克拉苏构造带克深区段盐下构造样式
|
摘要
对库车坳陷克拉苏构造带白垩系巴什基奇克组的勘探开发发现,裂缝发育具有上下分带的特征,很可能受背斜中和面的控制,现有的断层相关构造的划分模型难以解释裂缝的垂向分带性,需要重新建立构造样式的划分方案。以克拉苏构造带克深区段为研究区,利用三维地震资料解释,以断背斜翼间角为主要要素、结合断层的组合形态,重新建立克拉苏构造带克深区段的盐下构造样式。研究结果表明,克深区段的构造样式依据翼间角的大小分为平缓褶皱和开阔褶皱两大类;结合断层组合形态,平缓褶皱细分出同冲、背冲和反冲平缓褶皱,开阔褶皱细分出同冲和背冲开阔褶皱。克深断裂以北的构造是开阔褶皱和平缓褶皱组合的叠瓦状断背斜,克深断裂以南的构造均为平缓褶皱断背斜的叠瓦构造。裂缝的分布与翼间角密切相关,开阔褶皱的张裂缝带厚度和分布范围比平缓褶皱大得多,断层对其周缘的裂缝分布存在一定影响。构造样式的重新划分为进一步研究不同构造样式断背斜的裂缝发育特征和成因机制等提供了基础。
The exploration and development practices in the Cretaceous Bashijiqike formation of the Kelasu tectonic belt in Kuqa depression reveal that the fractures are featured with vertical zonation, which are possibly constrained by neutral surfaces of anticlines. It is necessary to rebuild the structural style of the Kelasu tectonic belt because the present model for structural style classification cann't explain the vertical zonation of fractures. Selecting the Keshen section of the Kelasu tectonic belt as the study area, taking the interlimb angle of fold as the main element and combining with the fault combination configuration, the paper rebuilds the subsalt structure styles of the Keshen section in the Kelasu tectonic belt on the basis of 3D seismic interpretation. The results show that the structural styles of the Keshen section can be divided into 2 types such as gentle fold and open fold according to the interlimb angle of fold; according to the fault combination configuration, the gentle fold is further divided into double-thrust gentle fold, back-thrust gentle fold and recoil gentle fold, and the open fold is divided into double-thrust and back-thrust open folds. The structures to the north of the Keshen fault are imbricate fault anticlines made up of open and gentle folds, and the structures to the south of the Keshen fault are imbricate structures of gentle-fold faulted anticline. The distribution of fractures is closely related to the interlimb angle, the thickness and the distribution range of tension fissure zones in the open folds are much larger than those in the gentle folds, and faults has an influence on the distribution of the fractures around them. The classification of the structural style provides a foundation for the further study on the fracture development and genetic mechanism of different structural styles.
The exploration and development practices in the Cretaceous Bashijiqike formation of the Kelasu tectonic belt in Kuqa depression reveal that the fractures are featured with vertical zonation, which are possibly constrained by neutral surfaces of anticlines. It is necessary to rebuild the structural style of the Kelasu tectonic belt because the present model for structural style classification cann't explain the vertical zonation of fractures. Selecting the Keshen section of the Kelasu tectonic belt as the study area, taking the interlimb angle of fold as the main element and combining with the fault combination configuration, the paper rebuilds the subsalt structure styles of the Keshen section in the Kelasu tectonic belt on the basis of 3D seismic interpretation. The results show that the structural styles of the Keshen section can be divided into 2 types such as gentle fold and open fold according to the interlimb angle of fold; according to the fault combination configuration, the gentle fold is further divided into double-thrust gentle fold, back-thrust gentle fold and recoil gentle fold, and the open fold is divided into double-thrust and back-thrust open folds. The structures to the north of the Keshen fault are imbricate fault anticlines made up of open and gentle folds, and the structures to the south of the Keshen fault are imbricate structures of gentle-fold faulted anticline. The distribution of fractures is closely related to the interlimb angle, the thickness and the distribution range of tension fissure zones in the open folds are much larger than those in the gentle folds, and faults has an influence on the distribution of the fractures around them. The classification of the structural style provides a foundation for the further study on the fracture development and genetic mechanism of different structural styles.
引文
[1]贾承造,魏国齐.塔里木盆地构造特征与含油气性[J].科学通报,2002,47(增刊1):1-8.JIA Chengzao,WEI Guoqi. Structural characteristics and petrolifer-ous features of Tarim basin[J]. Chinese Science Bulletin,2002,47(Supp.1):1-8.
[2]能源,谢会文,李勇,等.塔里木盆地库车坳陷中部构造变形样式及分布特征[J].地质科学,2012,47(3):629-639.NENG Yuan,XIE Huiwen,LI Yong,et al. The character of deforma-tion style and its distribution law in the middle part of Kuqa depres-sion,northern margin of Tarim basin,NW China[J]. Chinese Jour-nal of Geology,2012,47(3):629-639.
[3]漆家福,李勇,吴超,等.塔里木盆地库车坳陷收缩构造变形模型若干问题的讨论[J].中国地质,2013,40(1):106-120.QI Jiafu,LI Yong,WU Chao,et al. The interpretation models anddiscussion on the contractive structure deformation of Kuqa depres-sion,Tarim basin[J]. Geology in China,2013,40(1):106-120.
[4]汤良杰,李京昌,余一欣,等.库车前陆褶皱-冲断带盐构造差异变形和分段性特征探讨[J].地质学报,2006,80(3):313-320.TANG Liangjie,LI Jingchang,YU Yixin,et al. Differential salt tec-tonic deformation and segmentation of the Kuqa foreland fold-thrustbelt,Tarim basin,northwest China[J]. Acta Geologica Sinica,2006,80(3):313-320.
[5]段云江,黄少英,李维波,等.用离散元数值模拟法研究克拉苏构造带盐构造变形机理[J].新疆石油地质,2017,38(4):414-419.DUAN Yunjiang,HUANG Shaoying,LI Weibo,et al. Using discreteelement numerical simulation method to study salt tectonic deforma-tion mechanism of Kelasu structural belt[J]. Xinjiang Petroleum Ge-ology,2017,38(4):414-419.
[6]巩磊,曾联波,杜宜静,等.构造成岩作用对裂缝有效性的影响——以库车前陆盆地白垩系致密砂岩储层为例[J].中国矿业大学学报,2015,44(3):514-519.GONG Lei,ZENG Lianbo,DU Yijing,et al. Influences of structuraldiagenesis on fracture effectiveness:a case study of the Cretaceoustight sandstone reservoirs of Kuqa foreland basin[J]. Journal of Chi-na University of Mining&Technology,2015,44(3):514-519.
[7]曾联波,谭成轩,张明利.塔里木盆地库车坳陷中新生代构造应力场及其油气运聚效应[J].中国科学D辑:地球科学,2004,34(增刊1):98-106.ZENG Lianbo,TAN Chengxuan,ZHANG Mingli. Mesozoic and Ce-nozoic tectonic stress field and migration and accumulation effect ofthe oil and gas in Kuqa depression,Tarim basin[J]. Science in Chi-na Series D:Earth Sciences,2004,34(Supp.1):98-106.
[8]周红波,刘永雷,刘军,等.克拉苏构造带褶皱中和面地质特征与纵向位置确定——以克拉苏构造带S构造为例[J].石油地质与工程,2016,30(3):69-72.ZHOU Hongbo,LIU Yonglei,LIU Jun,et al. Geological characteris-tics and vertical location of neutral plane in the Kelasu tectonic belt:taking S structure as an example[J]. Petroleum Geology and Engi-neering,2016,30(3):69-72.
[9]周鹏,唐雁刚,马玉杰,等.运用弹性位移理论预测盐下超深储层裂缝有效性——以克深2,8号构造为例[J].断块油气田,2016,23(1):25-30.ZHOU Peng,TANG Yangang,MA Yujie,et al. Application of elas-tic displacement theory for effective fracture prediction in ultra-deepreservoir:taking Keshen 2 and 8 blocks as examples[J]. Fault-Block Oil&Gas Field,2016,23(1):25-30.
[10] LI Yong,HOU Guiting,HARI K R,et al. The model of fracture de-velopment in the faulted folds:the role of folding and faulting[J].Marine and Petroleum Geology,2018,89:423-251.
[11] SUN Shuai,HOU Guiting,ZHENG Chunfang. Fracture zones con-strained by neutral surfaces in a fault-related fold:insights fromthe Kelasu tectonic zone,Kuqa depression[J]. Journal of Structur-al Geology,2017,104:112-124.
[12]贾东,陈竹新,罗良,等.断层相关褶皱的磁组构与有限应变:川西岷江冲断构造的实例分析[J].自然科学进展,2007,17(2):188-195.JIA Dong,CHEN Zhuxin,LUO Liang,et al. Magnetic fabrics infault-related fold and its relation with finite strain:an example fromMinjiang thrust structures in western Sichuan[J]. Progress in Natu-ral Science,2007,17(2):188-195.
[13] JU Wei,HOU Guiting,ZHANG Bo. Insights into the damage zonesin fault-bend folds from geomechanical models and field data[J].Tectonophysics,2014,610:182-194.
[14]徐振平,谢会文,李勇,等.库车坳陷克拉苏构造带盐下差异构造变形特征及控制因素[J].天然气地球科学,2012,23(6):1 034-1 038.XU Zhenping,XIE Huiwen,LI Yong,et al. Characteristics and con-trolling factors of the subsalt differential structure in the Kelasustructural belt,Kuqa depression[J]. Natural Gas Geoscience,2012,23(6):1 034-1 038.
[15]田作基,宋建国.塔里木库车新生代前陆盆地构造特征及形成演化[J].石油学报,1999,20(4):7-13.TIAN Zuoji,SONG Jianguo. Tertiary structure characteristics andevolution of Kuche foreland basin[J]. Acta Petrolei Sinica,1999,20(4):7-13.
[16]赵文智,许大丰,张朝军,等.库车坳陷构造变形层序划分及在油气勘探中的意义[J].石油学报,1998,19(3):1-5.ZHAO Wenzhi,XU Dafeng,ZHANG Chaojun,et al. Division ofstructural deformed sequence in Kuche depression and signifi-cance for oil and gas exploration[J]. Acta Petrolei Sinica,1998,19(3):1-5.
[17]漆家福,雷刚林,李明刚,等.库车坳陷克拉苏构造带的结构模型及其形成机制[J].大地构造与成矿学,2009,33(1):49-56.QI Jiafu,LEI Ganglin,LI Minggang,et al. Analysis of structuremodel and formation mechanism of Kelasu structure zone,Kuqa de-pression[J]. Geotectonica et Metallogenia,2009,33(1):49-56.
[18]能源,漆家福,谢会文,等.塔里木盆地库车坳陷北部边缘构造特征[J].地质通报,2012,31(9):1 510-1 519.NENG Yuan,QI Jiafu,XIE Huiwen,et al. Structural characteris-tics of northern margin of Kuqa depression,Tarim basin[J]. Geo-logical Bulletin of China,2012,31(9):1 510-1 519.
[19]能源,谢会文,孙太荣,等.克拉苏构造带克深段构造特征及其石油地质意义[J].中国石油勘探,2013,18(2):1-6.NENG Yuan,XIE Huiwen,SUN Tairong,et al. Structural charac-teristics of Keshen segmentation in Kelasu structural belt and itspetroleum geological significance[J]. China Petroleum Explora-tion,2013,18(2):1-6.
[20]李本亮,陈竹新,谢会文,等.冲断构造带深层变形的空间分布规律——以库车坳陷克拉苏构造带为例[J].地质科学,2013,48(1):167-175.LI Benliang,CHEN Zhuxin,XIE Huiwen,et al. Spatial distributionbehavior of deep structures in fold-thrust belt:an example from themiddle segment of Kelasu belt[J]. Chinese Journal of Geology,2013,48(1):167-175.
[21] FREHNER M. The neutral lines in buckle folds[J]. Journal ofStructural Geology,2011,33(10):1 501-1 508.
[22]刘志宏,刘正宏,梁一鸿,等.构造地质学[M].北京:地质出版社,2011:52-54.LIU Zhihong,LIU Zhenghong,LIANG Yihong,et al. Structural ge-ology[M]. Beijing:Geological Publishing House,2011:52-54.
[2]能源,谢会文,李勇,等.塔里木盆地库车坳陷中部构造变形样式及分布特征[J].地质科学,2012,47(3):629-639.NENG Yuan,XIE Huiwen,LI Yong,et al. The character of deforma-tion style and its distribution law in the middle part of Kuqa depres-sion,northern margin of Tarim basin,NW China[J]. Chinese Jour-nal of Geology,2012,47(3):629-639.
[3]漆家福,李勇,吴超,等.塔里木盆地库车坳陷收缩构造变形模型若干问题的讨论[J].中国地质,2013,40(1):106-120.QI Jiafu,LI Yong,WU Chao,et al. The interpretation models anddiscussion on the contractive structure deformation of Kuqa depres-sion,Tarim basin[J]. Geology in China,2013,40(1):106-120.
[4]汤良杰,李京昌,余一欣,等.库车前陆褶皱-冲断带盐构造差异变形和分段性特征探讨[J].地质学报,2006,80(3):313-320.TANG Liangjie,LI Jingchang,YU Yixin,et al. Differential salt tec-tonic deformation and segmentation of the Kuqa foreland fold-thrustbelt,Tarim basin,northwest China[J]. Acta Geologica Sinica,2006,80(3):313-320.
[5]段云江,黄少英,李维波,等.用离散元数值模拟法研究克拉苏构造带盐构造变形机理[J].新疆石油地质,2017,38(4):414-419.DUAN Yunjiang,HUANG Shaoying,LI Weibo,et al. Using discreteelement numerical simulation method to study salt tectonic deforma-tion mechanism of Kelasu structural belt[J]. Xinjiang Petroleum Ge-ology,2017,38(4):414-419.
[6]巩磊,曾联波,杜宜静,等.构造成岩作用对裂缝有效性的影响——以库车前陆盆地白垩系致密砂岩储层为例[J].中国矿业大学学报,2015,44(3):514-519.GONG Lei,ZENG Lianbo,DU Yijing,et al. Influences of structuraldiagenesis on fracture effectiveness:a case study of the Cretaceoustight sandstone reservoirs of Kuqa foreland basin[J]. Journal of Chi-na University of Mining&Technology,2015,44(3):514-519.
[7]曾联波,谭成轩,张明利.塔里木盆地库车坳陷中新生代构造应力场及其油气运聚效应[J].中国科学D辑:地球科学,2004,34(增刊1):98-106.ZENG Lianbo,TAN Chengxuan,ZHANG Mingli. Mesozoic and Ce-nozoic tectonic stress field and migration and accumulation effect ofthe oil and gas in Kuqa depression,Tarim basin[J]. Science in Chi-na Series D:Earth Sciences,2004,34(Supp.1):98-106.
[8]周红波,刘永雷,刘军,等.克拉苏构造带褶皱中和面地质特征与纵向位置确定——以克拉苏构造带S构造为例[J].石油地质与工程,2016,30(3):69-72.ZHOU Hongbo,LIU Yonglei,LIU Jun,et al. Geological characteris-tics and vertical location of neutral plane in the Kelasu tectonic belt:taking S structure as an example[J]. Petroleum Geology and Engi-neering,2016,30(3):69-72.
[9]周鹏,唐雁刚,马玉杰,等.运用弹性位移理论预测盐下超深储层裂缝有效性——以克深2,8号构造为例[J].断块油气田,2016,23(1):25-30.ZHOU Peng,TANG Yangang,MA Yujie,et al. Application of elas-tic displacement theory for effective fracture prediction in ultra-deepreservoir:taking Keshen 2 and 8 blocks as examples[J]. Fault-Block Oil&Gas Field,2016,23(1):25-30.
[10] LI Yong,HOU Guiting,HARI K R,et al. The model of fracture de-velopment in the faulted folds:the role of folding and faulting[J].Marine and Petroleum Geology,2018,89:423-251.
[11] SUN Shuai,HOU Guiting,ZHENG Chunfang. Fracture zones con-strained by neutral surfaces in a fault-related fold:insights fromthe Kelasu tectonic zone,Kuqa depression[J]. Journal of Structur-al Geology,2017,104:112-124.
[12]贾东,陈竹新,罗良,等.断层相关褶皱的磁组构与有限应变:川西岷江冲断构造的实例分析[J].自然科学进展,2007,17(2):188-195.JIA Dong,CHEN Zhuxin,LUO Liang,et al. Magnetic fabrics infault-related fold and its relation with finite strain:an example fromMinjiang thrust structures in western Sichuan[J]. Progress in Natu-ral Science,2007,17(2):188-195.
[13] JU Wei,HOU Guiting,ZHANG Bo. Insights into the damage zonesin fault-bend folds from geomechanical models and field data[J].Tectonophysics,2014,610:182-194.
[14]徐振平,谢会文,李勇,等.库车坳陷克拉苏构造带盐下差异构造变形特征及控制因素[J].天然气地球科学,2012,23(6):1 034-1 038.XU Zhenping,XIE Huiwen,LI Yong,et al. Characteristics and con-trolling factors of the subsalt differential structure in the Kelasustructural belt,Kuqa depression[J]. Natural Gas Geoscience,2012,23(6):1 034-1 038.
[15]田作基,宋建国.塔里木库车新生代前陆盆地构造特征及形成演化[J].石油学报,1999,20(4):7-13.TIAN Zuoji,SONG Jianguo. Tertiary structure characteristics andevolution of Kuche foreland basin[J]. Acta Petrolei Sinica,1999,20(4):7-13.
[16]赵文智,许大丰,张朝军,等.库车坳陷构造变形层序划分及在油气勘探中的意义[J].石油学报,1998,19(3):1-5.ZHAO Wenzhi,XU Dafeng,ZHANG Chaojun,et al. Division ofstructural deformed sequence in Kuche depression and signifi-cance for oil and gas exploration[J]. Acta Petrolei Sinica,1998,19(3):1-5.
[17]漆家福,雷刚林,李明刚,等.库车坳陷克拉苏构造带的结构模型及其形成机制[J].大地构造与成矿学,2009,33(1):49-56.QI Jiafu,LEI Ganglin,LI Minggang,et al. Analysis of structuremodel and formation mechanism of Kelasu structure zone,Kuqa de-pression[J]. Geotectonica et Metallogenia,2009,33(1):49-56.
[18]能源,漆家福,谢会文,等.塔里木盆地库车坳陷北部边缘构造特征[J].地质通报,2012,31(9):1 510-1 519.NENG Yuan,QI Jiafu,XIE Huiwen,et al. Structural characteris-tics of northern margin of Kuqa depression,Tarim basin[J]. Geo-logical Bulletin of China,2012,31(9):1 510-1 519.
[19]能源,谢会文,孙太荣,等.克拉苏构造带克深段构造特征及其石油地质意义[J].中国石油勘探,2013,18(2):1-6.NENG Yuan,XIE Huiwen,SUN Tairong,et al. Structural charac-teristics of Keshen segmentation in Kelasu structural belt and itspetroleum geological significance[J]. China Petroleum Explora-tion,2013,18(2):1-6.
[20]李本亮,陈竹新,谢会文,等.冲断构造带深层变形的空间分布规律——以库车坳陷克拉苏构造带为例[J].地质科学,2013,48(1):167-175.LI Benliang,CHEN Zhuxin,XIE Huiwen,et al. Spatial distributionbehavior of deep structures in fold-thrust belt:an example from themiddle segment of Kelasu belt[J]. Chinese Journal of Geology,2013,48(1):167-175.
[21] FREHNER M. The neutral lines in buckle folds[J]. Journal ofStructural Geology,2011,33(10):1 501-1 508.
[22]刘志宏,刘正宏,梁一鸿,等.构造地质学[M].北京:地质出版社,2011:52-54.LIU Zhihong,LIU Zhenghong,LIANG Yihong,et al. Structural ge-ology[M]. Beijing:Geological Publishing House,2011:52-54.
© 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 |