天然气地球科学 ›› 2021, Vol. 32 ›› Issue (3): 319333.doi: 10.11764/j.issn.1672-1926.2021.01.013
• 天然气地球化学 • 下一篇
胡国艺1,2(),贺飞1,2,米敬奎1,2,袁懿琳1,2,郭谨豪1,2
Guo-yi HU1,2(),Fei HE1,2,Jing-kui MI1,2,Yi-lin YUAN1,2,Jin-hao GUO1,2
摘要:
川西北地区为近年来四川盆地天然气勘探的热点地区,但时至今日对该区海相烃源岩的地球化学特征和分布仍缺乏全面的研究。选取8条露头剖面对川西北地区下震旦统陡山沱组、上震旦统灯三段、下寒武统筇竹寺组、下志留统龙马溪组、中泥盆统、中二叠统茅口组、上二叠统龙潭组/吴家坪组和大隆组8套海相烃源岩进行了系统的有机地球化学分析,探讨了该区天然气勘探潜力。筇竹寺组优质烃源岩厚度最大,可达80 m,其次是上二叠统龙潭组/吴家坪组和大隆组,厚度可达20~30 m,其他层系优质烃源岩厚度均较薄。从有机质丰度来看,陡山沱组、筇竹寺组、龙马溪组、龙潭组/吴家坪组和大隆组总有机碳含量(TOC)大于3%的发育优质烃源岩,灯三段、中泥盆统、茅口组有机碳含量整体偏低。从下寒武统筇竹寺组至上二叠统大隆组烃源岩干酪根碳同位素值逐渐增高,陡山沱组、灯三段和筇竹寺组烃源岩δ13C值小于-30.0‰,有机质类型以Ⅰ型为主,龙潭组/吴家坪组与大隆组烃源岩δ13C值主要分布在-28.0‰~-26.0‰之间,有机质类型以Ⅱ2型为主,其他介于两者之间。川西北地区除广元矿山梁、朝天二叠系和朝天泥盆系的烃源岩处于成熟阶段之外,大部分地区处于过成熟阶段,主要以生干气为主。多套高丰度烃源岩的发育奠定了川西北地区海相天然气资源丰富,以筇竹寺组和上二叠统烃源岩为气源的含气系统是川西北地区未来天然气勘探的关注领域。
中图分类号:
1 | 陈竹新,李伟,王丽宁,等.川西北地区构造地质结构与深层勘探层系分区[J].石油勘探与开发,2019,46(2):397-408. |
CHEN Z X,LI W,WANG L N,et al. Structural geology and favorable exploration prospect belts in northwestern Sichuan Basin,SW China[J].Petroleum Exploration and Development, 2019,46(2):397-408. | |
2 | 谢增业,杨春龙,董才源,等.四川盆地中泥盆统和中二叠统天然气地球化学特征及成因[J].天然气地球科学,2020,31(4):447-461. |
XIE Z Y,YANG C L,DONG C Y,et al. Geochemical characteristics and genesis of Middle Devonian and Middle Permian natural gas in Sichuan Basin, China[J]. Natural Gas Geoscience, 2020, 31(4):447-461. | |
3 | 腾格尔,秦建中,付小东,等.川西北地区海相油气成藏物质基础——优质烃源岩[J].石油实验地质,2008,30(5):478-483. |
TENGER,QIN J Z,FU X D,et al. Basic conditions of marine hydrocarbon accumulation in northwest Sichuan Basin:High quality source rocks[J]. Petroleum Geology and Experiment, 2008, 30(5):478-483. | |
4 | 赵洁,谢增业,李剑,等.川西北地区泥盆系烃源岩地球化学特征分析[J].中国海上油气,2018,30(2):35-44. |
ZHAO J,XIE Z Y,LI J,et al. Geochemical characteristics analysis of Devonian source rocks in northwestern Sichuan Basin[J]. China Offshore Oil and Gas,2018,30(2):35-44. | |
5 | 蔡开平,王应蓉,杨跃明,等.川西北广旺地区二、三叠系烃源岩评价及气源初探[J].天然气工业,2003,23(2):10-14. |
CAI K P,WANG Y R,YANG Y M,et al. Evaluation of hydrocarbon source rocks in Permian and Triassic at Guangyuan-Wangcang region in northwest Sichuan Basin and a primary discussion on gas source[J].Natural Gas Industry,2003,23(2):10-14. | |
6 | 谢增业,魏国齐,李剑,等.川西北地区发育飞仙关组优质烃源岩[J].天然气工业, 2005,25(9):26-28. |
XIE Z Y,WEI G Q,LI J,et al. Feixianguan Formation excellent hydrocarbon source rocks developed in northwest Sichuan[J]. Natural Gas Industry, 2005,25(9):26-28. | |
7 | 梁狄刚,郭彤楼,陈建平,等.中国南方海相生烃成藏研究的若干新进展(一): 南方四套区域性海相烃源岩的分布[J].海相油气地质,2008,13(2):1-16. |
LIANG D G,GUO T L,CHEN J P,et al. Some progresses on studies of hydrocarbon generation and accumulation in marine sedimentary regions, southern China (Part 1): Distribution of four suits of regional marine source rocks[J]. Marine Origin Petroleum Geology, 2008, 13(2):1-16. | |
8 | 梁狄刚,郭彤楼,陈建平,等.中国南方海相生烃成藏研究的若干新进展(二) :南方四套区域性海相烃源岩的地球化学特征[J].海相油气地质,2009,14(1):1-15. |
LIANG D G,GUO T L,CHEN J P,et al. Some progresses on studies of hydrocarbon generation and accumulation in marine sedimentary regions, southern China (Part 2): Geochemical characteristics of four suits of regional marine source rocks, south China[J]. Marine Origin Petroleum Geology, 2009,14(1):1-15. | |
9 | 梁狄刚,郭彤楼,边立曾,等.中国南方海相生烃成藏研究的若干新进展(三):南方四套区域性海相烃源岩的沉积相及发育的控制因素[J].海相油气地质,2009,14(2):1-19. |
LIANG D G,GUO T L,BIAN L Z,et al. Some progresses on studies of hydrocarbon generation and accumulation in marine sedimentary regions, southern China (Part 3): Controlling factors on the sedimentary facies and development of Palaeozoic marine source rocks[J]. Marine Origin Petroleum Geology, 2009,14(2):1-19. | |
10 | 陈建平,李伟,倪云燕,等.四川盆地二叠系烃源岩及其天然气勘探潜力(一)——烃源岩空间分布特征[J].天然气工业,2018,38(5):1-16. |
CHEN J P,LI W,NI Y Y,et al. The Permian source rocks in the Sichuan Basin and its natural gas exploration potential (Part 1): Spatial distribution of source rocks[J]. Natural Gas Industry, 2018,38(5):1-16. | |
11 | 陈建平,李伟,倪云燕,等.四川盆地二叠系烃源岩及其天然气勘探潜力(二)——烃源岩地球化学特征与天然气资源潜力[J].天然气工业,2018,38(6):33-45. |
CHEN J P,LI W,NI Y Y,et al. The Permian source rocks in the Sichuan Basin and its natural gas exploration potential (Part 2): Geochemical characteristics of source rocks and latent capacity of natural gas resources[J]. Natural Gas Industry, 2018,38(6):33-45. | |
12 | 陈建平,黄第藩,陈建军,等.酒东盆地油气生成和运移[M] .北京:石油工业出版社,1996. |
CHEN J P,HUANG D F,CHEN J J,et al. Petroleum Generation and Migration in Eastern Jiuquan Basin[M] .Beijing: Petroleum Industry Press,1996. | |
13 | 魏国齐,王志宏,李剑,等.四川盆地震旦系、寒武系烃源岩特征、资源潜力与勘探方向[J].天然气地球科学,2017,28(1):1-13. |
WEI G Q,WANG Z H,LI J,et al. Characteristics of source rocks, resource potential and exploration direction of Sinian and Cambrian in Sichuan Basin[J]. Natural Gas Geoscience, 2017,28(1):1-13. | |
14 | 郭旭升,胡东风,刘若冰,等.四川盆地二叠系海陆过渡相页岩气地质条件及勘探潜力[J].天然气工业,2018,38(10):11-18. |
GUO X S,HU D F,LIU R B,et al. Geological conditions and exploration potential of Permian marine-continent transitional facies shale gas in the Sichuan Basin[J]. Natural Gas Industry, 2018, 38(10):11-18. | |
15 | 刘全有,金之钧,高波,等.四川盆地二叠系烃源岩类型与生烃潜力[J].石油与天然气地质,2012,33(1):10-18. |
LIU Q Y,JIN Z J,GAO B,et al. Types and hydrocarbon generation potential of the Permian source rocks in the Sichuan Basin[J]. Oil & Gas Geology, 2012,33(1):10-18. | |
16 | 侯鸿飞.四川龙门山地区泥盆纪地层古生物及沉积相[M].北京:地质出版社,1988. |
HOU H F. Stratigraphic Paleontology and Sedimentary Facies in Devonian Longmenshan Mountains, Sichuan Province[M].Beijing:Geological Publishing House,1988. | |
17 | 翟文亮.龙门山甘溪地区泥盆系碳酸盐与陆源碎屑混合沉积特征[J].地质学刊, 2017, 41(2): 230-238. |
ZHAI W L. Mixed characteristics of carbonate and terrigenous clastic sedimentation in Ganxi Devonian Longmenshan Mountains, Sichuan Province[J] Journal of Geology, 2017, 41(2): 230-238. | |
18 | 李红敬,解习农,黄俊华,等.川西北二叠系茅口组海相优质烃源岩发育控制因素[J].地球科学:中国地质大学学报,2012,37(1):171-180. |
LI H J,XIE X N,HUANG J H,et al. Main factors controlling the formation of excellent marine source rocks in Permian Maokou Formation of northwest Sichuan, China[J]. Earth Science: Journal of China University of Geosciences,2012,37(1):171-180. | |
19 | 胡见义,黄第藩.中国陆相石油地质理论基础[M].北京:石油工业出版社,1991:1-189. |
HU J Y,HUANG D F. The Theoretical Bases of Continental Petroleum Geology in China[M]. Beijing: Petroleum Industry Press, 1991:1-189. | |
20 | 张大江,王大锐,章聆.我国不同地质时期沉积有机质中稳定碳同位素组成特征及其意义[J].科学通报,1991,36(4):302-305. |
ZHANG D J,WANG D Y,ZHANG L. Characteristics of stable isotopic composition of sedimentary organic matter in different geological ages, China[J].Chinese Science Bulletin, 1991,36(4):302-305. | |
21 | 朱扬明,李颖,郝芳,等.四川盆地海、陆相烃源岩有机质稳定碳同位素组成变化及其地球化学意义[J].沉积学报,2017,35(6):1254-1264. |
ZHU Y M,LI Y,HAO F,et al. Compositional variations and geochemical significances of stable carbon isotope for organic matters from marine and terrestrial source rocks in Sichuan Basin[J]. Acta Sedimentologica Sinica,2017,35(6):1254-1264. | |
22 | 黄籍中.干酪根的稳定碳同位素分类依据[J].地质地球化学,1988,16(3):66-68. |
HUANG J Z. Classification basis of stable carbon isotope of kerogen[J]. Geological Geochemistry, 1988,16(3):66-68. | |
23 | 王顺玉,戴鸿鸣,王海清,等.大巴山、米仓山南缘烃源岩特征研究[J].天然气地球科学,2000,11(4-5):4-16. |
WANG S Y,DAI H M,WANG H Q,et al. Source rock feature of the south of the Dabashan and Micangshan[J]. Natural Gas Geoscience, 2000,11(4-5):4-16. | |
24 | 丰国秀,陈盛吉.岩石中沥青反射率与镜质体反射率之间的关系[J].天然气工业,1988,8(3):20-25. |
FENG G X,CHEN S J. Relationship between the reflectance of bitumen and vitrinite in rock[J].Natural Gas Industry,1988,8(3):20-25. | |
25 | 汪泽成,刘静江,姜华,等.中—上扬子地区震旦纪陡山沱组沉积期岩相古地理及勘探意义[J].石油勘探与开发,2019,46(1):39-51. |
WANG Z C,LIU J J,JIANG H,et al. Lithofacies paleogeography and exploration significance of Sinian Doushantuo depositional stage in the middle-upper Yangtze Region, Sichuan Basin, SW China[J]. Petroleum Exploration and Development, 2019,46(1):39-51. |
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