California’s State Route 1 is one of the most scenic routes in the world. However, the Big Sur coastline along this highway also is geologically active and unstable. Broken and weak rocks are covered with eroded soils that are highly prone to landslides. As a result of ground water, surface water infiltration, erosion and storms, this area – and particularly Pitkins Curve – has been in constant need of repairs since 1937. Extensive studies revealed that landslides and resulting highway damage would continue to occur indefinitely without a comprehensive solution. Therefore, Caltrans determined that the safest and most cost-effective solution would be to bridge Pitkins Curve, and build a rock shed at Rainrocks, a neighboring area of roadway instability. Golden State Bridge Inc., based in Martinez, Calif., won the $29.4-million contract, and has been on the job since December 2009.
In order to comply with Florida’s increasing demands for energy while ensuring reliable supplies of natural gas, the Florida Gas Transmission Co. currently is expanding its pipeline network. The “Phase VIII Expansion” project adds 480 miles of pipeline to the network.
There are a number of reasons that drillers have the need to buy another string of drill pipe. Whatever the reason, when selecting new or used pipe, an understanding of what the pipe actually is and does can help.
"So
far in this series, we have examined two of the three factors to be considered
when determining the pressure requirements of a pump – household working
pressure and lift pressure. The third factor is pressure drop due to friction
loss/"
"Over the past few years, ground source heating/cooling
using vertical loop installations has taken over our industry, and has provided
a great new opportunity for many of us in the water well and drilling industry."
RSS