Geophysics

• refractive seismic: This test uses seismic waves to determine the mechanical properties of soil layers.
• Electrical resistivity tomography (ERT): Method It measures variations in the resistivity of the subsoil, which allows identifying layers of soil and rock, as well as the presence of groundwater or contaminants.
• Vertical Electric Probing (SEV): Geophysical method that measures how the electrical resistivity of the soil varies with depth.
• The Multi-Channel Surface Wave Analysis (MASW) and Multi-Array Microtremores (MAM): They are seismic methods that use surface waves generated by a controlled source to analyze the velocities of the cut waves (S waves) in the subsoil.

With state-of-the-art technology, with equipment that ensures an operationally reliable service to our customers:

• Measurement and verification of the probing path by means of a digital gyroscope (azimuth and tilt)
• Measurement, processing and determination of the orientation of structures by optical TV and acoustic television
• Sonic or acoustic velocity profiles applied to the determination of complex and shear velocities, through the use of the sonic probe
• Measurement of the average diameter of the drilling well using the three-arm mechanical caliper probe.

Probes that allow obtaining high-resolution oriented images of the inside of the probing, allow guiding structures from 1 mm such as joints, faults, veins and dikes.

The OPTV is used primarily in dry wells and BHTV is used in fluid wells. in perforations with or without witness recovery. There are no angle restrictions (oriented and vertical wells from -45° to -90).

RESULTS:

• Detailed and oriented structural information.
• Classification of structures according to the geotechnical logging
• conventional
• Well deformation.
• Fracture detection and evaluation.
• Break analysis in faults and fractures.
• lithology characterizations.

• Sonic or acoustic velocity profiles build a technique that uses acoustic transducers to transmit ultrasound waves through the fluid of the wells and inside the rock that surrounds them. The sonic profiles constitute a record of the travel time of these waves.
• RESULTS:
• The application of sonic registers allows to determine in-situ the compression and shear speeds, to calculate the mechanical properties of the rock (VP and VS). Also with this register, fractured zones and the permeability of these structures can be detected through the use of Stoneley wave amplitude, lithological correlation, quality control of the cementation or grouting of coatings.