The Economic Feasibility Study Of Polymer Flooding Project Of Thirteen Block In Daqing Oil Field

The application of polymer flooding has become an important means of maintaining the oilfields in a stable production stage and increasing production, with most of the oilfields in China entering the high water cut development stage. It is very important to implement the study of economic feasibility, considering that the polymer flooding projects have the characteristics of high risk, large investment, a long payback period and quite difference effect of polymer flooding in different type reservoirs. This paper focuses on the economic feasibility study of polymer flooding in Xing Thirteen Block. The results have significance reference on oil development decision of Xingnan oilfield polymer flooding and economic feasibility on the industrialized block in follow-up promotion.On base of the development index prediction of the polymer flooding of Xing Thirteen Block, this paper implements economic feasibility through the internal revenue rate(IRR),net present value(NPV),payback time(PT) methods and reasonable cost split through mathematical method of regression equation, genetic algorithm. The results are summarized as follows:(1) By using numerical simulation technology, it is clarified that development index of polymer flooding is much better than that of water flooding in Xing Thirteen Block.(2) It is clarified that the cost of oil and gas production was main influencing factors of total cost in different stages,which provides direction for the control of the operation expenditures(OPEX) and the total cost of polymer flooding in the future.(3) The break-even point(BEP) of polymer flooding in Xing Thirteen Block was found, and in relation to profit and loss sensitivity analysis of four indexes including construction expenditures, OPEX,production and crude oil prices.(4)The polymer flooding economic benefits is still better than water flooding in the condition of the total investment, per ton of oil price are higher than those of water flooding. Block polymer flooding project is feasible in economy.Through thoroughly research of polymer flooding in Xing Thirteen Block oneconomic feasibility, to draw the reasonable and scientific evaluation of economic results, confirmed the block poly flooding economic feasibility, can effectively guide the poly flooding schemes, so as to realize the block polymer flooding development of optimal efficiency of the target. At the same time to carry out follow-up in Xingnan oilfield of industrialized block the implementation of economic feasibility study to provide the experience, is conducive to the polymer flooding the gradual expansion of the scale of development of oil can to maintain stable production of crude oil and control poly flooding development costs reasonable and important basis and help oil companies more scientific decision-making polymer flooding project, promote enterprise management level can be improved, to promote the development of petroleum industry of our country economic takeoff.