What
is H2S?
An
extraordinarily poisonous gas with a molecular formula of H2S. At low
concentrations, H2S has the odor of rotten eggs, but at higher, lethal
concentrations, it is odorless. H2S is hazardous to workers and a few seconds
of exposure at relatively low concentrations can be lethal, but exposure to
lower concentrations can also be harmful. The effect of H2S depends on
duration, frequency and intensity of exposure as well as the susceptibility of
the individual. Hydrogen sulfide is a serious and potentially lethal hazard, so
awareness, detection and monitoring of H2S is essential. Since hydrogen sulfide
gas is present in some subsurface formations, drilling and other operational
crews must be prepared to use detection equipment, personal protective
equipment, proper training and contingency procedures in H2S-prone areas.
Hydrogen sulfide is produced during the decomposition of organic matter and
occurs with hydrocarbons in some areas. It enters drilling mud from subsurface
formations and can also be generated by sulfate-reducing bacteria in stored
muds. H2S can cause sulfide-stress-corrosion cracking of metals. Because it is
corrosive, H2S production may require costly special production equipment such
as stainless steel tubing. Sulfides can be precipitated harmlessly from water
muds or oil muds by treatments with the proper sulfide scavenger.
What
we provide?
At
OPC we provide and install the H2S detection and safety equipment, spare parts
and necessary services for equipment maintenance, installation and removal on
the RIGS. Moreover, OPC organizes training courses tailored to clients’
specific needs to familiarize the company personnel on the use of H2S detection
and safety Equipment.