Researchers perform sediment coring operations on a lake in East Greenland. The work is part of a project carried out to reconstruct the paleoclimate and glaciation history of Greenland.
Thermally enhanced grouts have been widely used for ground source heat pump installations. There are a number of versions of these products on the market today, and more are being studied and developed as of this writing.
Drilling requirements for blasthole projects need to be carefully weighed in order to select the proper drill rig to meet all the needs of a particular operation.
"In the 1960s, my dad and I were drilling oil wells in southeastern Kansas. Drilling was much simpler then – one rig, a water truck and maybe a pickup. Many times when we were drilling a long distance from our base of Chanute, Kan., we would take our motorhome that Bess and I built from a Metro Milk truck."
Earlier this year, Nicholson Construction Co. finished the construction of a double-line grout curtain at the Howard A. Hanson Dam in western Washington State. This high-profile project was completed under a very strict schedule and heavy public scrutiny.
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