首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 15 毫秒
1.
2.
3.
4.
5.
Translated from Khimicheskoe i Neftyanoe Mashinostroenie, No. 8, pp. 12–13, August, 1991.  相似文献   

6.
The commonly used heavy oil viscosity models are just for low water cut stage, but they have some limitations when the viscosity of other oil samples is calculated in high water cut stage, this paper presents a new and simple method in high water cut stage to predict the viscosity of heavy oil, which can measure the viscosity of heavy oil by the temperature under the condition of different water cut. Compared with the commonly used model, the new model has the small computation error and can be tested in practices in calculating the viscosity of similar oilfields in high water cut stage.  相似文献   

7.
8.
9.
10.
11.
12.
The basic physicochemical indexes of M-10-D2(m) engine oil change much less intensively in a gas engine than in a diesel. Low accumulation of elements-indicators of parts wear-and fouling of parts by carbon and varnish deposits were noted. Formation of ash deposits in the valves was more important. Dithiophosphate additives were depleted similarly in both engines. Information on the requirements for special oils for gas engines is reported __________ Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 4, pp. 24–27, July–August, 2007.  相似文献   

13.
Translated from Khimicheskoe i Neftyanoe Mashinostroenie, No. 11, pp. 28–30, November, 1993.  相似文献   

14.
Chemical and Petroleum Engineering -  相似文献   

15.
16.
17.
18.
19.
发动机是可控震源的动力来源,发动机的损坏将直接导致可控震源无法工作,因此我们必须防患于未然,加强对发动机的日常维护保养,及时解决一些小问题,以避免大问题的出现。本文对现用可控震源的主流发动机——底特律S60发动机机油检查发现的异常情况进行了介绍和分析,进一步说明排除故障的过程。  相似文献   

20.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号