渤海X油田岩性勘探中河道刻画及连通性分析
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摘要
认清单一河道的分布及河道组合关系对于河流相沉积发育地区的油气勘探、开发井网部署和剩余油挖潜都十分重要。明化镇组是渤海海域油气勘探的重要目的层系,由于河流相沉积非常发育,多期河道相互切割叠置使砂体识别、刻画和连通性分析十分困难。以浅层河道砂体较为发育的渤海X油田为例,建立了一套适合河道边界刻画追踪的高精度相干体切片技术,得到高精度相干体切片,精细刻画出河道展布,同时通过子波分解、负二阶导数技术判别同时期砂体结合部位的连通性,并利用正演模拟印证河道结合部位存在不连通的可能性。经钻井证实研究结论可靠,为研究区勘探井位部署和开发方案编制提供了重要的参考依据。
Recognizing the distribution of a single channel and the relationship between channels is quite important for hydrocarbon exploration,development of well pattern deployment and tapping the potential of remaining oil in river facies development area. The Minghuazhen formation is an important target layer of hydrocarbon exploration in the Bohai sea area,and the multi-period channel cut and superimposition make it difficult to identify, characterize and analyze the sand-body due to highly developed fluvial sedimentary facies. Taking the Bohai oilfield X with relatively developed sandstone in shallow channel as an example,a set of high-precision coherence slicing techniques for characterizing and tracing of river channels are established,getting the high-precision coherent slices and finely describing the channel distribution. Meanwhile,the connectivity of combining parts of the sandstone in the same period was determined by wavelet decomposition and negative second derivative technology,and the possibility of the disconnectivity of the combining parts of sandstone by forward modeling was confirmed. It is proved that the conclusion is reliable by drilling and provides important reference for the exploration well deploying and development program preparation in research area.
Recognizing the distribution of a single channel and the relationship between channels is quite important for hydrocarbon exploration,development of well pattern deployment and tapping the potential of remaining oil in river facies development area. The Minghuazhen formation is an important target layer of hydrocarbon exploration in the Bohai sea area,and the multi-period channel cut and superimposition make it difficult to identify, characterize and analyze the sand-body due to highly developed fluvial sedimentary facies. Taking the Bohai oilfield X with relatively developed sandstone in shallow channel as an example,a set of high-precision coherence slicing techniques for characterizing and tracing of river channels are established,getting the high-precision coherent slices and finely describing the channel distribution. Meanwhile,the connectivity of combining parts of the sandstone in the same period was determined by wavelet decomposition and negative second derivative technology,and the possibility of the disconnectivity of the combining parts of sandstone by forward modeling was confirmed. It is proved that the conclusion is reliable by drilling and provides important reference for the exploration well deploying and development program preparation in research area.
引文
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[17]麻旭刚,陈华靖,李才,等.浅层复杂断块区相干体制作方法——以渤中23构造区为例[J].世界地质,2015,34(4):1024-1030.Ma Xugang,Chen Huajing,Li Cai,et al.Making Process of Coherence Cube in Shallow Complex Fault Blocks:A Case in Bozhong 23 Tectonic Region[J].Global Geology,2015,34(4):1024-1030.
[18]陈人杰,童思友,刘怀山,等.基于子波分解与重构的储层预测技术[J].海洋地质前沿,2014,30(1):55-61.Chen Renjie,Tong Siyou,Liu Huaishan,et al.Reservoir Prediction Technology Based on Wavelet Decomposition and Reconstruction[J].Marine Geology Frontiers,2014,30(1):55-61.
[19]徐天吉,沈忠民,文雪康.多子波分解与重构技术应用研究[J].成都理工大学学报:自然科学版,2010,37(6):660-665.Xu Tianji,Shen Zhongmin,Wen Xuekang.Research and Application of Multi-wavelet Decomposition and Reconstruction Technology[J].Journal of Chengdu University of Technology:Science&Technology Edition,2010,37(6):660-665.
[20]张彬彬,张在金,傅金荣,等.利用地震数据高频成分恢复低频信息[C]//中国地球物理学会.中国地球科学联合学术年会论文集.北京:中国地球物理学会,2014:13-14.Zhang Binbin,Zhang Zaijin,Fu Jinrong,et al.Using High Frequency Components of Seismic Data to Recover Low Frequency Information[C]//Chinese Geophysical Society.Proceedings of the Annual Meeting of China Earth Sciences Association.Beingjing:Chinese Geophysical Society,2014:13-14.
[2]刘汝敏,罗智,王震,等.复合砂体内单一河道的识别方法[J].石油天然气学报,2010,32(3):214-219.Liu Rumin,Luo Zhi,Wang Zhen,et al.Sandbody Identification in Single Channels of Muiti-sandbodies[J].Journal of Oil and Gas Technology,2010,32(3):214-219.
[3]张会卿.含油砂体刻画技术在复杂断块油藏开发中的应用[J].油气地球物理,2016,14(1):32-35.Zhang Huiqing.Application of Oil-bearing sand body Characterization Technology in Complex Fault Block Reservoir Development[J].Petroleum Geophysics,2016,14(1):32-35.
[4]刘炬,齐颖.地震砂体刻画技术在鄂尔多斯盆地宁东26井区储层预测中的应用[J].海洋地质前沿,2016,32(6):64-70.Liu Ju,Qi Ying.Application of Seismic Sand Depiction Technique in Ningdong 26 Area of Ordos Basin[J].Marine Geological Frontiers,2016,32(6):64-70.
[5]马世忠,何伟,王昭.基于地震分频技术的河道砂体精细刻画[J].黑龙江科技大学学报,2015,25(4):411-416.Ma Shizhong,He Wei,Wang Zhao.Fine Characterization of Channel Sand Body Based on Seismic Frequency Dividing Technique[J].Journal of Heilongjiang University of Science and Technology,2015,25(4):411-416.
[6]张义,尹艳树.约束稀疏脉冲反演在杜坡油田核三段中的应用[J].岩性油气藏,2015,27(3):103-107.Zhang Yi,Yin Yanshu.Application of Constrained Sparse Spike Inversion in the Third Member of Hetaoyuan Formation in Dupo Oilfield[J].Lithologic Reservoirs,2015,27(3):103-107.
[7]刘洪林,张秀丽,王彦辉,等.Inver Mod反演技术在砂体预测中的应用[J].大庆石油学院学报,2007,31(2):15-17.Liu Honglin,Zhang Xiuli,Wang Ya Nghui,et al.Application of Inver Mod Inversion in the Prediction of Sandstone[J].Journal of Daqing Petroleum Institue,2007,31(2):15-17.
[8]郭得海,李谋杰.三维多属性体显示融合技术在储层地震预测中的应用[J].石油天然气学报,2015,37(9+10):22-25.Guo Dehai,Li Moujie.Application of 3D Multi-attribute Volume Display Fusion Technique in the Prediction Reservoir Seismic[J].Journal of Oil and Gas Technology,2015,37(9+10):22-25.
[9]刘传奇,吕丁友,侯冬梅.渤海A油田砂体连通性研究[J].石油物探,2008,47(3):251-255.Liu Chuanqi,Lv Dingyou,Hou Dongmei.Study of Connectivity of Sand Bodies in Oilfield A,Bohai Area[J].Geophysical Prospecting for Petroleum,2008,47(3):251-255.
[10]肖佃师,张飞飞,卢双舫,等.井震联合识别复合砂体中单一河道——以朝44区块扶余油层为例[J].石油地球物理勘探,2016,51(1):148-157.Xiao Dianshi,Zhang Feifei,Lu Shuangfang,et al.Single Channel Identification in Compound Sand Bodies by Well and Seismic Data Integration:An Example in Area of Chao44 Region,Fuyu Oilfield[J].Oil Geophysical Prospecting,2016,51(1):148-157.
[11]张京思,揣媛媛,边立恩.正演模拟技术在渤海油田X井区砂体连通性研究中的应用[J].岩性油气藏,2016,28(3):127-132.Zhang Jingsi,Chuai Yuanyuan,Bian Lien.Application of Forward Modeling to Study of Sand Body Connectivity in X Well Field of Bohai Oilfield[J].Lithologic Reservoirs,2016,28(3):127-132.
[12]庞宏磊,阎昭岷,张营革,等.子波分解重构技术在义东地区砂砾岩体描述中的应用[J].油气地球物理,2016,14(2):9-13.Pang Honglei,Yan Zhaomin,Zhang Yingge,et al.Application of the Wavelet Decomposition Reconstruction in the Description of Gravel Rock Mass in Yidong area[J].Petroleum Geophysics,2016,14(2):9-13.
[13]向龙斌,李东安.基于多子波分解和旋回分析法去火成岩地震反射屏蔽[J].地质科技情报,2016,35(3):210-215.Xiang Longbin,Li Dong'an.Eliminating Seismic Shielding of Igneous Rock Using Wavelet Decomposition and Seismic Cycle Analysis[J].Geological Science and Technology Information,2016,35(3):210-215.
[14]张木森,林承焰,许红,等.多尺度子波分解技术在地震解释中的应用[J].海洋地质前沿,2016,35(3):73-78.Zhang Musen,Lin Chengyan,Xu Hong,et al.The Application of Multi-scale Wavelet Decomposition Technique in Seismic Interpretation[J].Marine Geology Frontiers,2016,32(3):73-78.
[15]王大伟,刘震,陈小宏,等.地震相干技术的进展及其在油气勘探中的应用[J].地质科技情报,2005,24(2):71-76.Wang Dawei,Liu Zhen,Chen Xiaohong,et al.Progress of Seismic Coherence and Its Application to Petroleum Exploration[J].Geological Science and Technology Information,2005,24(2):71-76.
[16]杨春生.井震结合内前缘亚相窄小河道砂体刻画方法研究[J].长江大学学报,2015,12(26):15-18.Yang Chunsheng.Study of Sand Body Characterization Technology in Well Seismic Combination Leading Edge Subfacies Narrow Channel[J].Journal of Yangtze University,2015,12(26):15-18.
[17]麻旭刚,陈华靖,李才,等.浅层复杂断块区相干体制作方法——以渤中23构造区为例[J].世界地质,2015,34(4):1024-1030.Ma Xugang,Chen Huajing,Li Cai,et al.Making Process of Coherence Cube in Shallow Complex Fault Blocks:A Case in Bozhong 23 Tectonic Region[J].Global Geology,2015,34(4):1024-1030.
[18]陈人杰,童思友,刘怀山,等.基于子波分解与重构的储层预测技术[J].海洋地质前沿,2014,30(1):55-61.Chen Renjie,Tong Siyou,Liu Huaishan,et al.Reservoir Prediction Technology Based on Wavelet Decomposition and Reconstruction[J].Marine Geology Frontiers,2014,30(1):55-61.
[19]徐天吉,沈忠民,文雪康.多子波分解与重构技术应用研究[J].成都理工大学学报:自然科学版,2010,37(6):660-665.Xu Tianji,Shen Zhongmin,Wen Xuekang.Research and Application of Multi-wavelet Decomposition and Reconstruction Technology[J].Journal of Chengdu University of Technology:Science&Technology Edition,2010,37(6):660-665.
[20]张彬彬,张在金,傅金荣,等.利用地震数据高频成分恢复低频信息[C]//中国地球物理学会.中国地球科学联合学术年会论文集.北京:中国地球物理学会,2014:13-14.Zhang Binbin,Zhang Zaijin,Fu Jinrong,et al.Using High Frequency Components of Seismic Data to Recover Low Frequency Information[C]//Chinese Geophysical Society.Proceedings of the Annual Meeting of China Earth Sciences Association.Beingjing:Chinese Geophysical Society,2014:13-14.