复杂河流相KL油田初期产能评价及影响因素分析

近年来,渤海南部以复杂河流相油田为主的多个油田相继投产,整体产能与油田开发方案设计较为一致,但是单井产能差异较大。为了合理地进行产能评价,以渤海南部KL油田群为例,将油田投产初期产能与ODP方案产能进行对比,详细剖析了比采油指数、储层厚度、储层物性、时间校正系数及层间干扰系数等因素对产能评价的影响,并对比采油指数、时间校正系数、层间干扰系数提出了新的校正方法,首次提出利用电阻率校正比采油指数,多元回归法确定层间干扰系数。

Initial production capacity evaluation and its influencing factors analysis in complex fluvial KL oil field

In recent years,several complex fluvial deposit oilfields in southern Bohai has been put into production and the total production is consistent with development plan,while the single well productivity is quite different.In order to get a reasonable production capacity evaluation,by taking KL oil field group in southern Bohai Sea as an example,through comparison of the initial production and the ODP plan,the influence of specific productivity index,reservoir thickness,reservoir properties,time correction factor and interlayer interference factor to production evaluation was respectively analyzed.And therefore,the new correction methods for oil productivity index per meter,correction coefficient of time and interlayer interference coefficient are put forward.Using resistivity to correct oil productivity index per meter and multiple regression method to determine the interlayer interference coefficient are proposed at the first time,and it is of great guiding significance for the productivity evaluation of oil field in construction and the allocation of comprehensive adjustment wells.