In situ Thermal resistivity test. Shabla, Bulgaria.

In situ Thermal resistivity test. Shabla, Bulgaria.

In situ Thermal resistivity test. Shabla, Bulgaria.

Analysis of surface waves. İskenderun, Turkey.

Analysis of surface waves. Gölbaşı, Turkey.

Analysis of surface waves. Kahramanmaraş, Turkey.

Downhole test. Sofia, Bulgaria.

Downhole test. Sofia, Bulgaria.

Downhole test. Sofia, Bulgaria.

2D analysis of surface waves at Varna West Port. Varna, Bulgaria.

2D analysis of surface waves at Varna West Port. Varna, Bulgaria.

2D analysis of surface waves at Varna West Port. Varna, Bulgaria.

Downhole test. Sofia, Bulgaria.

Downhole test. Sofia, Bulgaria.

Downhole test. Sofia, Bulgaria.

Pile integrity test and ultrasonic test. Varna, Bulgaria.

Pile integrity test and ultrasonic test. Varna, Bulgaria.

Pile integrity test and ultrasonic test. Varna, Bulgaria.

Pile integrity test and ultrasonic test. German embassy. Sofia, Bulgaria.

Pile integrity test and ultrasonic test. German embassy. Sofia, Bulgaria.

Pile integrity test and ultrasonic test. German embassy. Sofia, Bulgaria.

Vertical electrical soundings as support for earthing system design at the thermal power station CTCC. Tula, Mexico.

Vertical electrical soundings as support for earthing system design at the thermal power station CTCC. Tula, Mexico.

Vertical electrical soundings as support for earthing system design at the thermal power station CTCC. Tula, Mexico.

Seminar of electrical geophysical methods applied to agriculture. Agricultural University. Plovdiv, Bulgaria.

Seminar of electrical geophysical methods applied to agriculture. Agricultural University. Plovdiv, Bulgaria.

Seminar of electrical geophysical methods applied to agriculture. Agricultural University. Plovdiv, Bulgaria.

Seismic refraction surveys for the characterization of the materials for the construction of the hydroelectric Project 'Coca Codo Sinclair'. Napo province, Ecuador.

Seismic refraction surveys for the characterization of the materials for the construction of the hydroelectric Project 'Coca Codo Sinclair'. Napo province, Ecuador.

Seismic refraction surveys for the characterization of the materials for the construction of the hydroelectric Project 'Coca Codo Sinclair'. Napo province, Ecuador.

Seismic refraction, surface wave analysis, electrical resistivity tomographies and vertical electrical soundings for the geophysical characterization of the materials for the construction of the dam project 'TUY IV'. Estado Miranda province, Venezuela.

Seismic refraction, surface wave analysis, electrical resistivity tomographies and vertical electrical soundings for the geophysical characterization of the materials for the construction of the dam project 'TUY IV'. Estado Miranda province, Venezuela.

Seismic refraction, surface wave analysis, electrical resistivity tomographies and vertical electrical soundings for the geophysical characterization of the materials for the construction of the dam project 'TUY IV'. Estado Miranda province, Venezuela.