Wireless Seismic Expanding in Marketplace

Posted: June 13, 2012 in Uncategorized
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By LOUISE S. DURHAM, EXPLORER Correspondent

Cable-free node deployed near Pecos in the Permian Basin in west Texas. Photos courtesy of FairfieldNodal

Seismic data acquisition systems dubbed cableless, wireless, cable-free, no-cable, etc. were viewed as a kind of novelty in the industry only a few years ago.

That has changed dramatically as the success stories emanating from increased numbers of field applications are being reported evermore often.

It had to happen, not just offshore but also on land in particular.

Think about seismic crew members traipsing around rugged, inhospitable terrain lugging the heavy, cumbersome cables and accompanying equipment required by cable systems, the longtime industry stalwart.

Then consider the cost and time to load and move all of this weight via helicopter – a transport frequently necessary to reach the often-inaccessible areas where data must be acquired.

There are other issues.

Besides the potential to leave an undesirable environmental footprint using cable systems, gnawing sharp-teeth varmints feast on these wires wherever possible – troubleshooting, anyone?

Even ordinary thunderstorms pose a risk.

“A lot of wire on the ground is a big problem where you have thunderstorm activity because of the static it generates into the cable,” said Darin Silvernagle, vice president of technology at SAExploration, or SAE, (nee NES LLC). “When you have 400 miles of wire laid out on the ground, static can be a big problem.”

The available cableless, i.e. nodal, land systems include the FairfieldNodal ZLand® system and its transition zone, shallow water counterpart Z700, INNOVA HAWK®, Sercel UNITE and OYO GSR, among others.

Nodal systems are designed to meet a number of industry needs:

  • More flexible acquisition geometries, e.g. wide and full azimuth for land surveys.
  • Reduced downtime and maintenance.
  • Increased productivity.
  • Improved health, safety and environment conditions (HSE).
  • Enhanced access to challenging locales.

To read more CLICK HERE
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