新疆石油地质 ›› 1998, Vol. 19 ›› Issue (6): 512-514.

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水驱砂岩油田开发后期最小地层压力保持水平的确定———以河南双河油田为例

杨堃   

  1. 河南石油勘探局开发处 南阳 473132
  • 收稿日期:1998-02-10 发布日期:2020-09-19
  • 作者简介:杨堃:工程师 油藏工程

DETERMINATION OF MINIMUMFORMATION PRESSURE MAINTENANCE IN MATURE WATER-DRIVE SANDSTONEOILFIELD—An example from Shuanghe oilfield

Yang Kun   

  1. Development Department, Henan Petroleum Exploration Burreau ,Nanyang 473132
  • Received:1998-02-10 Published:2020-09-19
  • About author:Yang Kun, Engineer, Reservoir Engineering

摘要: 针对非均质砂岩油田开发后期由于含水率不断上升、地层压力水平下降而进行的注采结构调整, 必须要在合理的地层压力下限值以上进行, 才能获得好的经济效益。作者以河南双河油田为例, 从采油工艺原理与矿场资料相结合入手找出了一种最小地层压力值的求解方法, 实际应用效果良好。这证明, 水驱砂岩油田开发后期开发单元或油田的最小压力保持水平界限, 可作为开发后期综合调整的依据。

关键词: 水驱, 砂岩油气藏, 开发后期, 地层压力, 应用, 注采系统, 调整

Abstract: In the light of continuous rising of watercut and decrease of formation pressure in mature heterogeneous sandstone oilfield, injection-production ratio must be adjusted above the reasonable lower limit of formation pressure so that better economic benefit can be obtained.A method for solving minimum formation pressure was given based on theory of oil production technology and production data in Shuanghe oilfield and performed well.It is showed that minimum pressure maintenance may be used as the basis for comprehensive adjustment in later period of oilfield development.

Key words: Water drive, Development later stage, Formation pressure, Application, Injection-production system, Adjustment