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About Zhonglian

Dare to face, dare to challenge, dare to break through

Shandong Zhonglian Petroleum Technology Co., Ltd. was established in March 2024 with a registered capital of 3 million yuan. It is a petroleum technology service company that has long-term technical cooperation with universities such as China University of Petroleum, and has appointed Professor Zhang Jianguo as the technical director. Based on the technical advantages of the University of Petroleum and the regional advantages of Shengli Oilfield, the company is committed to improving reservoir recovery and on-site construction efficiency. Relying on advanced technology, we have established deep cooperation with multiple oil companies and provided technical support and cooperation in multiple subsidiaries of China National Offshore Oil Corporation, China Petrochemical Corporation, and China Petroleum Corporation. Among them, our process technologies such as multi-layer acoustic cavitation for plug removal, production increase and injection enhancement, inorganic gel sand control and water blocking, and inorganic gel plugging are at the leading level both domestically and internationally. We have standardized management and strong technical strength, with 2 invention patents and 9 utility model patents. We are a technical service company with technology, responsibility, and accountability.

BUSINESS SCOPE

Business Scope

Led by petroleum technology se

Water jet microbubble pipeline cleaning technology

Technical Introduction: The pipe cleaner is inserted into the pipeline and pushed forward by hydraulic force. The water flows from the tail wing into the internal vibration system, contracting violently and expanding rapidly, oscillating repeatedly to generate countless bubbles. After being ejected from the nozzle, the bubbles suddenly burst, producing a dense high-pressure jet. High pressure jet forcefully hits pipe scale, achieving thorough and effective cleaning of pipelines.
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Anti corrosion and repair technology for HDPE pipe lining of oil, water, and gas pipelines

Technical Introduction: For old oil, water, and gas pipelines operating in oil fields, due to prolonged time and severe internal corrosion, there are too many perforations in the pipelines, resulting in high maintenance costs. Some locations are inconvenient for excavation, repair, and replacement. Therefore, the use of interpenetrating HDPE pipes for anti-corrosion and repair technology is recommended.
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Antifreeze cleaning sampling short section

The anti freezing cleaning sampling short section is an auxiliary oil well sampling tool designed to accurately reflect the water content of the fluid in the pipeline due to laminar flow phenomenon. In addition, the cold winter in the north makes it easy for conventional sampling cocks to freeze and block, making sampling difficult.
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Backwash valve for ultra-high temperature thick oil well

The ultra-high temperature heavy oil well backwash valve is a specialized device independently developed by our company for periodic flushing of heavy oil production wells. It has the advantages of high temperature resistance, low opening pressure, and large flushing displacement, and is a reliable auxiliary device for heavy oil well production.
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Four in one wax prevention, viscosity reduction, and yield increase technology

The perfect combination of the sound wave strong magnetic vortex anti wax and anti viscosity device and the self-excited vibration oil production device is our company's independently developed anti wax, anti viscosity, and production increasing technology. It comprehensively utilizes the effects of sound waves, strong magnetic fields, and mechanical vibrations on wax deposition, anti viscosity, and production increasing, and organically combines the four together to enhance the anti wax, anti viscosity, and production increasing effects. It has the advantages of simple installation, energy saving and consumption reduction, long effective time, and reusability.
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Hydraulic negative pressure unblocking, increasing production and injection technology

The hydraulic negative pressure plugging and increasing production and injection technology has the characteristics of fewer construction equipment, shorter construction time, and significant effects. It relies entirely on high-pressure flushing fluid to provide power, has strong sand carrying capacity, good well control safety, and no safety and environmental hazards. It is a physical method plugging technology.
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Multi layer acoustic cavitation technology for unblocking, increasing production and injection

The one-time multi-layer acoustic cavitation plugging and increasing production and injection technology is an oil and water well production and injection technology independently developed by our company. It can achieve seven layers of plugging without moving the construction pipe column, and the effective thickness of one pipe column can reach 30-40m, which is not affected by the span. The construction process is simple, the construction time is short, and the construction risk is low. It is a physical method plugging technology that can effectively alleviate interlayer conflicts.
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Inorganic gel sealing technology

This process technology uses a full well temperature shallow layer low-density casing plugging agent as the main plugging material. This material is a new type of plugging material independently developed by our company. It is mainly made of sulfoaluminate, and modified materials such as bauxite, limestone, hard gypsum, and dihydrate gypsum are added. After high-temperature calcination, it is ground and screened into a greenish gray powder with a mesh size of over 150, and then dried at 60-80 ℃. When used, it is mixed evenly with water and composite additives and pumped into the section to be plugged. It has wide applicability, low specific gravity, adjustable initial setting time, and excellent sealing effect for shallow free section casing breaking. It can completely replace the casing replacement process, reducing costs and increasing efficiency.
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Inorganic gel sand control technology

This process technology uses fully low-temperature and low-density self bonding sand control particles as the main material. This new sand control material is a new type of sand control material independently developed by our company. It is mainly composed of sulfoaluminate, with the addition of bauxite, limestone, hard gypsum, dihydrate gypsum and other auxiliary materials. After high-temperature calcination, it is ground and screened into 14-20 mesh particles, and then dried at 60-80 ℃. It has the characteristics of wide well temperature adaptability, low specific gravity, and self bonding. It is a new sand control process technology with more promotion significance after conventional mechanical sand control and organic chemical sand control.
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