动静因素双重约束下储层压裂综合决策方法  

Comprehensive decision-making method for reservoir fracturing under dual constraints of dynamic and static factors

作　　者：徐凤兰 李琳琳 王永军 华莹 陈海君 刘学忠 XU Fenglan;LI Linlin;WANG Yongjun;HUA Ying;CHEN Haijun;LIU Xuezhong(Well Testing Branch of CNPC Bohai Drilling Engineering Company Limited,Langfang,Hebei 065007,China)

机构地区：[1]中国石油集团渤海钻探工程有限公司油气井测试分公司

出　　处：《油气井测试》2019年第5期67-73,共7页Well Testing

基　　金：渤海钻探工程有限公司科技研发类项目“华北重点区带测试评价技术与措施选层方法研究”(2016Z35K)

摘　　要：依靠钻井、测井、录井、取心资料的综合经验判断压裂选层,措施有效率低,具有一定的局限性。基于动静资料结合的流动单元法在统计分析二连探区60井层压裂措施资料基础上,根据压裂区域压力测试曲线及双对数-导数曲线特征,按照压裂效果好坏,将这些井层分为A、B、C三种类型,并建立压裂目标区域流动单元图版。绘制目标井压前实测压力历史曲线及压力-导数双对数诊断曲线,比照曲线分类标准与措施效果统计结果,可确定压裂改造选层。2018年11层应用表明,措施建议符合率100%,压裂有效率提高32%。该方法可定性、半定量为压裂选层提供依据,为优选压裂层位和优化压裂方案提供技术支持。Selecting fracturing layer by comprehensive experience of drilling,logging and coring data is inefficient and has certain limitations.After statistically analyzing of fracturing measures data of 60 wells in Erlian exploration area,the flow unit method which combines static with dynamic data,divides the fracturing effect of the layers into three types:A,B and C by according to the characteristics of pressure test curve and log-derivative curve in fracturing area.Then the flow unit chart of fracturing target area is established.By drawing the measured pressure history curve and pressure-derivative double logarithmic diagnostic curve of the target well before fracturing,comparing with the classification criteria of curve and the statistical results of the effect of measures,the formation selection for fracturing construction can be determined.The application of 11 layers in 2018 shows that the compliance rate of the proposed measures is 100%and the fracturing efficiency is increased by 32%.This method can provide qualitative and semi-quantitative basis for fracturing layer selecting,and provide technical support for optimizing fracturing layer and fracturing scheme.

关 键 词：动态资料 静态资料 定性 半定量 压裂选层 压裂效果 二连油田 

分 类 号：TE353[石油与天然气工程—油气田开发工程]