Where in The Petroleum Industry Rubber Seals Are Used

Rubber seals are widely used in the petroleum industry, and here are some of the main applications:

Petroleum exploration and exploitation

Drilling equipment

Mud pump: When transporting mud, the rubber piston ring seals between the piston and the cylinder liner of the mud pump to prevent mud leakage, ensure normal mud transportation, maintain pressure, and ensure the smooth progress of drilling operations.

Faucet: The faucet is a key component connecting the drill pipe and the mud circulation system, and the rubber seal is required to ensure that the mud will not leak from the connection under high-speed rotation, at the same time, the drill pipe can rotate flexibly.

Oil production equipment

Oil pump: When the oil pump is working downhole, the plunger and the pump barrel are sealed by a rubber sealing ring to ensure that crude oil can be pumped to the surface efficiently during the pumping process, reduce leakage, and improve oil recovery efficiency.

Wellhead device: Rubber sealing gaskets and O-rings are commonly used to prevent oil and gas leakage and ensure the sealing and safety of the wellhead in the connection parts such as valves and flanges at the wellhead.

Petroleum transportation link

Oil pipelines

Pipeline connection: At the flange connection part of the oil pipeline, a rubber sealing gasket must be installed to fill the slight unevenness of the flange surface, form a reliable seal under bolt tightening, and prevent crude oil from leaking at the pipeline connection.

Valve sealing: All kinds of valves on oil pipelines, such as ball valves, butterfly valves, etc., are often sealed with rubber materials between the valve seat and the ball or valve plate to ensure that the oil flow can be effectively cut off when the valve is closed to prevent leakage.

Oil tankers and tank trucks

Loading and unloading port: The oil tanker's loading and unloading port and oil outlet and inlet need to use rubber sealing rings to ensure that oil does not leak from the interface during the loading and unloading process, ensuring the safety of transportation.

Tank sealing: To prevent the oil from shaking and overflowing during the transportation of the tank of the tanker, the breathing valve and manhole on the top of the tank need to be sealed with rubber seals to keep the pressure in the tank balanced and prevent oil leakage.

Petroleum storage

Above-ground oil tanks

Tank top breathing valve: When the oil tank is storing oil, the pressure in the tank will change due to the oil in and out and the temperature change, the tank top breathing valve controls the pressure balance in the tank through the rubber seal, and when the pressure in the tank changes, the rubber valve disc automatically opens or closes, allowing gas to enter and exit, and preventing oil leakage.

Manhole and manhole: When the manhole and manhole of the oil tank are closed, rubber sealing washers are used to ensure the sealing effect and the gaskets are usually made of oil-resistant and aging-resistant rubber materials, which are installed on the edge of the hole cover and fastened by bolts to prevent oil leakage from the opening.

Underground oil depots

Pipeline interface: At the connection interface between the oil pipeline and the oil storage tank of the underground oil depot, rubber seals should be used to ensure the tightness of the oil depot and prevent oil leakage from polluting the soil and groundwater.

Tank sealing: The welding seams and other parts of the tank body of the underground oil storage tank itself are sometimes used to assist in sealing with rubber sealant and other materials to enhance the overall sealing of the tank.

Petroleum processing

Oil refining equipment

Reactor: In various reactors of petroleum refining, such as hydrogenation reactors, catalytic cracking reactors, etc., rubber seals with high-temperature resistance, high-pressure resistance, and specific medium corrosion resistance are required to be used in their inlet and export, flange, manhole, etc., to ensure the tightness of the reactor and prevent the leakage of reaction materials and products.

Heat exchanger: The heat exchanger is used for heat exchange of different temperature media, the connection between the tube bundle and the tube sheet, the inlet and outlet flanges, and other parts need to be well sealed, and the rubber sealing gasket can effectively prevent the leakage of the medium and ensure the heat exchange efficiency and operation safety of the heat exchanger.

Chemical plants

Separation tower: In the petrochemical separation tower, rubber seals need to be used at the top of the tower, the bottom of the tower, and the discharge port of each sideline to prevent oil and steam leakage, and the temperature and pressure conditions of different parts are different, so it is necessary to choose suitable rubber materials.

Storage containers: All kinds of containers for storing petrochemical products, such as liquid storage tanks, metering tanks, etc., also need rubber seals to ensure the tightness of the containers and prevent product leakage and volatilization.