Instruction on labor protection when servicing technological wells, pipelines at oil product supply enterprises

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Instruction on labor protection when servicing technological wells, pipelines at oil product supply enterprises

Occupational Safety and Health

Occupational Safety and Health / Standard instructions for labor protection

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Safe Operation

1. General requirements for labor protection

1.1. This instruction provides for the basic requirements for the safe operation of process wells, flumes and pipelines at oil product supply enterprises.

1.2. Accumulation of explosive gases and vapors of oil products is possible in technological wells, trays and pipelines, therefore, work carried out in these places is classified as gas hazardous and must be carried out in accordance with the "Instructions for the organization of safe gas hazardous work."

Hot work in wells, trays and pipelines is carried out in accordance with the "Instruction on General Safety Rules for Hot Work".

1.3. The tool used during work must be of a material that does not cause sparking upon impact; cutting tools must be lubricated with grease before use.

1.4. Piping for flammable petroleum products must be properly grounded to dissipate static electricity.

1.5. For internal lighting of technological wells and trays, it is allowed to use only explosion-proof rechargeable lamps with a voltage of not more than 12 V, which are switched on and off outside the wells and trays.

1.6. In the control room, a diagram of the location of ground and underground technological pipelines and locking devices installed on them should be posted.

1.7. In places of transition of service personnel through pipelines, transition platforms or bridges with railings should be installed.

1.8. It is forbidden to smoke and use open fire inside and near the well, tray.

1.9. All employees must be provided with overalls, safety shoes and personal protective equipment in accordance with applicable standards.

2. Labor protection requirements before starting work

2.1. Before performing work in technological wells, trays and pipelines, it is necessary to analyze the air environment with a gas analyzer. The results of the analysis are documented in a certificate in the prescribed form with the signatures of responsible persons.

2.2. If gas pollution exceeds the established norms, then it is necessary to determine the causes of gas pollution, and do not start repair work until they are eliminated.

2.3. Pipelines with increased gas contamination must be purged with steam or inert gas.

In case of increased gas contamination, intensive injection of fresh air is carried out into the wells.

The effectiveness of ventilation is controlled by repeated analysis of the air environment.

2.4. If there is an oil product in technological wells, trays, pipelines, it must be removed.

2.5. Before starting repair work in wells and trays, pipelines must be disconnected from all tanks and other pipelines.

3. Labor protection requirements during work

3.1. To carry out work in technological wells, trays, pipelines, a work permit is issued for carrying out work of increased danger and the following is assigned:

at least three people - when working in wells, of which two must be on the surface and constantly monitor the worker inside;
at least two people - when working in trays and on pipelines.

3.2. Work in technological wells and trays is carried out if the workers have PSh-1 gas masks, webbing safety belts and safety ropes, the length of which outside the well must be at least 3 m.

The end of the safety rope from the life belt of the person working in the technological well must be in the hands of the observer.

One of the observers during the production of work in the technological well must have a gas mask.

3.3. Trays and wells on pipelines must be kept clean, regularly cleaned and flushed with water. Accumulation of oil products in them is not allowed.

3.4. Well covers should be easily opened with special hooks made of a material that does not give sparks upon impact. Do not open covers by hand.

It is forbidden to use crowbars, pipes and other objects that can cause sparking to open and close covers of wells and pipeline fittings.

3.5. Gate valves, taps, valves should be opened and closed smoothly to avoid water hammer and pipeline failure.

3.6. It is forbidden to leave valves open on idle pipelines.

3.7. It is not allowed to clean plugs formed in pipelines with steel and other devices that can cause sparking from friction or blows against the pipe.

3.8. It is prohibited to carry out any work on the repair of pipelines and valves during the pumping of oil products.

3.9. After installation or repair, the pipeline must be blown or flushed to remove dirt, scale and foreign objects.

3.10. If an ice plug forms in the pipeline, it is necessary:

make an external inspection of the frozen area to make sure that there are no gaps and establish the boundaries of the formation of an ice plug;
disconnect the pipeline from the general system;
heating of the ice plug begins to be carried out from the ends of the frozen section;
it is forbidden to thaw a frozen section in a burst pipeline without disconnecting it from the general system. Only steam, hot water or heated sand should be used to heat the ice plug. Open flames are not allowed.

3.11. Replacement of gaskets and shut-off valves on pipelines is allowed only after pressure relief, release from the product and disconnection of the pipeline from existing pipelines.

4. Labor protection requirements in emergency situations

4.1. During the operation of technological wells, trays and pipelines, the following emergencies may occur:

increased gas content in wells and trays;
leakage of oil products through leaks in gaskets and glands in shutoff valves;
leakage of welded seams;
pipeline rupture.

4.2. In all emergency situations, workers performing work in technological wells, trays and pipelines are obliged to immediately inform the management of the enterprise or the person responsible for the performance of the work, and then act according to the emergency response plan.

4.3. If the gas content has increased during work, then the observers must remove the victim from the danger zone using protective equipment (hose gas mask ПШ-1).

4.4. In case of poisoning with toxic gases, remove the victim from the well, tray, free from restrictive clothing, provide fresh air, peace, warmth, give a sniff of ammonia.

4.5. If breathing stops, give artificial respiration.

4.6. If oil gets into eyes, rinse immediately with plenty of water.

4.7. Call for emergency medical assistance.

5. Labor protection requirements at the end of work

5.1. After inspecting the shut-off valves in technological wells or using it, the covers of the wells must be closed, after making sure that there are no people left in the well, tools and materials are removed.

5.2. Trays after inspection or repair must be closed with fire-resistant plates.

5.3. If the work performed belonged to the category of hot or gas hazardous work, then it is necessary to close the work permit for the performance of work of increased danger.

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