油环分为普通油环和组合油环两种。是一种活塞环。
,人氧化会有黑斑、皱纹,汽油氧化则会生成「胶质--Gum,这种黏性的物质严重时会造成活塞上的汽环（Gas Ring）和油环（Oil Ring）的粘结（Ring Sticking）,汽环粘结会造成活塞的气密性不足,不但会有动力损失,而且也会形成所谓的「Blow-By---曲轴箱吹漏现象,燃.
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刮油环 scraper ring ; [机] oil scraper ring ; oil control rail ; [机] oil scraping ring
抛油环 Oil thrower ; [机] oil slinger ; flinger ; thrower
阻油环轴承 lubri-seal bearing
甩油环 [机] oil slinger ; Lubricating ring ; oil striker ; oil thrower
滴油环 drip ring
油环开口间隙 piston ring gap clearance-oil control ; oil control
油环衬簧 expander oil rail
油环轴承 oil-ring bearing ; ring oiled bearing ; ring oiling bearing ; ring lubricating bearing
轴承油环 bearing ring
The conventional grid method is difficult to describe condensate gas reservoirs with thin oil ring. Based on the bedding grid and horizontal grid, mixed grid-modeling method was established by analyzing oil ring distribution and the existing reservoir simulation grid technique.
分析了薄油环分布特征及现有油藏模拟网格技术特点,引入顺层网格和水平网格,论述了混合网格建模方法。
参考来源 - 底水凝析气藏薄油环开采数值模拟方法研究·2,447,543篇论文数据，部分数据来源于NoteExpress
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