罗27长4+5油藏水淹井调剖治理效果评价
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摘要
罗27长4+5油藏裂缝性特低渗油藏于2009年开始规模开发,属于岩性油藏,其油层主要为大规模的湖泊三角洲相沉积。油藏分注区注采关系复杂,精细管理难度大,稳产难度大。该油藏目前已经进入中含水开发阶段,随着注水开发时间的延长和采出程度的增加,主力油层见水,含水上升速度加快,见水井不断增加,剖面和平面矛盾加剧,油田递减加大,稳产形势严峻。
The fractured ultra-low permeability reservoir of Luo 27 Chang 4+5 reservoir began to develop in scale in 2009.It belongs to lithologic reservoirs,and its oil layer is mainly composed of large-scale lake delta facies deposition.The injection-production relationship in the reservoir sub-zone is complicated,the fine management is difficult,and the stable production is difficult.The reservoir has entered the middle water-bearing development stage.With the extension of water injection development time and the increase of production degree,the main oil layer sees water,the water-bearing rising speed is accelerated,see the water well increase,the contradiction between the section and the plane is intensi?ed,and the oil ?eld diminishing increases.The stable production situation is grim.
The fractured ultra-low permeability reservoir of Luo 27 Chang 4+5 reservoir began to develop in scale in 2009.It belongs to lithologic reservoirs,and its oil layer is mainly composed of large-scale lake delta facies deposition.The injection-production relationship in the reservoir sub-zone is complicated,the fine management is difficult,and the stable production is difficult.The reservoir has entered the middle water-bearing development stage.With the extension of water injection development time and the increase of production degree,the main oil layer sees water,the water-bearing rising speed is accelerated,see the water well increase,the contradiction between the section and the plane is intensi?ed,and the oil ?eld diminishing increases.The stable production situation is grim.
引文
[1]郭建.西峰油田长8油藏堵水调剖技术研究.中国石油和化工标准与质量,2012,33(11):131.
[2]刘强灸等.虎狼峁长6油藏水淹井治理技术研究.石油化工应用,2011,30(8):34-38.
[2]刘强灸等.虎狼峁长6油藏水淹井治理技术研究.石油化工应用,2011,30(8):34-38.