Company News

2024-05-21

Production process of LSAW steel pipe

LSAW steel pipe (Longitudinally Submerged ArcWelding) is a professional term for straight seam submerged arc welded steel pipe, also known as straight seam submerged arc welded pipe, which is a kind of steel pipe. It uses a single medium-thick plate as raw material, presses (rolls) the steel plate into a tube in a mold or forming machine, and then uses double-sided buried fox welding and enlarging the diameter for production. Submerged arc welding (including submerged arc surfacing and electroslag surfacing, etc.) is a method in which the arc burns under the flux layer for welding. Its inherent advantages include stable welding quality, high welding productivity, no arc light, and little smoke and dust. It has become the main welding method in the production of many important steel structures.

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2024-05-20

Analysis of the causes of screen casing damage

With the development of petroleum industry, screen casing play a vital role in the process of oil exploitation and production. However, the frequent occurrence of oil screen casing damage recently has aroused widespread concern. Due to many factors such as wellbore, pipe string, sand control tools, ground environment and personnel's technical quality, screen casing annulus filling often fails in the construction process. In order to better understand the causes of oil screen casing damage, we have carried out in-depth investigation and analysis.

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2024-05-20

Development of ERW steel pipe

High frequency straight seam resistance welded steel pipe (ERW) is a hot rolled coil formed by the forming machine, using the skin effect and proximity effect of high frequency current, the bad edge of the pipe is heated and melted, and the pressure welding is carried out under the action of the extrusion roll to achieve production. At present, in the production of welded steel pipes in the world, ERW welded pipe production accounts for about 80% of the total output of welded pipes.

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2024-05-17

Slotted casing market analysis

As an important special equipment for oil drilling, slotted casing has a relatively simple manufacturing process. The material of slotted casing is mainly petroleum casing, and petroleum casing is basically used as the raw material for making slotted casing. There are three main types of slotted casing arrangements: parallel seams, cross seams, and group seams. When making, the sewing edges need to be vertical, the cutting edges should be smooth and burr-free, and the cutting seams should be even. Slotted casing is a type of pipe made by cutting a series of gaps in the pipe wall. It is mainly used for sand control and filtration in oil and gas wells.

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2024-05-17

Process characteristics and applications of rectangular tube

Rectangular square tube refers to a hollow metal profile with a rectangular or square cross-section, which is used in construction, machinery manufacturing, shipbuilding, hardware, steel structure engineering and other industries.Rectangular tube is a hollow square cross-section lightweight thin-walled steel tube, also known as steel cold-formed profile. It is a square section steel with a square cross-section shape and size made of Q235 hot-rolled or cold-rolled strip or coil as the base material, cold bending and then high-frequency welding. In addition to the thickening of the wall thickness, the corner size and edge straightness of hot-rolled extra thick-walled square tubes reach or even exceed the level of resistance welded cold-formed square tubes.

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2024-05-16

What are the indispensable pipe fittings in pipeline engineering?

With the continuous development of modern engineering technology, pipeline engineering has been continuously developed, and pipe fittings in pipeline engineering are irreplaceable key components. Among the many pipe fittings, several common pipe fittings such as flanges, valves, elbows, and reducer tees are indispensable. They each perform different functions and work together to form a complete pipeline system. Let us discuss the importance and application value of these pipe fittings in engineering.

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2024-05-16

Seamless steel pipe VS welded steel pipe

In modern industry, steel pipes, as an important transportation tool, are widely used in petroleum, natural gas, hydraulics, chemical industry and other fields. Steel pipes can be divided into two categories: seamless steel pipes and welded steel pipes according to production methods. Welded steel pipe refers to a steel pipe welded after the steel strip or steel plate is bent and deformed into a round, square, etc. shape.

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2024-05-15

What are pup joints made of?

In recent years, with the continuous growth of global energy demand and the increasingly diversified energy structure, pup joints, as a new trend in the energy market, are gradually leading the new direction of the global energy market. Oil pup joint is a mechanical component for connecting oil casing and tubing in petroleum development. It is mainly used for the connection of casing and tubing. The oil pup joint serves to connect the oil pipe, bear tensile force, lift the oil pipe, and seal the oil pipe thread. The oil pup joint is a short section of casing and tubing. Compared with the casing and tubing, it is only different in length, but everything else is the same.

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2024-05-15

Application of slotted casing in petroleum industry

Slotted casing is an important completion key equipment in oil drilling operations. It is often used for early oil completion and sand control in oil production. Due to the good sand control performance, convenient construction and low cost of grooved casing, the demand for grooved casing in oil fields has increased rapidly. However, the extensive damage to slotted casing in oil fields not only disrupted the normal production plan, but also destroyed the normal injection and production well network system, causing huge losses and waste to the project. At present, many experts have conducted a lot of research work on how to prevent damage to grooved casing and have achieved many results.

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2024-05-14

Different types and uses of seamless steel pipe

Seamless steel pipe is a steel pipe made in a unique way. It does not require welding during the production process and therefore has high strength and pressure resistance. Because of their different manufacturing processes, they are divided into two types: hot-rolled (extruded) seamless steel pipes and cold-drawn seamless steel pipes. Cold drawn tubes are divided into round tubes and special-shaped tubes. A steel pipe without seams along the perimeter of its cross-section. According to different production methods, they are divided into hot-rolled pipes, cold-rolled pipes, cold-drawn pipes, extruded pipes, pipe jacking, etc., all of which have their own process regulations. Seamless steel pipe is an important steel product widely used in construction, petroleum, chemical industry, machinery and other fields. Seamless steel pipes can be divided into many types according to different application requirements. The editor has sorted out the types and applications of seamless steel pipes for everyone.

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2024-05-14

How to clean oil drill pipe?

Petroleum exploration refers to the use of various exploration methods to understand underground geological conditions in order to find and identify oil and gas resources, understand oil generation, oil storage, oil and gas migration, accumulation, preservation and other conditions, comprehensively evaluate oil and gas prospects, and determine the conditions for oil and gas accumulation. The process of finding oil and gas storage traps in favorable areas, ascertaining the area of oil and gas fields, and clarifying the conditions and production capacity of oil and gas layers. In the process of oil exploration, drill pipes need to be used to drill underground. The current drill pipe holder only has a single fixing function. When the drill pipe is taken out, workers still need to remove mud and clean the drill pipe, which is very difficult. It is a trouble and adds to the burden on workers. Due to long-term use, oil pumping drill pipes are prone to bending, eccentric wear, fatigue fracture and other phenomena, resulting in the occurrence of well lying incidents. In the sucker rod repair process, cleaning work is very important, and the quality of cleaning directly affects the development of subsequent processes.

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2024-05-13

What are the methods of steel pipe piles construction?

During the construction process of steel pipe piles, it is inevitable to encounter the problem of pipe pile damage. So what is the cause of pipe damage? To be fair, the main problem of pipe pile damage during construction lies in the construction. On a 30-70 scale, 30% is due to pipe pile quality issues and 70% is due to construction issues. If the production and construction of steel pipe piles strictly follows the ASTM A252 standards and specifications, the damage rate of steel pipe piles can be reduced to a few ten thousandths, but it cannot be zero. Because this has something to do with survey and design. If the data provided in the geological survey report is inaccurate, or the pile type selection and bearing layer selection by the design unit are incorrect, it will lead to quality problems such as pipe pile damage or insufficient bearing capacity. Therefore, it is very important to choose methods and specifications during construction. Their importance affects the progress of the project. This article will introduce the following construction methods for reference only.