Core drilling is a method of drilling that involves using a special drill bit and drill to remove a cylindrical core of material. This technique is often used in construction and other industries to create holes.
[pdf] The bodies of five workers, including one Texan, were recovered Tuesday after an explosion ripped through a drilling rig in Oklahoma, triggering what appears to be the nation's deadliest oil and gas accident since the 2010 Deepwater Horizon disaster in the Gulf of Mexico.
[pdf] After an oil field accident, seek medical attention, report the incident to your supervisor, document the scene and injuries, and consult an experienced oil field accident lawyer for legal guidance. Here’s a detai.
[pdf] 
