渤海湾盆地东营凹陷古近系深层油气成藏系统及勘探潜力

doi:10.11743/ogg20210601

摘要/Abstract

摘要：

东营凹陷是渤海湾盆地具有代表性的陆相断陷盆地，深部层系勘探程度低，丰深1、丰深斜101等井获得高产工业油气流，显示了良好的勘探潜力。以东营凹陷古近系深层为对象，在烃源岩分析基础上，结合优质储层成因研究，建立油气成藏模式，明确深层勘探潜力方向。结果表明：东营凹陷古近系深层的沙四下亚段及孔店组构成独立的含油气系统，孔二段、沙四下亚段发育的盐湖（咸化）环境烃源岩具有排烃时期早、排烃时间长、效率高、生排烃周期长的特点，为深层油气成藏系统提供了有利的油源条件；咸化湖泊的多类型沉积体经历了酸-碱交替的成岩流体环境，形成了以次生溶蚀孔隙为主的优质储层，为深层油气成藏提供了良好的储集条件；深层油气成藏系统的油气藏分布与断陷盆地结构、沉积储层发育和成藏动力系统具有良好的对应性，“自源型”及“他源型”油气成藏模式有序分布；缓坡带红层和滩坝砂岩及陡坡带砂砾岩等不同类型油气藏是东营凹陷古近系深层重要的勘探领域。

关键词: 油气成藏系统, 勘探潜力, 深层, 古近系, 东营凹陷, 渤海湾盆地

Abstract:

The Dongying Sag is a representative non-marine faulted depression in the Bohai Bay Basin. Two wells (FSh1 1 and FShX 101) drilled into the deep of the sag were tested with high rates of oil flow, revealing great exploration potential of deeper layers that have been relatively overlooked during years of intensive oil and gas exploration and development in the basin. This study, taking the deep Paleogene strata in the sag as an example, aims to assess the potential through oil and gas accumulation models established on analyses of source rocks and genesis of high-quality reservoirs in the sag. The results show that the Ek (Kongdian Formation) and lower Es⁴ layers in the deep Paleogene constitute on their own an independent petroleum system. The source rocks in the Ek² and lower Es⁴, developed in a saline lake (salinized) environment are characterized by an early, long and efficient hydrocarbon expulsion and a long hydrocarbon generation-expulsion cycle, providing key components for the formation of a deep petroleum system. The multi-type sedimentary facies of the saline lake have experienced alternative modification of acidic and alkaline diagenetic fluids, and formed high-quality reservoirs mainly composed of secondary dissolution pores, which provided good reservoir conditions for the deep hydrocarbon accumulation. The distribution of oil/gas reservoirs in the deep layers corresponds well to the structure of faulted depression, the development of sedimentary reservoirs and the dynamic system of hydrocarbon accumulation. The "indigenous" and "non-indigenous" hydrocarbon accumulation patterns are orderly distributed. Different types of oil/gas reservoirs, such as red beds and beach bar sandstone in gentle slope zone, as well as sandy conglomerate in steep slope zone, are the focus of exploration in the deep Paleogene of Dongying Sag.

Key words: hydrocarbon accumulation system, exploration potential, deep strata, Paleogene, Dongying Sag, Bohai Bay Basin

中图分类号:

TE122.3

宋明水,王永诗,郝雪峰,等. 渤海湾盆地东营凹陷古近系深层油气成藏系统及勘探潜力[J]. 石油与天然气地质, 2021, 42(6): 1243-1254. doi: 10.11743/ogg20210601 Mingshui Song,Yongshi Wang,Xuefeng Hao,et al. Petroleum systems and exploration potential in deep Paleogene of the Dongying Sag, Bohai Bay Basin[J]. Oil & Gas Geology, 2021, 42(6): 1243-1254. doi: 10.11743/ogg20210601

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参考文献 33

1	邹才能, 张光亚, 陶士振, 等. 全球油气勘探领域地质特征、重大发现及非常规石油地质[J]. 石油勘探与开发, 2010, 37 (2): 129- 145.
	Zou Caineng , Zhang Guangya , Tao Shizhen , et al. Geological features, major discoveries and unconventional petroleum geology in the global petroleum exploration[J]. Petroleum Exploration and Development, 2010, 37 (2): 129- 145.
2	贾承造, 庞雄奇. 深层油气地质理论研究进展与主要发展方向[J]. 石油学报, 2015, 36 (12): 1457- 1469. doi: 10.7623/syxb201512001
	Jia Chengzao , Pang Xiongqi . Research processes and main devel-opment directions of deep hydrocarbon geological theories[J]. Acta Petrolei Sinica, 2015, 36 (12): 1457- 1469. doi: 10.7623/syxb201512001
3	何治亮, 马永生, 朱东亚, 等. 深层-超深层碳酸盐岩储层理论技术进展与攻关方向[J]. 石油与天然气地质, 2021, 42 (3): 533- 546.
	He Zhiliang , Ma Yongsheng , Zhu Dongya , et al. Theoretical and technological progress and research direction of deep and ultra-deep carbonate reservoirs[J]. Oil & Gas Geology, 2021, 42 (3): 533- 546.
4	张春林, 姚泾利, 李程善, 等. 鄂尔多斯盆地深层寒武系碳酸盐岩储层特征与主控因素[J]. 石油与天然气地质, 2021, 42 (3): 604- 614.
	Zhang Chunlin , Yao Jingli , Li Chengshan , et al. Characteristics of deep Cambrian carbonate reservoirs in the Ordos Basin and main control factors[J]. Oil & Gas Geology, 2021, 42 (3): 604- 614.
5	马永生, 蔡勋育, 赵培荣. 深层、超深层碳酸盐岩油气储层形成机理研究综述[J]. 地学前缘, 2011, 18 (4): 181- 192.
	Ma Yongsheng , Cai Xunyu , Zhao Peirong . The research status and advances in porosity evolution and diagenesis of deep carbonate reservoir[J]. Earth Science Frontiers, 2011, 18 (4): 181- 192.
6	翟光明, 王世洪, 何文渊. 近十年全球油气勘探热点趋向与启示[J]. 石油学报, 2012, 33 (S1): 14- 19. doi: 10.7623/syxb2012S1003
	Zhai Guangming , Wang Shihong , He Wenyuan . Hotspot trend and enlightenment of global ten-year hydrocarbon exploration[J]. Acta Petrolei Sinica, 2012, 33 (S1): 14- 19. doi: 10.7623/syxb2012S1003
7	王永诗, 李友强. 胜利油区东部探区"十二五"中后期勘探形势与对策[J]. 油气地质与采收率, 2014, 21 (4): 5- 9+111. doi: 10.3969/j.issn.1009-9603.2014.04.002
	Wang Yongshi , Li Youqiang . he exploration situation and countermeasures in the late 12th Five-Year Plan in the eastern area of Shengli oilfield[J]. Petroleum Geology and Recovery Efficiency, 2014, 21 (4): 5- 9+111. doi: 10.3969/j.issn.1009-9603.2014.04.002
8	宋明水. 济阳坳陷勘探形势与展望[J]. 中国石油勘探, 2018, 23 (3): 11- 17. doi: 10.3969/j.issn.1672-7703.2018.03.002
	Song Mingshui . The exploration status and outlook of Jiyang depression[J]. China Petroleum Exploration, 2018, 23 (3): 11- 17. doi: 10.3969/j.issn.1672-7703.2018.03.002
9	吴聿元, 陈贞龙. 延川南深部煤层气勘探开发面临的挑战和对策[J]. 油气藏评价与开发, 2020, 10 (4): 1- 11.
	Wu Yuyuan , Chen Zhenlong . Challenges and countermeasures for exploration and development of deep CBM of South Yanchuan[J]. Reservoir Evaluation and Development, 2020, 10 (4): 1- 11.
10	李阳, 薛兆杰, 程喆, 等. 中国深层油气勘探开发进展与发展方向[J]. 中国石油勘探, 2020, 25 (21): 45- 57.
	Li Yang , Xue Zhaojie , Cheng Zhe , et al. Progress and development directions of deep oil and gas exploration and development in China[J]. China Petroleum Exploration, 2020, 25 (21): 45- 57.
11	宋明水, 李友强. 济阳坳陷油气精细勘探评价及实践[J]. 中国石油勘探, 2020, 25 (1): 93- 101. doi: 10.3969/j.issn.1672-7703.2020.01.009
	Song mingshui , Li Youqiang . Evaluation and practice of fine petroleum exploration in the Jiyang depression[J]. China Petroleum Exploration, 2020, 25 (1): 93- 101. doi: 10.3969/j.issn.1672-7703.2020.01.009
12	张东东, 刘文汇, 王晓锋, 等. 深层油气藏成因类型及其特征[J]. 石油与天然气地质, 2021, 42 (5): 1169- 1180.
	Zhang Dongdong , Liu Wenhui , Wang Xiaofeng , et al. Genetic types and characteristics of deep oil and gas plays[J]. Oil & Gas Geology, 2021, 42 (5): 1169- 1180.
13	徐洪, 杨玉峰. 费尔干纳盆地超深层油气成藏系统[J]. 石油实验地质, 2014, 36 (4): 450- 458.
	Xu Hong , Yang Yufeng . Ultra-deep petroleum accumulation systems in Fergana Basin[J]. Petroleum Geology & Experiment, 2014, 36 (4): 450- 458.
14	达江, 宋岩, 洪峰, 等. 准噶尔盆地南缘前陆盆地油气成藏系统划分研究[J]. 天然气地球科学, 2006, (4): 452- 455. doi: 10.3969/j.issn.1672-1926.2006.04.004
	Da Jiang , Song Yan , Hong Feng , et al. Division of hydrocarbon accumulation system in the southern Junggar foreland basin[J]. Natural Gas Geoscience, 2006, (4): 452- 455. doi: 10.3969/j.issn.1672-1926.2006.04.004
15	刘惠民, 张顺, 包友书, 等. 东营凹陷页岩油储集地质特征与有效性[J]. 石油与天然气地质, 2019, 40 (3): 512- 523.
	Liu Huimin , Zhang Shun , Bao Youshu , et al. Geological characteristics and effectiveness of the shale oil reservoir in Dongying sag[J]. Oil & Gas Geology, 2019, 40 (3): 512- 523.
16	张伟忠, 张云银, 查明, 等. 渤海湾盆地东营凹陷扭张断裂成因模式及控藏作用[J]. 石油与天然气地质, 2019, 40 (2): 262- 270.
	Zhang Weizhong , Zhang Yunyin , Zha Ming , et al. Genetic model of transtensional faults in Dongying Depression, Bohai Bay Basin, and its controls over hydrocarbon accumulation[J]. Oil & Gas Geology, 2019, 40 (2): 262- 270.
17	王永诗, 郝雪峰, 胡阳. 富油凹陷油气分布有序性与富集差异性-以渤海湾盆地济阳坳陷东营凹陷为例[J]. 石油勘探与开发, 2018, 45 (5): 785- 794.
	Wang Yongshi , Hao Xuefeng , Hu Yang . Orderly distribution and differential enrichment of hydrocarbon in oil-rich sags: A case study of Dongying sag, Jiyang depression, Bohai bay basin, East China[J]. Petroleum Exploration and Development, 2018, 45 (5): 785- 794.
18	王永诗, 王勇, 朱德顺, 等. 东营凹陷北部陡坡带砂砾岩优质储层成因[J]. 中国石油勘探, 2016, 21 (2): 28- 36. doi: 10.3969/j.issn.1672-7703.2016.02.004
	Wang Yongshi , Wang Yong , Zhu Deshun , et al. Genetic mechanism of high-quality glutenite reservoirs at the steep slope in northern Dongying sag[J]. China Petroleum Exploration, 2016, 21 (2): 28- 36. doi: 10.3969/j.issn.1672-7703.2016.02.004
19	Laskar J , Robutel P , Joutel F , et al. A long term numerical solution for the insolation quantities of the Earth[J]. Astronomy and Astrophysics, 2004, 428 (1): 261285.
20	Laskar J , Fienga A , Gastineau M , et al. La2010:a new orbital solution for the long term motion of the Earth[J]. Astronomy and Astrophysics, 2011, 532, 17.
21	吴欣松, 郭娟娟, 黄永建, 等. 松辽盆地晚白垩世古气候变化的测井替代指标[J]. 古地理学报, 2011, 13 (1): 103110.
	Wu Xinsong , Guo Juanjuan , Huang Yongjian , et al. Well logging proxy of the Late Cretaceous palaeoclimate change in Songliao Basin[J]. Journal of Palaeogeography, 2011, 13 (1): 103- 110.
22	黄春菊. 旋回地层学和天文年代学及其在中生代的研究现状[J]. 地学前缘, 2014, 21 (2): 48- 66.
	Huang Chunju . The current status of cycostratigraphy and astrochronology in the Mesozoic[J]. Earth Frontiers, 2014, 21 (2): 48- 66.
23	Gradstein F M , Ogg J G , Hilgen F J . The geologic time scale[J]. Newsletters on Stratigraphy, 2012, 45 (2): 171- 188. doi: 10.1127/0078-0421/2012/0020
24	刘庆, 张林晔, 王茹, 等. 湖相烃源岩原始有机质恢复与生排烃效率定量研究-以东营凹陷古近系沙河街组四段优质烃源岩为例[J]. 地质论评, 2014, 60 (4): 877- 883.
	Liu Qing , Zhang Linye , Wang Ru , et al. Recovery of original organic matter content and quantitatively study of generation and expulsion efficiency for lacustrine hydrocarbon source rocks: A case study of the excellent source rocks of the Palaeocene E_2-3s⁴, Dongying Sag[J]. Geological Review, 2014, 60 (4): 877- 883.
25	巢前, 蔡进功, 周祺盛, 等. 东营凹陷沙河街组Es3/Es4烃源岩热解特征及生烃差异研究[J]. 高校地质学报, 2017, 23 (4): 688- 696.
	Chao Qian , Cai Jingong , Zhou Qisheng , et al. Characteristics of rock-eval pyrolysis and hydrocarbon generation for source rocks of Eocene Shahejie third and fourth members, Dongying depression[J]. Geological Journal of China Universities, 2017, 23 (4): 688- 696.
26	赵悦, 蔡进功, 谢奥博, 等. 淡水和咸水湖相泥质烃源岩不同赋存态有机质的地球化学特征[J]. 石油实验地质, 2018, 40 (5): 705- 715.
	Zhao Yue , Cai Jingong , Xie Aobo , et al. Geochemical investigation of organic matter of various occurrences released via sequential treatment of two argillaceous source rock samples from fresh and saline lacustrine environments[J]. Petroleum Geology & Experiment, 2018, 40 (5): 705- 715.
27	李继岩, 宋国奇, 王晓蕾, 等. 不同沉积环境形成的储层成岩差异性研究-以东营凹陷王家岗地区红层与博兴洼陷灰层滩坝为例[J]. 天然气地球科学, 2015, 26 (2): 269- 276.
	Li Jiyan , Song Guoqi , Wang Xiaolei , et al. Study on the differences of diagenetic evolution under different sedimentary environment: take an example of the Red-beds of Wangjiagang, Dongying sag and oligocene gray-beds beach-bar of Boxing sag[J]. Natural Gas Geoscience, 2015, 26 (2): 269- 276.
28	陈波, 张顺存, 孙国强, 等. 准噶尔盆地车拐斜坡区储层碳酸盐胶结物碳氧同位素特征及其成因[J]. 油气藏评价与开发, 2020, 10 (4): 101- 106.
	Chen Bo , Zhang Shuncun , Sun Guoqiang , et al. Characteristics and formation mechanism of Carbonate cementation in Che-Guai slope area, Junggar Basin[J]. Reservoir Evaluation and Development, 2020, 10 (4): 101- 106.
29	李继岩. 渤海湾盆地东营凹陷东段红层储层成岩环境时空演化及成岩孔隙演化[J]. 石油与天然气地质, 2017, 38 (1): 90- 97.
	Li Jiyan . Temporal-spatial evolution of diagenetic environment and diagenesis pore evolutionary process of red beds in the eastern Dongying sag, Bohai bay basin[J]. Oil & Gas Geology, 2017, 38 (1): 90- 97.
30	刘鑫金, 刘惠民, 宋国奇, 等. 济阳坳陷东营三角洲前缘斜坡重力流成因砂体特征及形成条件[J]. 中国石油大学学报(自然科学版), 2017, 41 (4): 36- 45. doi: 10.3969/j.issn.1673-5005.2017.04.005
	Liu Xinjin , Liu Huimin , Song Guoqi , et al. Characteristics and formation condition of gravity flow developing in low-lying slope zone of Dongying delta in Jiyang depression[J]. Journal of China University of Petroleum (Edition of Natural Science), 2017, 41 (4): 36- 45. doi: 10.3969/j.issn.1673-5005.2017.04.005
31	贾光华. 东营凹陷南坡古近系红层砂体储层特征及控制因素[J]. 东北石油大学学报, 2013, 37 (3): 48- 127. 48-58+126-127 doi: 10.3969/j.issn.2095-4107.2013.03.007
	Jia Guanghua . Reservoir characteristic and control factors of Paleogene red sandstones in southern slope of Dongyiing sag[J]. Journal of Northeast Petroleum University, 2013, 37 (3): 48- 127. 48-58+126-127 doi: 10.3969/j.issn.2095-4107.2013.03.007
32	王永诗, 王勇, 郝雪峰, 等. 深层复杂储集体优质储层形成机理与油气成藏-以济阳坳陷东营凹陷古近系为例[J]. 石油与天然气地质, 2016, 37 (4): 490- 498.
	Wang Yongshi , Wang Yong , Hao Xuefeng , et al. Genetic mechanism and hydrocarbon accumulation of quality reservoir in deep and complicated reservoir rocks: A case from the Palaeogene in Dongying Sag, Jiyang Depression[J]. Oil & Gas Geology, 2016, 37 (4): 490- 498.
33	郝雪峰. 东营凹陷沙三-沙四段砂岩储层超压成因与演化[J]. 石油与天然气地质, 2013, 34 (2): 167- 173.
	Hao Xuefeng . Overpressure genesis and evolution of sandstone reservoirs in the 3rd and 4th members of Shahejie formation, the Dongying depression[J]. Oil & Gas Geology, 2013, 34 (2): 167- 173.

层位		井号	岩性	有机质丰度指标			R_o/%	干酪根类型	综合评价	分布区域
层位		井号	岩性	TOC/%	氯仿沥青A含量/%	（S₁+S₂）/（mg·g^-1）	R_o/%	干酪根类型	综合评价	分布区域
沙四下亚段	上部	丰深1	钙质泥岩	0.30 ~ 3.50	0.30 ~ 0.90	0.90 ~ 8.20	0.90 ~ 1.30	Ⅱ₁-Ⅱ₂	成熟、优质烃源岩	民丰、利津
沙四下亚段	下部	丰深2	泥岩	0.30 ~ 0.80	0.10 ~ 0.20	0.20 ~ 0.90	1.10 ~ 1.30	Ⅱ₁-Ⅱ₂	高成熟、中等-差烃源岩	民丰、利津
孔二段		胜科1	灰黑色泥	0.07 ~ 0.94/0.41	0.01 ~ 0.07/0.02	0.04 ~ 0.27/ 0.05	4.14 ~ 4.17/4.12	Ⅰ-Ⅱ	过成熟、中等烃源岩	牛庄洼陷、石村地区
孔二段		王46	岩夹膏岩	0.05 ~ 1.16	-	0.01 ~ 0.15	0.96 ~ 1.25	Ⅰ，Ⅱ-Ⅲ	过成熟、中等烃源岩	牛庄洼陷、石村地区

井号	试油深度/m	构造位置	储集类型	油藏类型	油源	试油产量	原油性质
丰深1	4 316~4 313	陡坡带	砂砾岩	岩性	Es^4（上）	日产油81.7 t，日产气11.80×10⁴ m³	常规油、裂解气
新利深1	4 220~4 237	陡坡带	砂砾岩	构造-岩性	Es^4（下）	日产油99 t，日产气25.63×10⁴ m³	常规油、裂解气
丰深斜101	4 525~4 552	陡坡带	砂砾岩	岩性	Es^4（下）	日产油16.95 t，日产气3.06×10⁴ m³	凝析油气
高94	3 776~3 789	缓坡带	红层滩坝	构造-岩性	Es^4（上）	日产油5.75 t	常规油
樊154	3 500~3 522	缓坡带	滩坝	构造-岩性	Es^4（上）	日产油12.50 t	常规油
利67	4 007~4 092	缓坡带	滩坝	岩性	Es^4（上）	日产油83.40 t	常规油
高946	3 647~3 657	缓坡带	红层	构造-岩性	Es^4（上）	日产油18.30 t	常规油
高945	3 704~3 718	缓坡带	红层	构造-岩性	Es^4（上）	日产油7.84 t	常规油

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