乌兰花凹陷原油特征及成因

冯伟平; 王飞宇; 王宗秀; 师玉雷; 江涛; 王予帆; 周洪峰

doi:10.12090/j.issn.1006-6616.2020.26.06.074

乌兰花凹陷原油特征及成因

doi: 10.12090/j.issn.1006-6616.2020.26.06.074

冯伟平^{1, 2, 3, 4,},
王飞宇^4, ,,
王宗秀^{1, 2, 3},
师玉雷⁵,
江涛⁵,
王予帆⁶,
周洪峰⁶

1.
中国地质科学院地质力学研究所, 北京 100081
2.
中国地质调查局油气地质力学重点实验室, 北京 100081
3.
自然资源部古地磁与古构造重建重点实验室, 北京 100081
4.
中国石油大学 (北京) 地球科学学院, 北京 102249
5.
中国石油华北油田分公司勘探开发研究院, 河北任丘 062552
6.
中国石油华北油田分公司二连分公司, 内蒙古锡林浩特 026000

基金项目:

中国地质调查局地质调查项目 DD20190085

国家油气重大专项 2016ZX05007001-003

中国石油华北油田公司合作课题 HBYT-YJY-2017-JS-152

详细信息

作者简介:
冯伟平(1987-), 男, 博士后, 从事石油地质学研究工作。E-mail:fengwp1232@163.com

通讯作者:
王飞宇(1963-), 男, 教授, 主要从事石油地质学方面的教学和科研作用。E-mail:fywang@cup.edu.cn

中图分类号: TE122.1
计量
- 文章访问数: 422
- HTML全文浏览量: 127
- PDF下载量: 12
- 被引次数: 0
出版历程
- 收稿日期: 2020-08-08
- 修回日期: 2020-10-11
- 刊出日期: 2020-12-28

Characteristics and origin of crude oils in the Wulanhua sag

FENG Weiping^{1, 2, 3, 4
,},
WANG Feiyu^{4
, ,},
WANG Zongxiu^{1, 2, 3},
SHI Yulei⁵,
JIANG Tao⁵,
WANG Yufan⁶,
ZHOU Hongfeng⁶

1.
Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China
2.
Key Laboratory of Petroleum Geomechanics, China Geological Survey, Beijing 100081, China
3.
Key Laboratory of Paleomagnetism and Tectonic Reconstruction, Ministry of Natural Resources, Beijing 100081, China
4.
College of Geosciences, China University of Petroleum (Beijing), Beijing 102249, China
5.
Research Institute of Exploration and Development, Huabei Oilfield Company, PetroChina, Renqiu 062552, Hebei, China
6.
Erlian Company, Huabei Oilfield Company, PetroChina, Xilinhaote 026000, Inner Mongolia, China

摘要

摘要: 乌兰花凹陷是二连盆地南部新发现的富油凹陷，对乌兰花凹陷原油物理性质和地球化学性质进行了系统的分析以揭示其特征及来源。原油物理性质显示，乌兰花凹陷原油比重（API gravity）介于20.2°~40.0°之间，主体为正常原油。原油生物标志化合物参数表明，不同构造带之间原油特征存在差异，可以划分为两类原油。一类以土牧尔构造带原油为主，具有低姥值比（Pr/Ph）和C₂₁/C₂₃三环萜烷，相对较高的伽马蜡烷/C₃₁藿烷和规则甾烷/C₃₀藿烷的特征，原油主要为烃源岩在成熟阶段早期的产物，主要以藻类来源为主。另一类原油包括赛乌苏和红井构造带原油，具有高姥值比（Pr/Ph）和C₂₁/C₂₃三环萜烷，相对较低的伽马蜡烷/C₃₁藿烷和规则甾烷/C₃₀藿烷，主要为陆源有机质和藻类有机质混合来源，原油具有更高的成熟度。原油碳同位素和正构烷烃单体烃碳同位素表明这两类原油应是一套烃源岩在不同成熟阶段的产物，原油主要来源于南洼槽阿尔善组烃源岩。阿尔善组烃源岩的非均质性和成熟度导致了两类原油的差异。
- 乌兰花凹陷 /
- 二连盆地 /
- 原油 /
- 地球化学特征 /
- 碳同位素
Abstract: The Wulanhua sag is a newly discovered oil-rich sag in the Erlian basin. The physical and geochemical properties of crude oils in the Wulanhua sag were systematically analyzed to reveal the characteristics and origins. The physical properties of crude oils suggest that the API gravities range from 20.2° to 40.0°, and most are normal crude oil. The biomarker parameters show considerable variation among the oils from different tectonic units, which can be separated into two crude oil families. Crude oil family-I is dominated by oils from the Tumuer tectonic unit, and characterized by low Pr/Ph and C₂₁/C₂₃ TT, and relatively high gammacerane/C₃₁ hopane and regular sterane/C₃₀ hopane. Crude oil family-I is mostly derived from the algal organic matter at low maturity levels. Crude oil family-Ⅱ consists of oils from the Saiwusu and Hongjing tectonic units, which is characterized by high Pr/Ph and C₂₁/C₂₃ TT, and relatively low gammacerane/C₃₁ hopane and regular sterane/C₃₀ hopane. Crude oil family-Ⅱ is mainly derived from the mixed algal and terrigenous organic matter at higher maturity levels. Carbon isotopic compositions of crude oil and individual n-alkanes indicate that these two crude oil families should be the products of the same set of source rocks at different maturity levels, and likely derived from the K₁ba source rock in the southern sub-sag. The factors controlling differences between the two crude oil families include the heterogeneous source rock and its maturation process.
- Wulanhua sag /
- Erlian basin /
- crude oil /
- geochemical characteristics /
- carbon isotope
注释:

责任编辑： 范二平

HTML全文

图 1 乌兰花凹陷构造单元及原油样品位置

图中不同形状的点区分不同构造带的原油，不同颜色区分原油的层位

Figure 1. Tectonic units and crude oil sample locations in the Wulanhua sag

下载: 全尺寸图片幻灯片

图 2 乌兰花凹陷原油API比重随深度的变化

Figure 2. API gravities vary with burial depth for crude oils in the Wulanhua sag

下载: 全尺寸图片幻灯片

图 3 乌兰花凹陷原油API比重与胶质+沥青质的关系

Figure 3. Relationship between API gravity and Rein plus Aphletene content for crude oils in the Wulanhua sag

下载: 全尺寸图片幻灯片

图 4 乌兰花凹陷原油饱和烃气相色谱

Figure 4. Saturated hydrocarbon gas chromatography of crude oils in the Wulanhua sag

下载: 全尺寸图片幻灯片

图 5 乌兰花凹陷原油类异戊二烯烷烃与萜烷参数特征

a—Pr/Ph与伽马蜡烷/C₃₁藿烷的关系图；b—Ph/nC₁₈与Pr/nC₁₇关系图

Figure 5. Isoprenoids and Terpenes parameter characteristics for crude oils in the Wulanhua sag

下载: 全尺寸图片幻灯片

图 6 乌兰花凹陷原油生物标志化合物特征

Figure 6. Biomarker characteristics of crude oils in the Wulanhua Sag

下载: 全尺寸图片幻灯片

图 7 乌兰花凹陷C₂₁/C₂₃三环萜烷值与规则甾烷/C₃₀藿烷的关系

Figure 7. Relationship between C₂₁/C₂₃ tricyclic terpane and regular sterane/C₃₀ hopane for crude oils in the Wulanhua sag

下载: 全尺寸图片幻灯片

图 8 乌兰花凹陷原油C₂₉甾烷20S/(20S+20R)和αββ/(αββ+ααα)关系图

Figure 8. Relationship between C₂₉ sterane 20S/(20S+20R) and αββ/(αββ+ααα) for crude oils in the Wulanhua sag

下载: 全尺寸图片幻灯片

图 9 乌兰花凹陷典型原油饱和烃单体烃碳同位素

Figure 9. Carbon isotopic compositions of individual n-alkanes of typical crude oils in the Wulanhua sag

下载: 全尺寸图片幻灯片

表 1 乌兰花凹陷不同构造带原油物理性质

Table 1. Physical properties of crude oils from different tectonic units in the Wulanhua sag

构造带	层位	密度/ (g/cm³)	API/ (°)	黏度/ (mPa·s)	凝固点/ ℃	硫含量/ %	蜡含量/ %	胶质+沥青质含量/%
赛乌苏	K₁bt¹、K₁ba、Pz	0.8358~0.9330	20.2~37.8	11~49	31~53	0.05~0.69	20.5~30.8	10.5~32.6
土牧尔	K₁bt¹、K₁ba、Pz	0.8451~0.8731	30.6~35.9	13~71	28~35	0.19~0.65	23.2~25.6	18.4~25.5
红格尔	K₁bt¹、K₁ba、Pz	0.825~0.889	27.7~40.0	11~12.47	31~32	-	-	-
红井	K₁bt¹、K₁ba	0.836~0.888	27.8~37.8	30~171	34~35	0.12~0.14	24~25	22~31

下载: 导出CSV

表 2 乌兰花凹陷典型原油碳同位素

Table 2. Carbon isotope values for typical crude oils in the Wulanhua sag

构造带	井号	层位	δ¹³C/‰
赛乌苏	W4	K₁bt¹	-29.2
土牧尔	W5	K₁bt¹	-31.2
土牧尔	W6	K₁bt¹	-31.8

下载: 导出CSV

参考文献(49)

CHENG Z Q, WANG F Y, JIANG T, et al., 2018. Organic facies and hydrocarbon generation characteristics of Lower Cretaceous source rocks in Northeastern Erlian Basin[J]. Xinjiang Petroleum Geology, 39(4):384-392. (in Chinese with English abstract)

DIAO F, WANG J W, CHEN X N, et al., 2020. Correlation of oils and source rocks and genesis of high wax oils in Gaoshangpu area, Nanpu Sag, Bohai Bay Basin[J]. Petroleum Geology & Experiment, 42(1):117-125. (in Chinese with English abstract)

FENG W P, 2018. Analysis of the Early Cretaceous source kitchen of typical sags in the Erlian Basin and their significances[D]. Beijing: China University of Petroleum (Beijing). (in Chinese with English abstract)

FENG W P, WANG F Y, JIANG T, et al., 2020. Origin and accumulation of petroleum in deep precambrian reservoir in Baxian Sag, Bohai Bay Basin, China[J]. Marine and Petroleum Geology, 120:104541. doi: 10.1016/j.marpetgeo.2020.104541

FU J M, SHENG G Y, XU J Y, et al., 1990. Application of biological markers in the assessment of paleoenvironments of Chinese non-marine sediments[J]. Organic Geochemistry, 16(4-6):769-779. doi: 10.1016/0146-6380(90)90116-H

FU S, LIU Z, ZHANG Y M, et al., 2019a. Depositional systems and sequence stratigraphy of mesozoic lacustrine rift basins in NE China:A case study of the Wulan-Hua sag in the southern Erlian Basin[J]. Journal of Asian Earth Sciences, 174:68-98. doi: 10.1016/j.jseaes.2018.11.020

FU S, LIU Z, ZHANG Y M, et al., 2019b. Source rocks geochemistry and oil-source correlation in the Aershan and first member of Tengge'er formations of the Wulan-Hua sag in south of Erlian Basin, Northeastern China[J]. Journal of Petroleum Science and Engineering, 182:106334. doi: 10.1016/j.petrol.2019.106334

GRANTHAM P J, 1986. The occurence of unusual C₂₇ and C₂₉ sterane predominances in two types of Oman crude oil[J]. Organic Geochemistry, 9(1):1-10. doi: 10.1016/0146-6380(86)90077-X

GUO Y Y, LIANG M L, WANG Z X, et al., 2019. Organic geochemistry and mineral composition characteristics in shales of Niutitang Formation, Northwestern Hunan[J]. Journal of Geomechanics, 25(3):392-399. (in Chinese with English abstract) https://journal.geomech.ac.cn/ch/reader/view_abstract.aspx?file_no=20190309&flag=1

JOHNSON C L, GREENE T J, ZINNIKER D A, et al., 2003. Geochemical characteristics and correlation of oil and nonmarine source rocks from Mongolia[J]. AAPG Bulletin, 87(5):817-846. doi: 10.1306/12170201073

LIANG D G, ZENG X Z, WANG X P, et al., 2001. Petroleum origin in the Jizhong depression[M]. Beijing:Petroleum Industry Press. (in Chinese)

LUO M X, XIA Y T, SHAO X M, et al., 2019. Geochemical characteristics and origin of oil from different strata in Shunbei oil and gas field, Tarim Basin[J]. Petroleum Geology & Experiment, 41(6):849-854. (in Chinese with English abstract)

MI J K, ZHANG S C, CHEN J P, et al., 2008. Carbon isotope characteristics and the influencing factors of the oils from Lunnan and Hadexun oil fields[J]. Acta Sedimentologica Sinica, 26(6):1071-1076. (in Chinese with English abstract)

PENG Y, XIONG J Y, XIE J P, et al., 2019. Analysis on accumulation controlling factors of Andesite in Wulanhua Sag of Erlian Basin[J]. Oil & Gas Exploration and Development, 37(4):83-89. (in Chinese with English abstract)

PEPPER A S, CORVI P J, 1995. Simple kinetic models of petroleum formation. Part I:oil and gas generation from kerogen[J]. Marine and Petroleum Geology, 12(3):291-319. doi: 10.1016/0264-8172(95)98381-E

PETERS K E, MOLDOWAN J M, 1983. The biomarker guide:interpreting molecular fossils in petroleum and ancient sediments[M]. Englewood Cliffs:Prentice Hall.

PETERS K E, KONTOROVICH A E, MOLDOWAN J M, et al., 1993. Geochemistry of selected oils and rocks from the central portion of the West Siberian basin, Russia[J]. AAPG Bulletin, 77(5):863-887.

PETERS K E, MOLDOWAN J M, 1993. The biomarker guide. Interpreting molecular fossils in petroleum and ancient sediments[M]. New Jersey:Prentice Hall.

PETERS K E, WALTERS C C, MOLDOWAN J M, 2005. The biomarker guide:volume 2, biomarkers and isotopes in petroleum exploration and earth history[M]. 2nd ed. Cambridge, United Kingdom:Cambridge University Press.

SOFER Z, 1988. Biomarkers and carbon isotopes of oils in the Jurassic Smackover Trend of the Gulf Coast States, U.S.A.[J]. Organic Geochemistry, 12(5):421-432. doi: 10.1016/0146-6380(88)90152-0

SPIGOLON A L D, LEWAN M D, DE BARROS PENTEADO H L, et al., 2015. Evaluation of the petroleum composition and quality with increasing thermal maturity as simulated by hydrous pyrolysis:A case study using a Brazilian source rock with Type I kerogen[J]. Organic Geochemistry, 83-84:27-53. doi: 10.1016/j.orggeochem.2015.03.001

TAO S Z, WANG C Y, DU J G, et al., 2015. Geochemical application of tricyclic and tetracyclic terpanes biomarkers in crude oils of NW China[J]. Marine and Petroleum Geology, 67:460-467. doi: 10.1016/j.marpetgeo.2015.05.030

TEN HAVEN H L, DE LEEUW J W, RULLKÖTTER J, et al., 1987. Restricted utility of the pristane/phytane ratio as a palaeoenvironmental indicator[J]. Nature, 330(6149):641-643. doi: 10.1038/330641a0

TISSOT B P, WELTE D H, 1984. Petroleum formation and occurrence[M]. Berlin, Germany:Springer-Verlag Berlin Heidelberg.

WANG F Y, FENG W P, GUAN J, et al., 2016. Geochemical assessment of lacustrine tight oil and application[J]. Journal of Jilin University (Earth Science Edition), 46(2):388-397. (in Chinese with English abstract)

WANG H, WANG F Y, JIANG S Q, et al., 2017. The oil families and their geochemical characteristics in Sanhantala Sag, Erlian Basin[J]. Lithologic Reservoirs, 29(2):36-43. (in Chinese with English abstract)

WANG X, LI L, YU Y, et al., 2013. Study on Paleogeomorphic restoring and structural development history of Wulanhua Sag, Erlian Basin[J]. China Petroleum Exploration, 18(6):62-68. (in Chinese with English abstract)

XIAO H, LI M J, YANG Z, et al., 2019. Distribution patterns and geochemical implications of C₁₉-C₂₃ tricyclic terpanes in source rocks and crude oils occurring in various depositional environments[J]. Geochimica, 48(2):161-170. (in Chinese with English abstract)

YANG X D, 2018. The source kitchen and accumulation and migration in WuLanhua Sag of Erlian Basin[D]. Beijing: China University of Petroleum (Beijing). (in Chinese with English abstract)

YUAN H Q, LIU C L, XIAO Y, et al., 2016. Sedimentary characteristics of Wulanhua sag in Erlian basin[J]. Progress in Geophysics, 31(5):2239-2245. (in Chinese with English abstract)

ZHANG Y M, CHEN S G, CUI Y Q, et al., 2018. Lithofacies distribution and reservoir prediction of andesite in Wulanhua Sag, Erlian Basin[J]. Lithologic Reservoirs, 30(6):1-9. (in Chinese with English abstract)

ZHOU L, WANG Z X, LI H J, et al., 2018. Accumulation pattern of organic matter in shales of the Lower Cambrian Niutitang Formation, Chuandong-Wulingshan Area[J]. Journal of Geomechanics, 24(5):617-626. (in Chinese with English abstract) https://journal.geomech.ac.cn/ch/reader/view_abstract.aspx?file_no=20180504&flag=1

ZUMBERGE J E, 1987. Prediction of source rock characteristics based on terpane biomarkers in crude oils:A multivariate statistical approach[J]. Geochimica et Cosmochimica Acta, 51(6):1625-1637. doi: 10.1016/0016-7037(87)90343-7

程志强, 王飞宇, 江涛, 等, 2018.二连盆地东北部下白垩统烃源岩有机相与生烃特征[J].新疆石油地质, 39(4):384-392. https://www.cnki.com.cn/Article/CJFDTOTAL-XJSD201804002.htm

刁帆, 王建伟, 陈晓娜, 等, 2020.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, 42(1):117-125. https://www.cnki.com.cn/Article/CJFDTOTAL-SYSD202001017.htm

冯伟平, 2018.二连盆地典型凹陷早白垩世源岩灶分析及意义[D].北京: 中国石油大学(北京).

郭永岩, 梁明亮, 王宗秀, 等, 2019.湘西北地区下寒武统牛蹄塘组页岩有机地球化学与矿物组成特征[J].地质力学学报, 25(3):392-399. https://journal.geomech.ac.cn/ch/reader/view_abstract.aspx?file_no=20190309&flag=1

梁狄刚, 曾宪章, 王雪平, 等, 2001.冀中坳陷油气的生成[M].北京:石油工业出版社.

罗明霞, 夏永涛, 邵小明, 等, 2019.塔里木盆地顺北油气田不同层系原油地球化学特征对比及成因分析[J].石油实验地质, 41(6):849-854. https://www.cnki.com.cn/Article/CJFDTOTAL-SYSD201906009.htm

米敬奎, 张水昌, 陈建平, 等, 2008.哈得逊与轮南地区原油碳同位素特征及影响因素[J].沉积学报, 26(6):1071-1076. https://www.cnki.com.cn/Article/CJFDTOTAL-CJXB200806023.htm

彭宇, 熊骥禹, 谢近平, 等, 2019.二连盆地乌兰花凹陷安山岩成藏主控因素分析[J].天然气与石油, 37(4):83-89. https://www.cnki.com.cn/Article/CJFDTOTAL-TRYS201904020.htm

王飞宇, 冯伟平, 关晶, 等, 2016.湖相致密油资源地球化学评价技术和应用[J].吉林大学学报(地球科学版), 46(2):388-397. https://www.cnki.com.cn/Article/CJFDTOTAL-CCDZ201602008.htm

王浩, 王飞宇, 降栓奇, 等, 2017.二连盆地赛汉塔拉凹陷原油地球化学特征与油族划分[J].岩性油气藏, 29(2):36-43. doi: 10.3969/j.issn.1673-8926.2017.02.005

王鑫, 李玲, 余雁, 等, 2013.二连盆地乌兰花凹陷古地貌恢复及构造发育史研究[J].中国石油勘探, 18(6):62-68. doi: 10.3969/j.issn.1672-7703.2013.06.011

肖洪, 李美俊, 杨哲, 等, 2019.不同环境烃源岩和原油中C₁₉~C₂₃三环萜烷的分布特征及地球化学意义[J].地球化学, 48(2):161-170. https://www.cnki.com.cn/Article/CJFDTOTAL-DQHX201902006.htm

杨雪迪, 2018.二连盆地乌兰花凹陷烃源灶与油气成藏[D].北京: 中国石油大学(北京).

袁红旗, 刘长利, 肖阳, 等, 2016.二连盆地乌兰花凹陷沉积特征研究[J].地球物理学进展, 31(5):2239-2245. https://www.cnki.com.cn/Article/CJFDTOTAL-DQWJ201605049.htm

张以明, 陈树光, 崔永谦, 等, 2018.二连盆地乌兰花凹陷安山岩岩相展布及储层预测[J].岩性油气藏, 30(6):1-9. https://www.cnki.com.cn/Article/CJFDTOTAL-YANX201806001.htm

周磊, 王宗秀, 李会军, 等, 2018.川东-武陵山地区下寒武统牛蹄塘组页岩有机质富集模式[J].地质力学学报, 24(5):617-626. https://journal.geomech.ac.cn/ch/reader/view_abstract.aspx?file_no=20180504&flag=1

被引

资源附件(0)

访问统计