鄂尔多斯盆地东缘雷家碛地区盒8段致密储层“甜点”预测
|
摘要
鄂尔多斯盆地东缘雷家碛地区盒8段广泛发育辫状河砂体,为典型的致密砂岩气储层。为解决因地震资料品质约束造成的气层预测困难问题,开展了实验室岩心分析测试等方面的研究。结果表明:(1)雷家碛地区盒8段以岩屑砂岩和长石岩屑砂岩为主,储集空间类型包括残余粒间孔、粒间溶孔、粒内溶孔等,面孔率低,孔喉分选差,孔隙结构复杂,为典型致密砂岩储层;(2)压实作用、压溶作用和胶结作用均为破坏性成岩作用,而溶蚀作用和构造破裂作用均有效改善了岩石的储集性;(3)各成岩作用对岩石的改造可引起岩石物理参数变化,依据在三维地震数据体中提取的"甜点"属性与叠前反演得到的泊松比属性,在平面上划分出建设性成岩作用所形成的有利区,可有效预测天然气富集区。根据上述方法部署的LX-41井,其钻探结果与预测结论较为一致。研究成果对类似区域的"甜点"预测具有一定的借鉴意义。
Braided river sand bodies are widely developed in He 8 member in Leijiaqi area,eastern margin of Ordos Basin,which is a typical tight sandstone gas reservoir. In order to solve the difficulty of gas reservoir prediction caused by poor quality of seismic data,laboratory core analysis and testing were carried out. The results show that:(1)The reservoir sandstones of He 8 member in Leijiaqi area are mainly lithic sandstone and feldspathic lithic sandstone. The reservoir spaces include residual intergranular pores,intergranular dissolved pores and intragranular dissolved pores. The reservoir is a typical tight sandstone reservoir with low porosity,poor pore throat sorting and complex pore structure.(2)Compaction,pressure dissolution and cementation are themain destructive diagenesis,while dissolution and structural fracturing can effectively improve the reservoir properties.(3)According to the variation of petrophysics parameters caused by different diagenesis,combined with the attributes of sweet spot extracted from 3 D seismic data and Poisson's ratio obtained by simultaneous pre-stack inversion,favorable areas formed by constructive diagenesis can be divided in plane,and gas enrichment areas can be effectively predicted. The drilling results of well LX-41 deployed according to the above methods are consistent with the prediction results. The research results have a certain guiding significance for the prediction of sweet spot in similar zones.
Braided river sand bodies are widely developed in He 8 member in Leijiaqi area,eastern margin of Ordos Basin,which is a typical tight sandstone gas reservoir. In order to solve the difficulty of gas reservoir prediction caused by poor quality of seismic data,laboratory core analysis and testing were carried out. The results show that:(1)The reservoir sandstones of He 8 member in Leijiaqi area are mainly lithic sandstone and feldspathic lithic sandstone. The reservoir spaces include residual intergranular pores,intergranular dissolved pores and intragranular dissolved pores. The reservoir is a typical tight sandstone reservoir with low porosity,poor pore throat sorting and complex pore structure.(2)Compaction,pressure dissolution and cementation are themain destructive diagenesis,while dissolution and structural fracturing can effectively improve the reservoir properties.(3)According to the variation of petrophysics parameters caused by different diagenesis,combined with the attributes of sweet spot extracted from 3 D seismic data and Poisson's ratio obtained by simultaneous pre-stack inversion,favorable areas formed by constructive diagenesis can be divided in plane,and gas enrichment areas can be effectively predicted. The drilling results of well LX-41 deployed according to the above methods are consistent with the prediction results. The research results have a certain guiding significance for the prediction of sweet spot in similar zones.
引文
[1]赵政璋,杜金虎.致密油气.北京:石油工业出版社,2012:99-142.ZHAO Z Z,DU J H.Tight oil&gas.Beijing:Petroleum Industry Press,2012:99-142.
[2]邹才能,陶士振,侯连华,等.非常规油气地质.北京:地质出版社,2013.ZOU C N,TAO S Z,HOU L H,et al.Unconventional petroleum geology.Beijing:Geological Publishing House,2013.
[3]潘建国,卫平生,张虎全,等.地震储层学与相关学科的比较.岩性油气藏,2010,22(3):1-4.PAN J G,WEI P S,ZHANG H Q,et al.Comparison between seismic reservoir and related subjects.Lithologic Reservoirs,2010,22(3):1-4.
[4]邹才能,张颖.油气勘探开发实用地震新技术.北京:石油工业出版社,2002:148-449.ZOU C N,ZHANG Y.Practical seismic techniques for petroleum exploration and development.Beijing:Petroleum Industry Press,2002:148-449.
[5]熊健,罗丹序,刘向君,等.鄂尔多斯盆地延长组页岩孔隙结构特征及其控制因素.岩性油气藏,2016,28(2):16-23.XIONG J,LUO D X,LIU X J,et al.Characteristics and controlling factors of shale pore structure of Yanchang Formation in Ordos Basin.Lithologic Reservoirs,2016,28(2):16-23.
[6]陈贺贺,朱筱敏,陈纯芳,等.鄂尔多斯盆地彬长区块延长组生储盖组合与油气富集特征.岩性油气藏,2016,28(2):56-63.CHEN H H,ZHU X M,CHEN C F,et al.Characteristics of source-reservoir-caprock assemblage and hydrocarbon accumulation of Yanchang Formation in Binchang block,Ordos Basin.Lithologic Reservoirs,2016,28(2):56-63.
[7]卫平生,潘建国,张虎权,等.地震储层学的概念、研究方法和关键技术.岩性油气藏,2010,22(2):1-6.WEI P S,PAN J G,ZHANG H Q,et al.Concept,method and technology of seismic reservoir.Lithologic Reservoirs,2010,22(2):1-6.
[8]袁媛,杜克锋,葛云锦,等.鄂尔多斯盆地甘泉-富县地区长7烃源岩地球化学特征.岩性油气藏,2018,30(1):39-45.YUAN Y,DU K F,GE Y J,et al.Geochemistry of hydrocarbon source rocks of Chang 7 in Ganquan-Fuxian area,Ordos Basin.Lithologic Reservoirs,2018,30(1):39-45.
[9]王建功,卫平生,王天琦.碎屑岩地震储层学的内涵及关键技术.岩性油气藏,2010,22(4):1-7.WANG J G,WEI P S,WANG T Q.Basic concept and key technologies of clastic seismic reservoir.Lithologic Reservoirs,2010,22(4):1-7.
[10]杨俊杰.鄂尔多斯盆地构造演化与油气分布规律.北京:石油工业出版社,2002:33-38.YANG J J.Tectonic evolution and oil-gas reservoirs distribution in Ordos Basin.Beijing:Petroleum Industry Press,2002:33-38.
[11]刘池阳.盆地多种能源矿产共存富集成藏(矿)研究进展.北京:科学出版社,2005.LIU C Y.Advances in the accumulation and formation for multienergy mineral deposits coexisting in the same basin.Beijing:Science Press,2005.
[12]陈刚,李向平,周立发,等.鄂尔多斯盆地构造与多种矿产的耦合成矿特征.地学前缘,2005,12(4):535-541.CHEN G,LI X P,ZHOU L F,et al.Ordos Basin tectonics relative to the coupling coexistence of multiple energy resources.Earth Science Frontiers,2005,12(4):535-541.
[13]陈刚,丁超.鄂尔多斯盆地东缘紫金山侵入岩热演化史与隆升过程分析.地球物理学报,2012,55(11):3731-3741.CHEN G,DING C.Analysis on the thermal history and uplift process of Zijinshan intrusive complex in the eastern Ordos Basin.Chinese Journal of Geophysics,2012,55(11):3731-3741.
[14]何自新.鄂尔多斯盆地演化与油气.北京:石油工业出版社,2003:66-83.HE Z X.Evolution and oil-gas of Ordos Basin.Beijing:Petroleum Industry Press,2003:66-83.
[15]尹帅,赵威,范子宜.沁水盆地南部地区古构造恢复及其油气意义.岩性油气藏,2017,29(6):43-50.YIN S,ZHAO W,FAN Z Y.Paleo-tectonic restoration in southern Qinshui Basin and its hydrocarbon significance.Lithologic Reservoirs,2017,29(6):43-50.
[16]杨华,付金华,魏新善.鄂尔多斯盆地天然气成藏特征.天然气工业,2005,25(4):5-8.YANG H,FU J H,WEI X S.Characteristics of natural gas reservoir formation in Ordos Basin.Natural Gas Industry,2005,25(4):5-8.
[17]李熙哲,张满郎,谢武仁.鄂尔多斯盆地上古生界岩性气藏形成的主控因素与分布规律.石油学报,2009,30(2):168-175.LI X Z,ZHANG M L,XIE W R.Controlling factors for lithologic gas reservoir and regularity of gas distribution in the Upper Paleozoic of Ordos Basin.Acta Petrolei Sinica,2009,30(2):168-175.
[18]李振宏,席胜利,刘新社.鄂尔多斯盆地上古生界天然气成藏.世界地质,2005,24(2):174-181.LI Z H,XI S L,LIU X S.Formed pool of natural gas in Upper Paleozoic of Ordos Basin.Global Geology,2005,24(2):174-181.
[19]刘畅,王琪,王应斌.鄂尔多斯盆地临兴中区块上古生界盒8段储层发育控制因素.中国海上油气,2018,30(1):50-61.LIU C,WANG Q,WANG Y B.Research on controlling factors of reservoir development in Upper Paleozoic He 8 member in middle Linxing block,Ordos Basin.China Offshore Oil and Gas,2018,30(1):50-61.
[20]陈军,陈岩.地震属性分析在储层预测中的应用.石油物探,2001,40(3):94-99.CHEN J,CHEN Y.Application of seismic attribute analysis in reservoir prediction.Geophysical Prospecting for Petroleum,2001,40(3):94-99.
[21]林承焰,张宪国.石油地震地质学探讨及展望.岩性油气藏,2011,23(1):17-22.LIN C Y,ZHANG X G.Development and prospect of petroleum seismogeology.Lithologic Reservoirs,2011,23(1):17-22.
[22]杨杰,卫平生,李相博.石油地震地质学的基本概念、内容和研究方法.岩性油气藏,2010,22(1):1-6.YANG J,WEI P S,LI X B.Basic concept,content and research method of petroleum seismogeology.Lithologic Reservoirs,2010,22(1):1-6.
[23]张虎权,卫平生,潘建国,等.碳酸盐岩地震储层学.岩性油气藏,2010,22(2):14-17.ZHANG H Q,WEI P S,PAN J G,et al.Carbonate seismic reservoir.Lithologic Reservoirs,2010,22(2):14-17.
[24]滕团余,潘建国,张虎权,等.塔中地区碳酸盐岩储层综合预测技术分析.岩性油气藏,2010,22(4):14-19.TENG T Y,PAN J G,ZHANG H Q,et al.Prediction technique of carbonate reservoir in Tazhong area.Lithologic Reservoirs,2010,22(4):14-19.
[25]董宁,周小鹰,刘振峰,等.鄂北上古生界隐蔽气藏地震储层预测技术.地球物理学进展,2006,21(3):909-916.DONG N,ZHOU X Y,LIU Z F,et al.The application of integrated seismic reservoir prediction in forecasting hidden gas reservoir of Upper Paleozoic group,north Ordos Basin.Progress in Geophysics,2006,21(3):909-916.
[26]RADOVICH B J,OLIVEROS R B.3-D sequence interpretation of seismic instantaneous attributes from the Gorgon field.The Leading Edge,1998,17(9):1286-1293.
[27]刘增勤,王英民,白广臣,等.甜点及其容和属性在深水储层研究中的应用.石油地球物理勘探,2010,45(增刊1):158-162.LIU Z Q,WANG Y M,BAI G C,et al.Application of sweetness and its fusion attribute in the research of deep-water reservoir.Oil Geophysical Prospecting,2010,45(Suppl 1):158-162.
[28]余振,王彦春,何静,等.富含油储层地震响应特征分析.现代地质,2012,26(6):1250-1257.YU Z,WANG Y C,HE J,et al.Seismic response characteristic analysis of oil-rich reservoirs.Geoscience,2012,26(6):1250-1257.
[29]尹继全,衣英杰.地震沉积学在深水沉积储层预测中的应用.地球物理学进展,2013,28(5):2626-2633.YIN J Q,YI Y J.The application of seismic sedimentology in predicting deepwater depositional reservoirs.Progress in Geophysics,2013,28(5):2626-2633.
[30]黄成刚,关新,倪祥龙,等.柴达木盆地英西地区E32咸化湖盆白云岩储集层特征及发育主控因素.天然气地球科学,2017,28(2):219-231.HUANG C G,GUAN X,NI X L,et al.The characteristics and major factors controlling on the E32dolomite reservoirs in saline lacustrine basin in the Yingxi area of Qaidam Basin.Natural Gas Geoscience,2017,28(2):219-231.
[31]黄成刚,倪祥龙,马新民,等.致密湖相碳酸盐岩油气富集模式及稳产、高产主控因素:以柴达木盆地英西地区为例.西北大学学报(自然科学版),2017,47(5):724-738.HUANG C G,NI X L,MA X M,et al.Petroleum and gas enrichment pattern and major controlling factors of stable and high production of tight lacustrine carbonate rock reservoirs:a case of the Yingxi area in Qaidam Basin.Journal of Northwest University(Natural Science Edition),2017,47(5):724-738.
[2]邹才能,陶士振,侯连华,等.非常规油气地质.北京:地质出版社,2013.ZOU C N,TAO S Z,HOU L H,et al.Unconventional petroleum geology.Beijing:Geological Publishing House,2013.
[3]潘建国,卫平生,张虎全,等.地震储层学与相关学科的比较.岩性油气藏,2010,22(3):1-4.PAN J G,WEI P S,ZHANG H Q,et al.Comparison between seismic reservoir and related subjects.Lithologic Reservoirs,2010,22(3):1-4.
[4]邹才能,张颖.油气勘探开发实用地震新技术.北京:石油工业出版社,2002:148-449.ZOU C N,ZHANG Y.Practical seismic techniques for petroleum exploration and development.Beijing:Petroleum Industry Press,2002:148-449.
[5]熊健,罗丹序,刘向君,等.鄂尔多斯盆地延长组页岩孔隙结构特征及其控制因素.岩性油气藏,2016,28(2):16-23.XIONG J,LUO D X,LIU X J,et al.Characteristics and controlling factors of shale pore structure of Yanchang Formation in Ordos Basin.Lithologic Reservoirs,2016,28(2):16-23.
[6]陈贺贺,朱筱敏,陈纯芳,等.鄂尔多斯盆地彬长区块延长组生储盖组合与油气富集特征.岩性油气藏,2016,28(2):56-63.CHEN H H,ZHU X M,CHEN C F,et al.Characteristics of source-reservoir-caprock assemblage and hydrocarbon accumulation of Yanchang Formation in Binchang block,Ordos Basin.Lithologic Reservoirs,2016,28(2):56-63.
[7]卫平生,潘建国,张虎权,等.地震储层学的概念、研究方法和关键技术.岩性油气藏,2010,22(2):1-6.WEI P S,PAN J G,ZHANG H Q,et al.Concept,method and technology of seismic reservoir.Lithologic Reservoirs,2010,22(2):1-6.
[8]袁媛,杜克锋,葛云锦,等.鄂尔多斯盆地甘泉-富县地区长7烃源岩地球化学特征.岩性油气藏,2018,30(1):39-45.YUAN Y,DU K F,GE Y J,et al.Geochemistry of hydrocarbon source rocks of Chang 7 in Ganquan-Fuxian area,Ordos Basin.Lithologic Reservoirs,2018,30(1):39-45.
[9]王建功,卫平生,王天琦.碎屑岩地震储层学的内涵及关键技术.岩性油气藏,2010,22(4):1-7.WANG J G,WEI P S,WANG T Q.Basic concept and key technologies of clastic seismic reservoir.Lithologic Reservoirs,2010,22(4):1-7.
[10]杨俊杰.鄂尔多斯盆地构造演化与油气分布规律.北京:石油工业出版社,2002:33-38.YANG J J.Tectonic evolution and oil-gas reservoirs distribution in Ordos Basin.Beijing:Petroleum Industry Press,2002:33-38.
[11]刘池阳.盆地多种能源矿产共存富集成藏(矿)研究进展.北京:科学出版社,2005.LIU C Y.Advances in the accumulation and formation for multienergy mineral deposits coexisting in the same basin.Beijing:Science Press,2005.
[12]陈刚,李向平,周立发,等.鄂尔多斯盆地构造与多种矿产的耦合成矿特征.地学前缘,2005,12(4):535-541.CHEN G,LI X P,ZHOU L F,et al.Ordos Basin tectonics relative to the coupling coexistence of multiple energy resources.Earth Science Frontiers,2005,12(4):535-541.
[13]陈刚,丁超.鄂尔多斯盆地东缘紫金山侵入岩热演化史与隆升过程分析.地球物理学报,2012,55(11):3731-3741.CHEN G,DING C.Analysis on the thermal history and uplift process of Zijinshan intrusive complex in the eastern Ordos Basin.Chinese Journal of Geophysics,2012,55(11):3731-3741.
[14]何自新.鄂尔多斯盆地演化与油气.北京:石油工业出版社,2003:66-83.HE Z X.Evolution and oil-gas of Ordos Basin.Beijing:Petroleum Industry Press,2003:66-83.
[15]尹帅,赵威,范子宜.沁水盆地南部地区古构造恢复及其油气意义.岩性油气藏,2017,29(6):43-50.YIN S,ZHAO W,FAN Z Y.Paleo-tectonic restoration in southern Qinshui Basin and its hydrocarbon significance.Lithologic Reservoirs,2017,29(6):43-50.
[16]杨华,付金华,魏新善.鄂尔多斯盆地天然气成藏特征.天然气工业,2005,25(4):5-8.YANG H,FU J H,WEI X S.Characteristics of natural gas reservoir formation in Ordos Basin.Natural Gas Industry,2005,25(4):5-8.
[17]李熙哲,张满郎,谢武仁.鄂尔多斯盆地上古生界岩性气藏形成的主控因素与分布规律.石油学报,2009,30(2):168-175.LI X Z,ZHANG M L,XIE W R.Controlling factors for lithologic gas reservoir and regularity of gas distribution in the Upper Paleozoic of Ordos Basin.Acta Petrolei Sinica,2009,30(2):168-175.
[18]李振宏,席胜利,刘新社.鄂尔多斯盆地上古生界天然气成藏.世界地质,2005,24(2):174-181.LI Z H,XI S L,LIU X S.Formed pool of natural gas in Upper Paleozoic of Ordos Basin.Global Geology,2005,24(2):174-181.
[19]刘畅,王琪,王应斌.鄂尔多斯盆地临兴中区块上古生界盒8段储层发育控制因素.中国海上油气,2018,30(1):50-61.LIU C,WANG Q,WANG Y B.Research on controlling factors of reservoir development in Upper Paleozoic He 8 member in middle Linxing block,Ordos Basin.China Offshore Oil and Gas,2018,30(1):50-61.
[20]陈军,陈岩.地震属性分析在储层预测中的应用.石油物探,2001,40(3):94-99.CHEN J,CHEN Y.Application of seismic attribute analysis in reservoir prediction.Geophysical Prospecting for Petroleum,2001,40(3):94-99.
[21]林承焰,张宪国.石油地震地质学探讨及展望.岩性油气藏,2011,23(1):17-22.LIN C Y,ZHANG X G.Development and prospect of petroleum seismogeology.Lithologic Reservoirs,2011,23(1):17-22.
[22]杨杰,卫平生,李相博.石油地震地质学的基本概念、内容和研究方法.岩性油气藏,2010,22(1):1-6.YANG J,WEI P S,LI X B.Basic concept,content and research method of petroleum seismogeology.Lithologic Reservoirs,2010,22(1):1-6.
[23]张虎权,卫平生,潘建国,等.碳酸盐岩地震储层学.岩性油气藏,2010,22(2):14-17.ZHANG H Q,WEI P S,PAN J G,et al.Carbonate seismic reservoir.Lithologic Reservoirs,2010,22(2):14-17.
[24]滕团余,潘建国,张虎权,等.塔中地区碳酸盐岩储层综合预测技术分析.岩性油气藏,2010,22(4):14-19.TENG T Y,PAN J G,ZHANG H Q,et al.Prediction technique of carbonate reservoir in Tazhong area.Lithologic Reservoirs,2010,22(4):14-19.
[25]董宁,周小鹰,刘振峰,等.鄂北上古生界隐蔽气藏地震储层预测技术.地球物理学进展,2006,21(3):909-916.DONG N,ZHOU X Y,LIU Z F,et al.The application of integrated seismic reservoir prediction in forecasting hidden gas reservoir of Upper Paleozoic group,north Ordos Basin.Progress in Geophysics,2006,21(3):909-916.
[26]RADOVICH B J,OLIVEROS R B.3-D sequence interpretation of seismic instantaneous attributes from the Gorgon field.The Leading Edge,1998,17(9):1286-1293.
[27]刘增勤,王英民,白广臣,等.甜点及其容和属性在深水储层研究中的应用.石油地球物理勘探,2010,45(增刊1):158-162.LIU Z Q,WANG Y M,BAI G C,et al.Application of sweetness and its fusion attribute in the research of deep-water reservoir.Oil Geophysical Prospecting,2010,45(Suppl 1):158-162.
[28]余振,王彦春,何静,等.富含油储层地震响应特征分析.现代地质,2012,26(6):1250-1257.YU Z,WANG Y C,HE J,et al.Seismic response characteristic analysis of oil-rich reservoirs.Geoscience,2012,26(6):1250-1257.
[29]尹继全,衣英杰.地震沉积学在深水沉积储层预测中的应用.地球物理学进展,2013,28(5):2626-2633.YIN J Q,YI Y J.The application of seismic sedimentology in predicting deepwater depositional reservoirs.Progress in Geophysics,2013,28(5):2626-2633.
[30]黄成刚,关新,倪祥龙,等.柴达木盆地英西地区E32咸化湖盆白云岩储集层特征及发育主控因素.天然气地球科学,2017,28(2):219-231.HUANG C G,GUAN X,NI X L,et al.The characteristics and major factors controlling on the E32dolomite reservoirs in saline lacustrine basin in the Yingxi area of Qaidam Basin.Natural Gas Geoscience,2017,28(2):219-231.
[31]黄成刚,倪祥龙,马新民,等.致密湖相碳酸盐岩油气富集模式及稳产、高产主控因素:以柴达木盆地英西地区为例.西北大学学报(自然科学版),2017,47(5):724-738.HUANG C G,NI X L,MA X M,et al.Petroleum and gas enrichment pattern and major controlling factors of stable and high production of tight lacustrine carbonate rock reservoirs:a case of the Yingxi area in Qaidam Basin.Journal of Northwest University(Natural Science Edition),2017,47(5):724-738.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |