Seismic DrillingSeismic Drilling provides an exploration technology to identify oil and gas formations. In most cases seismic shots or charges are discharged.
Location and coordinates are pre-determined by the client geologists and marked by pin flags or lath.
Holes are generally 20-60 ft deep and range from 3-4 inches in diameter.
The holes are drilled and explosive charges are primed with detonator loaded to the bottom. Once plugged the detonators are shunted.
Upon exploding the charges, receivers or sensitive microphones referred to as geophones pick up the reflected signals. These signals are recorded on magnetic tape and sent to data processor where they are adjusted for known distortions generating the data in industry standard stacked form.
The portability of the Energold-Dando Terrier and its design as a multipurpose drilling rig means its one of the ideal tools for the job. The rig can deploy SPT (standard penetration test), CPT (cone penetration testing), dynamic probing and undisturbed sampling techniques for geotechnical investigation. The rotary mast attachment for the Dando Terrier extends the rig's range of use to include continuous flight and hollow stem augering, tricone & drag bits and rotary core drilling as well as DTH hammers.
Occupying a very small footprint, the rig is easy to transport and can be manoeuvred through very tight spaces with difficult access- it is even small enough to fit through a standard doorway. Ideal for sensitive sites with concerns of minimizing environmental impact of seismic lines.