影响火山岩裂缝发育因素分析
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摘要
火山岩储层具有物性差、非均质性强的特征。因此裂缝发育特征成为制约气井产能的关键因素,如何评价火山岩裂缝发育特征就成为火山岩气藏开发研究的难点。以松辽盆地南部火山岩气藏为例,利用岩心、测井及叠前三维地震等资料,采用井震结合的方法,识别出松南长岭火山岩气藏5个裂缝密度高值区带及裂缝的2个主要延伸方向,结果与各井钻井显示、测试情况较为吻合,对后期气藏水平井整体开发部署设计起到重要指导作用。这种井震结合的方法较好地解决了火山岩储层裂缝预测识别的难题,对其他地区裂缝性火山岩气藏的开发也具有重要的借鉴意义。
Volcanic reservoir is characterized as poor physical property and strong heterogeneity.The fracture development for the volcanic rock is a fate factor for gas production.How to estimate the fracture of volcanic rock becomes a research challenge for development of volcanic gas reservoir.Taking an example of volcanic gas reservoir in the south Songliao basin,we use core description,logging and prestack 3-D seismic data to identify 5 high crack density block and 2 main crack extent direction,which is consistent with drilling result and test data.Thus,this technology will play an important role for the later deployment of horizontal well in gas reservoir.The method of combining logging and seismic has the ability to identify and predict volcanic reservoir fracture and guide other similar area of fractured volcanic gas reservoir.
Volcanic reservoir is characterized as poor physical property and strong heterogeneity.The fracture development for the volcanic rock is a fate factor for gas production.How to estimate the fracture of volcanic rock becomes a research challenge for development of volcanic gas reservoir.Taking an example of volcanic gas reservoir in the south Songliao basin,we use core description,logging and prestack 3-D seismic data to identify 5 high crack density block and 2 main crack extent direction,which is consistent with drilling result and test data.Thus,this technology will play an important role for the later deployment of horizontal well in gas reservoir.The method of combining logging and seismic has the ability to identify and predict volcanic reservoir fracture and guide other similar area of fractured volcanic gas reservoir.
引文
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[11]Teng Tuanyu,Cui Haifeng,Zhang Nianchun,et al.The seis-mic forecast technology for crack of carbonate rock:Yaha forexample[J].Natural Gas Geoscience,2009,20(2):269-272.[滕团余,崔海峰,张年春,等.碳酸盐岩裂缝储层地震预测技术———以牙哈地区为例[J].天然气地球科学,2009,20(2):269-272.]
[2]Wei Zhaosheng,Ruan Baotao,Li Zhongcheng,et al.Prelimi-nary Development Program of Changling Gas Field[R].Songyuan:Exploration and Development Research Institute ofJilin Oilfield Company,2008:10.[魏兆胜,阮宝涛,李忠诚,等.长岭气田初步开发方案[R].松原:吉林油田勘探开发研究院,2008:10.]
[3]Xu Lei,Qi Jingshun,Luo Minggao,et al.Use multi-parame-ters to comprehensively identify fracture in volcanic rock[J].Natural Gas Exploration and Development,2009,32(1):21-25.[绪磊,齐井顺,罗明高,等.测井多参数综合识别火山岩裂缝[J].天然气勘探与开发,2009,32(1):21-25.]
[4]Dai Junsheng,Xu Jianchun,Meng Zhaoping,et al.Predictionof volcanic rock fissure with finite deformation method[J].Journal of the University of Petroleum,China:Edition of Nat-ural Science,2003,27(1):1-3.[戴俊生,徐建春,孟召平,等.有限变形法在火山岩裂缝预测中的应用[J].石油大学学报:自然科学报,2003,27(1):1-3.]
[5]Gao Xia,Xie Qingbin.Advances in identification and evalua-tion of fracture[J].Progress in Geophysics,2007,22(5):1460-1465.[高霞,谢庆宾.储层裂缝识别与评价方法新进展[J].地球物理学进展,2007,22(5):1460-1465.]
[6]Pan Baozhi,Xue Linfu.Li Zhoubo,et al.Fractured Igneous Reser-voir Evaluation and Application Logging[M].Beijing:PetroleumIndustry Press,2003.[潘保芝,薛林福,李舟波,等.裂缝性火成岩储层测井评价方法与应用[M].北京:石油工业出版社,2003.]
[7]Deng Pan,Chen Mengjin,Gao Zherong,et al.Log responseand explanation of structural fractures in volcanic rock reser-voir[J].Acta Petrolei Sinica,2003,23(6):32-36.[邓攀,陈孟晋,高哲荣,等.火山岩储层构造裂缝的测井识别及解释[J].石油学报,2003,23(6):32-36.]
[8]Smihof E M.The Basic Theory and Method of Fractured Res-ervoir Exploration[M].Beijing:Petroleum Industry Press,1985.[(苏)E.M.斯麦霍夫.裂缝性油气储集层勘探的基本理论与方法[M].北京:石油工业出版社,1985.]
[9]Li X Y.Fracture detection using P-P and P-S waves in multi-component sea-floor data[J].Expanded Abstracts of 68thAn-nual Internat SEG Mtg,1998:2056-2059.
[10]Zhou Xingui,Zhang Linyan,Fan Kun.Quantitative forecastmethod and examples of petroleum basins in low permeabilityreservoir structural cracks[J].Natural Gas Geoscience,2007,18(3):328-333.[周新桂,张林炎,范昆.含油气盆地低渗透储层构造裂缝定量预测方法和实例[J].天然气地球科学,2007,18(3):328-333.]
[11]Teng Tuanyu,Cui Haifeng,Zhang Nianchun,et al.The seis-mic forecast technology for crack of carbonate rock:Yaha forexample[J].Natural Gas Geoscience,2009,20(2):269-272.[滕团余,崔海峰,张年春,等.碳酸盐岩裂缝储层地震预测技术———以牙哈地区为例[J].天然气地球科学,2009,20(2):269-272.]
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