The paper has chosen the anti-corrosion coating as the downhole tubing corrosion protection measure, screened four kinds of coating material to do with performance evaluation.
选择防腐蚀内涂层作为井下油管防腐蚀措施。筛选了四种涂层材料进行性能评价。
2
Using coal gangue of Qitaihe as raw material, the best surface medication agent was screened through the test of medication choosing and rubber filling.
以七台河矿区煤矸石为原料，通过改性药剂选择试验和橡胶填充试验筛选最佳表面改性剂。
3
The material surface image screened by a CCD camera was processed to calculate the level of material by a computer, and then to control the valve of material container.