Views: 71 Author: Site Editor Publish Time: 2021-01-21 Origin: Site
Oil exploitation refers to the whole process of extracting crude oil from the oil layer to the surface to the maximum extent according to the design requirements of the oil field development after the oil well is drilled and applying various oil production technology. There are many hidden dangers in this process, because there are flammable and explosive materials, high-pressure pipes controlled by forged steel valves, toxic substances and electricity.
An oil production mine is a place where flammable and explosive materials in oil fields are concentrated. During perforation and operation, due to improper selection of killing fluid or improper operation measures, a blowout fire accident may occur when the wellhead is out of control. Such as oil and natural gas pipelines, oil and gas separation, gathering and transportation devices, oil tanks and water jacket furnaces leakage and roofing occur, and the fire can occur as soon as the fire source is encountered, and it is likely that the initial firefighting measures are ineffective and finally cause a major accident. At the same time, various working materials used in oilfield production, such as various oils, paints, plastics, organic compounds, wood, acetylene, hydrogen and oxygen are flammable and explosive, so there is also a hidden danger of fire and explosion accidents.
Petroleum mining operations require frequent opening and closing of various high-pressure forged steel valves and handling pipeline blockages and leakage accidents. Due to the improper position of the operator or improper operation, in the event of mechanical failure and abnormal conditions in the high-pressure pipeline, the valve screw may fly out, the pipeline collapses, and the medium may eject, resulting in casualties. The underground operation site is narrow, and workers must work under the lifting system and heavy objects, which is easy to be injured by falling heavy objects. The pipe pliers, sledgehammer, cat head rope and other tools used can damage the human body when the slide buckle breaks. Most of the oil production is a mobile field operation, and various equipment and facilities are often relocated and installed, which also increases the unsafety of construction.
Although the perforating bullets used in perforating operations have good ground anti-blast and shock resistance, but during storage, transportation and use, if the detonating cord and detonator are mixed or connected, under certain conditions, a ground explosion will still hurt people accident. The dumb cannon used in the wellhead can explode and hurt people if not handled properly. Similarly, there are such hidden dangers in explosion workover.
In the case of injection-production systems, underground electrical equipment and on-site lighting lines operating in wind, snow, rain, fog, or severe oil, water, and mud leakage, once the insulation and sealing performance of the ground equipment is not good or leakage of lamps and instruments can easily cause electric shock. The first-aid conditions for field operations were poor, and deaths from electric shocks also occurred.
If natural gas leaks are encountered in oil well production operations, in this case, even if there is no explosion, it will cause air pollution. Chemical treatment operations such as acidification, fracturing, sand control, water blocking and others commonly use acid liquids, polymers and some additives, which are prone to poisoning accidents caused by exposure to poisoning and environmental pollution if handled improperly. In addition, the use of hydrochloric acid to remove ferrous sulfate deposits in the chemical treatment of descaling and deblocking of ground gathering pipelines can cause hydrogen sulfide poisoning.
At present, the radioactive materials used in domestic petroleum exploration and development of radioactive logging are sealed. If the operation and management are improper during transportation, storage, loading and unloading, and use, the site staff will be exposed to excessive radiation and pollute the environment.
This passage introduces the hazards caused by flammable and explosive materials, high-pressure pipes controlled by forged steel valves, toxic substances, electricity leakage and radioactive materials. Hopefully, this can be helpful.