准噶尔盆地中部原油地球化学特征

doi:10.11743/ogg20050411

Abstract

Abstract:

Crude oils in the block 1 and 3 in central Junggar basin have similar geochemical behaviors.The distribution of normal alkanes is complete and shows a single peak,with the main peak carbons ranging in C₁₇～C₂₃ and weak pristane prevalence(the pristane/ phytane ratios ranging from 1.33 to 1.75).The characteristics of biomarkers are:(1) high contents of tricyclic terpane and gammacerane,(2) relatively high contents of pregnane,(3) "ascending" type homosterane distribution,(4) relatively high content of ααα20RC₂₇ sterane,and(5) high contents of β-and γ-carrotanes.The carbon isotope value is generally below-29‰.It is suggested,therefore,that the biological sources of crude oils would mainly be composed of low-grade aquatic organism and thallophyta,and the source rocks would have been deposited in lacustrine and reducing depositional environment.The crude oils are mainly generated from the Permian source rocks.Crude oils in the block 2 and 4 in central Junggar basin have also similar geochemical behaviors.The distribution of normal paraffin hydrocarbons is complete and shows a single peak,with the main peak carbons being C₁₃ and C₁₉ and strong pristane prevalence(the pristane/ phytane ratios ranging from 5.62 to 7.24).The characteristics of biomarkers are(1) very low content of tricyclic terpane,(2) relatively low content or absence of gammacerane,(3) low content of pregnane,(4) very high content of C₂₉ sterane,(5) a "reverse L"-shape homosteranes distribution,and(6) absence of β-and γ-carrotanes.The carbon isotope value is generally over-27‰.Therefore,the biological sources of the crude oils might be mainly composed of higher plants,and the source rocks would have been deposited in oxidizing environment.The crude oils are mainly generated from the Jurassic coal-measure source rocks.

Key words: biomarker, carbon isotope, geochemical behavior, crude oil, central Junggar basin

CLC Number:

TE112.113

Yin Wei, Zheng Herong, Meng Xianlong, You Weifeng. Geochemical behaviors of crude oils in central Junggar basin[J]. Oil & Gas Geology, 2005, 26(4): 461-466,472.

References

[1] 王绪龙,刘得光. 准噶尔盆地腹部马桥凸起侏罗系油源分析[J]. 新疆石油地质,1995,16(1):33～37Wang Xulong,Liu Deguang. Oil source correlation of Jurassic on Maqiao arch in the hinterland of Junggar basin [J]. Xinjiang Petroleum Geology,1995,16(1):33-37
[2] 张年富,张越迁,姚新玉,等.准噶尔盆地莫北凸起油气成藏条件与分布规律[J]. 新疆石油地质,2001,22(2): 103～106Zhang Nianfu, Zhang Yueqian, Yao Xinyu, et al. Formation condition and distribution regularity of oil-gas reservoir of Mobei arch in Junggar basin[J]. Xinjiang Petroleum Geology, 2001, 22(2): 103-106
[3] 王绪龙,康素芳.准噶尔盆地西北缘玛北油田油源分析[J].西南石油学院学报,2001,23(6):6～8Wang Xulong, Kang Sufang. On the oil source of the Mabei oilfield northwest Junggar basin[J]. Journal of Southwest Petroleum Institute,2001,23(6):6-8
[4] 王绪龙,康素芳.准噶尔盆地腹部及西北缘斜坡区原油成因分析[J].新疆石油地质,1999,20(2):108～112Wang Xulong,Kang Sufang. Analysis of crude origin in hinterland and slope of northwestern margin,Junggar basin[J]. Xinjiang Petroleum Geology,1999,20(2):108-112
[5] 廖健德,康素芳,李明河,等. 陆梁油田油藏地球化学研究[J].油气地质与采收率,2003,10(4):29～31Liao Jiande, Kang Sufang, Li Minghe,et al. Geochemistry research of oil reservoirs in Luliang oilfield[J].Petroleum Geology and Recovery Efficiency,2003,10 (4):29-31
[6] 伍新和,向宝力,刘桂凤.准噶尔盆地石西油田油气藏地球化学研究[J].新疆石油地质,2001,22(1):35～37,55Wu Xinhe, Xiang Baoli, Liu Guifeng. Geochemical study for oil-gas pools of Shixi oilfield[J]. Xinjing Petroleum Geology,2001,22(1):35-37,55
[7] 王文军,何禹斌. 准噶尔盆地Z1井油源对比研究[J]. 江汉石油学院学报,2003,25(增刊)(下):24～25Wang Wenjun, He Yubin. Oil source correlation analysis of well Z1 in Junggar basin[J].Journal of Jianghan Petroleum Institute, 2003,25(SⅡ):24-25
[8] 常俊合,李新军,吕红玉,等.东濮凹陷文留潜山构造文古2井原油地球化学特征和油源研究[J].石油与天然气地质,2004,25(1):44～48,69Chang Junhe, Li Xinjun, Lü Hongyu,et al. A study on geochemical characteristics and sources of oil produced from Wengu 2 well in Wenliu buried hill in Dongpu depression[J]. Oil & Gas Geology, 2004,25(1):44-48,69
[9] Peters K E, Moldowan J M.The Biomarker Guide: interpreting molecular fossils in petroleum and ancient sediments[M]. England Prentice :Prentice Hall Inc Press,1993.106,116,123,126
[10] 张枝焕,关强,阳安成.三塘湖盆地煤层与原油地球化学特征对比[J].石油与天然气地质,1999,20(3):207～211Zhang Zhihuan,Guan Qiang,Yang Ancheng. Correlation of geochemical characteristics between coals and crude oils in Santanghu basin[J].Oil ＆ Gas Geology,1999, 20(3):207-211
[11] Fu Jiamo, Sheng Guoying. Application of biological markers in the assessment of paleoenvironments of Chinese non-marine sediments[J].Organic Geochemistry,1990,16:769-779
[12] Wang F Y, He P, Hao S S. Origin of Chinese lacustrine high-wax oils and organic petrology of its source rocks[J].AAPG Bull, 1997,81:1 567
[13] 黄海平,李虹,马刊创,等.大民屯凹陷高蜡油的形成条件[J].石油与天然气地质,2001,22(1):64～67,71Huang Haiping,Li Hong,Ma kanchuang,et al.Formation condition of high wax oils in Damintun sag[J].Oil & Gas Geology,2001,22(1):64-67,71
[14] 陈建平,梁狄刚,王绪龙,等. 彩南油田多源混合原油的油源(二)--原油地球化学特征、分类与典型原油油源[J].石油勘探与开发,2003,30(5):34～38Chen Jianping,Liang Digang, Wang Xulong,et al.Oil-source correlation of mixed oils derived from multiple source rocks in the Cainan oilfield,Junggar basin,Northwest China. PartⅡ:geochemical characteristics, typing and oil sources of typical crude oils[J]. Petroleum Exploration & Development,2003,30(5):34-38
[15] 陈建平,梁狄刚,王绪龙,等.彩南油田多源混合原油的油源(一)--烃源岩基本地球化学特征与生物标志物特征[J].石油勘探与开发,2003,30(4):20～24Chen Jianping, Liang Digang, Wang Xulong, et al.Oil-source identification for the mixed oils derived from multiple source rocks in the Cainan oilfield,Junggar basin,Northwest China.Part I:fundamental geochemical features of source rocks [J].Petroleum Exploration & Development,2003,30(4):20-24
[16] 李素梅,李雪,张庆红,等.牛庄洼陷第三系古沉积环境及其控油作用[J].石油与天然气地质,2003,24(3):269～273Li Sumei, Li Xue, Zhang Qinghong, et al. Paleosedimentary environment in Tertiary and its effect on petroleum distribution in Niuzhuang subsag,Dongying sag[J]. Oil & Gas Geology,2003,24(3):269-273
[17] 张枝焕.准噶尔盆地中部1区块油气成藏过程地球化学研究.2004

Geochemical behaviors of crude oils in central Junggar basin

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

[1]	Jiakai HOU, Zhiyao ZHANG, Shengbao SHI, Guangyou ZHU. Advances in the application of comprehensive two-dimensional gas chromatography in petroleum geochemistry [J]. Oil & Gas Geology, 2024, 45(2): 565-580.
[2]	Yuling SHI, Zulie LONG, Xiangtao ZHANG, Huahua WEN, Xiaonan MA. Exploring the dynamic hydrocarbon accumulation process of the Enping 17 sub-sag in the Enping Sag， Pearl River Mouth Basin [J]. Oil & Gas Geology, 2023, 44(5): 1279-1289.
[3]	Yueyi HUANG, Yuhong LIAO, Chengsheng CHEN, Shuyong SHI, Yunpeng WANG, Ping’an PENG. Numerical simulation and prediction of hydrocarbon phase evolution of wells Shunnan 1 and 4， Tarim Basin [J]. Oil & Gas Geology, 2023, 44(1): 138-149.
[4]	Botong LIU, Peng CHENG, Haifeng GAI, Qin ZHOU, Tengfei LI, Hui TIAN. Infrared spectra evolution of crude oil under pyrolysis and its controlling factors [J]. Oil & Gas Geology, 2023, 44(1): 150-163.
[5]	Hui TIAN, Zijin WU, Haifeng GAI, Xing WANG. Experimental study on late gas generation characteristics of the Middle Devonian sapropelic source rocks of in Northwestern Sichuan Basin [J]. Oil & Gas Geology, 2023, 44(1): 46-54.
[6]	Zhijun Chen, Chunming Zhang, Yonghong He, Zhigang Wen, Fangxia Ma, Wei Li, Yiwen Gao, Yiguo Chen, Huiyuan Zhang, Dongtao Wei. Characteristics and geochemical indication of over-mature source rocks in the Paleozoic， Yingen-Ejinaqi Basin [J]. Oil & Gas Geology, 2022, 43(3): 682-695.
[7]	Xiaoqi Wu, Yingbin Chen, Changbo Zhai, Lingfang Zhou, Xiaojin Zhou, Jun Yang, Yanqing Wang, Xiaobo Song. Geochemical characteristics of bitumen and tracing of gas source in the Middle Triassic Leikoupo Formation， Western Sichuan Depression [J]. Oil & Gas Geology, 2022, 43(2): 407-418.
[8]	Zhiqiang Li, Bo Yang, Jun Wang, Zijun Han, Qingxun Wu. Geochemical characteristics and hydrocarbon generation history of Mesozoic-Cenozoic lacustrine source rocks in the South Yellow Sea Basin，offshore eastern China [J]. Oil & Gas Geology, 2022, 43(2): 419-431.
[9]	Tianjun Li, Zhilong Huang, Xiaobo Guo, Jing Zhao, Yiming Jiang, Sizhe Tan. Geochemical characteristics of crude oil from coal measure source rocks and fine oil-source correlation in the Pinghu Formation in Pingbei slope belt， Xihu Sag， East China Sea Shelf Basin [J]. Oil & Gas Geology, 2022, 43(2): 432-444.
[10]	Deyu Gong, Changyong Zhao, Wenjun He, Long Zhao, Yumei Kong, Liya Ma, Ruiju Wang, Wei’an Wu. Genetic types and exploration potential of natural gas at northwestern margin of Junggar Basin [J]. Oil & Gas Geology, 2022, 43(1): 161-174.
[11]	Erting Li, Jun Jin, Jian Wang, Wanyun Ma, Shijia Chen, Cuimin Liu, Haijing Wang. Geochemical characteristics and genesis of mid-to-shallow natural gas on the periphery of Shawan Sag， Junggar Basin [J]. Oil & Gas Geology, 2022, 43(1): 175-185.
[12]	Wang Yuhan, Ding Weiming, Liu Xuan, Wei Ren, Dong Lin. Lithofacies and causal mechanism of organic matter enrichment in the lower submember of the 3rd member of Shahejie Formation, Bonan Sag,Bohai Bay Basin [J]. Oil & Gas Geology, 2019, 40(5): 1106-1114.
[13]	Chen Zhijun, Ma Fangxia, Xiao Gang, Zhang Yong, Gao Yiwen, Wang Xiaoduo, Han Changchun. Oil-sources rock correlation of Bayingebi Formation in Hari sag, Yingen-Ejinaqi Basin [J]. Oil & Gas Geology, 2019, 40(4): 900-916.
[14]	Tang Guomin, Wang Feilong, Wang Qingbin, Wan Lin, Yan Ge. Genesis and accumulation models of sulfur-rich heavy oil in Laizhou Bay Sag,Bohai Sea [J]. Oil & Gas Geology, 2019, 40(2): 284-293.
[15]	Li Yuhong, Gao Gang, Wang Xingyun, Qu Tong, Han Wei, Gong Zhenqi, Zhang Wen, Dang Wenlong. Characteristics of newly discovered crude oil in the Weihe Basin and its petroleum geological significance [J]. Oil & Gas Geology, 2019, 40(2): 346-353.