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China is a big oil country, and its oil production and storage are in the forefront of the world. However, China's oil resources are mainly low-permeability reservoirs. It is characterized by small porosity, which leads to the increase of injection pressure and seriously affects the production rate. The main solution is to use polysilicon nano injection enhancer. Polysilicon nano materials can solve the problem of high injection pressure from the micro level. At present, there are many researches on polysilicon nano injection technology at home and abroad, but the research on the application of polysilicon nano materials in natural gas pipeline materials is still blank. In order to solve this problem, this paper will further study the injection enhancement effect of polysilicon nano materials in natural gas pipeline materials. First of all, through theoretical research and analysis, this paper believes that polysilicon nano injection technology has good application, good effect in oilfield injection pressure drop, and obvious advantages over other traditional injection additives. In order to further analyze the injection enhancement effect of polysilicon nanomaterials, the corresponding experimental model is established. The experiment is divided into two parts, one is the preparation of reagents and solvents. In this paper, nano polysilicon solution and corrosion inhibitor are re optimized. The other part is the specific test steps. In order to ensure the quality and verifiability of the test, this paper explains and records the test principle and steps in detail. After sampling and analysis of many core factors such as adsorption time and permeability, it can be seen from the analysis data that when polysilicon nanomaterials are injected, when the injection volume is about 1pv, the effect of depressurization is the best, and the comprehensive effect of depressurization is good. This study has achieved ideal results, which is of great significance to the related research of oil field. [ABSTRACT FROM AUTHOR]

Natural gas is an important energy in China's production and life. In the environment of advocating low-carbon life, natural gas is an important part of low-carbon energy. But what does not match with the demand is that the development technology of natural gas in China is relatively backward, and the most prominent one is the gas leakage phenomenon of natural gas pipeline. The aging and corrosion of natural gas pipelines often lead to more serious safety problems. At present, the main solution is to coat the natural gas pipeline with anti-corrosion materials, but the effect is not satisfactory because of the uneven quality of the materials. In order to solve this problem, the preparation method of nanocomposite inner coating and its application in natural gas pipeline are studied in this paper. Firstly, this paper focuses on the application of nano materials and nano composite materials in the field of anti-corrosion coating, and analyzes the physical benefits of materials. It is considered that the protective mechanism of the nanocomposite anticorrosive coating is mainly through the adhesion of the coating to the metal substrate, the mechanical isolation of the corrosive medium, the formation of passive protective film and electrochemical protection on the metal surface. In order to further analyze the specific effect of nanocomposite coating, the corresponding experimental model is established in this paper. Many comparative experiments including tensile property analysis, particle size analysis, hydrophobic property and DSC were carried out. It can be seen from the experimental data that the nano composite anti-corrosion coating performs well in the experimental test and has good corrosion resistance, but both the tensile property and hydrophobicity are related to the degree of hard segment. According to the comprehensive analysis, the nanocomposite inner coating is suitable for the weather pipeline, which is recommended to be popularized. [ABSTRACT FROM AUTHOR]

With the rapid development of industry and transportation in China, the incidence rate of open fracture caused by high energy injuries such as traffic accidents and falling height is increasing year by year. Based on the above background, the purpose of this paper is to study the application of ZnO nano materials with different dimensions in the rehabilitation of patients with limb fracture injury. In order to further solve the problem of limb fracture rehabilitation, zinc oxide nanomaterials are applied to fracture rehabilitation in this paper. The application of zinc oxide nanomaterials in fracture rehabilitation is realized by its strong antibacterial, high-efficiency stability and rich and colorful structure. In this paper, we propose to use the unique physical and chemical properties of ZnO nanomaterials to prepare artificial bone, bone cement, external fixation with good osteogenic performance and antibacterial performance, and carry antibiotics for the treatment of open fracture infection and bone defect. During the experiment, compared with other materials, the infection rate of external fixation was only 63%, and the inflammation index of artificial bone was only 2 mg/dl, which was far less than other materials. Moreover, using the excellent plasticity of ZnO nanomaterials, the oriented ZnO nanotube films were prepared, and the effect of inhibiting scar formation was confirmed through experimental research. In this paper, the unique physical, chemical and biological characteristics of zinc oxide nanomaterials were used to creatively introduce them into the treatment of infectious bone defect and injury rehabilitation caused by limb fracture. Through a series of in vitro and animal in vivo experiments, it was proved that zinc oxide nanomaterials can be used as ideal materials for the treatment of infectious bone defect, which provides new zinc oxide nanomaterials to solve clinical problems A new way of thinking. [ABSTRACT FROM AUTHOR]