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油田注水开发过程中,如何确定注水井分层注水量是油藏工程师们关心的问题.通过对注水井分层注水量劈分的影响因素进行分析,采用灰色关联分析方法确定出影响劈分系数的主要因素及其在劈分系数中所占的权重,实现了劈分系数中各影响因素之间的定量化对比,确定了注水井分层注水量公式.方法考虑了措施改造系数、射开砂岩厚度、注采井距、位置系数和注采井数等因素对劈分系数的影响,确定了注水井分层注水量公式,符合实际的开发特征,能够实现注水井科学、合理的配注.结合S区块目前注水开发过程中存在的层内矛盾及层间矛盾突出等问题,提出了分层注水的必要性,通过灰色关联分析方法确定了S区块的分层注水量公式,实现了区块的合理配注,对其它油田或区块注水开发具有一定的指导和借鉴作用.
How to determine stratified waterflooding volume in oilfields is a concern of reservoir engineers in the process of oilfield waterflooding.By analyzing the influencing factors of stratified waterflooding splitting in waterflooding wells, the gray correlation analysis method is used to determine the influence of splitting coefficient The main factors and the weight of the coefficient in the split coefficient to achieve a quantitative comparison between the various factors in the split coefficient to determine the injection well stratified water injection formula.Methods Taking into account the transformation coefficient, The thickness of sandstone, the well spacing of injection and production, the location coefficient and well number of injection and production on the split coefficient, the stratified water injection formula of water injection well is determined, which accords with the actual development characteristics and can realize the scientific and rational injection of water injection well In view of the problems such as the intra - layer conflicts and the contradiction between layers in current waterflooding process of S block, the necessity of stratified water injection is put forward, and the formula of stratified water injection amount is determined by gray relational analysis method The rational allocation of blocks with other areas or blocks of water injection has some guidance and reference.