顺北5号走滑断裂带纵向分层结构及其油气地质意义

doi:10.7657/XJPG20210204

摘要/Abstract

摘要：

顺北5号走滑断裂带是顺北地区规模最大的走滑断裂带,具有较强的垂向分层变形特征。走滑断裂带纵向分层结构对于断溶体油气藏控制作用明显。通过对顺北5号走滑断裂带的三维地震资料解释,开展断裂带构造解析,建立其纵向分层结构模型。研究结果表明,顺北5号走滑断裂带垂向上可划分为4层结构,分别为寒武系膏盐岩下断裂系统、寒武系膏盐岩相关断裂系统、奥陶系碳酸盐岩断裂系统和奥陶系—石炭系碎屑岩断裂系统;地层能干性差异是分层变形的基础,区域构造运动的变化引起的走滑断裂分期活动,是分层变形的主要原因;走滑断裂带纵向分层结构对油气控制作用明显,膏盐岩之下断裂控制烃源岩分布,穿膏盐岩层断裂控制油气运移,奥陶系碳酸盐岩断裂控制储集层规模及连通性,晚奥陶世—石炭纪碎屑岩层内断裂控制油气充注。根据走滑断裂活动强度,可以划分为强活动优势叠加型、强活动差异叠加型及弱活动弱叠加型3种。

关键词: 塔里木盆地, 顺北地区, 顺北5号走滑断裂带, 纵向分层结构, 构造样式, 断溶体油气藏

Abstract:

As the largest strike-slip fault zone in Shunbei area, Shunbei No. 5 structure is vertically layered and deformed, and has been proved to play an important role in controlling fault-karst reservoirs. The study carried out the interpretation of 3D seismic data of the Shunbei No.5 strike-slip fault zone, analyzed its structure, and established vertical layered structure models to clarify the controsl of the strike-slip fault zone on reservoir development and hydrocarbon migration and accumulation. The results show that: (1)The Shunbei No.5 strike-slip fault zone can be divided into four layers in the vertical direction, namely a Cambrian sub-gypsum fault system, a Cambrian gypsum-related fault system, an Ordovician carbonate fault system, and an Ordovician-Carboniferous clastic fault system; (2)The difference between stratum mixing competence is the basic condition of the layered deformation, and the staged activities of strike-slip faults caused by the changes of regional tectonic movement is the primary reason for the layered deformation; (3)The vertical layered structure of the strike-slip fault zone controls the hydrocarbon migration and accumulation: the sub-gypsum faults control the distribution of source rocks, the faults penetrating gypsum interval control hydrocarbon migration, the faults inside the Ordovician carbonate rock control the scale and connectivity of reservoirs, and the faults inside the Late Ordovician-Carboniferous clastic rock control hydrocarbon accumulation. According to the strength of the strike-slip fault movement, the strike-slip fault zone can be classified into three categories such as strong activity and dominant superimposition, strong activity and differential superimposition, and weak activity and weak superimposition.

Key words: Tarim basin, Shunbei area, Shunbei No.5 strike-slip fault zone, vertical layered structure, structural style, fault-karst reservoir

中图分类号:

TE122.14

韩俊, 况安鹏, 能源, 黄诚, 李琦琦, 陈平, 申卓仪. 顺北5号走滑断裂带纵向分层结构及其油气地质意义[J]. 新疆石油地质, 2021, 42(2): 152-160.

HAN Jun, KUANG Anpeng, NENG Yuan, HUANG Cheng, LI Qiqi, CHEN Ping, SHEN Zhuoyi. Vertical Layered Structure of Shunbei No.5 Strike-Slip Fault Zone and Its Significance on Hydrocarbon Accumulation[J]. Xinjiang Petroleum Geology, 2021, 42(2): 152-160.

图/表 6

图1

图2

图3

图4

图5

图6

参考文献 18

[1]	漆立新. 塔里木盆地顺托果勒隆起奥陶系碳酸盐岩超深层油气突破及其意义[J]. 中国石油勘探, 2016,21(3):38-51.
	QI Lixin. Oil and gas breakthrough in ultra-deep Ordovician carbonate formations in Shuntuoguole uplift,Tarim basin[J]. China Petroleum Exploration, 2016,21(3):38-51.
[2]	何金有, 邬光辉, 李启明, 等. 塔里木盆地震旦系石油地质特征及勘探方向[J]. 新疆石油地质, 2010,31(5):482-484.
	HE Jinyou, WU Guanghui, LI Qiming, et al. Petroleum geologic characteristics and hydrocarbon exploration objectives of Sinian in Tarim basin[J]. Xinjiang Petroleum Geology, 2010,31(5):482-484.
[3]	黄诚. 叠合盆地内部小尺度走滑断裂幕式活动特征及期次判别:以塔里木盆地顺北地区为例[J]. 石油实验地质, 2019,41(3):379-389.
	HUANG Cheng. Multi-stage activity characteristics of small-scale strike-slip faults in superimposed basin and its identification method:a case study of Shunbei area,Tarim basin[J]. Petroleum Geology ＆ Experiment, 2019,41(3):379-389.
[4]	李山明, 宋全友, 李宝刚, 等. 阿满地区顺北1号走滑断裂带差异性及油气富集规律[J]. 河南科学, 2019,37(5):797-805.
	LI Shanming, SONG Quanyou, LI Baogang, et al. Difference of Shunbei 1 strike-slip fault zone and the regularity of oil and gas accumulation in Aman area[J]. Henan Science, 2019,37(5):797-805.
[5]	马庆佑, 沙旭光, 李玉兰, 等. 塔中顺托果勒区块走滑断裂特征及控油作用[J]. 石油实验地质, 2012,34(2):120-124. doi: 10.11781/sysydz201202120
	MA Qingyou, SHA Xuguang, LI Yulan, et al. Characteristics of strike-slip fault and its controlling on oil in Shuntuoguole region,middle Tarim basin[J]. Petroleum Geology & Experiment, 2012,34(2):120-124.
[6]	邓尚, 李慧莉, 韩俊, 等. 塔里木盆地顺北5号走滑断裂中段活动特征及其地质意义[J]. 石油与天然气地质, 2019,40(5):990-998.
	DENG Shang, LI Huili, HAN Jun, et al. Characteristics of the central segment of Shunbei 5 strike-slip fault zone in Tarim basin and its geological significance[J]. Oil ＆ Gas Geology, 2019,40(5):990-998.
[7]	马庆佑, 曹自成, 蒋华山, 等. 塔河—顺北地区走滑断裂带的通源性及其与油气富集的关系[J]. 海相油气地质, 2020,25(4):1-8.
	MA Qingyou, CAO Zicheng, JIANG Huashan, et al. Source-connectivity of strike slip fault zone and its relationship with oil and gas accumulation in Tahe-Shunbei area,Tarim basin[J]. Marine Origin Petroleum Geology, 2020,25(4):1-8.
[8]	陈菁萍, 赵腾, 肖重阳, 等. 塔里木盆地顺北地区中下奥陶统走滑断裂差异成岩作用[J]. 东北石油大学学报, 2020,44(5):23-34.
	CHEN Jingping, ZHAO Teng, XIAO Chongyang, et al. Differential diagenesis of Lower-Middle Ordovician strike slip faults in Shunbei area of Tarim basin[J]. Journal of Northeast Pteroleum University, 2020,44(5):23-34.
[9]	韩剑发, 苏洲, 陈利新, 等. 塔里木盆地台盆区走滑断裂控储控藏作用及勘探潜力[J]. 石油学报, 2019,40(11):1 296-1 310.
	HAN Jianfa, SU Zhou, CHEN Lixin, et al. Reservoir-controlling and accumulation-controlling of strike-slip faults and exploration potential in the platform of Tarim basin[J]. Acta Petrolei Sinica, 2019,40(11):1 296-1 310.
[10]	马乃拜, 金圣林, 杨瑞召, 等. 塔里木盆地顺北地区断溶体地震反射特征与识别[J]. 石油地球物理勘探, 2019,54(2):398-403.
	MA Naibai, JIN Shenglin, YANG Ruizhao, et al. Seismic response characteristics and identification of fault-karst reservoir in Shunbei area,Tarim basin[J]. Petroleum Geophysical Exploration, 2019,54(2):398-403.
[11]	王玉伟, 陈红汉, 郭会芳, 等. 塔里木盆地顺1走滑断裂带超深储层油气充注历史[J]. 石油与天然气地质, 2019,40(5):972-989.
	WANG Yuwei, CHEN Honghan, GUO Huifang, et al. Hydrocarbon charging history of the ultra-deep reservoir in Shun 1 strike-slip fault zone,Tarim basin[J]. Oil ＆ Gas Geology, 2019,40(5):972-989.
[12]	朱桂良. 塔河油田断溶体油藏气驱井组注气量计算方法[J]. 新疆石油地质, 2020,41(2):248-252.
	ZHU Guiliang. A method to calculate gas injection volume in fault-karst carbonate reservoirs of Tahe oilfield[J]. Xinjiang Petroleum Geology, 2020,41(2):248-252.
[13]	张三, 金强, 赵深圳, 等. 塔河油田海西运动早期奥陶系岩溶地貌[J]. 新疆石油地质, 2020,41(5):527-534.
	ZHANG San, JIN Qiang, ZHAO Shenzhen, et al. Ordovician karst paleogeomorphology during Early Hercynian movement in Tahe oilfield[J]. Xinjiang Petroleum Geology, 2020,41(5):527-534.
[14]	邓尚, 李慧莉, 张仲培, 等. 塔里木盆地顺北及邻区主干走滑断裂带差异活动特征及其与油气富集的关系[J]. 石油与天然气地质, 2018,39(5):878-888.
	DENG Shang, LI Huili, ZHANG Zhongpei, et al. Characteristics of differential activities in major strike-slip fault zones and their control on hydrocarbon enrichment in Shunbei area and its surroundings,Tarim basin[J]. Oil ＆ Gas Geology, 2018,39(5):878-888.
[15]	田小彬, 李强, 王年梅, 等. 塔东隆起带震旦系古油藏的发现及勘探意义[J]. 特种油气藏, 2019,26(4):64-69.
	TIAN Xiaobin, LI Qiang, WANG Nianmei, et al. Discovery of Sinian paleo-oil pool in east Tarim uplift zone and its exploration significance[J]. Special Oil ＆ Gas Reservoirs, 2019,26(4):64-69.
[16]	赵靖舟, 贾承造. 塔里木盆地阿瓦提-满加尔低梁构造特征和形成演化[J]. 地质论评, 2002,48(1):68-73.
	ZHAO Jingzhou, JIA Chengzao. Structural characteristics and tectonic evolution of the Awati-Manjia’er ridge,the Tarim basin[J]. Geological Review, 2002,48(1):68-73.
[17]	陈绪云, 朱秀香, 曹自成, 等. 顺托果勒地区及周缘奥陶系油气藏分布特征与成因浅析[J]. 新疆地质, 2017,35(1):74-78.
	CHEN Xuyun, ZHU Xiuxiang, CAO Zicheng, et al. Distribution characteristics and origin of Ordovician oil and gas reservoirs in Shuntuoguole region and its periphery[J]. Xinjiang Geology, 2017,35(1):74-78.
[18]	李启明, 蔡振忠, 唐子军, 等. 海西运动在塔里木盆地油气成藏中的意义[J]. 新疆石油地质, 2009,30(2):171-174.
	LI Qiming, CAI Zhenzhong, TANG Zijun, et al. Significance of Hercynian movement in hydrocarbon accumulation in Tarim basin[J]. Xinjiang Petroleum Geology, 2009,30(2):171-174.