Oil and gas development, storage and transportation, and refining are inseparable from oil pipes and equipment. Oil and gas pipe strings and pipelines are known as the "lifelines" of oil and gas production and transportation.
SYGD Petroleum Pipeline Technology Corporation is the only comprehensive high-tech enterprise in the field of petroleum pipeline material engineering technology in China's petroleum industry that integrates scientific research, quality standards, and engineering technical services for high-performance pipeline materials.
The company has established a petroleum pipe material engineering discipline system, and has gradually formed a core technology system that includes six major technical fields, 12 first-level technologies, and more than 100 sub-technologies.
Relying on the National Quality Inspection Center, we have established more than 500 sets/sets of internationally advanced test and research equipment covering metals and non-metals, from microanalysis to full-scale simulation, and become the only and world-class petroleum pipe and equipment inspection and testing center in China. The quality and safety of oil pipes and equipment materials are guaranteed, and an authoritative and fair position is established. Relying on the ISO/TC67/SC2 (International Standardization Pipeline Sub-Committee), the vice chairman unit, the National Bank Standards Secretariat and other standardization organizations, organize the formulation and revision of domestic and international standards, and the international influence and right to speak have been continuously improved.
With the support of the two platforms, innovations have continued to emerge. The company won 1 second prize for China's national technological invention, 3 special prizes for scientific and technological progress of the group company, 5 first prizes for scientific and technological progress, 2 first prizes for provincial scientific and technological progress, 272 authorized patents, presided over or participated in the formulation and revision of 219 standards Projects (including 6 international standards), 29 sets of software have been compiled…
The high-performance material oil pipelines developed by the company have strongly supported the safe and efficient development of key oil and gas fields in China's Daqing, Changqing, Tarim, Xinjiang, and Southwest China, and ensured the construction and operation of major oil and gas pipeline projects such as the West-East Gas Pipeline, China-Myanmar, and China-Russia. .
To achieve the upgrade of China's high-end petroleum equipment, efforts must be made to develop new materials and new processes. Under the leadership of Academician Li Helin, SYGD has developed 12 high-performance steel materials such as 20SiMn2MoVA and 36CrNiMo4, making the quality, performance and service life of a large number of high-end petroleum machinery products leap to the international advanced level. Among them, four achievements including "high-strength and high-toughness structural steel", "nickel-free low-chromium non-magnetic steel", and "hydraulic blowout preventer" have been awarded by the China Science Conference.
Oil well pipe is the only channel for producing oil and gas. As the service environment is becoming more and more complex and demanding, once failure occurs, the project will be delayed, or the well will be destroyed, killed, and exploded. The economic loss and social impact will be huge.
In the face of safety risks, SYGD has concentrated on researching special pipe string design and material selection technical problems, and has created an oil well pipe standard system, material selection evaluation and application key technology system; formed a wellbore integrity technology; established a wellbore integrity technology that can simulate the complex mechanics and corrosive environment of oil well pipes Conditional full-scale simulation test platform and method, combined with Chinese metallurgical pipe manufacturing enterprises, so that oil well pipes are basically self-sufficient.
At present, the gas storage pipe string, economical special threaded casing, bimetallic metallurgical composite pipe, ultra-high temperature acidification corrosion inhibitor and other products developed by SYGD, as well as sulfur and corrosion resistant coating technology, wellbore deformation coordinated control technology, etc., are strongly supported It has promoted the safe, efficient and low-cost development of oil and gas such as Daqing "gas storage", Changqing "three lows", Tarim "three supers", Xinjiang "heavy oil", and southwestern "high sulfur".
With the rapid development of long-distance oil and gas pipelines, the transmission pressure continues to increase. In order to ensure the structural stability, safety and economy of the pipeline, the development and application of high-grade steel pipes has become the development trend of oil and gas pipelines, especially natural gas pipelines.
SYGD has successively created systems such as strain design, key technology for large-strain pipeline steel pipes, and pipeline failure control technology to ensure the safety of construction and operation of major projects such as the West-East Gas Pipeline and the Sino-Russian East Line; China’s first full-scale gas blasting has been completed The test site created conditions for the research on oil and gas pipeline fracture control; it solved the problems of microstructure analysis and identification, strength and toughness testing, fracture control, deformation control, etc., and formed a world-leading third-generation large-volume, high-strength natural gas The complete set of technology for pipeline construction provides a strong technical guarantee for China's first application of 1422mm large-diameter, X80 high-steel grade, 12-megapa high-pressure pipes, cross-border laying of long-distance natural gas pipelines in high-cold areas and subsequent safe and efficient operation.
In addition, the in-depth research on the composition, structure, performance and process of X90/X100 ultra-high-strength pipeline steel provides technical reserves for the construction of ultra-large-volume and high-pressure natural gas pipelines.
After the oil and gas pipeline has been in service for a long time, failure accidents will occur due to external interference, corrosion, pipe materials and construction quality, which will cause major economic losses. In order to control the risk of storage and transportation facilities throughout the life cycle, the Institute of Management continues to carry out residual strength evaluation, remaining life prediction, risk assessment, integrity evaluation, composite materials and sleeve repair and reinforcement. At the same time, in response to the complex geological conditions of the gas storage in my country and the wide-ranging risk points, we have increased our efforts to tackle the problem, pioneered the design method and technology of the string seal of the underground gas storage, and proposed a gas storage based on the logging data of the entire well section. The remaining strength evaluation method and life prediction method of casing string provide a guarantee for the large-scale construction of gas storages in Changqing, Liaohe, Xinjiang, and Dagang.
Up to now, SYGD has carried out a total of more than 1,600 failure analyses of oil pipes and equipment, and provided timely feedback to the design, materials, technology, and use processes, effectively preventing accidents and ensuring national energy security.
High-performance materials are an important foundation and key support for solving energy problems. In recent years, the company has actively carried out scientific research on new energy materials, and initially formed the applicability assessment technology of high-steel-grade natural gas pipelines for hydrogen-mixed transportation, revealed the corrosion and protection mechanism of pipes in the whole process of injection, production and transportation, and established a carbon dioxide pipeline fracture control model and explosion Leakage hazard engineering estimation method, formed the safety evaluation and corrosion control technology of underground coal gasification casing string, and advanced the development of new energy pipe materials such as energy storage materials, waste heat temperature difference power generation, shale oil in-situ conversion, etc., to improve the group company Energy utilization rate has provided useful explorations in promoting energy conservation, emission reduction and the development of new energy sources.