【摘要】 认识和掌握低渗透油田开发的特殊规律是开发好低渗透油田的基础。本文研究认为与常规中、高渗透率油田相比，其特点：①低渗透油层一般连续性差，采收率与井网密度关系特别密切；②低渗透油层存在“启动生产压差现象”，渗流阻力和压力消耗特别大；③低渗透油田见水后，采液和采油指数急剧下降，对油田稳产造成严重威胁；④低渗透油田一般裂缝都较发育，注入水沿裂缝窜进十分严重。更多还原

【Abstract】 Recognizing and mastering the special development law of lowpermeability oilfield is the basis of better development of low permeability oilfield- Comparedwith the medium high permeability dilfield, this paper gives the characteristiis of lowpermeability as follow: ①low permeability layer has worse connectivity ordinarily; ② lowpermeability layer has the appearance of start-up production pressure differential, and itsresistance force to seepage flow and pressure lost is greater; ③oil productivity index andliquid production index of low permeability oilfield decreases rapidly after waterbreakthrough, so the stable production of the oilfield is menaced seriously; ④ lowpermeability oilfield has more fractures, so injected water channelling is very serious alongfractures.更多还原