Evaluation Criteria of High-Quality Source Rocks and Its Applications: Taking the Wuerxun Sag in Hailaer Basin as an Example
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摘要: “优质烃源岩控藏”的概念自提出后，正在逐步为勘探家所接受.但什么是优质烃源岩以及如何界定，则还缺乏共识和统一标准.针对这一难题，以海拉尔盆地乌尔逊凹陷为例，利用物质平衡原理计算的源岩排烃量与有机质丰度(TOC)关系曲线的拐点来确定优质烃源岩的有无及其下限标准.结果表明，在TOC较低时，所有源岩的排烃量有限，难以成为优质烃源岩；当TOC升高到某一阀值时，排烃量随着TOC的升高出现明显的增大.这一明显增大的拐点应该为优质烃源岩的下限，TOC高于该值的源岩即为优质烃源岩.虽然优质烃源岩的下限还与有机质的类型、成熟度等因素有关，但为简明实用，综合定量评价认识，推荐TOC＝2.0%作为确定优质油源岩的下限.该标准在研究区的应用表明，区内南二段、南一段优质烃源岩的生油贡献比例达到71%和87%，排油贡献比例更是高达85%和94%，优质源岩的分布与区内油藏的分布也有非常好的对应关系，证明了优质源岩的控藏作用.Abstract: The concept of "high-quality source-rock-control hydrocarbon accumulation" is being accepted gradually by explorers since being put forward. No evaluation criteria based on solid evidences such as the definition of high-quality source rocks and its identification method have been brought forward so far. To tackle this issue, we have identified in this paper, by taking the Wuerxun sag in Hailaer basin as an example, the existence of high-quality source rocks and the lower limit for evaluation of high-quality source rocks, based on the inflection point on the relationship curve of hydrocarbon expulsion (which is calculated by the material balance principle) versus total organic carbon (TOC). The results show that when TOC is low, all source rocks have limited hydrocarbon expulsion, thus they cannot be high-quality source rocks. Nonetheless, when TOC rises to some threshold, hydrocarbon expulsion increases significantly with TOC. This inflection point should be the lower limit of high-quality source rocks: those with TOC greater than the inflection point value are high-quality source rocks. For the sake of simplicity and practicability, it is recommended based on the recognition of quantitative evaluation that TOC=2.0% is regarded as the lower limit of high-quality source rocks, although the lower limit of high-quality source rocks is also related to the type and maturity of the organic matters in the source rocks and so on. The application of such criteria in the research area indicates that the high-quality source rocks in K1n2 and K1n1 contribute 71% and 87% to the oil generated respectively, and 85% and 94% to the oil expelled respectively. The distribution of high-quality source rocks is also closely related to the distribution of hydrocarbon reservoirs in the region, demonstrating that high-quality source rocks control hydrocarbon accumulation.
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图 1 优质烃源岩的概念及其评价标准原理
Fig. 1. Schematic diagram of the concept and evaluation criteria of high-quality source rock
图 2 乌南凹陷烃源岩原始有机质丰度与生烃潜力关系
Fig. 2. Relationship between the original hydrocarbon-generating potential and original abundance of organic matter of source rocks in Wunan depression
图 3 乌北凹陷(Ro=0.6%~1.0%)氯仿沥青“A”与TOC关系
Fig. 3. Relationship between the chloroform bitumen "A" and TOC of source rocks (Ro=0.6%~1.0%) in Wubei depression
图 4 乌北凹陷“A”/TOC与埋深的关系
Fig. 4. Relationship between the buried depth and "A"/TOC of source rocks in Wubei depression
图 5 乌北凹陷单位质量源岩排油量与原始有机质丰度的关系
Fig. 5. Relationship between the oil expellsion amount of per unit mass source rock and the original abundance of organic matter in Wubei depression
图 6 乌南凹陷单位质量源岩排油量与原始有机质丰度的关系
Fig. 6. Relationship between the oil expellsion amount of per unit mass source rock and the original abundance of organic matter in Wunan depression
图 7 乌尔逊凹陷源岩及优质源岩质量
Fig. 7. Mass of source rocks and high-quality source rocks in Wuerxun depression
图 8 乌尔逊、贝尔凹陷源岩及优质源岩生、排油量
Fig. 8. Amount of hydrocarbon generation and expulsion of source rocks and high-quality source rocks in Wuerxun depression and Beier depression
图 9 乌尔逊凹陷南一段优质烃源岩与油藏分布关系
Fig. 9. Relationship between the distributions of high-quality source rock and oil reservoir of K1n1 Member in Wuerxun depression
表 1 乌尔逊凹陷优质烃源岩有机质丰度下限标准
Table 1. Lower limit of the organic matter abundance of high-quality hydrocarbon source rocks in Wuerxun depression
凹陷 层位 丰度下限 TOC0 TOC 乌北 南二段 4.00 3.38 南一上 3.60 2.77 特殊岩性段 4.00 3.20 复合旋回段 3.00 2.27 乌南 南二段 3.30 2.64 南一上 2.60 1.97 特殊岩性段 2.00 1.55 
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[1] Chen, J.F., Zhang, S.C., Sun, S.L., et al., 2006. Main factors influencing marine carbonate source rock formation. Acta Geologica Sinica, 80(3): 467-473 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-DZXE200603021.htm [2] Fu, J.M., Sheng, G.Y., Xu, J.Y., et al., 1991. Application of biomarker compounds in assessment of paleoenvironments of Chinese terrestrial sedciments. Geochimica, 1: 1-12 (in Chinese with English abstract). http://www.en.cnki.com.cn/Article_en/CJFDTOTAL-DQHX199101000.htm [3] He, F., Jin, G.X., Wei, L.H., 2010. Research on high quality source rock in Dongpu depression. Journal of Oil and Gas Technology, 32(4): 185-188 (in Chinese). [4] Hou, D.J., Zhang, S.W., Xiao, J.X., et al., 2008. The excellent source rocks and accumulation of stratigraphic and lithologic traps in the Jiyang depression, Bohai bay basin, China. Earth Science Frontiers, 15(2): 137-146 (in Chinese with English abstract). http://www.cqvip.com/QK/98600X/20082/26712046.html [5] Jin, Q., 2001. Importance and research about effective hydro-carbon source rock. Petroleum Geology and Recovery Efficiency, 8(1): 1-4 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-YQCS200101000.htm [6] Jin, Q., Zha, M., Zhao, L., 2001. Identification of effective source rocks in the Tertiary evaporate facies in the western Qaidam basin. Acta Sedimentologiac Sinica, 19(1): 125-129, 135(in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-CJXB200101021.htm [7] Jin, Q., Zhu, G.Y., Wang, J., 2008. Deposition and distribution of high-potential source rocks in saline lacustrine environments. Journal of China University of Petroleum, 32(4): 19-24 (in Chinese with English abstract). http://www.cnki.com.cn/article/cjfdtotal-sydx200804005.htm [8] Kong, F.X., Zhang, L.Y., Zhou, W., et al., 2000. Geochemical characteristics and hydrocarbon-generating potential of good source rocks in Jiyang depression. Multiple Oil-Gas Field, 7(3): 13-15 (in Chinese). [9] Li, C.F., Xiao, J.F., 1988. The application of trace element to the study on paleosalinities in Shahejie Formation of Dongying basin, Shengli oilfield. Acta Sedimentologica Sinica, 6(4): 100-107 (in Chinese with English abstract). http://www.researchgate.net/publication/311556470_The_application_of_trace_element_to_the_study_on_paleosalinities_in_Shahejie_formation_of_Dongying_basin_Shengli_oil_field [10] Li, R.W., Lin, D.X., Wang, Z.Z., et al., 1986. The new criteria used by judging high-salinity environment. Chinese Science Bulletin, 8: 604-607 (in Chinese). [11] Li, T.Y., He, S., Yang, Z., 2008. The marine source rock formation conditions and control factors. Geological Science and Technology Information, 27(6): 63-71(in Chinese with English abstract). http://www.researchgate.net/publication/284064927_The_marine_source_rock_formation_conditions_and_control_factors [12] Liu, C., Lu, S.F., Huang, W.B., et al., 2011. Improvement of ΔlogR and its application in source rocks evaluation. Petroleum Geology & Oilfield Development Daqing, 30(3): 27-31 (in Chinese with English abstract). http://www.researchgate.net/publication/292793825_Improvement_of_DlogR_and_its_application_in_source_rocks_evaluation [13] Liu, C.L., Xu, J.L., Wang, P.X., 2001. Algal blooms: the primary mechanism in the formation of lacustrine petroleum source rocks. Geological Review, 47(2): 207-210 (in Chinese with English abstract). http://europepmc.org/abstract/CBA/350463 [14] Liu, X.Y., Deng, H.W., Di, Y.X., et al., 2009. High quality source rocks of Nantun Formation in Wuerxun depression, the Hailaer basin. Petroleum Geology & Experiment, 31(1): 68-73 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-SYSD200901015.htm [15] Lu, S.F., 1996. Kinetics theory of hydrocarbon generation from organic matter and its application. Petroleum Industry Press, Beijing, 62-99 (in Chinese). [16] Lu, S.F., Fu, G., Wang, P.Y., 2002. Quantiative research on main controlling factors of gas accumulation. Petroleum Industry Press, Beijing, 106-178 (in Chinese). [17] Lu, S.F., Liu, X.Y., Fu, X.T., et al., 2001. Chemical kinetics study on the generation mechanism of immature to low-mature oil and its initial application. Acta Sedimentologica Sinica, 19(1): 130-135 (in Chinese with English abstract). http://www.researchgate.net/publication/281528458_Chemical_kinetics_study_on_the_generation_mechanism_of_immature_to_low-mature_oil_and_its_initial_application [18] Lu, S.F., Liu, X.Y., Qu, J.Y., et al., 1995. Restoring of original hydrocarbon potential and orginal organic carbon of source roeks in huhehu depression Hailar basin. Journal of Daqing Petroleum Institute, 19(1): 31-34 (in Chinese with English abstract). http://www.cqvip.com/Main/Detail.aspx?id=1706895 [19] Lu, S.F., Li, Z.D., Li, J.J., et al., 2009. Chemical kinetic method of evaluating low-mature gas and its application in Tuha basin. Geochimica, 38(1): 68-74 (in Chinese with English abstract). [20] Lu, S.F., Zhong, N.N., Xue, H.T., et al., 2007. Chemical kinetics study of hydrocarbon of regeneration from organic matter in carbonate source rocks and its significance. Science in China(Ser. D), 50(2): 536-543 (in Chinese). http://www.cqvip.com/QK/60111X/20074/3000277506.html [21] Moldowan, J.M., Seifert, W.K., Gallegos, E.J., 1985. Relationship between petroleum composition and depositional environment of petroleum source rocks. AAPG Bulletin, 69: 1255-1268. doi: 10.1306/AD4628C8-16F7-11D7-8645000102C1865D [22] Pang, X.Q., 1995. Theory of hydrocarbon expulsion threshold and its application. Petroleum Industry Press, Beijing, 8-108, 148-245 (in Chinese). [23] Pang, X.Q., Guo, Y.H., Jiang, F.J., et al., 2009. High-quality source rocks and their distribution prediction in the Bohai sea waters. Oil & Gas Geology, 30(4): 393-398 (in Chinese with English abstract). http://www.cnki.com.cn/Article/CJFDTotal-SYYT200904005.htm [24] Pedersen, T.F., Calvert, S.E., 1990. Anoxia vs. productivity: what controls the formation of organic carbon-rich sediments and sedimentary rocks. AAPG Bulletin, 74(4): 454-466. doi: 10.1306/0C9B232B-1710-11D7-8645000102C1865D [25] Qin, J.Z., Li, Z.M., Liu, B.Q., et al., 2007. The potential of generating heavy oil and solid bitumen of excellent marine source rocks. Petroleum Geology & Experiment, 29(3): 280-285 (in Chinese with English abstract). http://www.researchgate.net/publication/309309450_The_potential_of_generating_heavy_oil_and_solid_bitumen_of_excellent_marine_source_rocks [26] Qin, J.Z., Tenger., Fu, X.D., 2009. Study of forming condition on marine excellent source rocks and its evaluation. Petroleum Geology & Experiment, 31(4): 366-378 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-SYSD200904012.htm [27] Tang, X.H., 1986. The Palaeogene su-per-micro fossil palaeoecology and haloenvironment in Dongpu depression. Chinese Science Bulletin, 4: 298-300 (in Chinese). http://en.cnki.com.cn/Article_en/CJFDTOTAL-WSGT198601005.htm [28] Tenger., Gao, C.L., Hu, K., et al., 2006. High-quality source rocks in the Lower Combination in Southeast Upper-Yangtze area and their hydrocarbon generating potential. Petroleum Geology & Experiment, 28(4): 359-365 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-SYSD200604009.htm [29] Tissot, B.P., Welte, D.H., 1978. Petroleum formation and occurrence: a new approach to oil and gas exploration. Springer-Verlag, Berlin, 201-486. [30] Wang, J., Ma, S.P., Luo, Q., et al., 2009. Recognition and resource potential of source rocks in Raoyang sag of Bohai bay basin. Acta Petrolei Sinica, 30(1): 51-56 (in Chinese with English abstract). [31] Wang, L., Jin, Q., Lin, L.M., et al., 2009. Characteristics of quality Tertiary source rocks in West Qaidam basin. Natural Gas Industry, 29(2): 23-26 (in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=trqgy200902005 [32] Wang, T.G., 1990. A contribution to some sedimentary environmental biomarkers in crude oils and source rocks in China. Geochimica, 3: 256-262 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-DQHX199003008.htm [33] Zhang, L.Y., Kong, X.X., Zhang, C.R., et al., 2003. High quality oil prone source rocks in Jiyang depression. Geochimica, 32 (1): 35-42 (in Chinese with English abstract). http://www.researchgate.net/publication/281604145_High-quality_oil-prone_source_rocks_in_Jiyang_Depression [34] Zhang, S.C., Zhang, B.M., Wang, F.Y., et al., 2001. The two sets of effective source rock layers in Talimu basin—Ⅰthe organic matters characteristics, developing environment and controlling factors. Progress in Nature Science, 11(3): 261-268 (in Chinese with English abstract). [35] Zheng, H.J., Dong, Y.X., Zhu, G.Y., et al., 2007. High-quality source rocks in Nanpu sag. Petroleum Exploration and Development, 34(4): 385-342 (in Chinese with English abstract). http://www.researchgate.net/publication/298602877_High-quality_source_rocks_in_Nanpu_Sag [36] Zhou, J.L., 2009. Prospect of logging evaluation of excellent hydrocarbon source rocks in offshore shelf basins in China. Marine Origin Petroleum Geology, 14(2): 52-59 (in Chinese). http://en.cnki.com.cn/Article_en/CJFDTOTAL-HXYQ200902009.htm [37] Zhu, G.Y., Jin, Q., 2002. Study on source rock heterogeneity—a case of Niu-38 Well in Dongying depression. Acta Petrolei Sinica, 23(5): 34-39 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-SYXB200205006.htm [38] Zhu, G.Y., Jin, Q., Zhang, S.C., et al., 2004. Combination characteristics of lake facies source rock in the Shahejie Formation, Dongying depression. Acta Geologica Sinica, 78(3): 416-427 (in Chinese with English abstract). http://www.researchgate.net/publication/283763883_Combination_characteristics_of_lake_facies_source_rock_in_the_Shahejie_formation_Dongying_depression [39] 陈践发, 张水昌, 孙省利, 等, 2006. 海相碳酸盐岩优质烃源岩发育的主要影响因素. 地质学报, 80(3): 467-473. doi: 10.3321/j.issn:0001-5717.2006.03.021 [40] 傅家谟, 盛国英, 许家友, 等, 1991. 应用生物标志化合物参数判识古沉积环境. 地球化学, 1: 1-12. doi: 10.3321/j.issn:0379-1726.1991.01.001 [41] 何锋, 靳广兴, 魏丽红, 2010. 东濮凹陷优质烃源岩研究意义. 石油天然气学报, 32(4): 185-188. https://www.cnki.com.cn/Article/CJFDTOTAL-JHSX201004042.htm [42] 侯读杰, 张善文, 肖建新, 等, 2008. 济阳坳陷优质烃源岩特征与隐蔽油气藏的关系分析. 地学前缘, 15(2): 137-146. doi: 10.3321/j.issn:1005-2321.2008.02.016 [43] 金强, 查明, 赵磊, 2001. 柴达木盆地西部第三系盐湖相有效生油岩的识别. 沉积学报, 19(1): 125-129, 135. doi: 10.3969/j.issn.1000-0550.2001.01.021 [44] 金强, 2001. 有效烃源岩的重要性及其研究. 油气地质与采收率, 8(1): 1-4. doi: 10.3969/j.issn.1009-9603.2001.01.001 [45] 金强, 朱光有, 王娟, 2008. 咸化湖盆优质烃源岩的形成与分布. 中国石油大学学报(自然科学版), 32(4): 19-24. doi: 10.3321/j.issn:1673-5005.2008.04.004 [46] 孔凡仙, 张林晔, 周文, 等, 2000. 济阳坳陷优质烃源岩层地球化学特征及成烃潜力. 复式油气田, 7(3): 13-15. [47] 李成风, 肖继风, 1988. 用微量元素研究胜利油田东营盆地沙河街组的古盐度. 沉积学报, 6(4): 100-107. https://www.cnki.com.cn/Article/CJFDTOTAL-CJXB198804010.htm [48] 李任伟, 林大兴, 王志珍, 等, 1986. 判断古高盐度环境的新标准. 科学通报, 8: 604-607. https://www.cnki.com.cn/Article/CJFDTOTAL-KXTB198608011.htm [49] 李天义, 何生, 杨智, 2008. 海相优质烃源岩形成环境及其控制因素分析. 地质科技情报, 27(6): 63-71. doi: 10.3969/j.issn.1000-7849.2008.06.012 [50] 刘传联, 徐金鲤, 汪品先, 2001. 藻类勃发—湖相油源岩形成的一种重要机制. 地质论评, 47(2): 207-210. doi: 10.3321/j.issn:0371-5736.2001.02.015 [51] 刘超, 卢双舫, 黄文彪, 等, 2011. ΔlogR技术改进及其在烃源岩评价中的应用. 大庆石油地质与开发, 30(3): 27-31. [52] 刘新颖, 邓宏文, 邸永香, 等, 2009. 海拉尔盆地乌尔逊凹陷南屯组优质烃源岩发育特征. 石油实验地质, 31(1): 68-73. doi: 10.3969/j.issn.1001-6112.2009.01.013 [53] 卢双舫, 1996. 有机质成烃动力学理论及其应用. 北京: 石油工业出版社, 62-99. [54] 卢双舫, 刘晓艳, 曲佳燕, 等, 1995. 海拉尔盆地呼和湖凹陷烃源岩原始生烃潜力和原始有机碳的恢复. 大庆石油学院学报, 19(1): 31-34. https://www.cnki.com.cn/Article/CJFDTOTAL-DQSY501.006.htm [55] 卢双舫, 付广, 王朋岩, 2002. 天然气富集主控因素的定量研究. 北京: 石油工业出版社, 106-178. [56] 卢双舫, 刘晓艳, 付晓泰, 等, 2001. 未熟-低熟油生成的化学动力学理论及其初步应用. 沉积学报, 19(1): 130-135. doi: 10.3969/j.issn.1000-0550.2001.01.022 [57] 卢双舫, 李占东, 李吉君, 等, 2009. 吐哈盆地低熟气评价的化学动力学方法及其应用. 地球化学, 38(1): 68-74. doi: 10.3321/j.issn:0379-1726.2009.01.008 [58] 卢双舫, 钟宁宁, 薛海涛, 等, 2007. 碳酸盐岩有机质二次生烃的化学动力学研究及其意义. 中国科学(D辑), 37(2): 178-184. https://www.cnki.com.cn/Article/CJFDTOTAL-JDXK200702004.htm [59] 庞雄奇, 1995. 排烃门限控油气理论与应用. 北京: 石油工业出版社, 8-108, 148-245. [60] 庞雄奇, 郭永华, 姜福杰, 等, 2009. 渤海海域优质烃源岩及其分布预测. 石油与天然气地质, 30(4): 393-398. doi: 10.3321/j.issn:0253-9985.2009.04.001 [61] 秦建中, 李志明, 刘宝泉, 等, 2007. 海相优质烃源岩形成重质油与固体沥青的潜力分析. 石油实验地质, 29(3): 280-285. doi: 10.3969/j.issn.1001-6112.2007.03.011 [62] 秦建中, 腾格尔, 付小东, 2009. 海相优质烃源层评价与形成条件研究. 石油实验地质, 31(4): 366-378. doi: 10.3969/j.issn.1001-6112.2009.04.010 [63] 唐祥华, 1986. 东濮凹陷早第三纪钙质超微化石古生态及成盐环境. 科学通报, 4: 298-300. https://www.cnki.com.cn/Article/CJFDTOTAL-KXTB198604016.htm [64] 腾格尔, 高长林, 胡凯, 等, 2006. 上扬子东南缘下组合优质烃源岩发育及生烃潜力. 石油实验地质, 28(4): 359-365. doi: 10.3969/j.issn.1001-6112.2006.04.010 [65] 王建, 马顺平, 罗强, 等, 2009. 渤海湾盆地饶阳凹陷烃源岩再认识与资源潜力分析. 石油学报, 30(1): 51-56. https://www.cnki.com.cn/Article/CJFDTOTAL-SYXB200901011.htm [66] 王力, 金强, 林腊梅, 等, 2009. 柴达木盆地西部古近系-新近系优质烃源岩特征. 天然气工业, 29(2): 23-26. doi: 10.3787/j.issn.1000-0976.2009.02.005 [67] 王铁冠, 1990. 试论我国某些原油与生油岩中的沉积环境标志物. 地球化学, 3: 256-262. doi: 10.3321/j.issn:0379-1726.1990.03.009 [68] 张林晔, 孔祥星, 张春荣, 等, 2003. 济阳坳陷下第三系优质烃源岩的发育及其意义. 地球化学, 32(1): 35-42. doi: 10.3321/j.issn:0379-1726.2003.01.005 [69] 张水昌, 张保民, 王飞宇, 等, 2001. 塔里木盆地两套海相有效烃源层—Ⅰ. 有机质性质、发育环境及控制因素. 自然科学进展, 11(3): 261-268. https://www.cnki.com.cn/Article/CJFDTOTAL-ZKJZ200103006.htm [70] 郑红菊, 董月霞, 朱光有, 等, 2007. 南堡凹陷优质烃源岩的新发现. 石油勘探与开发, 34(4): 385-342. doi: 10.3321/j.issn:1000-0747.2007.04.001 [71] 周建林, 2009. 近海陆架盆地优质烃源岩的测井评价展望. 海相油气地质, 14(2): 52-59. doi: 10.3969/j.issn.1672-9854.2009.02.007 [72] 朱光有, 金强, 2002. 烃源岩的非均质性及其研究——以东营凹陷牛38井为例. 石油学报, 23(5): 34-39. https://www.cnki.com.cn/Article/CJFDTOTAL-SYXB200205006.htm [73] 朱光有, 金强, 张水昌, 等, 2004. 东营凹陷沙河街组湖相烃源岩组合特征. 地质学报, 78(3): 416-427. doi: 10.3321/j.issn:0001-5717.2004.03.015 -
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