利用孔隙度遗传反演约束储层地质模型
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摘要
针对油田投产初期井距较大、井间储层发育状况难以预测的情况,应用遗传反演方法进行孔隙度反演。在地质建模过程中利用反演数据体约束孔隙度属性。以某油田东营组某小层为例进行地质建模。结果表明:应用遗传反演方法得到的孔隙度反演数据体可以在三维空间中较真实地反映出储层物性。利用孔隙度遗传反演数据体对对孔隙度模型进行约束的方法,相比传统地震约束方法,中间步骤少,准确性高,工作周期短,在实际工作中取得较好效果。
The case that when early in the oilfield production is discussed.The well spacing is larger,and its difficult to predict the status of interwell reservoir development,use genetic inversion method to make porosity inversion and use inversion data that in the process of geological medling to make the constraint effect of porosity properties.And certain oilfield in groups with a small layer for example is used,discussed the process of thinking,principles,methods and application effect.Examples show that,the porosity inversion data where from the genetic inversion algorithm can trueer reflect reservioer physical property and the known geological understanding.The method that use porosity genetic algorithm to make the constiaint of porosity modeling,compared with the traditional method of seismic constraint,intermediate steps are reduced.The accuracy is higher,the working cycle is shorter,it have achieved good effect in practical work.
The case that when early in the oilfield production is discussed.The well spacing is larger,and its difficult to predict the status of interwell reservoir development,use genetic inversion method to make porosity inversion and use inversion data that in the process of geological medling to make the constraint effect of porosity properties.And certain oilfield in groups with a small layer for example is used,discussed the process of thinking,principles,methods and application effect.Examples show that,the porosity inversion data where from the genetic inversion algorithm can trueer reflect reservioer physical property and the known geological understanding.The method that use porosity genetic algorithm to make the constiaint of porosity modeling,compared with the traditional method of seismic constraint,intermediate steps are reduced.The accuracy is higher,the working cycle is shorter,it have achieved good effect in practical work.
引文
1刘文岭.地震约束储层地质建模技术.石油学报,2008;29(1):64—74
2刘显太,昌峰,张世明.东海油气田A油藏跟踪研究及效果分析.西南石油学报,2003;25(2):15—18
3 Seifert D,Jensen J L.Using sequential indicator simulation as a tool inreservoir description:Issues and uncertainties.Mathematical Geology,1999;29(5):527—550
4周明辉.储层地质模型的建立及动态实时跟踪研究.东营:中国石油大学(华东),2009
5张伟,林承焰,周明辉,等.地质模型动态更新方法在关家堡油田的应用.石油勘探与开发,2010;37(2):220—225
6张英波.地震孔隙率反演方法和应用.石油地球物理勘探,1994;29(3):261—273
7任殿星,李凡华,李保柱.多条件约束油藏地质建模技术.石油勘探与开发,2008;35(2):205—214
8 Haldorsen H H,Damsleth E.Stochastic modeling.Journal of Petrole-um Geology,1990;42(4):404—412
9 Damsleth E,More H,Haldorsen H,et al.A two-stage sto-chasticmodel applied to North Seareservoir.Journal of Petroleum Geology,1992;44(4):402—408
10王晖.综合应用地震、地质和测井资料预测储层分布.中国海上油气(地质),2001;15(2):135—140
2刘显太,昌峰,张世明.东海油气田A油藏跟踪研究及效果分析.西南石油学报,2003;25(2):15—18
3 Seifert D,Jensen J L.Using sequential indicator simulation as a tool inreservoir description:Issues and uncertainties.Mathematical Geology,1999;29(5):527—550
4周明辉.储层地质模型的建立及动态实时跟踪研究.东营:中国石油大学(华东),2009
5张伟,林承焰,周明辉,等.地质模型动态更新方法在关家堡油田的应用.石油勘探与开发,2010;37(2):220—225
6张英波.地震孔隙率反演方法和应用.石油地球物理勘探,1994;29(3):261—273
7任殿星,李凡华,李保柱.多条件约束油藏地质建模技术.石油勘探与开发,2008;35(2):205—214
8 Haldorsen H H,Damsleth E.Stochastic modeling.Journal of Petrole-um Geology,1990;42(4):404—412
9 Damsleth E,More H,Haldorsen H,et al.A two-stage sto-chasticmodel applied to North Seareservoir.Journal of Petroleum Geology,1992;44(4):402—408
10王晖.综合应用地震、地质和测井资料预测储层分布.中国海上油气(地质),2001;15(2):135—140
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