塔中地区岩溶风化壳裂缝型储层预测技术
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摘要
断裂是塔中地区岩溶风化壳裂缝型储层的主要控制因素。且裂缝对于改善碳酸盐岩储层的储集性能、提高储层的连通性作用明显,裂缝预测技术的优选尤为重要。通过探讨地震裂缝预测技术在塔中岩溶风化壳裂缝型储层中的适用性,对比分析其预测效果,得出地震裂缝预测技术的预测结果与该区的钻井资料吻合。曲率分析法预测的无效裂缝较多,相干预测的裂缝方位与断裂走向具有较好的一致性,古应力场分析法主要用于预测断裂、裂缝的发育趋势,叠前AVO梯度法对于大断裂周围的裂缝发育带或者岩溶缝洞体的边缘地带预测效果较好。
Fracture is a key facter to improve the property and connectivity of carbonate reservoir,how to optimize the prediction technologies of fractures is an important work.We used the integrated seismic fracture detection technology to predict the weathering crust and fracture reservoir in the Tazhong area and contrasted with the predictive results.The results predicted by the technologies are provably identical with the drilling data.More ineffective fractures may be identified by curvature analysis.The fracture directions predicted by coherence technology are consistent with the fault strikes.The paleo-stress field analytical method is mainly suitable for the prediction of developing trend of faults and fractures.The prestack AVO gradient method has a good effect in the prediction of fracture belts around large faults and brim of karst fracture-cave body.
Fracture is a key facter to improve the property and connectivity of carbonate reservoir,how to optimize the prediction technologies of fractures is an important work.We used the integrated seismic fracture detection technology to predict the weathering crust and fracture reservoir in the Tazhong area and contrasted with the predictive results.The results predicted by the technologies are provably identical with the drilling data.More ineffective fractures may be identified by curvature analysis.The fracture directions predicted by coherence technology are consistent with the fault strikes.The paleo-stress field analytical method is mainly suitable for the prediction of developing trend of faults and fractures.The prestack AVO gradient method has a good effect in the prediction of fracture belts around large faults and brim of karst fracture-cave body.
引文
[1]Gong Honglin.Geophysical characteristics of Ordovician Carbon-ate rock,central Tarim basin[J].Natural Gas Geoscience,2009,20(1):138-142.[龚洪林.塔中地区奥陶系碳酸盐岩岩石地球物理特征研究[J].天然气地球科学,2009,20(1):138-142.]
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[10]Sun Shangru.Application comparison of two curvature meth-ods for predicating reservoir fractures[J].Geological Scienceand Technology Information,2003,22(4):71-74.[孙尚如.预测储层裂缝的两种曲率方法应用比较[J].地质科技情报,2003,22(4):71-74.]
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[12]Wang Zhenqing,Wang Hongbin,Gong Honglin.Improvementof the coherency technique and its application in carbonatefracture reservoirs[J].Natural Gas Geoscience,2009,20(6):977-981.[王振卿,王宏斌,龚洪林.地震相干技术的发展及在碳酸盐岩储层预测中的应用[J].天然气地球科学,2009,20(6):977-981.]
[13]Xiao Li.Application of 3D Move fracture prediction technique inpredicting Chengbei 30 buried hill fracture[J].Coastal Engineer-ing,2007,26(3):55-60.[肖丽.3DMove裂缝预测技术在埕北30潜山裂缝预测中的应用[J].海岸工程,2007,26(3):55-60.]
[14]Mallick S,Craft K L,Meister L J,et al.Determination of deeptight gas sands using azimuthal velocity and AVO seismic data inSaudi Arabia[J].The Leading Edge,2003,22(3):469-475.
[15]Zhang Zhongjie.A review of the seismic anisotropy and itsapplications[J].Progress in Geophysics,2002,17(2):281-292.[张中杰.地震各向异性研究进展[J].地球物理学进展,2002,17(2):281-292.]
[16]Bi Yanbin,Long Shengxiang,Guo Tonglou.Application ofseismic azimuth anisotropic technique in fractural detection oflower Triassic Jia-2 reservoir in TNB area[J].Oil GeophysicalProspecting,2009,44(2):190-195.[毕研斌,龙胜祥,郭彤楼.地震方位各向异性技术在TNB地区嘉二段储层裂缝检测中的应用[J].石油地球物理勘探,2009,44(2):190-195.]
[2]Murray G H.Quantitative fracture study,Sanish pool,Mckenziecounty,north Dakota[J],AAPG Bulletin,1968,52(1):57-65.
[3]Su Peidong,Qin Qirong,Huang Runqiu.Prospects and statusfor the study on reservoir fractures[J].Journal of SouthwestPetroleum Institute,2005,27(5):14-17.[苏培东,秦启荣,黄润秋.储层裂缝预测研究现状与展望[J].西南石油学院学报,2005,27(5):14-17.]
[4]Andrey Bakulin,Vladimir Grechka,Llya Tsvankin.Estimationof fracture parameters from reflection seismic data-PartⅠ:HTI model due to a single fracture set[J].Geophysics,2002,65(6):1788-1802.
[5]Andrey Bakulin,Vladimir Grechka,Llya Tsvankin.Estimationof fracture parameters from reflection seismic data-PartⅡ:Fractured models with orthorhombic symmetry[J].Geophys-ics,2002,65(6):1803-1817.
[6]Andrey Bakulin,Vladimir Grechka,Llya Tsvankin.Estimationof fracture parameters from reflection seismic data-PartⅢ:Fractured models with monoclinic symmetry[J].Geophysics,2002,65(6):1818-1830.
[7]He Yudan,Wei Chunguang.The present situation and re-search direction of evaluation methods in fracture type reser-voir[J].Progress in Geophysics,2007,22(2):537-543.[何雨丹,魏春光.裂缝型油气藏勘探评价面临的挑战及发展方向[J].地球物理学进展,2007,22(2):537-543.]
[8]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.]
[9]Xu Jianliang,Cheng Xubin,Pan Xiaohua,et al.Fracture andcavity prediction method In carbonate reservoirs and its appli-cation[J].Natural Gas Industry,2007,27(11):40-42.[徐剑良,程绪彬,潘校华,等.碳酸盐岩储层缝洞的预测方法与应用[J].天然气工业,2007,27(11):40-42.]
[10]Sun Shangru.Application comparison of two curvature meth-ods for predicating reservoir fractures[J].Geological Scienceand Technology Information,2003,22(4):71-74.[孙尚如.预测储层裂缝的两种曲率方法应用比较[J].地质科技情报,2003,22(4):71-74.]
[11]Liu Chuanhu.Application of seismic coherent analysis tech-nology to prediction of fractured reservoir[J].Oil GeophysicalProspecting,2001,36(2):238-244.[刘传虎.地震相干分析技术在裂缝油气藏预测中的应用[J].石油地球物理勘探,2001,36(2):238-244.]
[12]Wang Zhenqing,Wang Hongbin,Gong Honglin.Improvementof the coherency technique and its application in carbonatefracture reservoirs[J].Natural Gas Geoscience,2009,20(6):977-981.[王振卿,王宏斌,龚洪林.地震相干技术的发展及在碳酸盐岩储层预测中的应用[J].天然气地球科学,2009,20(6):977-981.]
[13]Xiao Li.Application of 3D Move fracture prediction technique inpredicting Chengbei 30 buried hill fracture[J].Coastal Engineer-ing,2007,26(3):55-60.[肖丽.3DMove裂缝预测技术在埕北30潜山裂缝预测中的应用[J].海岸工程,2007,26(3):55-60.]
[14]Mallick S,Craft K L,Meister L J,et al.Determination of deeptight gas sands using azimuthal velocity and AVO seismic data inSaudi Arabia[J].The Leading Edge,2003,22(3):469-475.
[15]Zhang Zhongjie.A review of the seismic anisotropy and itsapplications[J].Progress in Geophysics,2002,17(2):281-292.[张中杰.地震各向异性研究进展[J].地球物理学进展,2002,17(2):281-292.]
[16]Bi Yanbin,Long Shengxiang,Guo Tonglou.Application ofseismic azimuth anisotropic technique in fractural detection oflower Triassic Jia-2 reservoir in TNB area[J].Oil GeophysicalProspecting,2009,44(2):190-195.[毕研斌,龙胜祥,郭彤楼.地震方位各向异性技术在TNB地区嘉二段储层裂缝检测中的应用[J].石油地球物理勘探,2009,44(2):190-195.]
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