海上特稠油油田复杂油水界面模型定量表征
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摘要
针对海上特稠油油田复杂油水界面在地质建模及数值模拟过程中的表征,提出一种非平衡输入建立饱和度场的等效方法。该方法通过油水界面三维分布模拟、油水分区属性场构建及含水饱和度模拟等构建准确表征复杂油水分布特征的含水饱和度场,利用该含水饱和度场替代油水界面,实现地质模型中储量拟合及油藏数值模拟模型中复杂油水界面的定义。在渤海LD油田,利用该方法解决了地质建模及数值模拟过程中复杂油水界面表征难题,为油田开发方案研究奠定了模型基础,同时也可为其他类似油田研究提供借鉴。
A method to better identify the complicated oil/water interface in geological modeling and reservoir numerical simulation is proposed in this paper for extremely heavy oil.Via the simulation of3 ddistribution of oil/water interface,the construction of oil/water partition property field and the simulation of water saturation,a final water saturation model is constructed,which can accurately define the complicated oil and water distribution pattern.The definition of complex oil/water interface in reserve fitting and reservoir numerical simulation may be realized by using the final water saturation model instead of oil/water interface.In the LD oil field,the complex problem of oil/water interface presentation was solved by using the method in geological modeling and numerical simulation for oilfield development planning.It can also provide a reference for other similar oilfields.
A method to better identify the complicated oil/water interface in geological modeling and reservoir numerical simulation is proposed in this paper for extremely heavy oil.Via the simulation of3 ddistribution of oil/water interface,the construction of oil/water partition property field and the simulation of water saturation,a final water saturation model is constructed,which can accurately define the complicated oil and water distribution pattern.The definition of complex oil/water interface in reserve fitting and reservoir numerical simulation may be realized by using the final water saturation model instead of oil/water interface.In the LD oil field,the complex problem of oil/water interface presentation was solved by using the method in geological modeling and numerical simulation for oilfield development planning.It can also provide a reference for other similar oilfields.
引文
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[15]叶小明,王鹏飞,霍春亮,等.海上复杂碎屑岩储层油气藏地质建模关键技术[J].中国海上油气,2018,30(3):110-115.
[2]刘超,赵春明,廖新武,等.海上油田大井距条件下曲流河储层内部构型精细解剖及应用分析[J].中国海上油气,2014,26(1):58-64.
[3]李浩,聂玲玲,张彩旗,等.渤海湾盆地A稠油油田M层油水界面主控因素[J].新疆石油地质,2017(4):455-459.
[4]徐长贵,王冰洁,王飞龙,等.辽东湾坳陷新近系特稠油成藏模式与成藏过程---以旅大5-2北油田为例[J].石油学报,2016,37(5):599-609.
[5]许宏龙,刘建,龚刘凭,等.双河油田438块构造油藏油水界面差异分布的主导因素[J].海洋地质前沿,2015,31(7):42-46.
[6]李传亮.油水界面倾斜原因分析[J].新疆石油地质,2006,27(4):498-499.
[7]林景晔,童英,王新江.大庆长垣砂岩储层构造油藏油水界面控制因素研究[J].中国石油勘探,2007,12(3):13-16.
[8]时佃海.油水界面倾角与储集层物性变化关系分析[J].新疆石油地质,2006,27(3):322-323.
[9]严科,赵红兵.断背斜油藏油水界面的差异分布及成因探讨[J].西南石油大学学报:自然科学版,2013,35(1):28-34.
[10]郭永华,周心怀,李建平,等.渤海海域新近系稠油油藏原油特征及形成机制[J].石油与天然气地质,2010,31(3):375-385.
[11]尚希涛,邢庆河.利用地层压力测试资料识别自由水面的方法[J].断块油气田,2012,19(5):674-677.
[12]霍春亮,叶小明,高振南,等.储层内部小尺度构型单元界面等效表征方法[J].中国海上油气,2016,28(1):54-59.
[13]叶小明,霍春亮,王鹏飞,等.井震静动四位一体储层建模方法[J].油气藏评价与开发,2017,7(4):1-5.
[14]赵永军,舒晓,胡勇,等.一种复杂曲流带储层三维构型建模新方法[J].中国石油大学学报:自然科学版,2015,39(1):1-7.
[15]叶小明,王鹏飞,霍春亮,等.海上复杂碎屑岩储层油气藏地质建模关键技术[J].中国海上油气,2018,30(3):110-115.