准噶尔盆地玛湖凹陷玛页1井二叠系风城组全井段岩心剖析与油气地质意义

doi:10.13809/j.cnki.cn32-1825/te.2022.01.018

摘要/Abstract

摘要：

玛湖凹陷是准噶尔盆地重要的生烃凹陷,位于凹陷北部的玛页1井对二叠系风城组进行了全井段连续取心。通过系统描述和剖析岩心特征,结合高密度取样分析、电性及核磁共振分析,揭示出风城组常规和非常规储层并存,碱湖环境造就了这一特殊组合。常规储层以火山岩类、砂砾岩类和砂岩类为主,发育于低位期淡水或低盐度水体;非常规储层以泥岩类、云岩类和粉砂岩类为主,发育于弱水动力条件及强烈蒸发环境。根据四性关系,初步建立甜点评价标准,揭示了玛页1井风城组发育有一个常规“甜点段”和三个非常规“甜点段”,常规“甜点段”发育于风城组一段中部和下部,非常规“甜点段”发育于风城组三段下部、风城组二段,进一步证实了碱湖沉积盆地具有较好的油气勘探潜力。玛页1井风城组岩心剖析,进一步证实了碱湖沉积丰富的油气资源潜力,同时也为玛湖凹陷风城组“铁柱子”的建立奠定坚实基础。

关键词: 岩心剖析, 碱湖沉积, “甜点段”, 页岩油, 风城组, 玛湖凹陷

Abstract:

Mahu sag is an important hydrocarbon-generating sag in Junggar Basin. The whole well section in Fengcheng Formation of Well-MY1, which is located in the north of the sag, has been continuously coring. Therefore, the coexisting characteristics of conventional and unconventional reservoirs in Fengcheng Formation are revealed by the combination of the systematic description and analysis of core characteristics with the analysis of high-density sampling and electrical/nuclear magnetic resonance. The main conventional reservoirs are volcanic rocks, glutenite and sandstone, which is developed in the low stage freshwater or low salinity water body. The main unconventional reservoirs are mud-stone, dolomite and siltstone, which is developed in the weak hydrodynamic conditions and strong evaporation environment. On this basis, with the comprehensive analysis of lithology, electrical properties, physical properties, oil content and other characteristics, it is further confirmed that there is one conventional “sweet spot” and three unconventional “sweet spot” in Fengcheng Formation of Well-MY1, and the conventional “sweet spot” is developed in the middle and lower part of 1st member of Fengcheng Formation, the unconventional “sweet spot” is developed in the lower part of 3rd member and the 2nd member of Fengcheng Formation. The core analysis and features of Fengcheng Formation in Well-MY1 further confirms the hydrocarbon resource potential of alkali lake deposit, and lays a foundation for the establishment of “Standard Lithology Profile” of Fengcheng Formation in Mahu sag.

Key words: core analysis, alkali lake deposit, sweet spot, shale oil, Fengcheng Formation, Mahu depression

中图分类号:

TE122

钱永新,邹阳,赵辛楣等. 准噶尔盆地玛湖凹陷玛页1井二叠系风城组全井段岩心剖析与油气地质意义[J]. 油气藏评价与开发, 2022, 12(1): 204-214.

Yongxin QIAN,Yang ZOU,Xinmei ZHAO, et al. Full core analysis and petroleum geological significance of Permian Fengcheng Formation in Well-MY1, Mahu Sag[J]. Reservoir Evaluation and Development, 2022, 12(1): 204-214.

图/表 10

图1

图2

图3

图4

图5

图6

图7

图8

图9

图10

参考文献 24

[1]	蔡忠贤, 陈发景, 贾振远. 准噶尔盆地的类型和构造演化[J]. 地学前缘, 2000, 7(4):431-440.
	CAI Zhongxian, CHEN Fajing, JIA Zhenyuan. Types and tectonic evolution of Jungger basin[J]. Earth Science Frontiers, 2000, 7(4):431-440.
[2]	王宜林, 张义杰, 王国辉, 等. 准噶尔盆地油气勘探开发成果及前景[J]. 新疆石油地质, 2002, 23(6):449-455.
	WANG Yilin, ZHANG Yijie, WANG Guohui, et al. Achievements and prospect for petroleum exploration and development in Junggar basin[J]. Xinjiang Petroleum Geology, 2002, 23(6):449-455.
[3]	陈新, 卢华复, 舒良树, 等. 准噶尔盆地构造演化分析新进展[J]. 高校地质学报, 2002, 8(3):257-267.
	CHEN Xin, LU Huafu, SHU Liangshu, et al. Study on tectonic evolution of Jungger basin[J]. Geological Journal of China Universities, 2002, 8(3):257-267.
[4]	杨海波, 陈磊, 孔玉华. 准噶尔盆地构造单元划分新方案[J]. 新疆石油地质, 2004, 25(6):686-688.
	YANG Haibo, CHEN Lei, KONG Yuhua. A novel classification of structural units in Junggar basin[J]. Xinjiang Petroleum Geology, 2004, 25(6):686-688.
[5]	曲国胜, 马宗晋, 邵学钟, 等. 准噶尔盆地基底构造与地壳分层结构[J]. 新疆石油地质, 2008, 29(6):669-674.
	QU Guosheng, MA Zongjin, SHAO Xuezhong, et al. Basements and crust structures in Junggar basin[J]. Xinjiang Petroleum Geology, 2008, 29(6):669-674.
[6]	邹阳, 韦盼云, 朱涛, 等. 准噶尔盆地石西油田石南4井区侏罗系头屯河组储层特征及有利区展望[J]. 西北地质, 2020, 53(2):235-243.
	ZOU Yang, WEI Panyun, ZHU Tao, et al. The reservoir characteristics and favorable zone prospect of the Jurassic Toutunhe formation in Well Block Shinan-4,Shixi Oilfield,Junggar Basin[J]. Northwestern Geology, 2020, 53(2):235-243.
[7]	陈刚强, 安志渊, 阿布力米提, 等. 玛湖凹陷及其周缘石炭—二叠系油气勘探前景[J]. 新疆石油地质, 2014, 35(3):259-263.
	CHEN Gangqiang, AN Zhiyuan, Abulimiti, et al. Petroleum exploration prospects of carboniferous-permian in peripheral Mahu sag, Junggar basin[J]. Xinjiang Petroleum Geology, 2014, 35(3):259-263.
[8]	匡立春, 唐勇, 雷德文, 等. 准噶尔盆地二叠系咸化湖相云质岩致密油形成条件与勘探潜力[J]. 石油勘探与开发, 2012, 39(6):657-667.
	KUANG Lichun, TANG Yong, LEI Dewen, et al. Formation conditions and exploration potential of tight oil in the Permian saline lacustrine dolomitic rock, Junggar Basin, NW China[J]. Petroleum Exploration and Development, 2012, 39(6):657-667.
[9]	张善文. 准噶尔盆地哈拉阿拉特山地区风城组烃源岩的发现及石油地质意义[J]. 石油与天然气地质, 2013, 34(2):145-152.
	ZHANG Shanwen. Identification and its petroleum geologic significance of the Fengcheng Formation source rocks in Hala’alt area, the northern margin of Junggar basin[J]. Oil & Gas Geology, 2013, 34(2):145-152.
[10]	阿布力米提, 曹剑, 陈静, 等. 准噶尔盆地玛湖凹陷高成熟油气成因与分布[J]. 新疆石油地质, 2015, 36(4):379-384.
	Abulimiti, CAO Jian, CHEN Jing, et al. Origin and occurrence of highly matured oil and gas in Mahu sag, Junggar Basin[J]. Xinjiang Petroleum Geology, 2015, 36(4):379-384.
[11]	曹剑, 雷德文, 李玉文, 等. 古老碱湖优质烃源岩:准噶尔盆地下二叠统风城组[J]. 石油学报, 2015, 36(7):781-790.
	CAO Jian, LEI Dewen, LI Yuwen, et al. Ancient high-quality alkaline lacustrine source rocks discovered in the lower Permian Fengcheng Formation, Junggar Basin[J]. Acta Petrolei Sinica, 2015, 36(7):781-790.
[12]	支东明, 曹剑, 向宝力, 等. 玛湖凹陷风城组碱湖烃源岩生烃机理及资源量新认识[J]. 新疆石油地质, 2016, 37(5):499-506.
	ZHI Dongming, CAO Jian, XIANG Baoli, et al. Fengcheng alkaline lacustrine source rocks of Lower Permian in Mahu Sag in Junggar Basin: Hydrocarbon generation mechanism and petroleum resources reestimation[J]. Xinjiang Petroleum Geology, 2016, 37(5):499-506.
[13]	许琳, 常秋生, 冯玲丽, 等. 准噶尔盆地玛湖凹陷二叠系风城组页岩油储层特征及控制因素[J]. 中国石油勘探, 2019, 24(5):649-660.
	XU Lin, CHANG Qiusheng, FENG Lingli, et al. The reservoir characteristics and control factors of shale oil in Permian Fengcheng Formation of Mahu sag, Junggar Basin[J]. China Petroleum Exploration, 2019, 24(5):649-660.
[14]	余宽宏, 操应长, 邱隆伟, 等. 准噶尔盆地玛湖凹陷下二叠统风城组含碱层段韵律特征及成因[J]. 古地理学报, 2016, 18(6):1012-1029.
	YU Kuanhong, CAO Yingchang, QIU Longwei, et al. Characteristics of alkaline layer cycles and origin of the lower Permian Fengcheng formation in Mahu sag, Junggar Basin[J]. Journal of Palaeogeography, 2016, 18(6):1012-1029.
[15]	秦志军, 陈丽华, 李玉文, 等. 准噶尔盆地玛湖凹陷下二叠统风城组碱湖古沉积背景[J]. 新疆石油地质, 2016, 37(1):1-6.
	QIN Zhijun, CHEN Lihua, LI Yuwen, et al. Paleo-sedimentary setting of the lower permian Fengcheng alkali lake in Mahu sag, Junggar Basin[J]. Xinjiang Petroleum Geology, 2016, 37(1):1-6.
[16]	余宽宏, 操应长, 邱隆伟, 等. 准噶尔盆地玛湖凹陷早二叠世风城组沉积时期古湖盆卤水演化及碳酸盐矿物形成机理[J]. 天然气地球科学, 2016, 27(7):1248-1263.
	YU Kuanhong, CAO Yingchang, QIU Longwei, et al. Brine evolution of ancient lake and mechanism of carbonate minerals during the sedimentation of early Permian Fengcheng formation in Mahu depression, Junggar Basin, China[J]. Natural Gas Geoscience, 2016, 27(7):1248-1263.
[17]	雷德文, 陈刚强, 刘海磊, 等. 准噶尔盆地玛湖凹陷大油(气)区形成条件与勘探方向研究[J]. 地质学报, 2017, 91(7):1604-1619.
	LEI Dewen, CHEN Gangqiang, LIU Hailei, et al. Study on the forming conditions and exploration fields of the Mahu giant oil (gas) province, Junggar Basin[J]. Acta Geological Sinica, 2017, 91(7):1604-1619.
[18]	王小军, 王婷婷, 曹剑. 玛湖凹陷风城组碱湖烃源岩基本特征及其高效生烃[J]. 新疆石油地质, 2018, 39(1):9-15.
	WANG Xiaojun, WANG Tingting, CAO Jian. Basic characteristics and highly efficient hydrocarbon generation of alkaline-lacustrine source rocks in Fengcheng formation of Mahu Sag[J]. Xinjiang Petroleum Geology, 2018, 39(1):9-15.
[19]	ZHANG G Y, WANG Z Z, GUO X G, et al. Characteristics of lacustrine dolomitic rock reservoir and accumulation of tight oil in the Permian Fengcheng Formation, the western slope of the Mahu Sag, Junggar Basin, NW China[J]. Journal of Asian Earth Sciences, 2019, 178:64-80.
[20]	张元元, 李威, 唐文斌. 玛湖凹陷风城组碱湖烃源岩发育的构造背景和形成环境[J]. 新疆石油地质, 2018, 39(1):48-54.
	ZHANG Yuanyuan, LI Wei, TANG Wenbin. Tectonic setting and environment of alkaline lacustrine source rocks in the Lower Permian Fengcheng Formation of Mahu Sag[J]. Xinjiang Petroleum Geology, 2018, 39(1):48-54.
[21]	张志杰, 袁选俊, 汪梦诗, 等. 准噶尔盆地玛湖凹陷二叠系风城组碱湖沉积特征与古环境演化[J]. 石油勘探与开发, 2018, 45(6):972-984.
	ZHANG Zhijie, YUAN Xuanjun, WANG Mengshi, et al. Alkaline-lacustrine deposition and Paleoenvironmental evolution in Permian Fengcheng Formation at the Mahu Sag, Junggar Basin, NW China[J]. Petroleum Exploration and Development, 2018, 45(6):972-984.
[22]	李威, 张元元, 倪敏婕, 等. 准噶尔盆地玛湖凹陷下二叠统古老碱湖成因探究:来自全球碱湖沉积的启示[J]. 地质学报, 2020, 94(6):1839-1852.
	LI Wei, ZHANG Yuanyuan, NI Minjie, et al. Genesis of alkaline lacustrine deposits in the lower Permian Fengcheng formation of the Mahu sag, northwestern Junggar Basin: insights form a comparison with the worldwide alkaline lacustrine deposits[J]. Acta Geological Sinica, 2020, 94(6):1839-1852.
[23]	姜在兴, 梁超, 吴靖, 等. 含油气细粒沉积岩研究的几个问题[J]. 石油学报, 2013, 34(6):1031-1039.
	JIANG Zaixing, LIANG Chao, WU Jing, et al. Several issues in sedimentological studies on hydrocarbon-bearing fine-grained sedimentary rocks[J]. Acta Petrolei Sinica, 2013, 34(6):1031-1039.
[24]	WARREN J K. Evaporites: A geological compendium[M]. 2nd ed. Cham: Spinger, 2016.