车镇凹陷北部陡坡带砂砾岩体识别与储层物性预测
|
摘要
车镇凹陷陡坡带沙三段砂砾岩扇体发育,但目前对砂砾岩体横向展布范围及砂砾岩体边界的划分尚不清楚,储层物性难以预测。首先,利用相干分析技术开展砂砾岩扇体沉积相的划分,明确了扇体的展布规律、分布范围、划清了砂砾岩扇体的边界。然后,利用声波、速度谱等资料探讨了沙三下亚段(Es3x)地层压力情况,认为Es3x存在欠压实超压带,车镇凹陷欠压实超压带的发现为寻找沙三段砂砾岩扇体储层物性良好发育区指明了方向。最后,利用地震高频能量衰减检测技术对储层物性进行了预测。通过地震高频能量衰减梯度法预测的储层物性良好发育区,位于研究区欠压实超压区带内,用地震能量高频波段的衰减特征不但可预测不同井位的储层物性,还可根据连井衰减梯度剖面的变化规律预测地震高频波段高衰减区的延伸范围。高频能量衰减梯度法预测的储层物性良好发育区带与实钻结果吻合度好。
Sand-gravel body of Es3x in the northern steep slope of Chezhen sag are well developed,but their spreading range and boundary are not obvious,and the distribution of effective reservoirs are not affirmative either.Due to above conditions of the research area,the authors first block out the sediment facies of the sand-gravel fan by using coherent analysis technique and affirm the spreading range and boundary of the sand-gravel fan.Then they discuss the Es3x pressure of the research area by using sound wave data and velocity spectrum data,believing there exists under-compaction hyper-pressure zone in Es3x in the research zone.At last the authors forecast the petroleum-bearing feature of the sand-gravel body by using techniques of attenuation gradient of seismic energy.The favorable petroleum-bearing zone forecasted by techniques of attenuation gradient of seismic energy is located in under-compaction hyper-pressure zone.Techniques of attenuation gradient of seismic energy not only forecast the petroleum-bearing feature of the well,but can be used as step-out evidence of the oil field.The conformity of petroleum-bearing feature between the results forecasted by techniques of attenuation gradient of seismic energy and by the drilling results is good.
Sand-gravel body of Es3x in the northern steep slope of Chezhen sag are well developed,but their spreading range and boundary are not obvious,and the distribution of effective reservoirs are not affirmative either.Due to above conditions of the research area,the authors first block out the sediment facies of the sand-gravel fan by using coherent analysis technique and affirm the spreading range and boundary of the sand-gravel fan.Then they discuss the Es3x pressure of the research area by using sound wave data and velocity spectrum data,believing there exists under-compaction hyper-pressure zone in Es3x in the research zone.At last the authors forecast the petroleum-bearing feature of the sand-gravel body by using techniques of attenuation gradient of seismic energy.The favorable petroleum-bearing zone forecasted by techniques of attenuation gradient of seismic energy is located in under-compaction hyper-pressure zone.Techniques of attenuation gradient of seismic energy not only forecast the petroleum-bearing feature of the well,but can be used as step-out evidence of the oil field.The conformity of petroleum-bearing feature between the results forecasted by techniques of attenuation gradient of seismic energy and by the drilling results is good.
引文
[1]王蛟,姜在兴,陈世悦,等.渤海湾盆地车镇凹陷沙三—沙一段沉积演化与有利砂体预测[J].石油实验地质,2005,27(4):371-377.[WANG Jiao,JIANG Zai-xing,CHEN Shi-yue,et al.Sedimentaryfaces evolution andfavorable sandstone body prospec-tionin the third to first members of Shahejie Formation of Paleo-gene in the Chezhen Sag of the Bohai wan Basin[J].Petroleum Ge-ology&Experiment,2005,27(4):371-377.]
[2]周廷全,鲜本忠,林会喜,等.车镇凹陷陡坡带古近系湖底扇沉积规律及储层特征[J].油气地质与采收率,2007,14(2):23-29.[ZHOU Ting-quan,XI AN Ben-zhong,LI N Hui-xi,et al.Sedimentary rules and reservoir characteristics of sub-lacustrine fanin Paleogene in steep of Chenzhen Sag[J].Petro-leum Geology and Recovery,2007,14(2):23-29.]
[3]李洪香,任继红,马建英.异常高孔隙流体压力与碎屑岩深部油气藏[J].石油勘探与开发,2001,28(5):5-11.[LI Hong-xiang,RENJi-hong,MAJian-ying,et al.Abnormal high pore fluid pressure and deep oil and gas pools of clastic rocks[J].Pe-troleum Exploration and Development,2001,28(5):5-11.]
[4]张先平,张树林,陈海红,等.东海西湖凹陷平湖构造带异常压力与油气成藏[J].海洋地质与第四纪地质,2007,27(3):93-97.[ZHANG Xian-ping,ZHANG Shu-lin,CHEN Hai-hong,et al.Abnormal pressure and related reservoir formation in the Pinghu Structural Belts of Xihu Depression,East China Sea[J].Marine Geology and Quaternary Geology,2007,27(3):93-97.]
[5]金业权,王越之,李自俊.地震资料预测地层孔隙压力应基于欠压实成因[J].石油钻探技术,2000,28(3):7-9.[JI N Ye-quan,WANG Yue-zhi,LI Zi-jun.Undercompaction causes for using seismic data to predict formation pore pressure[J].Petro-leum Drilling Techniques,2000,28(3):7-9.]
[6]李胜利,于兴河,陈建阳,等.渤海湾盆地济阳坳陷沾化凹陷地层流体压力分布规律及其对油气成藏的影响[J].地质力学学报,2006,12(1):37-42.[LI Sheng-li,YU Xing-he,CHENJian-yang.Distributing characteristics of fluid pressure in the Zhanhua Subbasin,Jiyang Depression,Bohai Gulf Basin and their influence on oil and gas accumulations[J].Journal of Geo-mechanics,2006,12(1):37-42.]
[7]朱筱敏,王英国,钟大康,等.济阳坳陷古近系储层孔隙类型与次生孔隙成因[J].地质学报,2007,81(2):197-206.[ZHU Xiao-min,WANG Ying-guo,ZHONG Da-kang,et al.Pore types and secondary pore evolution of paleogene reservoir inthe Jiyang Sag[J].Acta Geologica Sinica,2007,81(2):197-206.]
[8]石彦.含油气水地层的物性参数响应特征[J].石油物探,2003,42(2):200-204.[SHI Yan.Petro-physical characteris-tics of formationfilled with oil,gas,or water[J].Geophysical Prospecting for Petroleum,2003,42(2):200-204.]
[9]胜利油田物探研究院.砂砾岩体识别与描述技术[R].2003.[Geophysics Research Institute of Shengli Oilfield Ltd.Co.I-dentification and description of the sand-gravel body[R].2003.]
[2]周廷全,鲜本忠,林会喜,等.车镇凹陷陡坡带古近系湖底扇沉积规律及储层特征[J].油气地质与采收率,2007,14(2):23-29.[ZHOU Ting-quan,XI AN Ben-zhong,LI N Hui-xi,et al.Sedimentary rules and reservoir characteristics of sub-lacustrine fanin Paleogene in steep of Chenzhen Sag[J].Petro-leum Geology and Recovery,2007,14(2):23-29.]
[3]李洪香,任继红,马建英.异常高孔隙流体压力与碎屑岩深部油气藏[J].石油勘探与开发,2001,28(5):5-11.[LI Hong-xiang,RENJi-hong,MAJian-ying,et al.Abnormal high pore fluid pressure and deep oil and gas pools of clastic rocks[J].Pe-troleum Exploration and Development,2001,28(5):5-11.]
[4]张先平,张树林,陈海红,等.东海西湖凹陷平湖构造带异常压力与油气成藏[J].海洋地质与第四纪地质,2007,27(3):93-97.[ZHANG Xian-ping,ZHANG Shu-lin,CHEN Hai-hong,et al.Abnormal pressure and related reservoir formation in the Pinghu Structural Belts of Xihu Depression,East China Sea[J].Marine Geology and Quaternary Geology,2007,27(3):93-97.]
[5]金业权,王越之,李自俊.地震资料预测地层孔隙压力应基于欠压实成因[J].石油钻探技术,2000,28(3):7-9.[JI N Ye-quan,WANG Yue-zhi,LI Zi-jun.Undercompaction causes for using seismic data to predict formation pore pressure[J].Petro-leum Drilling Techniques,2000,28(3):7-9.]
[6]李胜利,于兴河,陈建阳,等.渤海湾盆地济阳坳陷沾化凹陷地层流体压力分布规律及其对油气成藏的影响[J].地质力学学报,2006,12(1):37-42.[LI Sheng-li,YU Xing-he,CHENJian-yang.Distributing characteristics of fluid pressure in the Zhanhua Subbasin,Jiyang Depression,Bohai Gulf Basin and their influence on oil and gas accumulations[J].Journal of Geo-mechanics,2006,12(1):37-42.]
[7]朱筱敏,王英国,钟大康,等.济阳坳陷古近系储层孔隙类型与次生孔隙成因[J].地质学报,2007,81(2):197-206.[ZHU Xiao-min,WANG Ying-guo,ZHONG Da-kang,et al.Pore types and secondary pore evolution of paleogene reservoir inthe Jiyang Sag[J].Acta Geologica Sinica,2007,81(2):197-206.]
[8]石彦.含油气水地层的物性参数响应特征[J].石油物探,2003,42(2):200-204.[SHI Yan.Petro-physical characteris-tics of formationfilled with oil,gas,or water[J].Geophysical Prospecting for Petroleum,2003,42(2):200-204.]
[9]胜利油田物探研究院.砂砾岩体识别与描述技术[R].2003.[Geophysics Research Institute of Shengli Oilfield Ltd.Co.I-dentification and description of the sand-gravel body[R].2003.]
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心