Sentences with phrase «wells during the drilling process»
But the research detected no trace of the chemicals injected into or removed from wells during the drilling process called hydraulic fracturing or «fracking.»
https://dotearth.blogs.nytimes.com/ Not exact matches
Typically, during the drilling process, methane emissions are estimated to be between 0.04 and 0.3 gram of methane per second per well.
The panel said companies should measure and publicly report the use and disposal of water during the drilling process, and it urged companies to start sharing information on best practices in building and maintaining wells.
He said regulators have always thought that there are few emissions during the drilling process, but when drilling rigs drill through shale layers containing a lot of natural gas, a pressure pulse will send gas out of the well and into the atmosphere.
This feature manifested itself during the drilling process when a pressure sensor in the well indicated that hydraulic connection with the ocean cavity had been achieved whilst the drill head was still many tens of metres above the true base of the shelf.