基于地震驱动的海上油气田储层地质建模方法
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摘要
开发初期海上油气田钻井少,采用基于地质统计学的储层地质建模方法难以达到理想效果;但海上油气田地震数据较完整,因而有利于探索基于地震驱动的建模方法。通过地震数据体推演储层空间变化规律,再以井为条件求取空间估计参数,进而形成了基于地震驱动的海上油气田储层地质建模方法。应用结果表明,这种以地震数据为主体的建模方法有效利用了地质模式作为建模过程的约束,较好地克服了传统地质统计学的以井为核心且在井少时难以建立较为客观的储层地质模型的弊端,为海上油气田开发前期储层地质建模提供了一种更为客观和便捷的方法。
The geological modeling of reservoirs based on geostatistics can not be efficient for offshore fields in early development due to less drilled wells.However,there are quite abundant seismic data in such fields,favorable to probing into geological reservoir modeling based on seismic drive.The reservoir space changes were predicted from seismic data volumes,and the space estimate parameters were calculated at wells,then forming a method of geological reservoir modeling based on seismic drive for the offshore fields.Its applications have shown that this modeling predominated by seismic data volumes can efficiently make use of geological models as a constraint on a modeling process,and better avoid the shortconings of the traditional geostatistics such as taking a well as a core and difficulties of building a more objective geological reservoir model with fewer wells,therefore providing a more accurate and convenient method of geological reservoir modeling for offshore fields in early development.
The geological modeling of reservoirs based on geostatistics can not be efficient for offshore fields in early development due to less drilled wells.However,there are quite abundant seismic data in such fields,favorable to probing into geological reservoir modeling based on seismic drive.The reservoir space changes were predicted from seismic data volumes,and the space estimate parameters were calculated at wells,then forming a method of geological reservoir modeling based on seismic drive for the offshore fields.Its applications have shown that this modeling predominated by seismic data volumes can efficiently make use of geological models as a constraint on a modeling process,and better avoid the shortconings of the traditional geostatistics such as taking a well as a core and difficulties of building a more objective geological reservoir model with fewer wells,therefore providing a more accurate and convenient method of geological reservoir modeling for offshore fields in early development.
引文
[1]范廷恩,李维新,王志红,等.渤海渤中34区河流相储层预测与描述技术研究[J].中国海上油气,2006,18(1):14-15.
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[3]宋海渤.井-震联合描述储层性质空间变化的方法研究[D].东营:中国石油大学(华东),2008:26-28.
[4]邓运华.渤海油区稠油成因探讨[J].中国海上油气,2006,18(6):363-364.
[5]柴世超,杨庆红,葛丽珍,等.秦皇岛32-6稠油油田注水效果分析[J].中国海上油气,2006,18(4):251-252.
[6]张迎春,李廷礼.海上强底水驱油藏水平井合理开采速度研究[J].中国海上油气,2010,22(4):246-247.
[2]胡向阳,熊琦华,吴胜和.储层建模方法研究进展[J].石油大学学报:自然科学版,2001,25(1):107-112.
[3]宋海渤.井-震联合描述储层性质空间变化的方法研究[D].东营:中国石油大学(华东),2008:26-28.
[4]邓运华.渤海油区稠油成因探讨[J].中国海上油气,2006,18(6):363-364.
[5]柴世超,杨庆红,葛丽珍,等.秦皇岛32-6稠油油田注水效果分析[J].中国海上油气,2006,18(4):251-252.
[6]张迎春,李廷礼.海上强底水驱油藏水平井合理开采速度研究[J].中国海上油气,2010,22(4):246-247.
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