Special Oil & Gas Reservoirs >

2021 , Vol. 28 >Issue 3: 54 - 61

DOI: https://doi.org/10.3969/j.issn.1006-6535.2021.03.008

Geologic Exploration

Main Controlling Factors and Modes of Tight Oil Accumulation in Sanzhao Area

  • Bai Junhui
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  • PetroChina Daqing Oilfield Co., Ltd., Daqing,Heilongjiang 163000,China

Received date: 2021-01-04

  Revised date: 2021-03-22

  Online published: 2022-02-16

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Abstract

In view of the differences in the characteristics and scale of tight oil reservoirs in different tectonic units in Sanzhao area, tight oil accumulation mode of Fuyu oil-bearing formation in each tectonic unit was established by analysis of tight oil accumulation conditions, residual pressure in the accumulation period, fault distribution, sand distribution and physical property characteristics. The results showed that the main driving force of tight oil charging and accumulation in the late period of the Mingshui Formation was the residual pressure formed by hydrocarbon generation and pressurization when the hydrocarbon source rocks matured on a large scale; as an important channel of lateral migration, the three-dimensional conductor composed of fault and sand was a necessary condition for the formation of quasi continuous hydrocarbon accumulation; the local “sweet spot” reservoir under the background of tight oil was a favorable area for tight oil enrichment and high production. Three accumulation modes were established: “overpressure driving and near-source oil and gas backflow” in the northern sedimentary center of the sag, “fault-sand matching and near-source lateral migration and accumulation” in the peripheral slope area, and “fault transmission and distant-source lateral migration and accumulation” in the southern uplift. Accumulation modes and tight oil enrichment rules were different in different regions. This study may provide a geological basis for the selection of tight oil exploration targets in different regions.

Key words： tight oil; main controlling factor; accumulation mode; Fuyu oil-bearing formation; Sanzhao Area

Cite this article

Bai Junhui . Main Controlling Factors and Modes of Tight Oil Accumulation in Sanzhao Area[J]. Special Oil & Gas Reservoirs, 2021 , 28(3) : 54 -61 . DOI: 10.3969/j.issn.1006-6535.2021.03.008

References

[1] 李国欣,朱如凯.中国石油非常规油气发展现状、挑战与关注问题[J].中国石油勘探,2020,25(2):1-13.
LI Guoxin,ZHU Rukai.Progress, challenges and key issues of unconventional oil and gas development of CNPC[J].China Petroleum Exploration,2020,25(2):1-13.
[2] 杨智,唐振兴,陈旋,等.“进源找油”:致密油主要类型及地质工程一体化进展[J].中国石油勘探,2020,25(2):73-83.
YANG Zhi,TANG Zhenxing,CHEN Xuan,et al.“Exploration oil inside source kitchen”:main types of tight oil and progress of geology-engineering integration[J].China Petroleum Exploration,2020,25(2):73-83.
[3] 李登华,刘卓亚,张国生,等.中美致密油成藏条件、分布特征和开发现状对比与启示[J].天然气地球科学,2017,28(7):1126-1138.
LI Denghua,LIU Zhuoya,ZHANG Guosheng,et al.Comparison and revelation of tight oil accumulation conditions, distribution characteristics and development status between China and US[J].Natural Gas Geoscience,2017,28(7):1126-1138.
[4] HOLDITCH S A.Tight gas and sands[J].Journal of Petroleum Technology,2006,58(6):86-94.
[5] 胡素云,陶士振,闫伟鹏,等.中国陆相致密油富集规律及勘探开发关键技术研究进展[J].天然气地球科学,2019,30(8):1083-1093.
HU Suyun,TAO Shizhen,YAN Weipeng,et al.Advances on continental tight oil accumulation and key technologies for exploration and development in China[J].Natural Gas Geoscience,2019,30(8):1083-1093.
[6] 苏阳,查明,曲江秀,等.吉木萨尔凹陷芦草沟组致密油聚集过程模拟及主控因素分析[J].中国石油大学学报(自然科学版),2019,43(6):11-22.
SU Yang,ZHA Ming,QU Jiangxiu,et al.Simulations on oil accumulation processes and controlling factors in tight reservoirs of Lucaogou Formation of Jimsar Sag[J].Journal of China University of Petroleum(Edition of Natural Sciences), 2019,43(6):11-22.
[7] 林铁峰,康德江,姜丽娜.松辽盆地北部扶余油层致密油地质特征及勘探潜力[J].大庆石油地质与开发,2019,38(5):94-100.
LIN Tiefeng,KANG Dejiang,JIANG Lina.Geological characteristic and exploration potential of the tight oil in Fuyu oil reservoirs of north Songliao Basin[J].Petroleum Geology & Oilfield Development in Daqing,2019,38(5):94-100.
[8] 李国会,康德江,姜丽娜,等.松辽盆地北部发育油层致密油成藏条件及甜点区优选[J].天然气地球科学,2019,30(8):1106-1113.
LI Guohui,KANG Dejiang,JIANG Lina,et al.Geological condition and sweet area selection of Fuyu Formation in the north of Songliao Basin[J].Natural Gas Geoscience,2019,30(8):1106-1113.
[9] 王松喜. 三肇地区扶余油层致密油形成条件及分布规律[J]. 石油化工高等学校学报, 2018, 31(6): 46-52.
WANG Songxi. Formation and distribution rule of tight oil in fuyu oil layer of the Sanzhao Area[J].Journal of Petrochemical Universities, 2018, 31(6): 46-52.
[10] 郭昊,魏旭,张永平,等.考虑非均质性的致密储层改造效果评价[J].油气地质与采收率,2019,26(3):111-116.
GUO Hao,WEI Xu,ZHANG Yongping,et al.Stimulation evaluation of tight reservoir considering heterogeneity effect[J].Petroleum Geology and Recovery Efficiency,2019,26(3):111-116.
[11] 高秋菊,谭明友,张营革,等.陆相页岩油“甜点”井震联合定量评价技术——以济阳坳陷罗家地区沙三段下亚段为例[J].油气地质与采收率,2019,26(1):165-173.
GAO Qiuju,TAN Mingyou,ZHANG Yingge,et al.Well-seismic joint technology for quantitative evaluation of“sweet spot”in continental shale oil:a case study of Lower Es3 member of Luojia Area in Jiyang Depression[J].Petroleum Geology and Recovery Efficiency,2019,26(1):165-173.
[12] 李映艳,钱根葆,高阳,等. 准噶尔盆地玛湖凹陷百口泉组砾岩致密油藏地质“甜点”分级标准及应用[J]. 东北石油大学学报,2018,42(6):85-94.
LI Yingyan,QIAN Genbao,GAO Yang,et al. Identification criterion of the geological sweet points of conglomerate tight reservoir and its application of Baikouquan Formation in Mahu Sag,Junggar Basin[J].Journal of Northeast Petroleum University,2018,42(6):85-94.
[13] 何晋译,蔡进功,雷天柱,等.东营凹陷古近系泥页岩中可溶有机质特征与页岩油“甜点”预测[J].油气地质与采收率,2019,26(1):174-182.
HE Jinyi,CAI Jingong,LEI Tianzhu,et al.Characteristics of soluble organic matter of Paleogene shale in Dongying Sag and prediction of shale oil sweet spots[J].Petroleum Geology and Recovery Efficiency,2019,26(1):174-182.
[14] 蒋学峰. 叠前反演技术在致密油甜点预测中的应用[J]. 石油化工高等学校学报, 2018, 31(3): 76-80.
JIANG Xuefeng. Application of pre-stack inversion technology in tight oil dessert prediction[J]. Journal of Petrochemical Universities, 2018, 31(3): 76-80.
[15] 冯顺彦,张晓辉,李成,等.鄂尔多斯盆地志靖-安塞地区长2油藏成藏主控因素分析[J].特种油气藏,2002,27(4):54-59.
FENG Shunyan,ZHANG Xiaohui,LI Cheng,et al.Hydrocarbon accumulation main-controlling factor analysis of Chang2 reservoir in Zhijing-Ansai of Ordos Basin[J].Special Oil & Gas Reservoirs,2002,27(4):54-59.
[16] 张永华,陈祥,张悦,等.泌阳凹陷地层压力成因机制与预测方法[J].特种油气藏,2020,27(1):25-29.
ZHANG Yonghua,CHEN Xiang,ZHANG Yue,et al.Formation pressure genesis mechanism and prediction in Biyang Depression[J].Special Oil & Gas Reservoirs,2002,27(1):25-29.
[17] 梁江平,赵波,陈均亮,等.松辽盆地北部断裂系统及其对油气分布的控制作用[J].大庆石油地质与开发,2019,38(5):126-134.
LIANG Jiangping,ZHAO Bo,CHEN Junliang,et al.Fault systems and their controlling actions on the petroleum distribution in north Songliao Basin[J].Petroleum Geology & Oilfield Development in Daqing,2019,38(5):126-134.
[18] SCHMOKER J W,HESTER T C.Organic carbon in Bakken Formation,United States portion of Williston Basin[J].AAPG Bulletin,1983,67(12):2165-2174.
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