无夹层底水稠油油藏水平井波及系数主控因素研究  

Study on Main Control Factors of Sweep Coefficient of Bottom-Water Heavy Oil Reservoir Without Interlayer Developed by Horizontal Wells

作　　者：孙一丹 周文胜[1,2] 刘凡 王励琪 SUN Yidan;ZHOU Wensheng;LIU Fan;WANG Liqi(State Key Laboratory of Offshore Oil Exploitation,Beijing 100028,China;CNOOC Research Institute Co.Ltd.,Beijing 100028,China)

机构地区：[1]海洋石油高效开发国家重点实验室,北京100028 [2]中海油研究总院有限责任公司,北京100028

出　　处：《重庆科技学院学报（自然科学版）》2023年第2期58-62,共5页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：“十三五”国家科技重大专项“海上稠油油田开发模式研究”(2016ZX05025-001)。

摘　　要：在水平井开发底水稠油油藏过程中,受多种因素影响,底水呈现非活塞式推进、流线形态不断变化,导致波及系数难以预测。基于典型油藏实际生产动态分析,结合灰色系统关联分析法和数值模拟技术,确定了波及系数的主控因素及变化规律。研究表明,水平井开发的无夹层底水稠油油藏波及系数主要受产液能力、避水高度、水平段长度、井距和平均渗透率等因素的影响;可根据各主控因素对底水稠油油藏波及系数的影响,对水平井的设计进行优化。During the development of bottom water heavy oil reservoirs by horizontal wells,due to various factors,the bottom water presents a non-piston type propulsion,and the flow line shape is constantly changing,resulting in difficulty in predicting the sweep coefficient.Based on the actual production performance analysis of typical reservoirs,combined with the grey system correlation analysis method and numerical simulation technology,the main control factors and variation rules of sweep coefficient are determined.The results show that the sweep efficiency of bottom-water heavy oil reservoirs with no interlayer is mainly influenced by fluid production capacity,water avoidance height,horizontal section length,well spacing and average permeability.The design of horizontal wells can be optimized according to the influence of main control factors on sweep coefficient of heavy oil reservoirs with bottom water.

关 键 词：底水稠油油藏 波及系数 水平井 主控因素 灰色系统关联分析 

分 类 号：TE345[石油与天然气工程—油气田开发工程]