国内各油田已用190系列柴油机取代MB820柴油机,且取代数量和速度近年来日益增加。就川东钻探公司而言,已在用108台,占钻井用大功率柴油机的62％。190系列柴油机作为钻井动力机,对提高钻井速度,提高钻井装备可靠性,降低钻井成本,起到了不可低估的作用。但是190系列柴油机也存在一定缺陷。笔者对190系列柴油机的缸盖与机体结合面漏机油问题进行了实地调查,新机开始漏油时间最短57小时,最 The domestic oilfields have replaced the MB820 diesel engines with 190 series diesel engines, and the replacement quantity and speed have been increasing in recent years. For Chuandong Drilling Company, 108 units are in use, accounting for 62% of the drilling high-power diesel engines. As a drilling power machine, 190 series diesel engine plays an important role in improving drilling speed, improving drilling equipment reliability and reducing drilling cost. But 190 series diesel engine also has some defects. The author of the 190 series diesel engine cylinder head and the body surface leakage oil leakage conducted a field survey, the new machine began the shortest oil spill 57 hours, the most