关于龙凤山气田凝析气藏开发方式探讨

The Discussion on the Development Mode of Longfengshan Condensate Gas Field

龙凤山气田北201井的突破展示了该地区良好的油气资源潜力,开辟了新的勘探开发领域,将成为分公司油气上产的重要阵地。北201区块具有含气层位多、地层压力高、凝析油含量变化范围宽和油气藏类型复杂等特点,增加了开发方式和经济优选的复杂性。如何选择经济有效地开发方式至关重要,本文重点从技术角度和经济角度综合分析开发方式,通过对比技术指标和经济指标,认为衰竭式开发可以实现经济效益最大化,结合气藏地质特点,围绕实现效益开发提出两种不同井网的部署设想,利用其他层位对Ⅳ砂组适时进行能量补充,实现部分保压开发,提高凝析油采收率。

The break of Bei 201 well in Longfengshan condensate gas field shows the good oil and gas resource potential and opens up the new exploration and development field,moreover,which will become the important position of oil and gas increasing production of branch.The well has features including multi-gas bed,high-formation pressure,big condensate oil content variation range and complex oil and gas reservoir mode,which increases the complexity of developing mode and economy optimization.It is the important choosing the useful developing mode,the paper analyzes developing mode from a technical and economic point and by the Contrast technique index and economic index thinks depletion development can achieve maximum economic benefits,combining the feature of Gas reservoir geological characteristics presents Two kinds imagine of different well pattern deployment in view of realizing the benefit development.Ⅳsand group timely to make use of the other layers of energy supplement,realize partial pressure maintaining development,improve the condensate oil recovery.