The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
To effectively control the phenomenon of channeling and improve injection water utilization ratio, it is needed to distinguish the inefficient circulation areas where have channeling paths. Based on water drive reservoir characteristics and influential factors, the reservoir evaluation index system is formed including static and dynamic parameters. Quantitative grading, weights of factors and grading...
For multilayer sandstone reservoir 1, high permeability water passage would be formed between oil well and water well at the later stage of water drive. This caused the injected water circulation with no or low efficiency and thus decreased the production of oil wells. In order to improve the effect of water drive, measures of profile control and/or water shutoff must be taken. The key problem is...
Fracturing of oil layer is one of the effective measures of improving inefficient well capacity, and it is applied by many oil fields at home and abroad. This paper analyzes quantitatively the main factors of influencing the fracturing effects, gives the relation between fracturing effects and the parameters, and divides the grade intervals of each influencing factor quantitatively, then establishes...
Coal bed methane (CBM) potential evaluation is important for choosing the prospective target area for CBM exploration and production. Many unwise evaluations may have induced the high failure ratio of CBM exploration and development in China. Developing a comprehensive model for CBM potential evaluation is also complicated by the diverse geologic and engineering factors. In this paper, a fuzzy analytic...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.