Company News

2024-05-07

Cold drawn seamless steel pipe production process

Cold-drawn seamless steel pipe is a kind of precision seamless pipe with high precision and good surface finish used in mechanical structures and hydraulic equipment. Cold-drawn steel pipe is a kind of steel pipe, that is, it is classified according to different production processes. The difference For hot rolled (expanded) pipe. It is processed through multiple passes of cold drawing during the diameter expansion process of the raw tube blank or raw material pipe, usually on a 0.5 to 100T single-chain or double-chain cold drawing machine.

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2024-05-07

Routine maintenance of slotted casing

Slotted casing is a kind of filtering equipment, which consists of three parts: support rod, mesh and pipe body. The support rod should be made of materials with high tensile strength and good corrosion resistance, such as stainless steel, high-strength steel, etc. The stainless steel connection method uses flange connection. Slotted casing is widely used in petroleum, chemical industry, food, pharmaceutical, environmental protection and other fields. It can effectively purify the medium and meet the requirements of various production processes. So, how to use slotted sleeves correctly?

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2024-05-06

What types of drill pipe are there?

Drill pipe is an important part widely used in the oil drilling and production industry. During the drilling process, as the drill bit goes deeper, the drill pipe needs to be added piece by piece. Both ends of the drill pipe are machined with internal and external threads respectively, and are connected piece by piece through threads. It is also possible to have external threads on both ends of the drill pipe and connect them piece by piece through couplings with internal threads on both ends. The entire drill pipe consists of a pipe body and drill pipe joints that are connected to both ends of the pipe body (usually by friction welding). Drill pipe is the main tool in oil and gas drilling and geological survey, and is made of seamless steel pipe. It is used to connect surface drilling rigs and equipment such as drill bits at the bottom of the drilling well, to transmit power and transport drilling fluid and mud, and to lift, lower or rotate the drilling and grinding equipment at the bottom. At the same time, the high-pressure cleaning fluid also Flows to the bottom of the well through the inner hole of the drill pipe. During the service process, oil drill pipes are not only affected by the complex underground environment, but also undergo a variety of alternating stresses, such as tension, compression, torsion, bending, impact, etc.

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2024-05-06

Causes of wax formation in casing and tubing

Due to long-term uninterrupted work, casing and tubing will accumulate a lot of impurities in their internal management, hindering the transportation of oil and gas, and in severe cases may even lead to corrosion or blockage. Wax formation in casing and tubing is one of the more serious hazards. As oil flows in the casing, a mixture of paraffin, colloid, condensate, sand and other impurities of a certain thickness gradually deposits on the inner wall of the pipeline, collectively called wax formation. The phenomenon of reduced transportation capacity due to wax accumulation in pipelines is a common problem that must be solved during the operation of heated and transported waxy crude casing and tubing.

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2024-04-30

Advantages of LSAW steel pipe

LSAW steel pipe refers to a steel pipe that uses thermal decomposition welding method to continuously apply color steel strips on the inner and outer walls. It is a very important steel pipe product. In the construction of long-distance pipelines, steel pipes account for a large proportion. Under normal circumstances, pipeline investment accounts for 35% to 40% of the total project investment. How to choose a reasonable price and excellent pipeline performance are particularly important. Reasonable selection has a very important impact on saving investment in pipeline construction and facilitating the construction and safe operation of the pipeline system. The advantages of LSAW steel pipes enable it to be widely used in its unique long-distance oil and gas pipelines. The following is a detailed introduction to the demand market status and industry competition landscape analysis of LSAW steel pipes, as well as ideas on how to gain advantages in future competition.

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2024-04-30

Quality requirements and industry standards for square tube

Square tube and rectangular tube are two commonly used steel pipe materials in construction projects. Square tube is a commonly used building material and is widely used in building structures. However, in order to ensure the quality and safety performance of square tubes, quality inspection of square tubes is essential. So what standards and specifications does square tube inspection follow? Let's take a look.

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2024-04-29

The development trend of slotted casing

Currently, there are many varieties of slotted casing used for limited sand control in the world, and there are no "API" or national or industry standards. Most of them adopt the production and inspection standards set by the company. For many years, many experts at home and abroad have been studying how to process and manufacture a slotted casing that is used for oil well and gas well completion, gravel filling and sand control, and to form certain oil well production strings. Because there are many manufacturing methods, it is easy to cause confusion in the market. It is understood that cutting, milling, drilling, beam and inlay methods are the most typical and most common methods. Each has its own application scope and field, the processing and production quality is different, and the drilling method is different. So far, an effective method has not been found to process and manufacture a slotted casing that is suitable for oil extraction and sand prevention, has a seam that can withstand high external forces, is not easily deformed and blocked, and has practical value.

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2024-04-29

What is the connection between pup joint and well pipe casing?

Pup joint is an important component for connecting pipelines and has been widely used in industrial production, construction and other fields. It has the characteristics of tight connection and high durability, and is an important component to ensure the safety and stability of pipeline operation. Petroleum pup joint and well pipe casing is important tools in petroleum engineering development. They are closely related and interact with each other. They both play important roles in the petroleum industry and together constitute the petroleum drilling and production system ,key components.

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2024-04-28

What is the difference between a drill pipe and a drill collar?

The drill collar has a thicker wall than the drill pipe and weighs more per unit length. The lower part of the drill collar is connected to the drill bit, and the upper part is connected to the drill pipe. The functions are similar. The drill pipe mainly transmits motion and power. The drill collar is stronger than the drill pipe and directly drives the drill bit to work.

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2024-04-28

How to use and maintain casing and tubing ?

With the advancement of industrialization, whether in construction, chemical industry, energy or other fields, pipelines are increasingly used everywhere. As an important transportation tool, pipelines are particularly important to ensure their quality and service life. Oil casing and tubing is an important part of the oil drilling and production process and is critical to ensuring the safe operation and extending the service life of downhole equipment. In order to ensure the normal operation of pipelines and extend their service life, we need to know some knowledge about daily maintenance of casing and tubing.Things that need to be paid attention to in the early stage of running down the well, and preparation and inspection before casing and tubing is run down the well.

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2024-04-26

How to Choose the Right Drill Collar

The drill collar is a tool used for drilling, sampling, fixing, etc. The drill collar is connected to the drill pipe and plays an overall weighting role to prevent backlash. The inner diameter of the drill collar is smaller than the drill pipe and its weight is larger than the drill pipe. big. Its main principle is to use a fast motor or manual pusher to drive the blade to rotate in the direction to be drilled to achieve the purpose of drilling. There are two main types of drill collars on the market: manual drill collars and electric drill collars. Among them, manual drill collars are suitable for light work, such as simple drilling or fixing screws. Electric drill collars, on the other hand, are suitable for drilling jobs that require large amounts of drilling or deeper, harder materials. A drill collar is a thick-walled round steel pipe. It is connected to the drill bit to apply drilling pressure and torque to the drill bit and prevent well deviation. Drill jacks of different sizes should be selected according to the drill bit size. Drill collar sizes range from 31/8 to 11 inches, and the heaviest drill collar can weigh up to 300 kilograms per meter. The connecting threads at both ends of the drill collar are tapered male and female buttons.

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2024-04-26

Analysis of the causes of casing pipe damage

With the development of economy, oil plays an increasingly important role in my country's economic construction. As an important part of the national economy, its safety performance affects people's production and life to a great extent. However, in the actual process of oil transportation, some unsafe accidents often occur, and the failure of oil casing pipe has an unshirkable responsibility to a large extent. Oil casing pipe failure brings huge losses to oil fields. Oil casing pipe play a key role in the oil drilling and production process, but they also face a variety of potential failure risks. These risks may lead to a decrease in the mechanical properties of the casing pipe, a weakening of the corrosion resistance, or even direct casing pipe failure. The following are some common causes of oil casing pipe failure and their analysis.