Research on Early-Warning Method and its Application of Complex System of Circular Economy for Oil and Gas Exploitation

It is a very important link to determine the reference in the warning of circular economy development, because it's the key to ensure the accuracy of warning result. To establish reference not only have to consider the convenience of data calculation, but also have to consider patterns of economic exploitation complied with the principle of circular economy when choosing criterion-referenced indexes. Only in this way can we ensure the warning results as accurate as possible, give timely warning to the exploitation methods which can't meet the circular economy and guide the formulation of regulatory policies. In this paper, on the basis of operational early-warning Indexes system of complex system of circular economy for oil and gas exploitation, early-warning method with fuzzy ISODATA cluster analysis has been established. Furthmore, decision analysis of warning outcome has been analyzed, which is combined with practice of LN oil field of T Company. The author believes that the fuzzy ISODATA cluster analysis based early warning system and decision analysis would be practicability. (C) 2011 Published by Elsevier Ltd. Selection and peer-review under responsibility of RIUDS