Company News

2024-06-04

Application of slotted casing in water conservancy projects

Water conservancy projects are of great significance to the development of human civilization. In today's global water resources are increasingly scarce, water conservancy projects have become a key area for protecting and managing water resources. Their construction and maintenance are essential for agricultural, industrial and domestic water use. Slotted casings and screen casings were originally important tools for sand control in the development of oil and gas. However, as the development of slotted casing products becomes more and more mature, and as the corresponding application technology becomes more and more perfect, some slotted casings have also been used in the development of water wells and other water conservancy projects.

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2024-06-03

Drill collar types and process characteristics

The drill collar is an important tool in drilling operations. It forms drilling pressure through its own weight to provide the necessary downward force during the drilling process. However, since the drilling pressure is mainly formed by the weight of the drill string, the compressive stress at the lower part of the drill string is relatively large. During the drilling process, the drilling pressure value is usually greater than the critical value of the compression rod stability of the drill string, which makes the compressed part of the lower part of the drill string easy to bend under the action of its own weight. The bent drill string will cause alternating stress when rotating, which will lead to fatigue damage of the drill string. In order to reduce the degree of fatigue damage, it is necessary to reduce the bending stress, which requires shortening the length of the compressed section as much as possible and increasing its rigidity. Based on this, the compressed part of the lower end of the drill string does not use a drill rod but a drill collar.

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2024-06-03

Importance of coating protection for casing and tubing

At present, major oil fields have entered the "three highs" period, namely high water content, high corrosion and high accident rate. This trend has brought severe challenges, especially the frequent accidents of downhole tools due to severe corrosive media. Therefore, it is particularly important to improve the performance of casing and tubing in downhole service. In order to extend the service life of casing and tubing, the selection of economical and applicable coatings has become the top priority of the oil special pipe coating industry. casing and tubing play a vital role in oil and gas drilling projects. They not only need to withstand extreme pressure and temperature, but also must resist corrosion and wear. Not only casing and tubing need coating protection, but also drill pipes and drill collars. In order to extend the service life of casing and tubing and improve their performance, coating technology came into being.

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2024-05-31

The difference between LSAW steel pipe and seamless steel pipe

In daily life and industrial production, the types of steel pipes we often come into contact with are mainly seamless steel pipes, LSAW steel pipes and SSAW steel pipes. For professionals and consumers, it is very important to understand the differences between these steel pipes. This article will take you to learn in detail the main differences between LSAW steel pipes and seamless steel pipes, helping you make a more informed choice in practical applications.

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2024-05-31

How do flanges and pup joint work together?

In modern industrial and engineering applications, tubing pup joints and casing pup joints are indispensable and important components in pup joint systems. They play a vital role in the fields of oil, natural gas, and chemical industry. This article will introduce in detail the types, functions, and applications of tubing pup joints in pipe connections, especially the specific methods and advantages of using pup joints with flanges.

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2024-05-30

How is the drill pipe connected?

Drill pipe and drill collar are extremely important components of oil drilling rigs, and their proper connection is one of the keys to ensure the smooth progress of drilling operations.Drill pipe is a drilling tool used for underground drilling operations. It is usually composed of a series of pipes, each of which is connected to each other to form an integrated drilling tool. The material of the drill pipe is usually alloy steel, which has been specially treated to give it sufficient strength and wear resistance. The drill collar is a key component connecting the drill pipe and the drill bit. It is usually a flat metal disc with many openings on it, through which the drill collar is connected to the ball joint of the drill pipe. The drill pipe transmits rotational power and torque to the drill bit through the drill collar, causing it to rotate and drill into the ground.

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2024-05-30

How to use slotted casing?

Slotted casing is an important downhole tool in the production process of sand-producing oil and gas wells. It is widely used under the pump barrel of oil well pumping units. Slotted casing is widely used in sand prevention and completion of oil and gas wells due to its simple structure, low production cost and good sand effect. This article will briefly explain the following usage and design intentions of slotted casing based on its characteristics.

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2024-05-29

Causes and solutions of flange leakage

Flange is a part mainly used for connection between casing and pipe fittings, valves, equipment, etc., and is one of the indispensable parts in the pipeline system. Flange leakage refers to the leakage of the flange surface of material pipelines and equipment in the petroleum and chemical industries due to the influence of temperature, pressure, and corrosive media. Most chemical companies use pipeline systems in their production, and flanges are indispensable in pipeline systems. After all, flanges can connect pipelines and pipelines in pipeline systems or two devices; in addition, in pipeline systems, flanges are usually used together with flange gaskets and flange bolts to achieve the connection between fixed pipelines and rotating or reciprocating equipment; we also know that if any part of the flange connection is not installed correctly, it will cause problems in the connection and use of the flange, causing the medium in the pipeline to flow out, affecting the production process of the enterprise, and even seriously endangering personal safety; once the flange leaks, it will bring obstacles to the pressure test work, which may affect the construction period and normal production in the future. If the leak is flammable, explosive or corrosive items, it is likely to cause an accident. So, how to solve this problem?

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2024-05-29

What materials are used for well screen casing?

The slotted casing and screen casing in the oil field have the function of sand prevention. screen casing sand prevention is a technology commonly used in oil fields, coal mines, water treatment and other industrial fields. Its main function is to prevent solid particles from entering the fluid to protect pipeline equipment from erosion and wear of sand particles. Because its specific function is more important for the development of oil fields, the selection of raw materials and the production process need to be strictly controlled. The following will introduce in detail the selection of materials and the production process of screen casings.

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2024-05-28

What is a reducer?

With the development of the petrochemical industry, engineering construction has shown a trend of large scale and complexity, and the pipe fittings used in pipeline projects also change with different working conditions. The materials used for pipe fittings can be pipes, forgings, castings and other materials, which can be processed by welding, stamping, casting or forging. Among them, we have the more common and commonly used pipe fittings, including flanges, tees, reducers, etc. How much do you know about reducers? Do you know its types and uses? Today, the editor will talk about what a reducer is based on these contents.

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2024-05-28

Analysis of the causes of cracking defects of seamless steel pipes

Seamless steel pipe with its excellent performance in the construction, chemical and other industries have been widely used, but in the process of application will also appear cracking problems, will not only cause material waste, increase costs, but also lead to a decline in production efficiency and delay the construction period. Seamless steel pipe factory in the production of seamless steel pipe will also have cracks in the steel pipe, the crack is not terrible, we should investigate the cause and find a solution is feasible. Here, Xiaobian will analyze some reasons in the production process, and some other reasons will also be analyzed.

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2024-05-27

The welding methods of stainless welded steel pipes

With the rapid development of global industry, stainless welded steel pipes are widely used in petroleum, chemical industry, food processing, pharmaceuticals, construction and other fields due to their excellent corrosion resistance, high strength and aesthetics. Welding is a key link in the production of stainless steel welded pipes, and its technical level directly affects the quality and application performance of welded pipes. The main welding methods of stainless welded steel pipes include gas tungsten arc welding (GTAW/TIG welding), gas shielded metal arc welding (GMAW/MIG welding), high frequency resistance welding (HFW), laser welding, plasma arc welding (PAW), etc. Method, this article will introduce in detail the main welding methods of stainless welded steel pipes and their technical prospects.