港东开发区曲流河道砂体内部构型研究
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摘要
以大港油田港东开发区港东二区四断块为例,针对储集层横向变化较大、砂体内部剩余油潜力不明的难题,综合运用测井、地震、沉积模式及动态信息,从单一河道入手,对二区四断块主力油藏进行单砂体刻画及内部构型研究,通过单井相分析,对点坝内水平井进行侧积泥岩夹层识别,分析侧积体的规模,勾画末期河道边界,重建地下地质模型,总结出末期(废弃)河道和侧积泥岩是影响该类油藏油气富集的主控因素并进行点坝内部构型分析,有助于开发井网部署的设计,提高产能建设。
Taking the fourth fault block of the second area inGangdong development zone as an example,according to the problems of large lateral variations of the reservoirs and the unknown residual oil potential within sand bodies,integrated the use of wireline logging,seismic,depositional model and dynamic information,setting from the single channel,the single sand body description and internal structure study were made for the dominant reservoirs in the fourth fault block of the second area.By single well phase analysis,the authors identified the side-accumulated mudstone interbeds of the horizontal wells within the dot dam,analyzed the scale of side-accumulated bodies,outlined the last channel boundary,reconstructed the underground geological model,summarized that the last(abandoned)channel and side-accumulated mudstone are the main controlling factors which have the impacts on oil and gas accumulation in such reservoirs and analyzed the structural types within dot dam that help design the development well grid pattern and increase the productivity construction.
Taking the fourth fault block of the second area inGangdong development zone as an example,according to the problems of large lateral variations of the reservoirs and the unknown residual oil potential within sand bodies,integrated the use of wireline logging,seismic,depositional model and dynamic information,setting from the single channel,the single sand body description and internal structure study were made for the dominant reservoirs in the fourth fault block of the second area.By single well phase analysis,the authors identified the side-accumulated mudstone interbeds of the horizontal wells within the dot dam,analyzed the scale of side-accumulated bodies,outlined the last channel boundary,reconstructed the underground geological model,summarized that the last(abandoned)channel and side-accumulated mudstone are the main controlling factors which have the impacts on oil and gas accumulation in such reservoirs and analyzed the structural types within dot dam that help design the development well grid pattern and increase the productivity construction.
引文
[1]周银邦,吴胜和,岳大力,等.点坝内部侧积层倾角控制因素分析及识别方法[J].中国石油大学学报(自然科学版),2009,33(2):7-11.
[2]翟志伟,施尚明,朱焕来,等.杏南开发区葡Ⅰ31小层废弃河道类型及其研究意义[J].吉林大学学报(地球科学版),2011,41(4):999-1005.
[3]闫百泉,马世忠,王龙,等.曲流点坝内部剩余油形成与分布规律物理模拟[J].地学前缘,2008,15(1):65-70.
[4]闫辛酉,石慧敏,周凤艳,等.滚动勘探开发技术在港北斜坡区地层岩性油气藏的应用[J].录井工程,2013,24(4):70-73.
[5]周银邦,吴胜和,计秉玉,等.曲流河储层构型表征研究进展[J].地球科学进展,2011,26(7):695-702.
[6]岳大力,吴胜和,刘建民.曲流河点坝地下储层构型精细解剖方法[J].石油学报,2007,28(4):99-103.
[7]窦松江,蔡明俊,陈金凤,等.地震属性分析在河道砂体内部构型研究中的应用[J].石油地质与工程,2009,23(5):46-49.
[8]周银邦,吴胜和,岳大力,等.萨北油田北二西区点坝内部侧积层定量表征[J].沉积与特提斯地质,2011,31(4):51-57.
[2]翟志伟,施尚明,朱焕来,等.杏南开发区葡Ⅰ31小层废弃河道类型及其研究意义[J].吉林大学学报(地球科学版),2011,41(4):999-1005.
[3]闫百泉,马世忠,王龙,等.曲流点坝内部剩余油形成与分布规律物理模拟[J].地学前缘,2008,15(1):65-70.
[4]闫辛酉,石慧敏,周凤艳,等.滚动勘探开发技术在港北斜坡区地层岩性油气藏的应用[J].录井工程,2013,24(4):70-73.
[5]周银邦,吴胜和,计秉玉,等.曲流河储层构型表征研究进展[J].地球科学进展,2011,26(7):695-702.
[6]岳大力,吴胜和,刘建民.曲流河点坝地下储层构型精细解剖方法[J].石油学报,2007,28(4):99-103.
[7]窦松江,蔡明俊,陈金凤,等.地震属性分析在河道砂体内部构型研究中的应用[J].石油地质与工程,2009,23(5):46-49.
[8]周银邦,吴胜和,岳大力,等.萨北油田北二西区点坝内部侧积层定量表征[J].沉积与特提斯地质,2011,31(4):51-57.
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