水平井资料在精细油藏建模中的应用
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摘要
东海平湖油气田八角亭构造H4b油藏具有储层薄、非均质性强的特点,且采用多分支水平井开发模式,加大了储层描述和油藏建模难度。以钻井和三维地震资料为基础,通过直井精细地层对比和叠前反演技术来预测储层展布特征,充分应用水平井钻进轨迹调整储层描述结果,将目标油藏作为单砂体—流动单元复合体进行地质建模,并利用水平井在砂体内钻进轨迹长、物性参数横向覆盖面广的优势,结合地震属性约束方法,最终建立了符合地质动、静态现状的精确模型。
The H4b reservoir of Bajiaoting structure in Pinghu oil and gas field is characterized by thin layers and strong heterogeneity,and it was developed by multi-branch horizontal wells,which makes reservoir description and reservoir modeling difficult.Based on well drilling and 3D seismic data,detailed stratigraphic correlation and pre-stack inversion techniques were applied to predict the reservoir distribution.The drilling trace of horizontal wells was fully used to adjust the reservoir description results,and the target reservoir is taken as single sand body or flow units for geological modeling.By taking the advantages of the long drilling trace of horizontal wells and wide horizontal cover of physical properties,combined with seismic attribute constraint,the model suitable for dynamic and static geology was finally established.
The H4b reservoir of Bajiaoting structure in Pinghu oil and gas field is characterized by thin layers and strong heterogeneity,and it was developed by multi-branch horizontal wells,which makes reservoir description and reservoir modeling difficult.Based on well drilling and 3D seismic data,detailed stratigraphic correlation and pre-stack inversion techniques were applied to predict the reservoir distribution.The drilling trace of horizontal wells was fully used to adjust the reservoir description results,and the target reservoir is taken as single sand body or flow units for geological modeling.By taking the advantages of the long drilling trace of horizontal wells and wide horizontal cover of physical properties,combined with seismic attribute constraint,the model suitable for dynamic and static geology was finally established.
引文
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[15]史玉成,陈明强,张审琴,等.低渗透气田单井控制储量计算的流动单元方法研究[J].岩性油气藏,2007,19(4):106-110.
[16]司丽.曲流河点坝砂体地质建模及在水平井轨迹设计中的应用[J].岩性油气藏,2008,20(3):104-108.
[2]常学军.复杂断块油藏水平井开发技术文集[M].北京:石油工业出版社,2008:6-85.
[3]胡文瑞.水平井油藏工程设计[M].北京:石油工业出版社,2008:5-20.
[4]王伟,张丽艳,李响.平湖油气田油气成藏新模式[J].海相油气地质,2011,16(1):51-55.
[5]袁志云,孔令洪,王成林.东海平湖油气田花港组储层地震预测研究[J].国外测井技术,2009,(1):14-16.
[6]王伟,张欣,崔晓朵,等.叠前反演追踪砂体技术的应用——以平湖油气田花港组为例[J].岩性油气藏,2010,22(增刊):69-73.
[7]周灿灿,王昌学.水平井测井解释技术综述[J].地球物理学进展,2006,21(1):152-160.
[8]郭肖,杜志敏.非均质性对水平井产能的影响[J].石油勘探与开发,2004,31(1):91-93.
[9]卫平生,潘建国,张虎权,等.地震储层学的概念、研究方法和关键技术[J].岩性油气藏,2010,22(2):1-6.
[10]孔祥宇,于继崇,李树峰.复杂断块老油田精细地层对比综合方法的提出与应用[J].岩性油气藏,2009,21(1):120-124.
[11]尹天放.油藏地球物理学方法在地质建模中的应用[J].石油勘探与开发,2000,27(5):61-62.
[12]Ouenes A,Zellou A M,Robinson G,et al.Seismically driven im-proved fractured reservoir characterization[C].SPE International Petroleum Conference:Mexico,2004.
[13]程林松,李春兰,郎兆新,等.分支水平井产能的研究[J].石油学报,1995,16(2):49-55.
[14]辛广柱,刘赫,彭建亮,等.地质因素和资料因素对地震属性的影响[J].岩性油气藏,2007,19(1):105-108.
[15]史玉成,陈明强,张审琴,等.低渗透气田单井控制储量计算的流动单元方法研究[J].岩性油气藏,2007,19(4):106-110.
[16]司丽.曲流河点坝砂体地质建模及在水平井轨迹设计中的应用[J].岩性油气藏,2008,20(3):104-108.
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