In order to meet the needs of oil and gas geological research and production, the Wuxi Petroleum Geology Research Institute of the Petroleum Exploration and Development Research Institute has developed a new hot-pressure simulation tester by modifying the heating system and automatic control system of the original conventional hot-pressure simulation tester. In the experimental geological application, the accuracy of the temperature control and temperature measurement of the simulator is improved, and the test results are more accurate and reliable.
Compared with the original simulator, the new simulator has been greatly improved in the following aspects: First, in the aspect of heat conduction, automatic temperature control is realized to ensure that the temperature in the kettle is consistent when the temperature is high and the temperature is constant. The simulation sample is consistent with the evolution of its products. Secondly, in terms of temperature control, by using the external temperature control and the internal temperature control method, the over-temperature phenomenon that may exist in the original instrument is completely avoided. The third is to reform the vacuum pump circuit. The automatic conversion between vacuuming and nitrogen filling is realized, and the operation is more convenient.
According to reports, the hot rock simulation test of source rock has been widely used in oil and gas exploration, especially in the study of organic matter evolution characteristics, oil and gas source comparison, source recourse and hydrocarbon generation mechanism and hydrocarbon migration. The use of hot-pressure simulation of source rock has given it unique results and rich information.
The successful development of the new conventional hot-pressure simulation tester is not only conducive to the popularization and application of this test method, but also because the simulation tester has the characteristics of accurately collecting and calculating the carbon number of liquid hydrocarbons from 6 to 14 fractions. It is of great theoretical significance to understand the hydrocarbon generation pattern of source rocks and to understand the geochemical change law of this fraction and the quantitative evaluation of the oil layer.
Cobalt Based Alloy Powder
Cobalt-based alloy powders are commonly used in plasma transfer arc welding (PTAW) due to their excellent high-temperature properties and resistance to wear and corrosion. These alloys are typically composed of cobalt as the base metal, with various alloying elements such as chromium, tungsten, nickel, and carbon added to enhance specific properties.
The use of cobalt-based alloy powders in PTAW offers several advantages, including:
1. High-temperature strength: Cobalt-based alloys exhibit excellent strength and resistance to deformation at elevated temperatures, making them suitable for welding applications that involve high heat.
2. Wear resistance: These alloys have a high hardness and resistance to wear, making them ideal for welding applications where the welded parts are subjected to abrasive or erosive conditions.
3. Corrosion resistance: Cobalt-based alloys offer good resistance to corrosion, making them suitable for welding applications in aggressive environments, such as those involving chemicals or saltwater.
4. Thermal conductivity: Cobalt-based alloys have good thermal conductivity, allowing for efficient heat transfer during welding and reducing the risk of heat-affected zone (HAZ) defects.
5. Compatibility with other materials: Cobalt-based alloys can be easily welded to a wide range of base metals, including stainless steels, nickel alloys, and other cobalt-based alloys, providing versatility in welding applications.
To use cobalt-based alloy powders for PTAW, the powder is typically fed into the plasma arc using a powder feeder. The powder is then melted by the high-temperature plasma arc and deposited onto the workpiece, forming a weld bead. The specific welding parameters, such as arc current, travel speed, and powder feed rate, will depend on the specific alloy and application requirements.
It is important to note that the selection of the cobalt-based alloy powder should be based on the specific welding application and the desired properties of the final weld. Different cobalt-based a
Co Powder,Cobalt 6 Powder,Cobalt 12 Powder,Cobalt 21 Powder
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