1. **Plastic Thread Protectors** – **Transportation Scenarios**: – In short-distance transportation or when the transportation environment is relatively mild, plastic thread protectors are a good choice. Since they are lightweight, they won’t add excessive load to the transportation equipment. For example, during the transportation from the factory warehouse to a nearby oil equipment rental site, plastic protectors can effectively prevent minor collisions and frictional damage to the threads during transportation. – For situations that require frequent loading and unloading, the lightness of plastic also shows its advantage. Such as in the transfer process of small land oil well equipment, workers can install and remove these protectors more easily, improving work efficiency. – **Storage Scenarios**: – When oil casings need to be stored indoors or in a relatively dry and low-corrosion environment for a long time, plastic material can provide sufficient protection. It can prevent dust, small particles and other impurities from entering the threads, and its own chemical stability can resist general air oxidation. For example, in an equipment reserve warehouse, when storing oil casings waiting for use in the next project, plastic thread protectors can keep the threads clean and intact. – **Light-duty Usage Scenarios**: – In shallow or low-pressure oil well environments where the strength requirements for oil casings are not high, plastic thread protectors can meet the basic protection needs. These oil wells may have a short production cycle or relatively simple formation conditions, and the plastic material can effectively protect the threads and ensure the normal connection and use of oil casings during their service life. 2. **All-steel Thread Protectors** – **Transportation Scenarios in Harsh Environments**: – During long-distance transportation, especially through rough terrains or sea transportation, all-steel thread protectors perform outstandingly. For example, during the transportation of oil casings from an overseas supplier to a domestic offshore drilling platform, the all-steel material can withstand the severe jolts, collisions and seawater erosion during transportation. Its high-strength characteristics can effectively prevent serious physical damage to the threads during transportation. – **High-stress Working Scenarios**: – For deep wells, ultra-deep wells and high-pressure oil wells, all-steel thread protectors are essential. In these oil wells, oil casings have to bear huge formation pressures and complex stress environments. The high hardness and strength of the all-steel material can ensure that the thread protectors will not deform under extreme pressure, thus maintaining the integrity of the threads. For example, in some deep-sea oil wells with a depth of more than 5,000 meters, all-steel thread protectors can provide reliable protection for the threads of oil casings and ensure the safe operation of the oil wells. – **Scenarios in High-corrosion and Wear Environments**: – In formation environments containing a large amount of corrosive substances (such as high-concentration hydrogen sulfide, carbon dioxide, etc.), all-steel material (especially all-steel material with special anti-corrosion treatment) can resist corrosion. At the same time, in the case of frequent installation and removal of oil casings, the wear resistance of the all-steel material can also play an advantage, reducing thread damage caused by friction. For example, in the exploitation of some acid gas fields, all-steel thread protectors can effectively resist the corrosion of acid gases on the threads. 3. **Steel-plastic Composite Thread Protectors** – **Scenarios in Complex and Variable Environments**: – In scenarios that require both certain mechanical stress resistance and corrosion resistance, steel-plastic composite material is an ideal choice. For example, in some land oil wells near the seaside, oil casings may be corroded by the salt brought by the sea breeze, and at the same time, they have to bear some external force impacts during equipment installation and maintenance. The steel-plastic composite material combines the strength of steel and the corrosion resistance of plastic and can handle such complex environments well. – **Scenarios Requiring a Balance between Cost and Performance**: – In some medium-sized oil well projects, there are certain requirements for cost control and performance. Steel-plastic composite thread protectors can provide good thread protection performance while reducing costs. Its cost-effective advantage makes it a preferred choice in such scenarios. For example, in some medium-sized land oil well exploitation projects, using steel-plastic composite thread protectors can save material costs while meeting the protection needs and ensuring the normal use of oil casing threads during the production cycle.
