油藏综合地球物理技术在垦71井区的应用
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摘要
油藏综合地球物理技术在油田滚动勘探与开发的储层描述、精细地质建模中发挥着越来越重要的作用。油藏地球物理中相关技术的研究在国内外已有不同程度的开展,但针对处于开发中后期老油田剩余油预测的油藏综合地球物理技术的应用研究还很少。为此,开展了包括地质、地震、测井、岩石物理、油藏建模、油气开发等多学科油藏综合地球物理技术的应用研究。在高精度三维地震、数字三分量检波器采集的三维多波地震、井间地震、三维VSP等资料高分辨率成像的基础上,发展了两项综合应用技术,即提供储层三维空间精细地球物理属性模型的多资料井震联合储层反演技术,以高精度构造解释与储层解释为基础的多尺度资料匹配确定性油藏建模技术。在胜利油田垦71井区应用油藏综合地球物理技术预测剩余油,取得了很好的效果。根据预测结果实施了5口补孔改层措施井,部署了13口新井,钻探结果与预测结果基本相符,预计可提高5%的油气采收率。
The integrated geophysics technique in reservoir is more and more important in the reservoir description of rolling exploration and development and in detailed geological modeling.Study on sin- gle geophysics technique has been carried out both at home and a- board to different degrees.However,the application research on integrated geophysics technique for predicting residual oil at the middle and later stage of development in old oilfield has been rarely reported.Therefore.the research on integrated geophysics tech- nique in reservoir was carried out,which includes many disciplines. such as geology,seismology,logging,petrophysics,reservoir modeling and hydrocarbon development.Based on the high resolu- tion imaging of high-precision 3-D seismic data,3-D multi-wave seismic data from digital three-component geophone,interwell seis- mic data and 3-D VSP data,two synthetic application techniques were proposed,including multi-data well-seismic joint reservoir in- version for providing the 3-D spatial detailed geophysical property model,and multi-scale data matching determinacy reservoir model- ing based on high-precision structural interpretation as well as res- ervoir interpretation.The technique was applied in Ken71 well area to predict residual oil,with good resuh achieved.Five re-shooting and changing-layer wells were implemented in terms of prediction result,and thirteen new wells were deployed.The drilling results almost coincide with prediction result and five percent of hydrocar- bon recovery can be increased based on estimation.
The integrated geophysics technique in reservoir is more and more important in the reservoir description of rolling exploration and development and in detailed geological modeling.Study on sin- gle geophysics technique has been carried out both at home and a- board to different degrees.However,the application research on integrated geophysics technique for predicting residual oil at the middle and later stage of development in old oilfield has been rarely reported.Therefore.the research on integrated geophysics tech- nique in reservoir was carried out,which includes many disciplines. such as geology,seismology,logging,petrophysics,reservoir modeling and hydrocarbon development.Based on the high resolu- tion imaging of high-precision 3-D seismic data,3-D multi-wave seismic data from digital three-component geophone,interwell seis- mic data and 3-D VSP data,two synthetic application techniques were proposed,including multi-data well-seismic joint reservoir in- version for providing the 3-D spatial detailed geophysical property model,and multi-scale data matching determinacy reservoir model- ing based on high-precision structural interpretation as well as res- ervoir interpretation.The technique was applied in Ken71 well area to predict residual oil,with good resuh achieved.Five re-shooting and changing-layer wells were implemented in terms of prediction result,and thirteen new wells were deployed.The drilling results almost coincide with prediction result and five percent of hydrocar- bon recovery can be increased based on estimation.
引文
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13 Barens L,Biver P.Pre-stack geostaticstical inversion used for reservoir characterization[R].Abu Dhabi: Abu Dhabi International Conference and Exhibition,2004
2李阳．储层流动单元模式及剩余油分布规律[J]．石油学报，2003，24(3)：52～55
3 Li Y,Zhang Z L.Exploration technology for complex sandstone reservoirs in the developed area of Shengli oilfield[J].Engineering Sciences,2003,1(2):267～274
4李阳．胜利油田油藏综合地球物理研究现状及展望[J]．石油勘探与开发，2004，31(3)：11～16
5宋玉龙，谭绍泉．胜利油田高精度地震勘探采集技术及应用实例[J]．石油物探，2004，43(4)：359～368
6郭树祥，李建明，毕立飞，等．频率域地表一致性反褶积方法及应用效果分析[J]．石油物探，2003，42(1)：97～101
7云美厚，丁伟．地震子波频率浅析[J]．石油物探，2005，44(6)：578～581
8郭建，王咸彬，胡中平，等．Q补偿技术在提高地震分辨率中的应用——以准噶尔盆地Y1井区为例[J]．石油物探，2007，46(5)：509～513
9王成礼，宋玉龙，牟风明，等．两步法预测反褶积在压制变周期鸣震中的应用[J]．石油物探，2007，46(1)：28～31
10王延光．储层地震反演方法以及应用中的关键问题与对策[J]．石油物探，2002，41(3)：299～303
11 Behrens R A,Tran T T.Incorporating seismic data of intermediate vertical resolution into 3-D reservoir mod- els:a new method[J].SPE Reservoir Evaluation & Engineering,1999,2(4):325～333
12贺维胜，夏吉庄，杨宏伟，等．三维高分辨率模型的建立及应用[J]，石油学报，2007，28(1)：58～60，66
13 Barens L,Biver P.Pre-stack geostaticstical inversion used for reservoir characterization[R].Abu Dhabi: Abu Dhabi International Conference and Exhibition,2004
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