低渗透油田开发实践及认识  

Development practice and knowledge on low permeability oil reservoir

作　　者：崔梅红[1] 殷志华[1] 

机构地区：[1]江苏油田分公司试采一厂,江苏江都225265

出　　处：《断块油气田》2007年第4期40-42,共3页Fault-Block Oil & Gas Field

摘　　要：通过对沙埝低渗透油藏储层、流体特征及开发特征的分析,指出了其开发中存在的主要问题是:井网密度总体偏低、开发层系划分过粗、注采井数比偏低等。利用油藏工程方法、室内实验及矿场数据研究了相应的开发政策,实施调整后取得明显效果,老井两项递减率明显下降,含水上升平缓,绝大多数主力单元产量平稳,压力水平总体上稳中有升。By means of the analysis for the fluid and development characteristics of low permeability oil reservoirs,we have found out the major problems existing as the low well pattern density,less precise development sequence classification,less injection-to-production-well ratio.We worked out the development policy of low permeability oil reservoirs in Shanian Oilfield by utilizing reservoir engineering,indoor experiments and reservoir data and implemented adjustment of developing.The obvious results have been obtained in adjustment,for example,the natural decline rate and composite decline rate of oil wells obviously drop,water cut rises up comparatively reposefully,the main unit of the overwhelming majority is steady in output and the pressure level is steadily increasing.

关 键 词：低渗透储层 开发特征 井网密度 开发层系组合 注采井数比 

分 类 号：TE348[石油与天然气工程—油气田开发工程]