Boilersinfo Boiler and Mechanical Power Digital Library
QHSE , Health and Safety HSE in oil & Gas industry and petroleum engineering an refineries are available here.
UOP Inspection Training Manual Volume 1
UOP Inspection Training Manual Volume 2
Drilling HSE Manual Shell 1995
Personnel Protection and Safety Equipment for the Oil and Gas Industries
Shlumberger QHSE manual
Topics in Safety Risk Reliability