Research On The System Benefit Evaluation Of Heavy Oil Exploitation And Its Application

In the context of lack of the dilute oil resources succeed, the heavy oil fields developedrapidly in near two years. Many of our heavy oil fields are in the late stage of the cyclic steamstimulation and the cost pressure is greater and greater. The high requirement of heavy oiltechnology and the difficult management which lead to the development costs is more thanthe marginal cost. In order to alleviate the grim situation and achieve healthy&sustainabledevelopment, oil fields should continue to reduce the costs and improve the economicefficiency of the heavy oil fields.In this paper, the current situation of oilfield benefit evaluation and problems areanalyzed and the importance of the benefit evaluation system is illustrated. In the foundationof objectives and principles, benefit evaluation system for the development of block isestablished. The AHP is used to determine the level of each index and the fuzzycomprehensive evaluation is used to analyze the results of the evaluation. In addition, themulti-angle evaluation is carried out, which include the cycle benefit evaluation,comprehensive benefit evaluation, etc.The paper combines the reality of A heavy oil block, draw a basic conclusion which isthe benefit evaluation of A is at a higher level. But there are still a series of problems such asequipment aging, lacking materials etc. At last, this paper puts forward the correspondingmeasures to solve these problems. Through the establishment of a set of quantitative andqualitative combined system of benefit evaluation, it will have certain guiding significance tohealthy development of the oilfield.