downhole seismic services

This method is a variation of the seismic refraction method employing a downhole tri-axial geophone and a surface energy source or a downhole source. The energy propagates from the source to the downhole tri-axial geophone and can be recorded as compression and/or shear waves. This method provides detailed layer velocity information and the data ...

By Ninyo & Moore based in San Diego, CALIFORNIA (USA). from Geophysical Service line

GROUND Engineering Consultants, Inc. offers a wide variety of seismic evaluations. In general accordance with the 2003 International Building Code, Seismic Site Class is to be either estimated based on the subsurface conditions at a project site or by performing actual measurement. Per recent government amendment, various municipalities, including ...

By GROUND Engineering Consultants based in Englewood, COLORADO (USA). from Specialty Services Service line

Deep Auger Borings with soil sampling and testing by Standard Penetration Test (SPT) Earthwork monitoring and fill density testing with nuclear gauges Plate Bearing Tests and CBR Ground Penetrating Radar (GPR) Downhole Seismic Tests Crosshole Seismic Tests Seismic Refraction Resistivity Ground Water Pumping Tests Piezometer installation and ...

By Jaca & Sierra Testing Laboratories Psc. based in San Juan, PUERTO RICO.

Geophysics for engineering.Seismic assessmentMASWDownholeResistivity

By RDCL based in NEW ZEALAND.

RIZZO conducts various geophysical tests at project sites in support of site response analysis, including surface surveys and downhole loggings. RIZZO performs high-resolution seismic surveys to evaluate shallow subsurface geology, as well as to delineate and verify possible Quaternary faulting. RIZZO also performs full scale seismic hazard ...

By RIZZO Associates based in Pittsburgh, PENNSYLVANIA (USA).

EMC has over 20 years of seismic acquisition and processing experience. We utilize the most advanced techniques for determining velocities and site characteristics. We’ve been involved in many engineering studies and can collect the necessary information for determining Poisson’s ratio. EMC also has experience with MASW seismic ...

By Earth Measurement Corp. based in Cypress, TEXAS (USA).