Aiming at the problems that dip sticks are easy to bend and low oil level can't be mea-sured, the writer puts forward two measures improving the structure of dip sticks. 针对量油尺容易弯曲和不能测量低液位的问题,提出改进量油尺结构的两项措施。
The application conditions of usual process to a low pressure centrifugal compressor in which the seal oil pressure is controlled by high level are analyzed, improvement measures are suggested, and examples are taken in the paper. 本文分析了低压离心压缩机采用高液位控制封油压力的常用流程的使用条件,提出了改进措施并列举了实例。
To low percolation reservoir, a new recovering oil method which is at constant flow pressure can prevent the energy near bore hole crocking up quickly, and help refreshing liquid level in bore hole and keeping formation energy. 定流压间歇试采是一种新的试采方法,对于低渗透储层试采井采用定流压试采方式,可以防止井筒附近能量衰竭过快,有利于井筒液面恢复和保持地层能量。