北部湾盆地福山凹陷天然气成因与来源

李美俊;王铁冠;刘 菊;张梅珠;卢 鸿;马庆林;高黎惠

doi:10.11764/j.issn.1672-1926.2007.02.260

天然气地球科学 >

2007 , Vol. 18 >Issue 2: 260 - 265

DOI: https://doi.org/10.11764/j.issn.1672-1926.2007.02.260

天然气地球化学

北部湾盆地福山凹陷天然气成因与来源

展开

(1.中国石油大学石油天然气成藏机理教育部重点实验室，资源与信息学院，北京 102200；
2.中国南方石油勘探开发公司，广东广州 510240；3.中国科学院广州地球化学研究所，广东广州 510640)

李美俊(1972-)，男，博士，讲师，从事有机地球化学和环境化学的科研与教学工作.

收稿日期: 2006-09-27

修回日期: 2007-02-06

网络出版日期: 2008-06-20

基金资助

国家自然科学基金项目“海南岛福山凹陷花场凝析油气田的烃类生成及其伴生非烃气体的成因”(编号：40672093)资助.

收起

GENESIS AND SOURCE OF NATURAL GAS IN THE FUSHAN DEPRESSION, BEIBU WAN BASIN

Expand

(1.Key Laboratory for Hydrocarbon Accumulation Mechanism of the Chinese Ministr y of Education, Earth Sciences and Geoinformatics School, China Petroleum University, Beijing 102249, China; 2.South Oil Exploration and Development Company of PetroChina, Guangzhou, 510640; 3.Guangzhou Institute of Geochemistry,
Chinese Academy of\=Sciences, Guangzhou 510640, China)

Received date: 2006-09-27

Revised date: 2007-02-06

Online published: 2008-06-20

Fold

摘要

利用(δ13C2-δ13C3)-C2/C3(mol/mol)关系、“天然气曲线”和天然气C7-重烃三角图对海南福山凹陷天然气的成因和来源进行了研究，结果表明福山凹陷天然气主要为干酪根生烃高峰到湿气阶段的产物；天然气和该区原油同源，都来自流沙港组Ⅱ-Ⅲ型有机质；天然气没有遭受明显的次生变化，受运移效应的影响也较弱；花场地区天然气主要来自白莲次凹，而Hx4井和H3/4井的天然气可能有来自皇桐次凹的贡献。认为(δ13C2-δ13C3)-C2/C3(mol/mol)关系图和“天然气曲线”是研究天然气成因与来源的有效方法。

关键词： 天然气; 成因; 热降解成因; 碳同位素组成; 福山凹陷

本文引用格式

李美俊;王铁冠;刘菊;张梅珠;卢鸿;马庆林;高黎惠 . 北部湾盆地福山凹陷天然气成因与来源[J]. 天然气地球科学, 2007 , 18(2) : 260 -265 . DOI: 10.11764/j.issn.1672-1926.2007.02.260

Abstract

By using (δ13C2-δ13C3) versus C2/C3(mol/mol) plot and “natural gas plot”, and the ternary diagram of C7-hydrocarbon of natural gas, this paper studies the genesis and source of the natural gas discovered in the Fushan depression, Hainan. It shows that the gaseous hydrocarbons in the Fushan depression are mainly generated by kerogen from the hydrocarbon generating peak stage to the wet gas stage. The gases and associated oils are derived from the same source kitchen of Liushagang formation, which is dominated by type Ⅱ-Ⅲ kerogens. The natural gases had not undergone significant secondary alteration and migration fractionation. The natural gas in the Huachang area is mainly derived from the Bailian subdepression (sag). The gas in HX4 and H3/4 wells, however,may be partly from the Huangtong sub/depression. The (δ13C2-δ13C3) versus C2/C3 (mol/mol) plot and “natural gas plot” are successfully applied to the study of genesis and source of natural gas in the Fushan depression.

Key words： Natural gas; Genesis; Thermogenic; Carbon isotope composition; Fushan depression

参考文献

[ 1 ] 戴金星.中国含油气盆地的无机成因气及其气藏［J］.天然气工业，1995，15(3):22-27.
［2］ Dai J X, Song Y, Dai C S, et al. Geochemistry and accumu- lation of carbon dioxide gases in China［J］. AAPG Bulletin, 1996, 80(10):16 15-1626.
［3］ Dai J X, Yang S F, Chen H L, et al. Geochemistry and occ- urrence of inorganic gas accumulations in Chinese sedimentary basins［J］. Organic Geochemistry, 2005, 36(12):1664-1688.
［4］ Dai J X, Li J, Luo X, et al. Stable carbon isotope composi- tions and source rock geochemistry of the giant gas accumul- ation s in the Ordos Basin, China［J］. Organic Geochemistry, 2005, 36:1617-1635.
［5］James A T. Correlation of natural gas by use of carbon isotop ic distribution between hydrocarbon components［J］. AAPG Bulletin, 1983, 67(7): 1176-1191.
［6］Clayton C. Carbon isotope fractionation during natural gas ge neration from kerogen［J］. Marine and Petroleum Geology, 1991, 8:232-240.
［7］ Berner U, Faber E, Stahl W. Mathematical simulation of the carbon i sotopic fractionation coals and related methane［J］. Chemical Geology (Isotope Geosciences Section), 1994, 94:315-319.
［8］ Chung H M, Gormly J R, Squires R M. Origin of gaseous hydrocarbons in subsurface environments: theoretical considerations of carbon isotope distrib ution［J］. Chemical Geology, 1988,71: 97-103.
［9］ Prinzhofer A, Huc A Y. Genetic and post-genetic molecular and isot opic fractionations in natural gases［J］. Chemical Geology, 1995, 126:281-290.
［10］ Prinzhofer A, Battani A. Gas isotopes Tracing: an important tool for hy drocarbon exploration［J］. Oil & Gas Science and Technolgoy-Rev, IFP, 2003, 58 (2):299-311.
［11］ Lorant F, Prinzhofer A, Behar F, et al. Carbon isotopic and molecula r constrains on the formation and the expulsion of thermogenic hydrocarbon gases ［J］. Chemical Geology (Isotope Geoscience), 1998, 147:249-264.
［12］邱中建，龚再升.中国油气勘探(第四卷)近海油气区［M］.北京: 地质出版社，石油工业出版社，1999.
［13］李思田，林畅松，张启明，等.南海北部大陆边缘盆地幕式裂陷的动力过程及10 Ma 以来的构造事件［J］.科学通报，1998，43(8): 797-810.
［14］丁卫星，王文军，马英俊. 北部湾盆地福山凹陷流沙港组合油气系统特征［J］.海洋石油，2003，23(2):1-6. 
［15］李美俊，王铁冠，卢鸿，等.北部湾盆地福山凹陷流沙港组油气成藏期次与时间［J ］.石油大学学报：自然科学版，2007，18(2)：261-265.
［16］Hao F, Li S T, Zhang Q M. Characteristics and origin of the gas and co ndensate in the Yinggehai Basin, offshore South China Sea: evidence for effects of overpressure on petroleum generation and migration［J］. Organic Geochemistry , 1996, 24(3):363-375.
［17］Huang B J, Xiao X M, Dong W L. Multiphase natural gas migration and ac cumulation and its relationship to diapir structures in the DF1-1 gas field, So uth China Sea［J］. Marine and Petroleum Geology, 2002, 19: 861-872.
［18］何家雄，刘全稳. 南海北部大陆边缘盆地CO₂成因和运聚规律的分析与预测［J］ . 天然气地球科学，2004，15(1):12-19.
［19］李美俊，卢鸿，王铁冠，等.北部湾盆地福山凹陷岩浆活动与CO₂成藏关系［J］. 天然气地球科学，2006，17(1):55-59.
［20］Dai J X. Identification and distribution of various alkanes ga-ses［J］. Science in China, Series D, Earth Sciences, 1992, 35:1246-1257.
［21］Jenden P D, Drozan D J, Kaplan I K. Mixing of thermogenic natural gases in northern Appalachia Basin[J]. AAPG Bulletin, 1993,77:980-998.

Options

文章导航

模态框（Modal）标题

摘要

本文引用格式

Abstract

参考文献