大庆石油地质与开发

2014, v.33;No.166(06) 57-64

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多层合采油藏启动压力及层间干扰
THRESHOLD PRESSURE AND INTERLAYER INTERFERENCE FOR MULTI-LAYER COMMINGLED PRODUCTION OIL RESERVOIRS

张凯,路然然,张黎明,姜凯亮,李爱芬
ZHANG Kai,LU Ranran,ZHANG Liming,JIANG Kailiang,LI Aifen

摘要(Abstract):

层间非均质油田多层合采时,由于渗透率差异及流体性质不同会产生层间矛盾,因此有必要研究提液的有效性。为了系统、定量地研究合采的组合方式,开展了渗透率级差及黏度级差对层间干扰程度的实验,测定了低渗层位的启动压力随影响因素的变化。基于实验结果,建立了非均质多油层油藏模型,推导了考虑层间干扰的产能公式。通过实例计算,证明该方法正确且可行。
When the commingled production occurs among the layers for the heterogeneous oilfield,the differences of the permeability and fluid property result in the interlayered contradictions,it is necessary to research the effectiveness of the liquid enhancement.To systematically and quantitatively study the combined form,the experiments of the interference degree of the permeability and viscosity differentials are conducted,the changes of the threshold pressure with the affecting factors for the low-permeability layers are detected.Based on the experimental results,the model of the heterogeneous multi-layer oil reservoir is established,the productivity formula is derived.With the help of the case calculation,the method is proven right and feasible.

关键词(KeyWords): 非均质油藏;层间干扰;渗透率级差;黏度级差;启动压力;多层合采;产能公式
heterogeneous oil reservoir;interlayer interference;permeability differential;viscosity differential;start-up/starting/threshold pressure;multi-layer commingled production;productivity formula/equation

Abstract:

Keywords:

基金项目(Foundation): 国家重大专项(2011ZX05024-002-008);; 国家自然科学基金(61004095);; 高等学校博士学科点专项科研基金(20100133120003);; 中央高校基本科研业务费专项资金(13CX02053A)

作者(Author): 张凯,路然然,张黎明,姜凯亮,李爱芬
ZHANG Kai,LU Ranran,ZHANG Liming,JIANG Kailiang,LI Aifen

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