CAJ | 학술논문

针对多层砂岩低渗透油藏油水井动态监测资料少，分层动用状况分析难度大的问题，提出了一种较实用的分层动用状况研究新方法。从微观渗流机理和宏观开发规律出发，研究了渗流阻力倒数、平均孔喉半径、夹层频数倒数、射开油层有效厚度、单井月产液量等影响低渗透油藏注水开发效果的动、静态因素与单井累产油之间的关系，并通过层次分析法确定各因素的权值，建立了油水井分配系数的计算公式，确定油井的分层产油量，判别油藏分层动用状况。以张强凹陷Q1区块和渤南油田四区低渗透油藏为例进行验证，结果表明，该方法可行，能够用以分析无动态监测资料井点的分层产油量，对下一步的挖潜具有一定的指导作用。
침대다층사암저삼투유장유수정동태감측자료소，분층동용상황분석난도대적문제，제출료일충교실용적분층동용상황연구신방법。종미관삼류궤리화굉관개발규률출발，연구료삼류조력도수、평균공후반경、협층빈수도수、사개유층유효후도、단정월산액량등영향저삼투유장주수개발효과적동、정태인소여단정루산유지간적관계，병통과층차분석법학정각인소적권치，건립료유수정분배계수적계산공식，학정유정적분층산유량，판별유장분층동용상황。이장강요함Q1구괴화발남유전사구저삼투유장위례진행험증，결과표명，해방법가행，능구용이분석무동태감측자료정점적분층산유량，대하일보적알잠구유일정적지도작용。
It is difficult to analyze the performance of multi-layered sandstone reservoir,because there is not adequate dynamic detection data for producers and injectors. A new approach to the question is presented. Based on microscopic percolation mechanism and macroscopic development characteristics,after the relationship between cumulative production of single well and the dynamic and static factors which affect waterflood development,such as reciprocal value of filtrational resistance, average pore throat radius,reciprocal value of interlayer frequency,net thickness and monthly liquid production is researched, and a discriminant matrix is established to determine the weights of the various factors. Then distribution coefficient of every producer is gotten,so are the layered accumulative production and performance. The instance validation results show that the method is suitable,and can be used to analyze the performance of wells without dynamic detection data,for guiding the later exploitation.