石油地质与工程2025，Vol.39Issue(5)：15-19,5.DOI:10.26976/j.cnki.sydz.202505003
具有压敏特征的海上潜山油藏产能预测新方法
A new method for productivity prediction of offshore buried hill reservoirs with pressure-sensitive characteristics
李志超 1岳宝林 2胡修正 1李瑞峰2
作者信息
- 1. 山东能源兖矿教培中心,山东 济宁 272001
- 2. 中海石油(中国)有限公司天津分公司,天津 300459
- 折叠
摘要
Abstract
Aiming at the problem that the productivity prediction correction factor calculation method for off-shore oilfields has not fully considered the pressure-sensitive effect of fractured reservoirs,this study takes the typical fractured buried hill reservoir X Oilfield in the Bohai Sea as the research object.Through pres-sure-sensitive experiments on fractured reservoirs,the pressure-sensitive characteristics are quantified,where the fracture closure caused by pressure decline in the near-wellbore area after well production re-duces the reservoir seepage capacity.The results show that with the decline of formation pressure,the per-meability exhibits an exponential decreasing relationship with pressure.On this basis,a plane radial flow model for permeability-gradient formations is constructed,and an iterative algorithm is implemented using C#programming to propose a productivity correction factor calculation method considering pressure-sensi-tive effects.A six-month field test was carried out on a jack-up extended testing platform,and the meas-ured data show a high degree of agreement between the productivity variation law of the fractured buried hill reservoir and the model calculation results,verifying the reliability and effectiveness of the method.The re-search results provide references for productivity prediction in similar offshore oilfields.关键词
裂缝型潜山油藏/产能校正/压力敏感/延长测试/采油指数Key words
fractured buried hill reservoir/productivity correction/stress sensitivity/extended testing/oil productivity index分类
能源科技引用本文复制引用
李志超,岳宝林,胡修正,李瑞峰..具有压敏特征的海上潜山油藏产能预测新方法[J].石油地质与工程,2025,39(5):15-19,5.
