“We can confidently bid on larger jobs - 200-foot plus wells using 8-10 inch casing. “An area where the 8140 struggled - dry coring through fine, tightly packed hard sands - the 8150 just continuously moves forward,” Bishop said. So they traded their older 8140 in and purchased a Geoprobe ® 8150LS sonic rig to open up new markets using the sonic drilling method.
The company sought increased confidence to run larger diameter casing to deeper depths and knew using the 8140 in certain conditions could be challenging. “Our site footprint has gotten smaller and our daily production has gotten faster with the arrival of the Geoprobe ® track sonic rigs,” Bishop said. Having been in the sonic game for nearly two decades, Bishop credits the arrival of the Geoprobe ® sonic rigs with increased productivity. The company, servicing primarily Florida, occasionally sneaks into South Georgia, Alabama, or Mississippi, typically keeping seven to eight of their rigs running. “Through the years we transitioned to 7822DT for most of the conventional work, including installation of permanent PVC casings and mud rotary drill outs,” Nick Bishop, purchasing, said. Using a range of rigs to complete an array of environmental projects - direct push soil and water sampling, conventional monitoring wells, deep sonic wells, small and large injection projects, and site abandonments - the 35-year-old DrillPro LLC, better known as Groundwater Protection, once focused on SPT and hollow stem augers on traditional truck-mounted rigs.
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