隔夹层参数对底水油藏注水效果影响数值模拟研究——以渤海A油藏为例  

Numerical simulation study of the effect of interlayer parameters on water injection in bottom water reservoir--by taking A oil reservoir in Bohai as an example

作　　者：孙恩慧 杨东东 杨威 刘博伟 谭捷 SUN Enhui;YANG Dongdong;YANG Wei;LIU Bowei;TAN Jie(Bohai Petroleum Research Institute,Tianjin Company of CNOOC(China)Co.,Ltd.,Tianjin 300452,China)

机构地区：[1]中海石油(中国)有限公司天津分公司渤海石油研究院,天津300452

出　　处：《石油地质与工程》2020年第3期71-75,共5页Petroleum Geology and Engineering

摘　　要：基于渤海A油藏的实际开发参数,通过建立含隔夹层的底水油藏数值模型,利用油藏采出程度曲线、注水后含水上升率曲线等资料,开展了隔夹层参数对注水开发效果的影响研究。结果表明,隔夹层长度、隔夹层宽度以及隔夹层高度为影响注水效果的主要因素,隔夹层厚度和隔夹层渗透率为影响注水效果的次要因素;隔夹层长度比越大,注水井注水效果越好;隔夹层高度比越小,注水井注水效果越好。利用数值模型,开展了矿场试验,预测A30H2井注水后,A油藏增油量达4.5×10^4 m^3,井组增加采收率1.2%,达到了提高油藏采收率的目的。Based on the actual development parameters of A oil reservoir in Bohai,through the establishment of numerical model of bottom water reservoir with interlayer,the influence of interlayer parameters on water flooding development effect is studied by using the data of recovery degree curve and water cut rise rate curve after water flooding.The results show that the length,width and height of the interlayer are the main factors affecting the water injection effect,while the height and permeability of the interlayer are the secondary factors.The greater the ratio of interlayer length,the better the effect of water injection is.The smaller the ratio of interlayer height,the better the effect of water injection is.Based on the locally developed interlayer of A oil reservoir,the field test and simulation are carried out by using the numerical model.It is predicted that after water injection of well A30H2,the oil increase of A oil reservoir is 4.5×10^4m^3,and the increased recovery factor of well group is 1.2%.

关 键 词：底水油藏 水平井 隔夹层参数 注水开发 数值模拟 

分 类 号：TE313.7[石油与天然气工程—油气田开发工程]