weight Drop

Recording Systems

• Geometrics Geode data acquisition reciever system 
• 3C (three axis) borehole geophones with clamp and orientation tools

Ancillary Equipment

• Portable and 4x4 tractor mounted shot-hole drilling rigs
• GPS Systems: Trimble R-10 GNNS, Topcon 7505 and BR3, Garmin handhelds