摘要
对于具有底水驱动、气顶驱动和底水与气顶同时驱动的油藏,当使用水平井开采时,水锥和气锥水平井的现象是不可避免的。基于以往的研究成果,提出产量比(临界产量与绝对无阻流量之比)的概念,以及水平井与垂直井的产量比相同的假定,得到了预测水锥和气锥水平井临界产量的新方法及通式。通过不同方法的应用和对比表明,本文提供的方法是实用有效的。
For an oil reservoir with bottom water drive,gas cap drive or simultaneous drive of bottom water and gas cap,water and gas coning cannot be avoided when its oil production is in horizontal wells.Based on the author＇s existing study results,a concept of the production ratio（critical production rate / absolute open flow rate） and an assumption that the production ratio for a horizontal well is equal to that for a vertical well are presented,resulting in the new methods and general formulas to predict critical production rates in horizontal wells with water and gas coning.From the application and comparison of various methods,it is indicated that the prediction methods developed in this paper are practical and effective.
出处
《中国海上油气》
CAS
北大核心
2010年第1期22-26,共5页
China Offshore Oil and Gas
关键词
油藏
水平井
水锥
气锥
临界产量
预测方法通式
oil reservoir
horizontal well
water coning
gas coning
critical production rate
prediction method
general formula
