四川盆地川中地区震旦系灯影组台地边缘相带地震识别及其分段特征
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摘要
四川盆地绵竹-长宁裂陷东、西两侧发育震旦系灯影组台地边缘相带,是重要的油气富集区。运用地震精细解释及层拉平等技术对台地边缘相带开展地震识别、精细刻画及分布研究。台地边缘相带地震反射特征为"丘状"反射或括弧状外形、内部为杂乱或蚯蚓状反射、中弱振幅、中低频率。绵竹-长宁裂陷东、西两侧震旦系灯影组发育灯一期、灯二期及灯四期3期台地边缘相带,其中灯二期发育两个级别台地边缘相带。灯一期台地边缘相带分布在安岳-乐至东侧地区,近南北向展布;灯二期台地边缘相带呈半环状展布;裂陷东侧灯四期台地边缘相带在安岳以南为近南北向,在遂宁-射洪地区为北东南西方向。四川盆地川中地区震旦系灯影组台地边缘相带分布指示出震旦系灯影组有利勘探区带,对勘探具有一定的指导意义。
The Sinian Dengying Formation platform margin facies is developed in east and west of the Mianzhu-Changning Rift,Sichuan Basin,where oil and gas accumulated. Seismic recognition,fine characterization and distribution features of the platform facies zones are carried out by means of detailed interpretation of seismic facies and horizon flattening. Seismic reflection features of facies zones on the platform margin are "dome-shaped"or brackish-shaped,with internal messy or earthworm-like reflections,moderate to weak amplitudes,and low to intermediate frequencies. Three stages of platform margin zones,Z_2dn~1,Z_2dn~2 and Z_2dn~4,developed in east and west of the Mianzhu-Changning Rift,and two stages of platform margin zones developed in Z_2dn~2. The Z_2dn~1 platform margin zone is distributed in eastern area of the Anyue-Lezhi,trending in near North-South direction. The Z_2dn~2 platform margin zone is distributed in a semi-circle shape. The Z_2dn~4 platform margin zone trends in near north-south direction to the south of the Anyue,and in northeast-southwest direction in the Suining-Shehong area. The distribution pattern of the platform margin facies of the Sinian Dengying Formation in the central Sichuan Basin indicates that the Sinian Dengying Formation has favorable exploration zones. This characterization work gives some guidance for further oil and gas exploration.
The Sinian Dengying Formation platform margin facies is developed in east and west of the Mianzhu-Changning Rift,Sichuan Basin,where oil and gas accumulated. Seismic recognition,fine characterization and distribution features of the platform facies zones are carried out by means of detailed interpretation of seismic facies and horizon flattening. Seismic reflection features of facies zones on the platform margin are "dome-shaped"or brackish-shaped,with internal messy or earthworm-like reflections,moderate to weak amplitudes,and low to intermediate frequencies. Three stages of platform margin zones,Z_2dn~1,Z_2dn~2 and Z_2dn~4,developed in east and west of the Mianzhu-Changning Rift,and two stages of platform margin zones developed in Z_2dn~2. The Z_2dn~1 platform margin zone is distributed in eastern area of the Anyue-Lezhi,trending in near North-South direction. The Z_2dn~2 platform margin zone is distributed in a semi-circle shape. The Z_2dn~4 platform margin zone trends in near north-south direction to the south of the Anyue,and in northeast-southwest direction in the Suining-Shehong area. The distribution pattern of the platform margin facies of the Sinian Dengying Formation in the central Sichuan Basin indicates that the Sinian Dengying Formation has favorable exploration zones. This characterization work gives some guidance for further oil and gas exploration.
引文
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[10]王招明,赵宽志,邬光辉,等.塔中I号坡折带上奥陶统礁滩型储层发育特征及其主控因素[J].石油与天然气地质,2007,28(6):797-781.Wang Zhaoming,Zhao Kuanzhi,Wu Guanghui,et al.Characteristics and main controlling factors of the Upper Ordovician reef-bank reservoir development in the Tazhong I slope-break zone[J].Oil&Gas Geology,2007,28(6):797-781.
[11]吕彩丽,姚永坚,吴时国,等.南沙海区万安盆地中新世碳酸盐台地的地震响应与沉积特征[J].地球科学——中国地质大学学报,2011,36(5):931-938.Lu Caili,Yao Yongjian,Wu Shiguo,et al.Seismic response and sedimentary characteristics of Miocene carbonate platform in Wanan basin,Nanshahaiarea[J].Earth Science-Journal of China University of Geosciences,2011,36(5):931-938.
[12]余宽宏,金振奎.地震相在塔里木盆地古城地区碳酸盐岩台地演化及特征分析中的应用[J].天然气地球科学,2011,22(1):115-121.Yu Kuanhong,Jin Zhenkui.Application of seismic facies in the analysis of characteristics and evolution of the carbonate platform of Guchen area in Tarim Basin[J].Natural Gas Geoscience,2011,22(1):115-121.
[13]Brown L F.地震地层解释原理-地震资料的沉积系统和岩相解释[J].国外油气勘探,1983.Brown L F.Seismic Stratigraphic Interpretation Principle-Sedimentary system and facies interpretation of seismic data[J].Foreign Oil and Gas Exploration,1983.
[14]Fontaine J M Cussey R碳酸盐岩沉积环境的地震解释[J].国外油气勘探,1988-09-15:49-59.Fontaine J M,Cussey R.Seismic interpretation of carbonate sedimentary environment[J].Foreign Oil and Gas Exploration,1988-09-15:49-59.
[15]金之钧,云金表,周波.塔里木斜坡带类型、特征及其与油气聚集的关系[J].石油与天然气地质,2009,30(2):127-135.Jin Zhijun,Yun Jinbiao,Zhou Bo.Slope zone types,characteristics and its relationship with hydrocarbon accumulation in Tarim Basin[J].Oil&Gas Geology,2009,30(2):127-135.
[16]赵文智,沈安江,周进高,等.礁滩储集层类型、特征、成因及勘探意义-以塔里木和四川盆地为例[J].石油勘探与开发,2014,41(3):257-267.Zhao Wenzhi,Shen Anjiang,Zhou Jingao,et al.Reef flat reservoir types,characteristics,genesis and prospecting significance-tanking Tarim Basin and Sichuan Basin as examples[J].Petroleum Exploration and development,2014,41(3):257-267.
[17]何治亮,张军涛,丁茜,等.深层-超深层优质碳酸盐岩储层形成控制因素[J].石油与天然气地质,2017,38(4):633-645.He Yeliang,Zhang Juntao,Ding Qian,et al.Factors controlling the formation of high-quality deep to ultra-deep carbonate reservoirs[J].Oil&Gas Geology,2017,38(4):633-645.
[18]王大鹏,陆红梅,陈小亮,等.海相碳酸盐岩大中型油气田成藏体系及分布特征[J].石油与天然气地质,2016,37(3):363-371.Wang Dapeng,Lu Hongmei,Chen Xiaoliang,et al.Petroleum accumulation systems and distribution of medium to large marine carbonate fields[J].Oil&Gas Geology,2016,37(3):363-371.
[19]贺锋,林畅松,刘景,等.彦塔东南寒武系-中下奥陶统碳酸盐岩台缘带的迁移与相对海平面变化的关系[J].石油与天然气地质,2017,38(4):711-721.He Feng,Lin Changsong,Liu Jingyan,et al.Migration of the Cambrian and Middle-Lower Ordovician carbonate platform margin and its relation to relative sea level changes in southeastern Tarim Basin[J].Oil&Gas Geology,2017,38(4):711-721.
[20]罗贝维,魏国齐,杨威,等.四川盆地晚震旦世古海洋环境恢复及地质意义[J].中国地质,2013,40(4):1099-1111.Luo Beiwei,Wei Guoqi,Yang Wei,et al.Reconstruction of the late Sinian paleo-ocean environment in Sichuan basin and its geological significance[J].Geology in China,2013,40(4):1099-1111.
[2]邹才能,杜金虎,徐春春,等.四川盆地震旦系寒武系特大型气田形成分布、资源潜力及勘探发现[J].石油勘探与开发,2014,41(3):278-293.Zou Caineng,Du Jinhu,Xu Chunchun,et al.Formation,distribution,resource potential and discovery of the Sinian-Cambrian giant gas field,Sichuan Basin,SW China[J].Petroleum Exploration and Development,2014,41(3):278-293.
[3]赵文智,汪泽成,胡素云,等.中国陆上三大克拉通盆地海相碳酸盐岩油气藏大型化成藏条件与特征[J].石油学报,2012,33(S2):1-10.Zhao Wen Zhi,Wang Zecheng,Hu Suyun,et al.Large-scale hydrocarbon accumulation factors and characteristics of marine carbonate reservoir in three large onshore cartonic basins in China[J].Acta Petrolei Sinica,2012,33(Supplement 2):1-10.
[4]杨威,魏国齐,赵蓉蓉,等.四川盆地震旦系灯影组岩溶储层特征及展布[J].天然气工业,2014,34(3):55-60.Yang Wei,Wei Guoqin,Zhao Rongrong,et al.Characteristics and distribution of karst reservoir in the Sinian Dengying Fm,Sichuan Basin[J].Natural Gas Industry,2014,34(3):55-60.
[5]张光亚,赵文智,王红军,等.塔里木盆地多旋回构造演化与复合含油气系统[J].石油与天然气地质,2007,28(5):653-663.Zhang Guangya,Zhao Wenzhi,Wang Hongjun,et al.Multicycle tectonic evolution and the composite petroleum system of Tarim Basin[J].Oil&Gas Geology,2007,28(5):653-663.
[6]陶崇智,白国平,王大鹏,等.塔里木盆地与威利斯顿盆地古生界海相碳酸盐岩油气成藏特征对比[J].石油与天然气地质,2013,34(4):431-440.Tao Chongzhi,Bai Guoping,Wang Dapeng,et al.Comparation on hy-drocarbon accumulation characteristics of Paleozoic marine carbonatesin Tarim Basin and in Willis basin[J].Oil&Gas Geology,2013,34(4):431-440.
[7]刘忠宝,杨圣彬,焦存礼,等.塔里木盆地巴楚隆起中、下寒武统高精度层序地层与沉积特征[J].石油与天然气地质,2012,33(1):70-76.Liu Zhongbao,Yang Shengbin,Jiao Cunli,et al.High-resolution sequence stratigraphy and sedimentary features of the middle and lower Cambrian of Bachu lift in Tarim Basin[J].Oil&Gas Geology,2012,33(1):70-76.
[8]肖朝晖,王招明,姜仁旗,等.塔里木盆地寒武系碳酸盐岩层序地层特征[J].石油与天然气地质,2011,32(1):1-16.Xiao Zhaohui,Wang Zhaoming,Jiang Renqi,et al.Stratigraphy of Cambrian carbonate sequences in the Tarim Basin[J].Oil&Gas Geology,2011,32(1):1-16.
[9]范兴燕,张研,肖高杰,等.轮深地区寒武系台缘礁滩相储层预测[J].石油与天然气地质,2015,36(5):793-803.Fan Xingyan,Zhang Yan,Xiao Gaojie,et al.Reservoir prediction of the Cambrian reef flat facies of platform margin in Lunshen area[J].Oil&Gas Geology,2015,36(5):793-803.
[10]王招明,赵宽志,邬光辉,等.塔中I号坡折带上奥陶统礁滩型储层发育特征及其主控因素[J].石油与天然气地质,2007,28(6):797-781.Wang Zhaoming,Zhao Kuanzhi,Wu Guanghui,et al.Characteristics and main controlling factors of the Upper Ordovician reef-bank reservoir development in the Tazhong I slope-break zone[J].Oil&Gas Geology,2007,28(6):797-781.
[11]吕彩丽,姚永坚,吴时国,等.南沙海区万安盆地中新世碳酸盐台地的地震响应与沉积特征[J].地球科学——中国地质大学学报,2011,36(5):931-938.Lu Caili,Yao Yongjian,Wu Shiguo,et al.Seismic response and sedimentary characteristics of Miocene carbonate platform in Wanan basin,Nanshahaiarea[J].Earth Science-Journal of China University of Geosciences,2011,36(5):931-938.
[12]余宽宏,金振奎.地震相在塔里木盆地古城地区碳酸盐岩台地演化及特征分析中的应用[J].天然气地球科学,2011,22(1):115-121.Yu Kuanhong,Jin Zhenkui.Application of seismic facies in the analysis of characteristics and evolution of the carbonate platform of Guchen area in Tarim Basin[J].Natural Gas Geoscience,2011,22(1):115-121.
[13]Brown L F.地震地层解释原理-地震资料的沉积系统和岩相解释[J].国外油气勘探,1983.Brown L F.Seismic Stratigraphic Interpretation Principle-Sedimentary system and facies interpretation of seismic data[J].Foreign Oil and Gas Exploration,1983.
[14]Fontaine J M Cussey R碳酸盐岩沉积环境的地震解释[J].国外油气勘探,1988-09-15:49-59.Fontaine J M,Cussey R.Seismic interpretation of carbonate sedimentary environment[J].Foreign Oil and Gas Exploration,1988-09-15:49-59.
[15]金之钧,云金表,周波.塔里木斜坡带类型、特征及其与油气聚集的关系[J].石油与天然气地质,2009,30(2):127-135.Jin Zhijun,Yun Jinbiao,Zhou Bo.Slope zone types,characteristics and its relationship with hydrocarbon accumulation in Tarim Basin[J].Oil&Gas Geology,2009,30(2):127-135.
[16]赵文智,沈安江,周进高,等.礁滩储集层类型、特征、成因及勘探意义-以塔里木和四川盆地为例[J].石油勘探与开发,2014,41(3):257-267.Zhao Wenzhi,Shen Anjiang,Zhou Jingao,et al.Reef flat reservoir types,characteristics,genesis and prospecting significance-tanking Tarim Basin and Sichuan Basin as examples[J].Petroleum Exploration and development,2014,41(3):257-267.
[17]何治亮,张军涛,丁茜,等.深层-超深层优质碳酸盐岩储层形成控制因素[J].石油与天然气地质,2017,38(4):633-645.He Yeliang,Zhang Juntao,Ding Qian,et al.Factors controlling the formation of high-quality deep to ultra-deep carbonate reservoirs[J].Oil&Gas Geology,2017,38(4):633-645.
[18]王大鹏,陆红梅,陈小亮,等.海相碳酸盐岩大中型油气田成藏体系及分布特征[J].石油与天然气地质,2016,37(3):363-371.Wang Dapeng,Lu Hongmei,Chen Xiaoliang,et al.Petroleum accumulation systems and distribution of medium to large marine carbonate fields[J].Oil&Gas Geology,2016,37(3):363-371.
[19]贺锋,林畅松,刘景,等.彦塔东南寒武系-中下奥陶统碳酸盐岩台缘带的迁移与相对海平面变化的关系[J].石油与天然气地质,2017,38(4):711-721.He Feng,Lin Changsong,Liu Jingyan,et al.Migration of the Cambrian and Middle-Lower Ordovician carbonate platform margin and its relation to relative sea level changes in southeastern Tarim Basin[J].Oil&Gas Geology,2017,38(4):711-721.
[20]罗贝维,魏国齐,杨威,等.四川盆地晚震旦世古海洋环境恢复及地质意义[J].中国地质,2013,40(4):1099-1111.Luo Beiwei,Wei Guoqi,Yang Wei,et al.Reconstruction of the late Sinian paleo-ocean environment in Sichuan basin and its geological significance[J].Geology in China,2013,40(4):1099-1111.
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