Company News

2024-04-24

The causes of screen casing plugging and the measures of treatment

As oilfield development enters the middle and late stages, the wellbore environment is deteriorating day by day, and the impact of sand and wax formation on the downhole pipe strings of oil wells is increasing. In the management of mechanical production, it is often found that the oil well performance map type is insufficient liquid supply or affected by gas, and the submergence degree is greater than 500 meters. The data is abnormal and the data is unqualified. However, after analyzing the structure of the oil well string and the working principles of each part, it is more reasonable to define this type of well as a screen casing plugged well. In oil wells or other pipelines, both screen casing and slotted casing may cause blockage, but the causes and methods of blockage are different. Screen casing is a casing with filtering function. Its main function is to prevent solid particles from entering the inside of the pipe and protect underground equipment from damage. Therefore, if the formation at the bottom of the well contains a large amount of solid particles or impurities, these particles may clog the filter holes of the Screen causing the bottom well flow to be blocked, thereby affecting the efficiency of oil production or water injection.

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2024-04-23

Pup Joints in the connection of oil casing precautions

Pup joints and casings are common pipe fitting materials in petroleum engineering, which are related to the completion quality and production efficiency of oil wells. Oil Pup Joint is one of the key components used in the oil and gas equipment process. It connects the equipment and pipeline , and serves as a connection and seal to ensure the safety and smooth progress of the entire process. The processing technology of oil pup joints has a greater impact on the quality and performance of the product. There are many things that need to be paid attention to. This article will introduce some precautions for connecting oil casing of pup joints and how to maintain pup joints.

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2024-04-22

Production process flow of casing and tubing

Casing and tubing are steel pipes used to support the well walls of oil and gas wells to ensure the normal operation of the entire oil well during the drilling process and after completion. Each well requires several layers of casing and tubing based on different drilling depths and geological conditions. Cement must be used to cement the casing and tubing after it is lowered into the well. Unlike oil pipes and drill pipes, it cannot be reused and is a one-time consumable material. Therefore, the consumption of casing accounts for more than 70% of all oil well pipes. Casing and tubing can be divided into: conduit, surface casing, technical casing and oil layer casing according to usage conditions.

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2024-04-19

What causes cracks in seamless steel pipes and how to repair them?

Seamless steel pipes are used in every corner of our lives. In addition to being widely used in natural gas extraction, oil extraction and transportation processes, seamless steel pipes are also widely used in people's daily lives, such as bicycle manufacturing processes and machinery manufacturing. Process transmission shafts, cable conveying pipes, pressure vessel auxiliary accessories and other applications.

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2024-04-19

Frequently asked questions about piling pipe construction

With the development of world science and technology, there are an increasing number of various engineering projects. Piling pipes have been further promoted and applied due to their simple construction technology, good cost performance, high-quality performance and strength.It is a pipe made of welded , its reference standard is ASTM A252.In order to effectively improve the construction quality of projects , production efficiency, we must pay more attention to the control of the construction process. Nowadays, the relatively mature construction technology of prestressed pipe piles includes static pressure method, hammering method or pre-drilled pile insertion. However, with the increase in construction projects, piling pipes have also encountered many problems during the construction process. The following will introduce some common problems and solutions during the construction of piling pipes.

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2024-04-18

How to Prevent Sand Production with Slotted Casing?

Oil and gas resources are important strategic resources for the country, related to the national economy, people's livelihood, and national security. How to maximize the production of oil and gas wells and improve the ultimate recovery rate of oil and gas fields is the goal that petroleum science and technology workers strive for. Slotted casing and screen casing are mining tools for oilfield drilling. They both have good sand prevention and leakage prevention functions, and can greatly increase the recovery rate of crude oil. Severe sand production during oil production will cause formation blockage, reduce oil well productivity, and even lead to oil well scrapping.

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2024-04-16

Material requirements for piling pipes

Piling pipe is an important engineering material used in foundation engineering and construction fields. It is usually a hollow, tubular structure used to form a stable base support during a process of driving it underground or underwater into soil or water. The main function of the piling pipe is to transfer and bear the load of the building or structure, and transfer the load to the more solid and stable underground through the pipe to ensure the stability and safety of the building or structure.

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2024-04-16

The difference between hot rolled and cold rolled seamless steel pipe

Seamless steel pipe is a kind of metal pipe, which is characterized by smooth inner and outer surfaces of the pipe wall, no obvious welded joints, and a seamless state as a whole. This kind of pipe is widely used in petroleum, natural gas, chemical industry, electric power, aerospace and other fields. Cold rolling and hot rolling are two commonly used processing technologies in steel pipe production, and they are suitable for the production of steel pipes of different types and requirements.Seamless steel pipe, SSAW steel pipe, casing and tubing all require cold rolling and hot rolling manufacturing processes.

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2024-04-15

ERW steel pipe high frequency welding thermal process

ERW steel pipe is a common type of steel pipe, its full name is Electric Resistance Welded steel pipe. High-frequency welding is one of the core steps in the production process of ERW steel pipes. Steel pipes that require high-frequency welding thermal processes are mainly used in transportation, structural and industrial fields, requiring high weld quality, high strength, and good corrosion resistance.

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2024-04-15

How to identify fake and inferior rectangular tubes?

Identifying counterfeit rectangular tubes requires careful observation and knowledge. First, we need to understand the basic characteristics and quality standards of rectangular tubes, and then use some practical methods and techniques to judge their authenticity.

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2024-04-12

Manufacturing process of slotted casing

Slotted casing pipe fittings are a type of pipe assembly commonly used for oil and water well completions. They have a series of elongated slots used to control formation penetration and prevent impurities such as sand and gravel from entering the wellbore, while allowing target substances such as oil and water to pass through. Its manufacturing technology and craftsmanship are crucial to ensuring the quality and performance of the pipeline. The following will introduce the manufacturing technology and process of slotted casing pipe fittings in detail. At the same time, its characteristics, uses, construction methods, advantages and disadvantages, etc. are introduced in detail.

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2024-04-12

Precautions and tips for installing pup joint

A pup joint refers to a pipeline component used in oil field mining or oil and gas pipeline systems. It is usually a relatively short section of steel pipe or pipe section. Its main function is to connect two long sections of pipe, which is often called casing and tubing. Serve as a connection and transition. Oil pipe nipples usually have the same diameter and wall thickness as the pipeline, but are relatively short in length, usually no more than a few meters, to meet specific connection and layout requirements. Installing oil pipe nipples is also a technical job. When installing oil pipe nipples, you need to pay attention to the following matters and techniques to ensure the safety, stability and efficiency of the system.