reserve production
1.The relationship of reserve-production ratio and time and the cut-off value of stable production have been derived on basis of Arps decline curve and mathematical model of production prediction.
2.Based on the analyses of Arps production decline law and changes of remaining reserve-production ratio. a simple and convenient method for estimating decline factors and recoverable reserves during decline period in any oil- field was presented.
3.Then the Delphi technique and principal components analysis are used to choose six factors from the system to form a new integrated index-degrees of petroleum security. The six factors are the domestic crude oil reserve-production ratio, the domestic crude oil reserve replacement ratio, dependency of domestic petroleum consumption on import, concentration ratio of domestic petroleum imports, international crude oil prices and domestic petroleum reserve storage level.
4.Some economists have suggested that land from the Conservation Reserve Program should be used for additional corn production.
6.By analyzing the production test data, we get the index production equation, bi nomial production, production degression equation and the single well control reserve.
7.A mathematical expression for such development indexes as recovery rates and recovery percent of reserve is established on the basis of the Arps decline production prediction model and the Arps decline development model is proposed.
8.3. Combining the reservoir description results and oilfield dynamic information, the paper simulates the reserve of the single sandstone and the whole W10 Block by using IMEX Simulator of CMG Company, as well as matching the production history data and pressure information of 34 production wells and 11 injection wells about 23 years.
9.A great deal of analysis and research illustrate that, the key to increase EOR, keep crude oil production stable with increases, decrease water cut in production wells i s to find out the distribution of subterranean remaining oil and to determine remaining oil saturation in reservoir beds and remaining reserves, which is an important foundation and prerequisite for effective application of stable production and tapping latent reserve measures and thrice oil extraction technology.
10.The new method, through making timely analysis of the production and operation of enterprises, can accurately reflect the quality of loans. In addition, with regard to various kinds of abnormal loans, bad debt reserve fund will be drawn in a fixed percentage, so that the loss of loans can be written off immediately by the bad debt reserve fund, and the current value of loans can be timely reflected.
