METHODS FOR CALCULATING CAVITATORS FOR DEVICES DESIGNED BY SATBAYEV UNIVERSITY FOR CLEANING OIL AND GAS WELLS

被引：0

作者：

Kassenov, A. K. ^{[1
]}

Syzdykov, A. H. ^{[1
]}

Spirin, V. I. ^{[3
]}

Moldabekov, M. S. ^{[1
]}

Bukenova, M. S. ^{[2
]}

机构：

[1] Satbayev Univ, Alma Ata, Kazakhstan

[2] Satbayev Univ, Dept Petr Engn, Alma Ata, Kazakhstan

[3] Project Ctr LLC, Tula, Russia

来源：

NEWS OF THE NATIONAL ACADEMY OF SCIENCES OF THE REPUBLIC OF KAZAKHSTAN-SERIES OF GEOLOGY AND TECHNICAL SCIENCES | 2020年 / 02期

关键词：

Well productivity; throttle response; repair work; cavitation; hydrostatic pressure;

D O I：

10.32014/2020.2518-170X.34

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The article says that with long-term exploitation of oil and gas wells, production wells lose design capacity over time, and injection wells lose injectivity. After a certain period of time, these wells undergo repair and restoration work in order to restore the project flow rate and injectivity. One of the reasons for the failure of the wells is the overfilling of the filter zone with products of chemical and mechanical mudding and the deposition of mechanical suspensions in the well sump, as a result of which the productivity of the wells decreases below the permissible limits required by the production regulations. It is proposed to use special shells designed by Satbayev University for cleaning oil and gas wells using cavitated liquid as a cleaning agent. A technique is proposed for calculating the cavitators of these devices for oil and gas wells depending on the number of cavitation, the flow rate of the flushing fluid, the hydrostatic pressure of the fluid in the well, and the working pressure of the flushing pump. An example of the calculation of cavitators for the wells of the fields of JSC "Ozenmunaygas" is given.

引用

页码：81 / 86

页数：6