基于流线模拟的低渗透油藏中后期调整研究  

ADJUSTMENT STUDY DURING MIDDLE-LATE DEVELOPMENT STAGES OF LOW-PERMEABILITY OIL RESERVOIRS BASED ON STREAMLINE SIMULATION

作　　者：吴琼[1] 李相方[1] 罗万静[2] 张英芝[3] 

机构地区：[1]中国石油大学石油工程教育部重点实验室,北京102249 [2]中国地质大学能源学院,北京100083 [3]大庆油田有限责任公司榆树林油田开发有限责任公司,黑龙江大庆151100

出　　处：《大庆石油地质与开发》2009年第6期110-114,共5页Petroleum Geology & Oilfield Development in Daqing

基　　金：基金项目：国家“973”重点基础研究规划项目（2003CB214602）和中国石油天然气股份公司重点科技攻关项目（06.02A-02-011

摘　　要：早期低渗透油藏井网设计时往往未能充分考虑微裂缝发育对生产的影响，导致基础井网不能适应油田中后期开发需要。针对低渗透油田微裂缝发育导致渗透率呈现明显方向性的特点，采用考虑渗透率平面非均质性和井网方向的流线模拟技术，对油田整个生产动态特征进行系统评价，并在此基础上提出基于流线特征的后期调整方法和思路。该方法从理论上为下步井网调整和大型数值模拟奠定了基础，也为其他类型的低渗透油藏井网设计和调整提供了一种方法和思路。At the early stage of oilfield development, the well pattern design for low-permeability oil reservoirs usu- ally fails to take full account of the effects of the micro-fractures on production, as a result of which, the basic well pattern can not meet the requirements of middle-late development stages. Regarding to the feature of low-permeabil- ity oil reservoir that micro-fractures may cause the directivity of permeability, the technique of streamline simula- tion, which considers the areal heterogeneity of permeability and the direction of well pattern, has been applied to systematically evaluate the characteristics of production performance of the whole oilfield and the well pattern adjust- ment plans and clues for late development stage based on the streamline features have been proposed. The stream- line simulation has laid a theory foundation for further well pattern adjustments and large-scale numerical simulations, and also inspired adjustment plans and clues for other types of well patterns of low-permeability oil reservolts.

关 键 词：低渗透油藏 流线模拟 井网调整 平面非均质性 

分 类 号：TE319[石油与天然气工程—油气田开发工程]