A Study On Methods Of Evaluating Oil Field Development System Of Water Flooding

By applying systematic engineering method and idea, the structure, characteristics and description method for oil field waterflooding system are studied, setting up index system and method for evaluating oil field development effect, based on which, the development effect and potential of Daqing Lasaxing oil field are analyzed.Based on comprehensive investigation, the system and method for evaluating oil field development effect are analyzed. Several issues are discussed, including: in-depth evaluation of single development unit and lateral correlation and evaluation of multi development units, static evaluation and dynamic evaluation, partial evaluation and overall evaluation;The comprehensive evaluation idea is proposed, i.e.“evaluating artificial-controlled development effect based on natural reservoir property”, 3 evaluation models are put forward, i.e.“system efficiency evaluation”educed from optimum oil production theory in oil field system,“input output evaluation”based on input output economic model in oil field development,“systematic engineering correlation evaluation”based on systematic engineering system; mathematic method for determining index system weight and muzzy mathematic method for oil field development muzzy evaluation are established.Through evaluation and analysis on development effects of 36 development units in Daqing Lasaxing oil field, it is shown that, this method has important role in fully understanding oil field development status, thoroughly analyzing and realizing existing problems and adjusting potential, this method can be popularized to other oil fields. This work will promote the application of system engineering in oil fields and the progress in oil field development theory and techniques.