塔里木盆地麦盖提斜坡奥陶系储层成因与分布
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摘要
岩心、薄片、钻井及成像测井资料综合研究表明,塔里木盆地麦盖提斜坡奥陶系储集空间以裂缝、孔洞为主,不同区带储层发育程度差异大,玉北地区东部储层最好,发育2套优质储层。按成因将储层类型划分为3种:潜山缝洞型、不整合面岩溶型、顺层深潜流岩溶型。鹰山组缝洞型储层受古地貌与裂缝控制,蓬莱坝组具备发育顺层深潜流带岩溶条件,建立了不同类型储层发育的地质模式。以此为指导,结合地震储层预测成果,预测了麦盖提斜坡不同类型储层分布,指出玉北地区东部断褶翼部及断洼区、中西部岩溶残丘带为有利储层勘探区。
A comprehensive study of cores,thin sections,drilling,and imaging logging data indicates that fractures and caves are dominating in the Ordovician reservoir in the Maigaiti slope of Tarim Basin.The Ordovician reservoir is developed to varying degrees in different zones of the slope area,with the best quality(including two sets of high quality reservoir) found in the east area of Yubei.The Ordovician reservoir can be classified into three types according to its genesis,i.e.,burial and epidiagenetic fracture-cave reservoir,unconformity karst reservoir,and bedding deep-underflow karst reservoir.The fracture-cave reservoir of Yingshan Formation is controlled by ancient landform and fractures,whereas the geological conditions of Penglaiba Formation support the development of bedding deep-underflow karst reservoir.A geological development model for different types of Ordovician reservoirs is established and then used in combination with seismic reservoir prediction data for predicting the distribution patterns of different types of reservoirs in the Maigaiti slope.The eastern fault-fold wing and fault-depression areas as well as the mid-western karst hill-belt are identified as favorable zones for reservoir exploration in Yubei area.
A comprehensive study of cores,thin sections,drilling,and imaging logging data indicates that fractures and caves are dominating in the Ordovician reservoir in the Maigaiti slope of Tarim Basin.The Ordovician reservoir is developed to varying degrees in different zones of the slope area,with the best quality(including two sets of high quality reservoir) found in the east area of Yubei.The Ordovician reservoir can be classified into three types according to its genesis,i.e.,burial and epidiagenetic fracture-cave reservoir,unconformity karst reservoir,and bedding deep-underflow karst reservoir.The fracture-cave reservoir of Yingshan Formation is controlled by ancient landform and fractures,whereas the geological conditions of Penglaiba Formation support the development of bedding deep-underflow karst reservoir.A geological development model for different types of Ordovician reservoirs is established and then used in combination with seismic reservoir prediction data for predicting the distribution patterns of different types of reservoirs in the Maigaiti slope.The eastern fault-fold wing and fault-depression areas as well as the mid-western karst hill-belt are identified as favorable zones for reservoir exploration in Yubei area.
引文
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[17]郑剑锋,沈安江,潘文庆,等.塔里木盆地下古生界热液白云岩储层的主控因素及识别特征[J].海相油气地质,2011,16(4):47-56.Zheng Jianfeng,Shen Anjiang,Pan Wenqing,et al.Key controlling factors and identification characteristics of Lower Paleozoic hydrothermal dolostone reservoirs in Tarim Basin[J].Marine Origin Petroleum Geology,2011,16(4):47-56.
[18]杨瑞东,盛学庸,魏晓,等.基于Google Earth影像分析区域性大型X共轭节理系统对宏观岩溶作用的控制[J].地质论评,2009,55(2):173-180.Yang Ruidong,Sheng Xueyong,Wei Xiao,et al.The control of regional large X conjugate joint system on karstification from Google Earth Image[J].Geological Review,2009,55(2):173-180.
[19]张宝民,刘静江.中国岩溶储集层分类与特征及相关的理论问题[J].石油勘探与开发,2009,36(1):12-29.Zhang Baomin,Liu Jingjiang.Classification and characteristics of karst reservoirs in China and related theories[J].Petroleum Exploration and Development,2009,36(1):12-29.
[20]邓胜徽,黄智斌,景秀春,等.塔里木盆地西部奥陶系内部不整合[J].地质论评,2008,54(6);741-747.Deng Shenghui,Huang Zhibin,Jing Xiuchun,et al.Unconformities in the Ordovician of Western Tarim Basin,NW China[J].Geological Review,2008,54(6):741-747.
[2]郑和荣,吴茂炳,邬兴威,等.塔里木盆地下古生界白云岩储层油气勘探前景[J].石油学报,2007,28(2):1-8.Zheng Herong,Wu Maobing,Wu Xingwei,et al.Oil-gas exploration prospect of dolomite reservoir in the lower Paleozoicof Tarim Basin[J].Acta Petrolei Sinica,2007,28(2):1-8.
[3]杨威,魏国齐,王清华,等.和田河气田奥陶系碳酸盐岩储层特征及建设性成岩作用[J].天然气地球科学,2003,14(3):191-195.Yang Wei,Wei Guoqi,Wang Qinghua,et al.Carbonate rock reservoir and constructive diagenesis of Ordovician in Hetianhe Gas Field,Tarim Basin[J].Natural Gas Geoscience,2003,14(3):191-195.
[4]郑显华.塔里木盆地西部巴楚—麦盖提地区石油地质特征及勘探建议[J].石油实验地质,1995,17(2):114-120Zheng Xianhua.Petroleum geological characteristics of and exploration proposals to Bachu-Maigaiti area of the west Tarim Basin[J].Petroleum Geology&Experiment,1995,17(2):114-120.
[5]马红强,王恕一,蔺军.塔里木盆地巴楚—麦盖提地区油气运聚与成藏[J].石油实验地质,2006,28(3):243-248Ma Hongqiang,Wang Shuyi,Lin Jun.Hydrocarbon migration and accumulation characteristics in the Bachu-Maigaiti area of the Tarim Basin[J].Petroleum Geology&Experiment,2006,28(3):243-248.
[6]吕海涛,张仲培,邵志兵,等.塔里木盆地巴楚—麦盖提地区早古生代古隆起的演化及其勘探意义[J].石油与天然气地质,2010,31(1):76-83.Lil Haitao,Zhang Zhongpei,Shao Zhibing,et al.Structural evolution and exploration significance of the Early Paleozoic palaeouplifts in Bachu-Maigaiti area,the Tarim Basin[J].Oil&Gas Geology,2010,31(1):76-83.
[7]邬光辉,李洪辉,张立平,等.塔里木盆地麦盖提斜坡奥陶系风化壳成藏条件[J].石油勘探与开发,2012,39(2):144-153.Wu Guanghui,Li Honghui,Zhang Liping,et al.Reservoir-forming conditions of the Ordovician weathering crust in the Maigaiti slope,Tarim Basin,NW China[J].Petroleum Exploration and Development,2012,39(2):144-153.
[8]刘忠宝,吴仕强,刘士林,等.塔里木盆地玉北地区奥陶系储层类型及主控因素[J].石油学报,2013,34(4):638-646.Liu Zhongbao,Wu Shiqiang,Liu Shilin,et al.Types and main controlling factors of Ordovician reservoir in Yubei area,Tarim Basin[J].Acta Petrolei Sinica,2013,34(4):638-646.
[9]何莹,鲍志东,沈安江,等.塔里木盆地牙哈—英买力地区寒武系—下奥陶统白云岩形成机理[J].沉积学报,2006,24(6):806-818.He Ying,Bao Zhidong,Shen Anjiang,et al.The genetic mechanism of dolostones of the Cambrian-Lower Ordovician in Yaha-Yingmaili region,Tarim Basin:dolomitization through deep buried hydrothermal fluid[J].Acta Sedimentologica Sinica,2006,24(6):806-818.
[10]赵文智,沈安江,胡素云,等.塔里木盆地寒武—奥陶系白云岩储层类型与分布特征[J].岩石学报,2012,28(3):758-768.Zhao Wenzhi,Shen Anjiang,Hu Suyun,et al.Types and distributional features of Cambrian-Ordovician dolostone reservoirs in Tarim Basin,northwestern China[J].Acta Petrologica Sinica,2012,28(3):758-768.
[11]吴仕强,朱井泉,王国学,等.塔里木盆地寒武—奥陶系白云岩结构构造类型及其形成机理[J].岩石学报,2008,24(6):1390-1400Wu Shiqiang,Zhu Jingquan,Wang Guoxue,et al.Types and origin of Cambrian-Ordovician dolomites in Tarim Basin[J].Acta Petrologica Sinica,2008,24(6):1390-1400.
[12]肖玉茹,王敦则,沈杉平.新疆塔里木盆地塔河油田奥陶系古洞穴型碳酸盐岩储层特征及其受控因素[J].现代地质,2003,17(1):92-98.Xiao Yuru,Wang Dunze,Shen Shanping.The characteristics of Paleocave carbonate reservoir and its control factors in Ordovician of the Tahe oil field in the Tarim Basin,Xinjiang[J].Geoscience,2003,17(1):92-98.
[13]张朝军,贾承造,李本亮,等.塔北隆起中西部地区古岩溶与油气聚集[J].石油勘探与开发,2010,37(3):263-269.Zhang Chaojun,Jia Chengzao,Li Benliang,et al.Ancient karsts and hydrocarbon accumulation in the middle and western parts of the North Tarim uplift,NW China[J].Petroleum Exploration and Development,2010,37(3):263-269.
[14]杨海军,韩剑发,孙崇浩,等.塔中北斜坡奥陶系鹰山组岩溶型储层发育模式与油气勘探[J].石油学报,2011,32(2):199-205.Yang Haijun,Han Jianfa,Sun Chonghao,et al.A development model and petroleum exploration of karst reservoirs of Ordovician Yingshan Formation in the northern slope of Tazhong palaeouplift[J].Acta Petrolei Sinica,2011,32(2):199-205.
[15]陈代钊.构造-热液白云岩化作用与白云岩储层[J].石油与天然气地质,2008,29(5):614-622.Chen Daizhao.Structure-controlled hydrothermal dolomitization and hydrothermal dolomite reservoirs[J].Oil&Gas Geology,2009,29(5):614-622.
[16]于炳松,樊太亮,黄文辉,等.层序地层格架中岩溶储层发育的预测模型[J].石油学报,2007,28(4):41-45.Yu Bingsong,Fan Tailiang,Huang Wenhui,et al.Predictive model for karst reservoirs in sequence stratigraphic framework[J].Acta Petrolei Sinica,2007,28(4):41-45.
[17]郑剑锋,沈安江,潘文庆,等.塔里木盆地下古生界热液白云岩储层的主控因素及识别特征[J].海相油气地质,2011,16(4):47-56.Zheng Jianfeng,Shen Anjiang,Pan Wenqing,et al.Key controlling factors and identification characteristics of Lower Paleozoic hydrothermal dolostone reservoirs in Tarim Basin[J].Marine Origin Petroleum Geology,2011,16(4):47-56.
[18]杨瑞东,盛学庸,魏晓,等.基于Google Earth影像分析区域性大型X共轭节理系统对宏观岩溶作用的控制[J].地质论评,2009,55(2):173-180.Yang Ruidong,Sheng Xueyong,Wei Xiao,et al.The control of regional large X conjugate joint system on karstification from Google Earth Image[J].Geological Review,2009,55(2):173-180.
[19]张宝民,刘静江.中国岩溶储集层分类与特征及相关的理论问题[J].石油勘探与开发,2009,36(1):12-29.Zhang Baomin,Liu Jingjiang.Classification and characteristics of karst reservoirs in China and related theories[J].Petroleum Exploration and Development,2009,36(1):12-29.
[20]邓胜徽,黄智斌,景秀春,等.塔里木盆地西部奥陶系内部不整合[J].地质论评,2008,54(6);741-747.Deng Shenghui,Huang Zhibin,Jing Xiuchun,et al.Unconformities in the Ordovician of Western Tarim Basin,NW China[J].Geological Review,2008,54(6):741-747.
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