古509区块属于大庆外围区块,单井产能较高。通过对地质特征、储层物性及油水分布特征的研究,表明地质因素是单井产量较高的主要原因。并对开发各环节采取油层保护措施,利用液面恢复速度确定该区合理的套压,通过油井转注和完善注采关系来研究该区高产原因。 Ancient 509 block belongs to the outer block of Daqing, a single well higher productivity. Through the study of geological characteristics, reservoir physical properties and oil-water distribution characteristics, it shows that the geological factor is the main reason for the higher single-well production. In addition, reservoir protection measures are taken for all aspects of development. The reasonable recovery of pressure in this area is determined by the liquid surface recovery rate. The reason for high yield in this area is studied through the transfer of oil wells and the improvement of the relationship between injection and production.