三角洲平原水上分流河道砂体识别与刻画——以大牛地气田大47-大70井区山西组为例
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摘要
为精细刻画大牛地气田大47-大70井区山西组三角洲平原沉积砂体的时空分布关系,通过岩心、测井等资料对密井网区单河道砂体的垂向和平面标志进行识别,拟合砂体厚度与宽度的关系。在Petrel软件里以井点处砂厚值为依据,利用优质地震属性值作为趋势面控制,生成带有地震属性预测性质的砂厚图,从而对稀疏井网区砂体及沉积相平面分布特征提供指导。结果表明,单河道砂体垂向分界面的识别标志主要为泥质沉积间断和钙质沉积间断,平面识别标志主要包括河道间沉积、高程差异、侧向叠加和"厚-薄-厚";河道单砂体的厚度与宽度存在较好的指数关系;均方根振幅属性与井点处砂厚值相结合的方法能更好地反映砂体平面分布特征。可见单砂体的识别与刻画对目标区的砂体和沉积相分布研究具有重要意义。
In order to accurately describe the time-space distribution of sedimentary sand bodies in the delta plain of the Shanxi Formation in the Da 47-Da 70 well area of Daniudi gas field,the vertical and plane marks of the single channel sand body in the dense well area were identified and the relationship between thickness and width was analyzed by the core,logging and other data. Using high-quality seismic attribute values as trend surface controls and the thickness of each small layer sand at the well points to obtain the prediction properties with seismic attributes in petrel software. Therefore,it provided guidance for the distribution of sand bodies and sedimentary facies in sparse well area. The results show that the identification marks of the vertical interface of the single channel sand body are mainly argillaceous sedimentary discontinuities and calcareous sedimentary discontinuities. The plane identification marks mainly include inter-channel sedimentation,elevation difference,lateral superposition and " thickthin-thick". There is a good exponential relationship between the thickness and width of a single sand body. The method for combining root mean square amplitude property with sand thickness at well point can reflect the distribution characteristics of sand bodies. In summary,the identification and characterization of a single sand body is of great significance for the study of sand body and sedimentary facies distribution in the target area.
In order to accurately describe the time-space distribution of sedimentary sand bodies in the delta plain of the Shanxi Formation in the Da 47-Da 70 well area of Daniudi gas field,the vertical and plane marks of the single channel sand body in the dense well area were identified and the relationship between thickness and width was analyzed by the core,logging and other data. Using high-quality seismic attribute values as trend surface controls and the thickness of each small layer sand at the well points to obtain the prediction properties with seismic attributes in petrel software. Therefore,it provided guidance for the distribution of sand bodies and sedimentary facies in sparse well area. The results show that the identification marks of the vertical interface of the single channel sand body are mainly argillaceous sedimentary discontinuities and calcareous sedimentary discontinuities. The plane identification marks mainly include inter-channel sedimentation,elevation difference,lateral superposition and " thickthin-thick". There is a good exponential relationship between the thickness and width of a single sand body. The method for combining root mean square amplitude property with sand thickness at well point can reflect the distribution characteristics of sand bodies. In summary,the identification and characterization of a single sand body is of great significance for the study of sand body and sedimentary facies distribution in the target area.
引文
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12 封从军,鲍志东,单启铜,等.三角洲平原复合分流河道内部单砂体划分——以扶余油田中区南部泉头组四段为例[J].石油与天然气地质,2012,33(1):77-83Feng Congjun,Bao Zhidong,Shan Qitong,et al. Single sand body identification in compound distributary channel of delta plain:A case study from the fourth member of Quantou formation in the southern part of central Fuyu oilfield[J]. Oil&Gas Geology,2012,33(1):77-83
13 林博,戴俊生,陆先亮,等.孤岛油田中一区馆5段隔夹层划分与展布[J].西安石油大学学报(自然科学版),2006,21(4):11-14Lin Bo,Dai Junsheng,Lu Xianliang,et al. Division and distribution of the barrier beds and interbeds in Guantao-5 member of Zhongyi area,Gudao Oilfield[J]. Journal of Xi'an Shiyou University(Natural Science Edition),2006,21(4):11-14
14 林煜,吴胜和,岳大力,等.扇三角洲前缘储层构型精细解剖:以辽河油田曙2-6-6区块杜家台油层为例[J].天然气地球科学,2013,24(2):335-342Lin Yu,Wu Shenghe,Yue Dali,et al. Fine anatomizing reservoir architecture of fan-delta front:A case study on Dujiatai reservoir in Shu 2-6-6 block,Liaohe Oilfield[J]. Natural Gas Geoscience,2013,24(2):335-342
15 Leeder M R. Fluviatile fining upwards cycles and the magnitudeof paleochannels[J]. Geological Magazine,1973,110(3):265-276
16 夏世强,刘景彦,邓纪梅,等.井间河道砂体的井震结合法精细解剖刻画[J].西南石油大学学报(自然科学版),2013,35(4):59-68Xia Shiqiang,Liu Jingyan,Deng Jimei,et al. River channel sand body prediction by integrating well log and seismic attributes analysis in dense well pattern[J]. Journal of Southwest Petroleum University(Science&Technology Edition),2013,35(4):59-68
2 邓旭波.准噶尔盆地中部1区块J1s2储层非均质隔夹层特征[J].科学技术与工程,2016,16(14):27-31Deng Xubo. Reservoir interlayer features of section J1s2in block Zhong 1 of Junggar Basin[J]. Science Technology and Engineering,2016,16(14):27-31
3 潘志超,马世忠.低渗透油层单砂体建筑结构研究及剩余油挖潜[J].科学技术与工程,2011,11(22):5403-5406Pan Zhichao,Ma Shizhong. A study on internal architecture of single sand body in low permeability oil layer and remaining oil tapping[J].Science Technology and Engineering,2011,11(22):5403-5406
4 陈婷婷,胡望水,李相明,等.从密井网区到探评井区沉积微相平面图的编制[J].断块油气田,2014,21(5):545-549Chen Tingting,Hu Wangshui,Li Xiangming,et al. Drawing of sedimentary microfacies plane map from dense pattern to exploration assessment well areas[J]. Fault-Block Oil&Gas Field,2014,21(5):545-549
5 任双坡,姚光庆,毛文静.三角洲前缘水下分流河道薄层单砂体成因类型及其叠置模式——以古城油田泌浅10区核三段Ⅳ-Ⅵ油组为例[J].沉积学报,2016,34(3):582-593Ren Shuangpo,Yao Guangqing,Mao Wenjing. Genetic types and superimposition patterns of subaqueous distributary channel thin sandbodies in delta front:A case study from theⅣ-Ⅵreservoir groups of H3 in Biqian 10 area of Gucheng oilfield[J]. Acta Sedimentologica Sinica,2016,34(3):582-593
6 李志鹏,林承焰,董波,等.河控三角洲水下分流河道砂体内部建筑结构模式[J].石油学报,2012,33(1):101-105Li Zhipeng,Lin Chengyan,Dong Bo,et al. An internal structure model of subaqueous distributary channel sands of the fluvial-dominated delta[J]. Acta Petrolei Sinica,2012,33(1):101-105
7 施尚明,马艳平,王雷,等.曲流河复合砂体内单一河道的识别方法[J].科学技术与工程,2011,11(3):471-475Shi Shangming,Ma Yanping,Wang Lei,et al. The identification of single channel in composite sand body of meandering stream[J]. Science Technology and Engineering,2011,11(3):471-475
8 孙友海.萨北二西二类油层精细沉积微相、非均质性及剩余油研究[D].大庆:东北石油大学,2011Sun Youhai. The fine sedimentary microfacies,heterogeneity and remaining oil research in the second type reservoirs of North-Two-West[D]. Daqing:Northeast Petroleum University,2011
9 胡秋媛,车雄伟,谢伟,等.东辛油田辛23断块区沙二段沉积微相与剩余油分布[J].科学技术与工程,2017,17(26):208-214Hu Qiuyuan,Che Xiongwei,Xie Wei,et al. Sedimentary microfacies and remaining oil distribution of Es2member in Xin23 fault block,Dongxin Oilfield[J]. Science Technology and Engineering,2017,17(26):208-214
10 刘忠群,胡杨.大牛地气田山西组山1段储层孔隙结构特征[J].断块油气田,2008,5(15):37-39Liu Zhongqun,Hu Yang. Pore structure features of the first member reservoir of Shanxi formation in Daniudi gas field[J]. Fault-Block Oil&Gas Field,2008,5(15):37-39
11 刘栋,过敏,王君泽,等.大牛地气田盒1段致密气特征及评价新方法[J].科学技术与工程,2015,15(13):41-51,62Liu Dong,Guo Min,Wang Junze,et al. Tight gas reservoir characteristics and comprehensive evaluation of H1 member in Daniudi gas field[J]. Science Technology and Engineering,2015,15(13):41-51,62
12 封从军,鲍志东,单启铜,等.三角洲平原复合分流河道内部单砂体划分——以扶余油田中区南部泉头组四段为例[J].石油与天然气地质,2012,33(1):77-83Feng Congjun,Bao Zhidong,Shan Qitong,et al. Single sand body identification in compound distributary channel of delta plain:A case study from the fourth member of Quantou formation in the southern part of central Fuyu oilfield[J]. Oil&Gas Geology,2012,33(1):77-83
13 林博,戴俊生,陆先亮,等.孤岛油田中一区馆5段隔夹层划分与展布[J].西安石油大学学报(自然科学版),2006,21(4):11-14Lin Bo,Dai Junsheng,Lu Xianliang,et al. Division and distribution of the barrier beds and interbeds in Guantao-5 member of Zhongyi area,Gudao Oilfield[J]. Journal of Xi'an Shiyou University(Natural Science Edition),2006,21(4):11-14
14 林煜,吴胜和,岳大力,等.扇三角洲前缘储层构型精细解剖:以辽河油田曙2-6-6区块杜家台油层为例[J].天然气地球科学,2013,24(2):335-342Lin Yu,Wu Shenghe,Yue Dali,et al. Fine anatomizing reservoir architecture of fan-delta front:A case study on Dujiatai reservoir in Shu 2-6-6 block,Liaohe Oilfield[J]. Natural Gas Geoscience,2013,24(2):335-342
15 Leeder M R. Fluviatile fining upwards cycles and the magnitudeof paleochannels[J]. Geological Magazine,1973,110(3):265-276
16 夏世强,刘景彦,邓纪梅,等.井间河道砂体的井震结合法精细解剖刻画[J].西南石油大学学报(自然科学版),2013,35(4):59-68Xia Shiqiang,Liu Jingyan,Deng Jimei,et al. River channel sand body prediction by integrating well log and seismic attributes analysis in dense well pattern[J]. Journal of Southwest Petroleum University(Science&Technology Edition),2013,35(4):59-68