摘要
水平井压裂技术已经在薄层、低渗透油气藏以及页岩气的开发中得到了广泛的应用,其产能预测方法是进行油气层评价、合理高效开发的基础。在对产能影响因素分析的基础上,系统总结了致密砂岩油气藏和页岩气藏压裂水平井的产能评价方法;认为除了对储层基质以及裂缝内流动机理进行表征外,裂缝的分布规律以及储层应力敏感性对产能的影响不容忽视;同时应重视大量钻井资料与物理模拟和数值模拟的结合,以提高产能预测的精度。
The fractured horizontal wells have been widely used in certain types of oil and gas fields, such as thin-layered reservoirs, low porosity/low permeability reservoirs and shale gas reservoirs. Production prediction of fractured horizontal wells is one of the bases in reservoir evaluation and effective production. In this paper, we presented the methods in predicting the two most important application area, tight sand （gas/oil） reservoirs and shale gas reservoirs, after listing the factors that affect production prediction. We concluded that in spite of the insight of flow mechanism in matrix and fractures, much attention should be paid to the distribution of fracture network and stress sensitivity of the reservoirs. Analysis of the large a- mounts of drilling data combined with physical simulation and numerical simulation would increase the ac-curacy of production prediction.
出处
《地质科技情报》
CAS
CSCD
北大核心
2015年第1期131-139,共9页
Geological Science and Technology Information
基金
国家科技重大专项"大型油气田及煤层气开发""鄂尔多斯盆地大牛地致密低渗气田勘探开发示范工程"项目(2011ZX05045-04-06)
关键词
压裂水平井
致密砂岩
页岩气
产能预测
fractured horizontal well
tight sand
shale gas
production prediction
