What are the Safety Measures for Oil Pipelines?

 What are the types of oil pipelines?

Generally speaking, there are two types of oil pipelines: carbon steel pipes and oil-resistant rubber hoses. Many of the fixed oil pipelines we see now mostly use carbon steel pipes, while oil-resistant steel pipes play an important role in the temporary loading and unloading of active parts of oil transportation facilities. In carbon steel pipes, it can also be divided into seamless steel pipes and welded steel pipes according to different manufacturing methods, and seamless steel pipes are also divided into hot rolled and cold drawn.

What are the safety measures for oil pipelines?

Oil pipeline is an important part of modern energy transmission, it carries a large amount of oil and natural gas resources, so safety issues are particularly important. In order to ensure the safe operation of petroleum oil pipelines, a series of strict safety measures need to be taken. This article will introduce some common oil pipeline safety measures.

1. Quality engineering design and construction.

The design and construction of petroleum oil pipelines should follow relevant standards and specifications to ensure the strength, stability and corrosion resistance of pipelines. In the design stage, factors such as transmission distance, transmission capacity, geographical environment and geological conditions need to be considered to determine the appropriate pipeline diameter, thickness and support structure to ensure that the pipeline can withstand the expected pressure and external environment.

2. Regular pipeline monitoring and maintenance.

Oil pipelines require frequent inspections and maintenance to detect and deal with potential problems. Leak detection is the key link. By using high-precision leak detection technologies, such as gas detection, liquid flow meters and smart sensors, pipeline leaks can be detected and located early. In addition, using remote sensing technology and drones and other modern technical means, it is possible to conduct a comprehensive inspection of the pipeline, find out the abnormal condition of the pipeline in time, and take corresponding maintenance measures.

3. Anti-corrosion and heat preservation measures.

Due to the high temperature and corrosiveness of oil and natural gas, oil pipelines need to take measures for anti-corrosion and heat preservation to prolong the service life of the pipeline and ensure safe operation. Common anti-corrosion insulation materials include epoxy coating, polyethylene film, rock wool, etc. These materials can effectively isolate the influence of the external environment and media, and protect the pipeline from corrosion and temperature changes.

4. Emergency response planning and training.

Developing an emergency response plan is the key to ensuring rapid response and action in the event of an emergency. The plan should include procedures for dealing with various accidents such as spills, fires and explosions, specifying responsibilities and action steps. In addition, train relevant personnel to improve their emergency response capabilities and accident handling skills to minimize losses and risks.

5. Safety supervision and regulatory compliance.

The government and relevant regulatory agencies should strengthen the safety supervision of oil pipelines, formulate and implement relevant regulations and standards, and require enterprises to abide by safety regulations and operating procedures. Violations should be punished in accordance with the law to maintain the safety and stability of the entire oil pipeline industry.

6. Environmental awareness and measures.

Oil pipeline transportation may involve some sensitive environmental areas, such as waters, forests and ecological protection areas, so it is necessary to attach great importance to environmental protection. During the design and construction stages, damage and pollution to the environment should be avoided as much as possible, and the pipeline layout should be planned reasonably. During the operation period, an environmental monitoring system should be established to regularly detect and evaluate the environmental impact during transportation, and take corresponding measures to repair and compensate.

7. Information technology application.

With the development of information technology, its application in oil pipeline safety management is becoming more and more important. For example, through the establishment of a remote monitoring system, real-time monitoring and data analysis of pipeline operation status, timely detection of abnormal conditions and take measures. At the same time, big data, artificial intelligence and other technologies are used to predict and evaluate the operational risks of pipelines, and take measures in advance to avoid accidents.

8. International cooperation and experience sharing.

Oil pipeline safety is a global issue, and countries need to strengthen cooperation and experience sharing. Through joint formulation of standards, technical exchanges, and training cooperation, etc., we will promote the improvement of the safety management level of oil and oil pipelines, jointly meet challenges, and ensure the safety and reliability of energy transmission.

To sum up, oil pipeline safety measures cover many aspects, including engineering design, monitoring and maintenance, anti-corrosion and heat preservation, emergency response, regulatory compliance, environmental protection, information technology application, and international cooperation. By taking these measures comprehensively and effectively, the safe operation of oil pipelines can be ensured to the greatest extent and reliable support for energy supply can be provided.

https://www.steelweldedpipe.com/news/what-are-the-safety-measures-for-oil-pipelines-148380.html

Causes of rust and discoloration of carbon steel pipe and preventive measures

 The reasons for the rusting of carbon steel pipes are as follows:

1. Medium that causes product corrosion

Moist air, hand sweat or dirt from product contact, water, acid, alkali, salt and chemical gases remaining on the metal surface may cause metal corrosion.

2. Corrosion resistance of metal

Metals that are prone to rust include pig iron, carbon steel, and structural alloy steel. Stainless steel, high-temperature alloys, and titanium alloys will rust in special environments.

3. Parts prone to rust

The parts that are easy to contact, adhere to and accumulate corrosive substances include grooves, seams, holes, edges, joint surfaces, hand contact surfaces, parking surfaces, etc., or rough surfaces, newly processed surfaces, sandblasting polished surfaces, etc., which are prone to corrosion. rust.

4. Corrosion-prone environment

Generally speaking, processing workshops such as pickling, heat treatment, electroplating, welding, painting, electrolysis, etc. are more prone to corrosion than mechanical processing workshops, because these workshops have a large amount of corrosive media.

Protection methods for carbon steel pipes:

The rust of carbon steel has a great influence on its appearance and service life, so rust prevention is very necessary. The following are several common carbon steel rust prevention methods:

1. Passivation

Rust is prevented by passivation. Passivation treatment is to form a protective oxide layer on the surface of carbon steel, which can prevent the steel from being further corroded by the environment.

2. Surface coating

Surface coatings such as galvanizing and painting can effectively prevent carbon steel from rusting and form a protective film on the surface, which can resist corrosion from the external environment and improve the hardness and durability of the surface.

3. Cement coating

Cement coating is another method for carbon steel to prevent rust. Although cement will absorb water, it will directly form a protective layer on the surface of the steel pipe. Therefore, cement coating is also a method of rust prevention.

4. Anti-rust oil treatment

The anti-rust oil added with anti-rust agent can prevent the rust of carbon steel well, and can be used as anti-rust treatment for engineering machinery, automobile engine parts and so on. The use of high-density grease and preservatives can prevent oxygen from entering the surface of carbon steel, thereby reducing the occurrence of oxidation reactions.

5. Electronic rust removal technology

The application of electronic rust removal technology can completely remove the rusty substances generated on the surface of carbon steel without changing the physical properties of the steel, so as to achieve the purpose of rust prevention.

https://www.steelweldedpipe.com/news/causes-of-rust-and-discoloration-of-carbon-steel-pipe-and-preventive-measures-148377.html

Carbon steel pipe material and classification

Carbon steel pipe is a durable material made of carbon steel, a steel alloy of iron and carbon in which the carbon content is less than 2 percent steel. Carbon steel can be further divided into low carbon steel, medium carbon steel and high carbon steel, mainly depending on the carbon content in the steel. Due to its strength and ability to withstand pressure, carbon steel pipes are used in a variety of heavy industries such as infrastructure, ships, stills, and fertilizer equipment.

Advantages of carbon steel pipes:

Carbon steel piping provides safety and durability. It is an ideal material for structural applications due to its impact resistance and its imperceptibility to harsh environmental conditions such as stress or extreme weather.

The incredible strength of carbon steel means that carbon steel pipes can be made thinner and use less material while still being able to transport large volumes. This makes carbon steel piping a cost-effective material. Not only can the use be reduced, but the carbon steel can also be recycled, which is environmentally friendly and economical.

Carbon steel pipe is a versatile material due to its ease of fabrication. We can produce products in various thicknesses and sizes. It's also easy to cut and bend to fit wherever needed. It also connects easily to fittings, valves and other plumbing fittings.

Classification of carbon steel:

Mild steel (also known as light steel):

The carbon content is usually between 0.04% and 0.30%. Low carbon steel has good ductility and toughness, can be processed hot and cold, and is easy to weld. Commonly used low carbon steels include Q195, Q215, Q235, etc.

Medium carbon steel:

The carbon content is usually between 0.30% and 0.60%. Medium carbon steel has high strength and hardness, but low ductility and toughness. Commonly used medium carbon steels include 45# steel, 40Cr and so on.

High Carbon Steel:

The carbon content is usually between 0.60% and 2.00%. High carbon steel has high strength and hardness, but low ductility and toughness, and poor weldability. Commonly used high carbon steels include 65Mn, T8, T10, etc.

Carbon steel pipes can be divided into seamless pipes and welded steel pipes according to the production method. Seamless steel pipes are made by hot rolling or cold drawing, and have high strength and tightness. Welded steel pipe is made by rolling steel plate or steel strip into a cylindrical shape, and then connecting the weld seams by resistance welding, submerged arc welding and other methods.

Application fields of carbon steel pipe:

Carbon steel pipe has good corrosion resistance, pressure bearing capacity and machinability, and is widely used in many fields.

1. Oil and natural gas industry: Carbon steel pipe is an important pipeline material for transporting oil and natural gas, with high strength, reliability and corrosion resistance.

2. Construction and structural engineering: Carbon steel pipes are used in construction and structural engineering, such as bridges, high-rise buildings, roads and tunnels, etc., to support and transmit loads.

3. Automobile manufacturing industry: Carbon steel pipes are used in exhaust pipes, frame and chassis and other components in the automobile manufacturing industry, and have good wear resistance and strength.

4. Mechanical engineering: Carbon steel pipes are used in conveying systems, pressure vessels, hydraulic systems and other components in mechanical engineering, and have pressure bearing capacity and reliability.

5. Chemical industry: Carbon steel pipes are used in the chemical industry for conveying systems, reactors, storage tanks and other components, with corrosion resistance and high temperature resistance.

https://www.steelweldedpipe.com/news/carbon-steel-pipe-material-and-classification-147951.html

GOST 8732-78 Seamless steel pipe support Bangladesh Cooling Tower Project

Project location：Bangladesh

Product：SEAMLESS STEEL PIPE

Standard and material：GOST 8732-78 ТУ 14-3-190-2004 STEEL 20

Specifications：32-426mm

Usage：Cooling Tower

Shipping time：2023-04-01

Once again, Xinyue Steel is supporting to build the world! Xinyue Steel has successfully participation in the supply of seamless steel pipes for the Ruppur Nuclear Power Project. This project has garnered much attention, and to ensure its smooth progress, we strictly adhere to the GOST certification requirements for the supply of steel pipes. Furthermore, all our pipes have successfully passed rigorous third-party inspections. Currently, our pipes have safely arrived in Bangladesh.

The Ruppur Nuclear Power Project, as a crucial energy infrastructure project, imposes stringent demands on its suppliers. Seamless steel pipes, as vital components of nuclear power equipment, face even more rigorous quality requirements. Our company not only possesses the capacity to supply pipes in various specifications but also places great emphasis on quality control to ensure that each pipe meets the highest standards.

First and foremost, our company has obtained GOST certification, which is issued by the Russian State Standards Committee. This certification demonstrates our company’s outstanding capabilities in manufacturing and quality management. Having this certification means that our pipes conform to international standards and can meet the requirements of nuclear power projects.

Secondly, all our pipes have successfully passed rigorous third-party inspections. These independent and impartial inspection agencies have conducted comprehensive quality tests on our pipes, ensuring that their material composition, physical properties, and corrosion resistance meet the required standards. This provides reliable assurance for our supply, guaranteeing the safety and reliability of the nuclear power project.

Additionally, our company offers a wide range of specifications to cater to the diverse needs of the Ruppur Nuclear Power Project. Whether it’s diameter, wall thickness, or length, we can provide a variety of products to match the project’s specific requirements.

Our company’s participation in the supply of seamless steel pipes for the Ruppur Nuclear Power Project is a recognition of our professional strength and a testament to the quality of our products. We will continue to uphold the principle of “High Quality, Customer First” and contribute to the smooth progress of the nuclear power project.

https://www.xysteelpipe.com/gost-8732-78-seamless-steel-pipe-support-bangladesh-cooling-tower-project/

ERW and LSAW steel pipe delver to Indonesia

 Project location：Indonesia

Product：ERW/LSAW steel pipe, Unequal angle

Standard and material：EN10219-1 S355J0H, S355J2H; GB /T 3091 Q345B, EN10056 S275JR

Specifications：DIA:219.1-762mm, WT: 8-12.7mm Length: 11.9-12M

Application： Structural Usage

Shipping time：2023-06-16

With strong resource integration ability and the influence of Xinyue brand in Indonesia market, we successfully established the first cooperation relationship with this customer!

In just 20 days, after we inventoried the stock and submitted the MTC sample to the customer for material review, we successfully passed the SGS third-party inspection and physical and chemical test, and have successfully shipped the products.

The customer requested a wide range of products for this order, but the quantity of each product was small. How to gather the inventory quickly, how to ensure the material audit passed smoothly, and how to ensure the quality of the products, etc. This is exactly where our company has the advantage, and with our ability to integrate resources and rich experience, we were able to successfully solve these problems.

First of all, our company has an extensive supply chain network and stable partners in Tianjin. By working closely with various suppliers, we are able to quickly mobilize inventory of a wide range of products to ensure that orders are fulfilled on time. At the same time, we also negotiate and submit MTC samples with our customers in order to audit the conformity of the materials. Our company strictly adheres to international standards and quality requirements to ensure that the products supplied meet the expectations of our customers.

Secondly, we arrange our own inspection and laboratory to do the testing before the final inspection and physical and chemical performance testing by the SGS third-party organization commissioned by the customer. This initiative can not only ensure the quality and conformity of the products, but also increase the trust of customers and ensure the quality of goods without worries.

Finally, we shipped the goods to Tj Priok terminal in Indonesia without any problems, providing efficient logistics services to our customers. We worked with a reliable logistics partner to ensure the cargo was routed on a direct route and to provide timely tracking and communication when needed. This efficient logistics solution provides customer convenience, reduces transit time and costs, and increases customer satisfaction.

Our ability to provide quick solutions to a wide range of product requirements and our extensive experience enable us to meet our customers’ needs.

https://www.xysteelpipe.com/erw-and-lsaw-steel-pipe-delver-to-indonesia/

Application Field of Large diameter Spiral Steel Pipe

 Large-diameter spiral steel pipe (SSAW) is an important building material with strong support and pressure resistance. It has a wide range of applications and can be used in various construction projects, such as bridges, tunnels, highways, ports, docks, petrochemical and other fields. Large-diameter spiral steel pipe is characterized by a certain degree of flexibility and scalability, and can adapt to various shapes of terrain. At the same time, it also has excellent corrosion resistance and strength, and can adapt to various harsh environments. So large diameter spiral steel pipe can be used in what fields.

1. Large-diameter spiral steel pipes can be used as water pipelines.

Industrialized cities and agriculturally developed areas need a lot of water to meet production and living needs, and spiral steel pipes have the characteristics of compression resistance, bending resistance, high temperature resistance, and corrosion resistance, which can ensure the safety and stability of water delivery, so they are widely used in transportation The field of production water and domestic water.

2. Large-diameter spiral steel pipes can also be used as oil pipelines.

In recent years, with the development of the global economy, the demand and output of oil and gas resources continue to increase, and spiral steel pipes play a very important role in the transportation of oil and gas. The use of large-diameter spiral steel pipes as oil pipelines can not only ensure the quality and safety of oil pipelines, but also reduce maintenance costs and difficulty.

3. Large-diameter spiral steel pipes can also be used as building materials.

4. In the field of construction, the market demand is also growing. Due to the characteristics of high strength, safety and reliability, sound insulation and heat insulation, spiral steel pipes are widely used in steel structure buildings and long-span buildings in the construction field.

In engineering, in addition to the diverse applications of large-diameter spiral steel pipes, its superior performance and technical characteristics have also attracted the attention of the construction industry.

1) Strong structure, so that it has good bearing capacity and stability;

2) Easy to process, especially in construction steel pipes, its production process is flexible, and steel products of various shapes and specifications can be manufactured;

3) It has high strength and compression resistance, so it is widely used in the industrial field.

In addition, large-diameter spiral steel pipes have excellent weather resistance, extremely low maintenance costs, and are lightweight and flexible. As an important building material, it has good wind resistance and will not be blown down by the wind, which can make the building better maintained and increase the service life of the building.

In engineering construction, large-diameter spiral steel pipes not only reflect strong structural support and stability, but also have a wide range of uses and superior performance. For the construction industry, choosing the right large-diameter spiral steel pipe can provide an important guarantee for the smooth progress of the project.

Finally, large diameter spiral steel pipe can also be used in other fields of application. For example, large-scale petrochemical equipment, high-end housing furniture, automobile manufacturing, steel structure chemical and municipal engineering load-bearing supports, etc.

https://www.steelweldedpipe.com/news/application-field-of-large-diameter-spiral-steel-pipe-147829.html

Factors affecting the welding quality of ERW welded pipe

 With the development of ERW welded pipe technology, its application fields continue to expand. ERW welded pipe uses the skin effect and proximity effect of the current to heat the edge of the tube blank to the welding temperature for extrusion and welding. Compared with seamless pipe, it is obvious that ERW pipe has a weld seam, and its performance depends largely on the quality of the weld seam.

The factors affecting the quality of welds are more complicated, including the chemical composition of raw materials, inclusions, banded structures, sickle bends, and edge burrs, which will all affect the quality of welds.

a. Inclusions and banded structures have a great influence on the impact toughness and flattening performance of welds. Excessive inclusions are easy to accumulate in the heat-affected zone of welds and easily form crack sources to cause cracking.

b. When the sickle bend and the edge burr are serious, it will cause misalignment, arc strike, weld deviation, inclusions are difficult to discharge, etc., which will reduce the quality of the weld.

Factors of high-frequency welding process level. The temperature, speed, extrusion amount and opening angle during welding will all affect the quality of the weld.

If the temperature is too high, the burr does not have a raised shape, the weld seam is flat, and the temperature is too low, the top of the outer burr is not smooth, and there is no intermittent raised shape on the burr line; the faster welding speed, it is easier to ensure the quality of the weld seam; in general, The amount of extrusion should refer to the wall thickness, and it is better to control it at about 5.0mm. For thick-walled pipes such as 10mm or more, the extrusion amount can be increased by 0.5-1mm; as the diameter and thickness of the pipe change, the opening angle should also be adjusted appropriately.

The stability of high-frequency welding is also the key to the stability of weld quality. Too many impurities and burrs on the edge of the plate will cause instantaneous short-circuit ignition during high-frequency welding, and local cold welding of the weld. To prevent this defect, regular inspections should be made. Whether the installation of the high-frequency coil is reliable, whether the coolant is filtered clean, whether the welding opening angle is appropriate, whether the edge burrs of the coil are removed, and then strengthen the inspection of water pressure and ultrasonic to strictly control the quality of the steel pipe.

The heat treatment process is also one of the influencing factors. Heat treatment generally adopts online intermediate frequency weld heat treatment. The influence of the length of the air-cooled section after intermediate frequency heating on the quality of the weld is easily overlooked. Too high water entry temperature will cause a sharp decline in the impact toughness of the weld. Low, the impact toughness will also decrease, it is necessary to consider the running speed of the production line to determine the length of the air-cooling section.

https://www.steelweldedpipe.com/news/factors-affecting-the-welding-quality-of-erw-welded-pipe-147826.html

Weldability of high carbon steel pipe

 High-carbon steel refers to carbon steel with W(C) higher than 0.6%, which has a greater tendency to harden and is more sensitive to the formation of cold cracks. High-carbon steel has poor weldability and requires special welding processes to ensure joint performance. In welded structures, it is generally rarely used.

High-carbon steel pipes are mainly used for machine parts that require high hardness and wear resistance. In heavy machinery manufacturing, welding problems of high-carbon steel parts will also be encountered. When welding high-carbon steel, it is necessary to comprehensively analyze possible welding defects , and take corresponding welding measures.

Weldability of high carbon steel pipe:

1. Welding method

High-carbon steel pipes are mainly used in structures with high hardness and wear resistance. The welding methods include submerged arc welding, electrode arc welding, and brazing.

2. Welding materials

High carbon steel pipe welding generally does not require the strength of the joint and the base metal. Electrode arc welding uses a low-hydrogen electrode with strong desulfurization ability, low metal hydrogen content, and good toughness. If the strength of the weld metal and the base metal is required, the corresponding level should be selected. If it is not required, choose a low-hydrogen electrode whose strength level is lower than that of the base metal. If the base metal is not allowed to preheat during the welding process, you can choose the heat-affected zone, austenitic stainless steel electrode, to prevent cold cracking, Obtain an austenite structure with strong crack resistance and good plasticity.

3. Groove preparation

Reduce the fusion ratio, limit the mass fraction of carbon in the weld metal, use U-shaped or V-shaped grooves during welding, and pay attention to cleaning the grooves and the oil and rust on both sides.

4. Warm up

Structural steel electrodes should be preheated before welding, and the temperature should be controlled at 250 ° C ~ 350 ° C.

5. Interlayer processing

In multi-layer multi-pass welding, the first welding is welded with a small diameter electrode and a small current. Usually, the workpiece is placed in a semi-vertical welding or by using the electrode to swing laterally, and the entire heat-affected zone is heated in a short time to Get preheating and warming effects.

6. Post-weld heat treatment

After welding, the workpiece is placed in a heating furnace for stress relief annealing, and the temperature is kept at 650 °C.

Due to the high carbon content and poor weldability of high carbon steel pipes, cracks are prone to occur in welding. Therefore, it is necessary to choose a reasonable welding process to reduce the occurrence of welding cracks and enhance the performance of welded joints.

https://www.steelweldedpipe.com/news/weldability-of-high-carbon-steel-pipe-147820.html

Seamless steel pipe and fittings support Africa oil and gas project

 Project location：Africa

Product：Seamless Steel Pipe+fittings(Bends, Tee, Reducer)

Specifications：2”-24”

Standard and material：API 5L X60, ASTM A234 WPB, B16.5

Usage：Oil And Gas Project

Received the inquiry in Jan. 2022

Signed the contract in Feb. 2023

Estimated Shipping time: Early June, 2023

This order is for seamless pipes and fittings supplied to local oil and gas pipeline contractors in Africa. In January 2022, our company received the first inquiry from this customer. After several months of patient communication and strength demonstration, the customer confirmed the PO in May 2022. However, due to payment issues with the customer’s bank, there has been no payment in the following. Our company adheres to the principle of serving each customer and has been patiently communicating with them, helping them find ways to exchange US dollars. Finally, with the unremitting efforts of both parties, the client paid the first deposit in December 2022. Upon receiving the deposit, we immediately held a pre production meeting and technical meeting, and sent technical documents such as ITP MPS to the customer for confirmation. Two more months passed in the document confirmation, and finally received technical confirmation from the customer in February 2023. Our company began production and completed the production and anti-corrosion coating within one month.

For this order, our company has arranged strict internal and third-party inspections, all of which have passed the inspection 100% at once. And helped the customer store the goods for 2 months, and finally helped the customer complete the shipment in early June.

https://www.xysteelpipe.com/seamless-steel-pipe-and-fittings-support-africa-oil-and-gas-project/