塔里木盆地巴楚地区石炭系层序地层学特征
|
摘要
对岩芯进行观察与描述,对测井曲线与岩性的岩-电关系进行对比,对地震反射特征进行研究,并采用层序地层学对连井剖面进行对比。研究结果表明:研究区石炭纪地层内反映海平面变化的地层旋回性十分清楚;按层序划分的基本原则,在石炭纪地层中可识别出6个层序边界,相应地划分出5个层序,其中至少有2个Ⅰ型层序;在Ⅰ型层序内部,低位体系域发育较差,主要为侵蚀沟谷充填体系及山前的扇体系;海侵体系域以碳酸盐岩沉积为主;而高位体系域则表现为西南以碳酸盐岩为主,向东北则逐渐过渡为广泛的碎屑潮坪或沼泽;自生屑灰岩段沉积时开始,巴楚地区西南缘构造沉降速率明显加快,沉积厚度加大,碳酸盐岩的含量也相应增加。
Based on the detailed observation and description of the rock cores, the contrast of rock-electricity relation between logging curve and lithology, and the study of seismic reflect character were carried out. Combining the observation of outcrop section and test analysis, Carboniferous stratum cycles that reflect sea level change were studied. Sequences correlation of wells tie was made. The results show that the Carboniferous stratum cycles are significantly clear in the study area. According to the basic laws of sequence dividing, six sequence boundaries can be recognized, accordingly, five sequences can be divided in Carboniferous stratum, and at leaset two sequences belongs to type Ⅰ. The lowstand system tract doesn’t present well in type Ⅰ sequences, which presents incised channel infilling deposition and basin margin fan system deposition. Transgressive system tract mainly deposits carbonatite. Highstand system tract deposits carbonatite at adjacent basin zone, and changes into extensive clastic tidal flat or swamp deposit toward basin margin. Structure subsiding ratio of southwestern margin is accelerated, deposit thickness becomes thick, and carbonatite content increases.
Based on the detailed observation and description of the rock cores, the contrast of rock-electricity relation between logging curve and lithology, and the study of seismic reflect character were carried out. Combining the observation of outcrop section and test analysis, Carboniferous stratum cycles that reflect sea level change were studied. Sequences correlation of wells tie was made. The results show that the Carboniferous stratum cycles are significantly clear in the study area. According to the basic laws of sequence dividing, six sequence boundaries can be recognized, accordingly, five sequences can be divided in Carboniferous stratum, and at leaset two sequences belongs to type Ⅰ. The lowstand system tract doesn’t present well in type Ⅰ sequences, which presents incised channel infilling deposition and basin margin fan system deposition. Transgressive system tract mainly deposits carbonatite. Highstand system tract deposits carbonatite at adjacent basin zone, and changes into extensive clastic tidal flat or swamp deposit toward basin margin. Structure subsiding ratio of southwestern margin is accelerated, deposit thickness becomes thick, and carbonatite content increases.
引文
[1]吕修祥,周新源,皮学军,等.塔里木盆地巴楚凸起油气聚集及分布规律[J].新疆石油地质,2002,23(6):489-492.LüXiu-xiang,ZHOU Xin-yuan,PI Xue-jun,et al.Accumulation and distribution patterns of hydrocarbon in Bachu Arch of Tarim basin[J].Xinjiang Petroleum Geology,2002,23(6):489-492.
[2]周新源,贾承造,王招明,等.和田河气田碳酸盐岩气藏特征及多期成藏史[J].科学通报,2002,47(增刊):131-136.ZHOU Xin-yuan,JIA Cheng-zao,WANG Zhao-ming,et al.Characteristics and multi-period reservoiring history of carbonate pools in Hetian gas field[J].Chinese Journal of Science,2002,47(Suppl):131-136.
[3]Vail P R,Jr Mitchum R M,Thompson SⅢ.Seismic stratigraphy and global changes of sea level.Part3-4:Global cycles of relative changes of sea level[C]//Payton C E.Seismic Stratigraphy-Applications to Hydrocarbon Exploration.AAPG,1977,26:63-97.
[4]van Wagoner J C,Mitchum R M,Campion K M,et al.Siliciclastic sequence stratigraphy in well logs,cores and outcrops concepts for high-resolution correlation of time and facies[J].AAPG Methods in Exploration Series,1990:1-55.
[5]GUO Jian-hua,ZENG Yun-fu,ZHAI Yong-hong,et al.On the carboniferous sequence Stratigraphy in the Tazhong area,Xinjiang—A model of the sequence stratigraphy framework of intracratonic depressional basin[J].Acta Geologica Sinica:English Edition,1997,71(3):328-343.
[6]郭建华,曾允孚,翟永红,等.塔中地区石炭系东河砂岩层序地层研究[J].沉积学报,1996,14(2):56-65.GUO Jian-hua,ZENG Yun-fu,ZHAI Yong-hong,et al.Sequence stratigaraphy of Carboniferous Donghe sandstone in Tazhong area,Tarim Basin[J].Acta Sedimentologica Sinica,1996,14(2):56-65.
[7]郭建华,朱锐,周小康.塔河地区西南缘东河砂岩的成岩作用与孔隙演化[J].中南大学学报:自然科学版,2006,37(3):572-578.GUO Jian-hua,ZHU Rui,ZHOU Xiao-kang.Diagenesis and porosity evolution of Donghe sandstone in southwest of Tahe area[J].Journal Central South University:Science and Technology,2006,37(3):572-578.
[8]Nemec W,Steel R J.What is fan delta and how do we recognize it-[C]//Nemec W,Steel R J.Fan delta sedimentology and tectonic settings.Glasgow:Blakie and Sons,1988:2-13.
[9]Schlager W.Depositional bias and environmental change—Important factors in sequence stratigraphy[J].Sediment Geol,1991,70:109-130.
[10]张敬艺,罗金海,卿颖,等.塔里木盆地西北缘石炭—二叠系浊积岩的沉积特征及其构造意义[J].西北大学学报:自然科学版,2007,37(5):819-824.ZHANG Jing-yi,LUO Jin-hai,QING Ying,et al.The sedimentary feature and structure significance of turbidite Carboniferous Permian on the northwestern margin of the Tarim Basin[J].Journal of Northwest University:Natural Science Edition,2007,37(5):819-824.
[11]何登发,贾承造,李德生,等.塔里木多旋回叠合盆地的形成与演化[J].石油与天然气地质,2005,26(1):64-76.HE Deng-fa,JIA Cheng-zao,LI De-sheng,et al.Formation and evolution of polycyclic superimposed Tarim Basin[J].Oil and Gas Geology,2005,26(1):64-76.
[12]贾承造.中国塔里木盆地构造特征与油气[M].北京:石油工业出版社,1997.JIA Cheng-zao.The tectonic characters and oil and gas in Tarim Basin of China[M].Beijing:Oil Industry Press,1997.
[13]谭秀成,昌燕,王振宇,等.塔里木盆地巴楚组沉积格局与演化[J].西南石油大学学报,2007,39(4):39-43.TAN Xiu-cheng,CHANG Yan,WANG Zhen-yu,et al.Depositional framework and evolution of Bachu formation in Tarim Basin[J].Journal of Southwest Petroleum University,2007,39(4):39-43.
[14]KUANG Li-xiong,GUO Jian-hua,HUANG Tai-zhu.Forming mechanism of hydrocarbon reservoirs in Yingshan Formation of Yuqi block in Akekule arch,Tarim Basin[J].Journal of Central South University of Technology,2008,15(2):244-250.
[15]何登发,周新源,杨海军,等.塔里木盆地克拉通内古隆起的成因机制与构造类型[J].地学前缘,2008,15(2):207-221.HE Deng-fa,ZHOU Xin-yuan,YANG Hai-jun,et al.Formation mechanism and tectonic types of intracratonic paleo uplifts in the Tarim Basin[J].Earth Science Frontiers,2008,15(2):207-221.
[2]周新源,贾承造,王招明,等.和田河气田碳酸盐岩气藏特征及多期成藏史[J].科学通报,2002,47(增刊):131-136.ZHOU Xin-yuan,JIA Cheng-zao,WANG Zhao-ming,et al.Characteristics and multi-period reservoiring history of carbonate pools in Hetian gas field[J].Chinese Journal of Science,2002,47(Suppl):131-136.
[3]Vail P R,Jr Mitchum R M,Thompson SⅢ.Seismic stratigraphy and global changes of sea level.Part3-4:Global cycles of relative changes of sea level[C]//Payton C E.Seismic Stratigraphy-Applications to Hydrocarbon Exploration.AAPG,1977,26:63-97.
[4]van Wagoner J C,Mitchum R M,Campion K M,et al.Siliciclastic sequence stratigraphy in well logs,cores and outcrops concepts for high-resolution correlation of time and facies[J].AAPG Methods in Exploration Series,1990:1-55.
[5]GUO Jian-hua,ZENG Yun-fu,ZHAI Yong-hong,et al.On the carboniferous sequence Stratigraphy in the Tazhong area,Xinjiang—A model of the sequence stratigraphy framework of intracratonic depressional basin[J].Acta Geologica Sinica:English Edition,1997,71(3):328-343.
[6]郭建华,曾允孚,翟永红,等.塔中地区石炭系东河砂岩层序地层研究[J].沉积学报,1996,14(2):56-65.GUO Jian-hua,ZENG Yun-fu,ZHAI Yong-hong,et al.Sequence stratigaraphy of Carboniferous Donghe sandstone in Tazhong area,Tarim Basin[J].Acta Sedimentologica Sinica,1996,14(2):56-65.
[7]郭建华,朱锐,周小康.塔河地区西南缘东河砂岩的成岩作用与孔隙演化[J].中南大学学报:自然科学版,2006,37(3):572-578.GUO Jian-hua,ZHU Rui,ZHOU Xiao-kang.Diagenesis and porosity evolution of Donghe sandstone in southwest of Tahe area[J].Journal Central South University:Science and Technology,2006,37(3):572-578.
[8]Nemec W,Steel R J.What is fan delta and how do we recognize it-[C]//Nemec W,Steel R J.Fan delta sedimentology and tectonic settings.Glasgow:Blakie and Sons,1988:2-13.
[9]Schlager W.Depositional bias and environmental change—Important factors in sequence stratigraphy[J].Sediment Geol,1991,70:109-130.
[10]张敬艺,罗金海,卿颖,等.塔里木盆地西北缘石炭—二叠系浊积岩的沉积特征及其构造意义[J].西北大学学报:自然科学版,2007,37(5):819-824.ZHANG Jing-yi,LUO Jin-hai,QING Ying,et al.The sedimentary feature and structure significance of turbidite Carboniferous Permian on the northwestern margin of the Tarim Basin[J].Journal of Northwest University:Natural Science Edition,2007,37(5):819-824.
[11]何登发,贾承造,李德生,等.塔里木多旋回叠合盆地的形成与演化[J].石油与天然气地质,2005,26(1):64-76.HE Deng-fa,JIA Cheng-zao,LI De-sheng,et al.Formation and evolution of polycyclic superimposed Tarim Basin[J].Oil and Gas Geology,2005,26(1):64-76.
[12]贾承造.中国塔里木盆地构造特征与油气[M].北京:石油工业出版社,1997.JIA Cheng-zao.The tectonic characters and oil and gas in Tarim Basin of China[M].Beijing:Oil Industry Press,1997.
[13]谭秀成,昌燕,王振宇,等.塔里木盆地巴楚组沉积格局与演化[J].西南石油大学学报,2007,39(4):39-43.TAN Xiu-cheng,CHANG Yan,WANG Zhen-yu,et al.Depositional framework and evolution of Bachu formation in Tarim Basin[J].Journal of Southwest Petroleum University,2007,39(4):39-43.
[14]KUANG Li-xiong,GUO Jian-hua,HUANG Tai-zhu.Forming mechanism of hydrocarbon reservoirs in Yingshan Formation of Yuqi block in Akekule arch,Tarim Basin[J].Journal of Central South University of Technology,2008,15(2):244-250.
[15]何登发,周新源,杨海军,等.塔里木盆地克拉通内古隆起的成因机制与构造类型[J].地学前缘,2008,15(2):207-221.HE Deng-fa,ZHOU Xin-yuan,YANG Hai-jun,et al.Formation mechanism and tectonic types of intracratonic paleo uplifts in the Tarim Basin[J].Earth Science Frontiers,2008,15(2):207-221.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心