应用注采井动态相关性验证三维地震解释成果
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摘要
三维地震解释成果虽然比二维地震精度有很大提高,但是受人员和设备等多方面因素影响,对于小尺度地质微构造解释仍然存在一定程度误差。如何科学验证三维地震解释成果,使其有效地应用到油田开发实践中,是急需攻克的现实课题。以萨中油田开发地震资料处理解释相对完善的北一区断东开发区块为例,在三维地震解释基础上,对于新发现认识的小断层、小褶曲等微构造,系统地应用水聚两驱井注采动态相关性分析法加以交叉验证,分析判断其存在的确定性,进而部署油水井综合调整措施挖掘剩余油,同时类比了脉冲试井、示踪剂测井等验证方法。此方法具有实用性、经济性、可靠性,可在萨中开发区其他区块以及老区精细地震勘探类似油田推广应用。
Although 3D seismic interpreted results are characterized by much higher precision than those of 2D,influenced by multiple factors such as interpreter,equipments and so on,there are a certain errors for the microstructural interpretation of small-size geological bodies.How to scientifically verify the results and effectively apply them in the practice of oilfield development have been the actual subjects faced at present.Taking the development block in East Fault of Block North 1 with relative perfect process and interpretation of the production seismic data in Sazhong Oilfield,on the basis of 3D seismic interpretation,the newly-discovered and recognized microstructures such as small faults,little fold and so forth are systematically cross-verified by the dynamic analyzing methods of both water and polymer floodings' injection-production coherencies,and then the existing certainty of the structures is identified,thus the comprehensive adjusting measures are taken for arranging oil and water wells and tapping the residual oil.At the same time,the analogy method is applied to check the verifying methods such as pulse testing,tracer logging and so forth.The coherency verifying method is characterized by suitability/adaptability,economic feasibility and reliability,so it can generalized and applied in the other blocks and those similar oilfields which the fine seismic exploration is needed for the mature developed blocks.
Although 3D seismic interpreted results are characterized by much higher precision than those of 2D,influenced by multiple factors such as interpreter,equipments and so on,there are a certain errors for the microstructural interpretation of small-size geological bodies.How to scientifically verify the results and effectively apply them in the practice of oilfield development have been the actual subjects faced at present.Taking the development block in East Fault of Block North 1 with relative perfect process and interpretation of the production seismic data in Sazhong Oilfield,on the basis of 3D seismic interpretation,the newly-discovered and recognized microstructures such as small faults,little fold and so forth are systematically cross-verified by the dynamic analyzing methods of both water and polymer floodings' injection-production coherencies,and then the existing certainty of the structures is identified,thus the comprehensive adjusting measures are taken for arranging oil and water wells and tapping the residual oil.At the same time,the analogy method is applied to check the verifying methods such as pulse testing,tracer logging and so forth.The coherency verifying method is characterized by suitability/adaptability,economic feasibility and reliability,so it can generalized and applied in the other blocks and those similar oilfields which the fine seismic exploration is needed for the mature developed blocks.
引文
[1]王渝明,王加滢,康红庆,等.聚合物驱分类评价方法的建立与应用[J].大庆石油地质与开发,2012,31(3):130-133.
[2]佟胜强.二类油层聚合物驱压裂时机的确定[J].大庆石油地质与开发,2011,30(4):131-134.
[3]卢祥国,张云宝.聚合物驱提高采收率方法及其机理研究[J].大庆石油地质与开发,2007,26(6):113-117.
[4]邵振波,李洁.大庆油田二类油层注聚对象的确定及层系组合研究[J].大庆石油地质与开发,2004,23(1):52-55.
[5]金辉.不同注入方式对复合驱油效率影响[J].内蒙古石油化工,2007,22(3):233-234.
[6]张元玉,宫长路,吴晓慧,等.喇萨杏油田控水效果及含水变化趋势预测[J].大庆石油地质与开发,2010,29(1):51-53.
[7]钟仪华.特高含水油田常规开发动态指标预测方法分析[J].大庆石油地质与开发,2009,28(3):55-59.
[8]程杰成.“十五”期间大庆油田三次采油技术的进步与下步攻关方向[J].大庆石油地质与开发,2006,25(1):18-22.
[9]李小冯,骆铭,路宗满,等.油井压裂潜力预测方法研究[J].大庆石油地质与开发,2008,27(4):64-66.
[10]Economides M J.油气增产措施[M].北京:石油工业出版社,2008.
[11]Gadallah M R.储层地震学[M].北京:石油工业出版社,2008.
[12]黄延忠.水驱注聚封堵全过程开发调整及综合挖潜方法研究[J],大庆石油地质与开发,2010,29(4):69-72.
[13]齐春燕,王贺军.喇萨杏油田层系井网现状及调整对策[J].大庆石油地质与开发,2010,29(1):38-42.
[2]佟胜强.二类油层聚合物驱压裂时机的确定[J].大庆石油地质与开发,2011,30(4):131-134.
[3]卢祥国,张云宝.聚合物驱提高采收率方法及其机理研究[J].大庆石油地质与开发,2007,26(6):113-117.
[4]邵振波,李洁.大庆油田二类油层注聚对象的确定及层系组合研究[J].大庆石油地质与开发,2004,23(1):52-55.
[5]金辉.不同注入方式对复合驱油效率影响[J].内蒙古石油化工,2007,22(3):233-234.
[6]张元玉,宫长路,吴晓慧,等.喇萨杏油田控水效果及含水变化趋势预测[J].大庆石油地质与开发,2010,29(1):51-53.
[7]钟仪华.特高含水油田常规开发动态指标预测方法分析[J].大庆石油地质与开发,2009,28(3):55-59.
[8]程杰成.“十五”期间大庆油田三次采油技术的进步与下步攻关方向[J].大庆石油地质与开发,2006,25(1):18-22.
[9]李小冯,骆铭,路宗满,等.油井压裂潜力预测方法研究[J].大庆石油地质与开发,2008,27(4):64-66.
[10]Economides M J.油气增产措施[M].北京:石油工业出版社,2008.
[11]Gadallah M R.储层地震学[M].北京:石油工业出版社,2008.
[12]黄延忠.水驱注聚封堵全过程开发调整及综合挖潜方法研究[J],大庆石油地质与开发,2010,29(4):69-72.
[13]齐春燕,王贺军.喇萨杏油田层系井网现状及调整对策[J].大庆石油地质与开发,2010,29(1):38-42.