准噶尔盆地沙湾凹陷周缘上古生界天然气地球化学特征及成因研究

李二庭; 靳军; 廖健德; 周波; 马万云; 王海静

doi:10.3969/j.issn.1006-6535.2022.01.003

特种油气藏 >

2022 , Vol. 29 >Issue 1: 15 - 22

DOI: https://doi.org/10.3969/j.issn.1006-6535.2022.01.003

地质勘探

准噶尔盆地沙湾凹陷周缘上古生界天然气地球化学特征及成因研究

李二庭 ,
靳军 ,
廖健德 ,
周波 ,
马万云 ,
王海静

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1.中国石油新疆砾岩油藏实验室,新疆克拉玛依 834000;
2.中国石油新疆油田分公司,新疆克拉玛依 834000

李二庭(1988—),男,高级工程师,2010年毕业于中山大学应用化学专业,2015年毕业于中国科学院广州地球化学研究所地球化学专业,获博士学位,出版著作2部,现从事油气勘探工作。

收稿日期: 2020-09-25

修回日期: 2021-11-20

网络出版日期: 2023-01-10

基金资助

国家油气重大专项“准噶尔前陆冲断带油气成藏、关键勘探技术及新领域目标优选”(2016ZX05003-005)

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Study on Geochemical Characteristics and Genesis of Upper Paleozoic Natural Gas in the Perimeter of Shawan Sag, Junggar Basin

Li Erting ,
Jin Jun ,
Liao Jiande ,
Zhou Bo ,
Ma Wanyun ,
Wang Haijing

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1. PetroChina Xinjiang Conglomerate Reservoir Laboratory, Karamay, Xinjiang 834000, China;
2. PetroChina Xinjiang Oilfield Company, Karamay, Xinjiang 834000, China

Received date: 2020-09-25

Revised date: 2021-11-20

Online published: 2023-01-10

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摘要

针对准噶尔盆地沙湾凹陷周缘上古生界天然气成因与来源认识不清的问题,运用烃源岩热解气模拟实验技术,根据热解气碳同位素分布,结合天然气组分、碳同位素、轻烃组成及伴生原油地球化学特征,揭示了沙湾凹陷周缘上古生界天然气成因与来源。研究结果表明:研究区天然气具有6种成因类型,Ⅰ类天然气来源于佳木河组烃源岩,δ¹³C₂值大于-26.0‰;Ⅱ类天然气为生物气,具有偏负δ¹³C₁值和极高的干燥系数;Ⅲ类天然气来源于佳木河组烃源岩与下乌尔禾组烃源岩混合,干燥系数大于0.95,δ¹³C₂在-26.0‰左右;Ⅳ类天然气来源于下乌尔禾组烃源岩,δ¹³C₂值为-27.5‰～-26.9‰;Ⅴ类天然气主要为下乌尔禾组烃源岩与风城组烃源岩混源,其中,δ¹³C₂值不小于-29.0‰的天然气以下乌尔禾组来源为主,δ¹³C₂值小于-29.0‰的天然气以风城组来源为主;Ⅵ类天然气来源于风城组烃源岩,δ¹³C₂值小于-31.0‰。研究区存在二叠系佳木河组、下乌尔禾组腐殖型和风城组腐泥型3套有效气源岩。研究成果解决了沙湾凹陷周缘上古生界气源问题,可为研究区天然气勘探和成藏研究提供依据。

关键词： 天然气; 热模拟; 上古生界; 沙湾凹陷; 准噶尔盆地

本文引用格式

李二庭 , 靳军 , 廖健德 , 周波 , 马万云 , 王海静 . 准噶尔盆地沙湾凹陷周缘上古生界天然气地球化学特征及成因研究[J]. 特种油气藏, 2022 , 29(1) : 15 -22 . DOI: 10.3969/j.issn.1006-6535.2022.01.003

Abstract

To address the problem of poor understanding of the genesis and source of the Upper Paleozoic natural gas in the perimeter of Shawan Sag, Junggar Basin, the simulation and experiment of source rock pyrolysis gas were conducted to work out the genesis and sources of the Upper Paleozoic natural gas in the perimeter of Shawan Sag based on the carbon isotope distribution of pyrolysis gas, as well as the natural gas components, carbon isotopes, light hydrocarbon composition and geochemical characteristics of associated crude oil. The results showed that there were six types of gas genesis in the study area. Type Ⅰ natural gas was derived from the source rocks of Jiamuhe Formation with a δ¹³C₂ value greater than -26.0‰; Type Ⅱ natural gas was biogas with negative δ¹³C₁ value and extremely high aridity coefficient; Type Ⅲ natural gas was derived from the source rocks of Jiamuhe Formation and the source rocks of Lower Wuerhe Formation, with an aridity coefficient of greater than 0.95, and δ¹³C₂ value of about -26.0‰; Type Ⅳ natural gas was derived from the source rocks of Lower Wuerhe Formation, with δ¹³C₂ value ranging from -27.5‰ to -26.9‰; Type Ⅴ natural gas mainly originated from the source rocks of Lower Wuerhe Formation and Fengcheng Formation, among which, the natural gas with a δ¹³C₂ value of not less than -29.0‰ was from Lower Wuerhe Formation and the natural gas with a δ¹³C₂ value of less than -29.0‰ was mainly from Fengcheng Formation; Type Ⅵ natural gas originated from the source rocks of Fengcheng Formation with a δ¹³C₂ value of less than -31.0‰. There are three types of effective gas source rocks in the study area, including humic source rocks of Permian Jiamuhe Formation, humic source rocks of Lower Wuerhe Formation and sapropelic source rocks of Fengcheng Formation. The study results give a answer to the gas source problem of the Upper Paleozoic in the perimeter of Shawan Sag, and provide a basis for the study on natural gas exploration and reservoir accumulation in the study area.

Key words： natural gas; thermal simulation; Upper Paleozoic; Shawan Sag; Junggar Basin

参考文献

[1] 柳广弟, 张义杰.准噶尔盆地复合油气系统特征、演化与油气勘探方向[J].石油勘探与开发,2002, 29(1):36-39.
LIU Guangdi,ZHANG Yijie.Characteristics and evolution of composite petroleum systems and the exploration strategy in Junggar Basin, northwest China[J].Petroleum Exploration and Development,2002,29(1):36-39.
[2] 陈建平,王绪龙,邓春萍,等.准噶尔盆地烃源岩与原油地球化学特征[J].地质学报,2016,90(1): 37-67.
CHEN Jianping,WANG Xulong,DENG Chunping,et al.Geochemical features of source rocks and crude oil in the Junggar Basin,northwest China[J].Acta Geologica Sinica,2016,90(1):37-67.
[3] 陈建平,查明,周瑶琪,等.准噶尔盆地克拉玛依油田油气运聚期次及成藏研究[J].中国海上油气(地质),2002,16(1):19-22.
CHEN Jianping,ZHA Ming,ZHOU Yaoqi,et al.Hydrocarbon migration stages and accumulation in Karamay Oilfield,Junggar Basin[J].China Offshore Oil and Gas(Geology),2002,16 (1):19-22.
[4] 崔炳富,王海东,康素芳,等.准噶尔盆地车拐地区石油运聚规律研究[J].新疆石油地质,2005,26(1): 36-38.
CUI Bingfu,WANG Haidong,KANG Sufang,et al.On petroleum migration and accumulation of Che-Guai Area in Junggar Basin[J].Xinjiang Petroleum Geology,2005,26 (1):36-38.
[5] 李二庭,靳军,曹剑,等.准噶尔盆地新光地区佳木河组天然气地球化学特征及成因[J].天然气地球科学,2019,30(9):1362-1369.
LI Erting,JIN Jun,CAO Jian,et al.Geochemical characteristics and genesis of natural gas in Jiamuhe Formation in Xinguang Area,Junggar Basin[J].Natural Gas Geoscience,2019,30(9):1362-1369.
[6] PALLASSER R J.Recognising biodegradation in gas/oil accumulations through the δ¹³C compositions of gas components[J].Organic Geochemistry,2000,31(12): 1363-1373.
[7] 孙平安,卞保力,袁云峰,等.准噶尔盆地南缘天然气地球化学与成因研究[J].地球化学,2015,44(3): 275-288.
SUN Ping′an,BIAN Baoli,YUAN Yunfeng,et al.Natural gas in southern Junggar Basin in northwest China: geochemistry and origin[J].Geochimica,2015,44(3): 275-288.
[8] 戴金星.天然气碳氢同位素特征和各类天然气鉴别[J].天然气地球科学,1993,2(3):1-40.
DAI Jinxing.Hydrocarbon isotopic characteristics of natural gas and identification of various natural gases[J].Natural Gas Geoscience,1993,2(3):1-40.
[9] 戴金星,秦胜飞,陶士振,等.中国天然气工业发展趋势和天然气地学理论重要进展[J].天然气地球科学,2005,16(2):127-142.
DAI Jinxing,QIN Shengfei,TAO Shizhen,et al.Developing trends of natural gas industry and the significant progress on natural gas geological theories in China[J].Natural Gas Geoscience,2005,16(2):127-142.
[10] 程克明,金伟明,何忠华,等.陆相原油及凝析油的轻烃单体组成特征及地质意义[J].石油勘探与开发, 1987,14(1):33-34.
CHENG Keming,JIN Weiming,HE Zhonghua,et al.Composition characteristics of light hydrocarbons in continental oil and condensate and their geological significance[J].Petroleum Exploration and Development,1987,14(1):33-34.
[11] 马万云,迪丽达尔·肉孜,李际,等.准噶尔盆地南缘侏罗系烃源岩生烃特征[J].新疆石油地质,2020, 41(1):31-37.
MA Wanyun,DILIDAER Rouzi,LI Ji,et al.Hydrocarbon generation of Jurassic source rocks in the southern margin of Junggar Basin[J].Xinjiang Petroleum Geology,2020,41(1):31-37.
[12] 柳波,贺波,黄志龙,等.准噶尔盆地西北缘不同成因类型天然气来源及其分布规律[J].天然气工业, 2014,34(9):40-46.
LIU Bo,HE Bo,HUANG Zhilong,et al.Natural gas sources and distribution of different genetic types in the northwestern margin of Junggar Basin[J].Natural Gas Industry,2014,34(9):40-46.
[13] 陈建平,王绪龙,邓春萍,等.准噶尔盆地油气源、油气分布与油气系统[J].地质学报,2016,90(3):421-450.
CHEN Jianping,WANG Xulong,DENG Chunping,et al.Oil and gas source,occurrence and petroleum system in the Junggar Basin,northwest China[J].Acta Geologica Sinica,2016,90(3):421-450.
[14] 刁帆, 王建伟, 陈晓娜,等 .渤海湾盆地南堡凹陷高尚堡地区油源对比及高蜡油成因[J].石油实验地质,2020,42(1):117-125.
DIAO Fan, WANG Jianwei, CHEN Xiaona,et al .Correlation of oils and source rocks and genesis of high wax oils in Gaoshangpu Area, Nanpu Sag, Bohai Bay Basin[J].Petroleum Geology & Experiment,2020,42(1):117-125.
[15] 王圣柱,王千军,张关龙,等.准噶尔盆地石炭系烃源岩发育模式及地球化学特征[J].油气地质与采收率,2020,27(4):13-25.
WANG Shengzhu,WANG Qianjun,ZHANG Guanlong,et al.Development mode and geochemical characteristics of Carboniferous source rocks in Junggar Basin[J].Petroleum Geology and Recovery Efficiency,2020,27(4):13-25.
[16] 于洪洲.准北缘哈山地区风城组白云化地层地球化学特征[J]. 东北石油大学学报,2019,43(1):1-9.
YU Hongzhou. Geochemical characteristics of dolomite rocks reservoir of Fengcheng Formation in Hashan Block,the northern Junggar Basin[J]. Journal of Northeast Petroleum University,2019,43(1):1-9.
[17] 王千军,陈林,曹忠祥,等.车排子凸起西翼轻质原油来源分析[J].油气地质与采收率,2020,27(4):26-34.
WANG Qianjun,CHEN Lin,CAO Zhongxiang,et al.Hydrocarbon source analysis of light oil reservoirs in west wing of Chepaizi Uplift[J].Petroleum Geology and Recovery Efficiency,2020,27(4):26-34.
[18] 高泽远,王甘露,金宗玮,等. 黔北凤冈地区牛蹄塘组黑色岩系及方解石脉地化特征及环境意义[J]. 东北石油大学学报,2019,43(5):77-87.
GAO Zeyuan,WANG Ganlu,JIN Zongwei,et al. Localization characteristics and environmental significance of black rock system and calcite veins of Niutitang Formation in Fenggang Area,northern Guizhou[J]. Journal of Northeast Petroleum University,2019,43(5):77-87.
[19] 黄彦杰, 耿继坤, 白玉彬,等 .鄂尔多斯盆地富县地区延长组长₆、长₇段原油地球化学特征及油源对比[J].石油实验地质,2020,42(2):281-288.
HUANG Yanjie, GENG Jikun, BAI Yubin,et al .Geochemical characteristics and oil-source correlation of crude oils in 6th and 7th members of Yanchang Formation, Fuxian Area, Ordos Basin[J].Petroleum Geology & Experiment,2020,42(2):281-288.
[20] 孙雷,莫少武,宗文明,等. 大兴安岭北部拉布达林盆地中生代烃源岩生物标志化合物特征及其意义[J]. 东北石油大学学报,2019,43(6):73-82.
SUN Lei,MO Shaowu,ZONG Wenming,et al.Characteristics and implications of biomarker compounds of the Mesozoic source rock in Labudalin Basin,northern Daxinganling Mountains[J].Journal of Northeast Petroleum University,2019,43(6):73-82.

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