准噶尔盆地春光地区新近系沙湾组辫—曲演化与成藏特点

岳欣欣

doi:10.11781/sysydz202106967

准噶尔盆地春光地区新近系沙湾组辫—曲演化与成藏特点

doi: 10.11781/sysydz202106967

岳欣欣

中国石化河南油田分公司勘探开发研究院, 郑州 450018

基金项目:

中国石化科技部项目 P19016-2

详细信息

作者简介:
岳欣欣(1986-), 男, 助理研究员, 从事油气勘探开发研究。E-mail: 345169296@qq.com

中图分类号: TE122.3
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出版历程
- 收稿日期: 2021-01-23
- 修回日期: 2021-09-09
- 刊出日期: 2021-11-28

Meander-braided transition features and hydrocarbon accumulation characteristics in Neogene Shawan Formation, Chunguang exploration block, Junggar Basin

YUE Xinxin

Research Institute of Exploration and Development, Henan Oilfield Company, SINOPEC, Zhengzhou, Henan 450018, China

摘要

摘要: 春光地区为准噶尔盆地西北缘重要的含油气区块之一，新近系沙湾组为主要的产能、探明储量贡献层系。为满足精细勘探的需求，亟需对沙湾组的沉积特征、沉积演化和成藏模式进行深入研究。综合应用岩心、测井和地震资料，通过地层沿层切片分析，认为研究区发育辫状河、曲流河沉积，且同一时期存在“东辫西曲”的沉积特征，明确了不同时期的沉积演化过程；通过构造沉降及地形、基准面旋回变化、物源供给及古气候分析，明确河型转换控制因素；通过对不同河型油气藏成藏特点及识别特征的分析，建立了新的成藏模式，形成立体成藏格局；结合成藏认识，明确了有利勘探方向，有效拓展了勘探领域，取得了较好的勘探效果，为春光地区的增储上产提供了理论支撑。
- 河型转化 /
- 主控因素 /
- 沉积演化 /
- 成藏特点 /
- 新近系 /
- 春光地区 /
- 准噶尔盆地
Abstract: The Chunguang exploration area is one of the important oil-gas bearing blocks on the northwestern margin of Junggar Basin. Considerable number of high-yield wells have been developed in the Neogene Shawan Formation during the earlier exploration stage, and great exploration and development potential in this area were indicated. In order to meet the needs of delicate exploration, a further study of the sedimentary characteristics, sedimentary evolution and reservoir forming models were promising for the further exploration. With the analysis of cores, loggings and amplitude slices, the typical sedimentary microfacies of diara and point bar deposits were identified in the study area. Then it was considered that braided river and meandering river deposits were developed in the study area with the feature of "braided river deposits in the east part of study area and meandering river deposits in the west part". Moreover, the sedimentary evolution process was determined and a new sedimentary model was established. With the flattening of terrain, the continuous rising of base level, the weakening of provenance supply and the changing of climate from humid to heat, the sedimentary system was gradually transformed from braided river deposits to meandering river deposits. By the study of reservoir accumulation and recognition characteristics of different river-type deposits, a new reservoir forming model was built. Combined with the understanding of reservoir formation, the favorable exploration direction was indicated, the exploration field was effectively expanded, and good exploration results were obtained, which provided theoretical support for the increase of reserves and production in the Chunguang exploration area.
- river-pattern transition /
- main controlling factor /
- sedimentary evolution /
- reservoir accumulation characteristics /
- Neogene /
- Chunguang exploration block /
- Junggar Basin

HTML全文

图 1 准噶尔盆地春光地区构造位置(a)和地层系统(b)

Figure 1. Tectonic location (a) and strata system (b) of Chunguang block, Junggar Basin

下载: 全尺寸图片幻灯片

图 2 准噶尔盆地春光地区研究区典型岩心照片

Figure 2. Typical core images of Shawan Formation in Chunguang block, Junggar Basin

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图 3 准噶尔盆地春光地区研究区不同河型沉积特征

Figure 3. Sedimentary characteristics of different river types of Chunguang block, Junggar Basin

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图 4 准噶尔盆地春光地区过C1井地震剖面反映垂向上沉积相变化

剖面位置见图 1a。

Figure 4. Vertical changes of sedimentary facies in seismic profile of well C1, Chunguang block, Junggar Basin

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图 5 准噶尔盆地春光地区西南部层位最大波谷振幅属性与沉积相

Figure 5. Images of maximum trough amplitude attribute and sedimentary facies in the southwest of Chunguang block, Junggar Basin

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图 6 准噶尔盆地春光地区研究区辫状河—曲流河沉积演化模式

Figure 6. Models of sedimentary evolution of braided river and meandering river in Chunguang block, Junggar Basin

下载: 全尺寸图片幻灯片

图 7 准噶尔盆地春光地区辫状河油气藏特点

Figure 7. Reservoir characteristics of braided-river deposits in Chunguang block, Junggar Basin

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图 8 准噶尔盆地春光地区曲流河砂体叠置特征与油气藏特点

Figure 8. Reservoir characteristics of meandering-river deposits in Chunguang block, Junggar Basin

下载: 全尺寸图片幻灯片

图 9 准噶尔盆地春光地区沙湾组油气成藏模式

Figure 9. Model of oil and ags accumulation of Shawan Formation in Chunguang block, Junggar Basin

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图 10 准噶尔盆地春光地区曲流河砂体尖灭带刻画及有利区带

Figure 10. Pinchout zone characterization and favorable zone of meandering-river deposits in Chunguang block, Junggar Basin

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参考文献(23)

[1]	黎腾, 王鹏飞, 岳欣欣, 等. 油藏开发区叠置砂体刻画技术研究: 以春光油田春2-6井区为例[J]. 石油地质与工程, 2016, 30(1): 62-64. https://www.cnki.com.cn/Article/CJFDTOTAL-SYHN201601016.htm LI Teng, WANG Peifei, YUE Xinxin, et al. Research on superimposed sand body characterization techniques in reservoir development area: by taking Chun2-6 well block of Chunguang oilfield as the example[J]. Petroleum Geology and Engineering, 2016, 30(1): 62-64. https://www.cnki.com.cn/Article/CJFDTOTAL-SYHN201601016.htm
[2]	杨恺, 董臣强, 徐国盛. 车排子地区新近系沙湾组物源与沉积相分析[J]. 中国石油大学学报(自然科学版), 2012, 36(3): 7-13. https://www.cnki.com.cn/Article/CJFDTOTAL-SYDX201203001.htm YANG Kai, DONG Chenqiang, XU Guosheng. Analysis of provenance and sedimentary facies of Neogene Shawan Formation in Chepaizi area[J]. Journal of China University of Petroleum, 2012, 36(3): 7-13. https://www.cnki.com.cn/Article/CJFDTOTAL-SYDX201203001.htm
[3]	樊晓伊, 姚光庆, 杨振峰, 等. 准噶尔盆地车排子凸起多物源复杂沉积体系中的地震沉积学[J]. 地球科学, 2018, 43(3): 786-801. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX201803011.htm FAN Xiaoyi, YAO Guangqing, YANG Zhenfeng, et al. Seismic sedimentology in multiple sources-complex depositional systems of Chepaizi Uplift, Junggar Basin[J]. Earth Science, 2018, 43(3): 786-801. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX201803011.htm
[4]	陈轩, 杨振峰, 王振奇, 等. 大型斜坡区冲积-河流体系沉积特征与岩性油气藏形成条件: 以准噶尔盆地春光区块沙湾组为例[J]. 石油学报, 2016, 37(9): 1090-1101. https://www.cnki.com.cn/Article/CJFDTOTAL-SYXB201609003.htm CHEN Xuan, YANG Zhenfeng, WANG Zhenqi, et al. Sedimentary characteristics of alluvial-fluvial systems and forming conditions of lithologic reservoirs in the large slope area: a case study of Neogene Shawan Formation in Chunguang block, Junggar Basin[J]. Acta Petrolei Sinica, 2016, 37(9): 1090-1101. https://www.cnki.com.cn/Article/CJFDTOTAL-SYXB201609003.htm
[5]	杜显涛, 徐少华, 夏磊, 等. 春光区块沙湾组二段地震相-沉积相研究[J]. 重庆科技学院学报(自然科学版), 2014, 16(2): 13-17. https://www.cnki.com.cn/Article/CJFDTOTAL-CQSG201402005.htm DU Xiantao, XU Shaohua, XIA Lei, et al. Studying the seismic facies and sedimentary facies of Shawan Formation 2 in Chunguang area[J]. Journal of Chongqing University of Science and Technology(Natural Sciences Edition), 2014, 16(2): 13-17. https://www.cnki.com.cn/Article/CJFDTOTAL-CQSG201402005.htm
[6]	高山林, 王勇, 杨双, 等. 准噶尔盆地西缘春光探区岩性油气藏成藏主控因素[J]. 新疆地质, 2018, 36(2): 233-238. https://www.cnki.com.cn/Article/CJFDTOTAL-XJDI201802015.htm GAO Shanlin, WANG Yong, YANG Shuang, et al. Main controlling factors of lithological reservoirs in Chunguang exploration area, the western margin of Junggar Basin[J]. Xinjiang Geology, 2018, 36(2): 233-238. https://www.cnki.com.cn/Article/CJFDTOTAL-XJDI201802015.htm
[7]	陈祥, 王敏, 王勇, 等. 准噶尔盆地西缘春光油田地层-岩性油气藏特征[J]. 石油与天然气地质, 2015, 36(3): 356-361. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201503004.htm CHEN Xiang, WANG Min, WANG Yong, et al. Reservoir-forming characteristics of stratigraphic and lithologic reservoir in Chunguang oilfield, western margin of Junggar Basin[J]. Oil & Gas Geology, 2015, 36(3): 356-361. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201503004.htm
[8]	沈扬, 贾东, 宋国奇, 等. 源外地区油气成藏特征、主控因素及地质评价: 以准噶尔盆地西缘车排子凸起春光油田为例[J]. 地质论评, 2010, 56(1): 51-59. https://www.cnki.com.cn/Article/CJFDTOTAL-DZLP201001009.htm SHEN Yang, JIA Dong, SONG Guoqi, et al. Reservoir-forming characters, key control factors and geological evaluation in the area outside oil source: take the Chunguang oilfield in Chepaizi Uplift in western Junggar Basin as an example[J]. Geological Review, 2010, 56(1): 51-59. https://www.cnki.com.cn/Article/CJFDTOTAL-DZLP201001009.htm
[9]	MIALL A. The geology of fluvial deposits: sedimentary facies, basin analysis, and petroleum geology[M]. Berlin: Springer, 1996: 66-85.
[10]	ASHWORTH P J, SAMBROOK SMITH G H, BEST J L, et al. Evolution and sedimentology of a channel fill in the sandy braided South Saskatchewan river and its comparison to the deposits of an adjacent compound bar[J]. Sedimentology, 2011, 58(7): 1860-1883.
[11]	樊晓伊, 姚光庆, 岳欣欣, 等. 基于现代沉积的车排子凸起春光区块沙二段沉积相研究[J]. 新疆石油地质, 2017, 38(2): 155-160. https://www.cnki.com.cn/Article/CJFDTOTAL-XJSD201702007.htm FAN Xiaoyi, YAO Guangqing, YUE Xinxin, et al. Research on sedimentary facies based on modern sedimentary systems: a case from the second member of Shawan Formation in Chunguang area of Chepaizi swell, Junggar Basin[J]. Xinjiang Petroleum Geology, 2017, 38(2): 155-160. https://www.cnki.com.cn/Article/CJFDTOTAL-XJSD201702007.htm
[12]	王随继, 倪晋仁, 王光谦. 古河型演化模式及其影响因素的沉积体系分析[J]. 石油勘探与开发, 2000, 27(5): 102-105. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK200005031.htm WANG Suiji, NI Jinren, WANG Guangqian. Depositional system analysis on the evolution model of ancient river type and its controlling factors[J]. Petroleum Exploration and Development, 2000, 27(5): 102-105. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK200005031.htm
[13]	谭程鹏, 于兴河, 李胜利, 等. 辫状河-曲流河转换模式探讨: 以准噶尔盆地南缘头屯河组露头为例[J]. 沉积学报, 2014, 32(3): 450-458. https://www.cnki.com.cn/Article/CJFDTOTAL-CJXB201403006.htm TAN Chengpeng, YU Xinghe, LI Shengli, et al. Discussion on the model of braided river transform to meandering river: as an example of Toutunhe Formation in southern Junggar Basin[J]. Acta Sedimentologica Sinica, 2014, 32(3): 450-458. https://www.cnki.com.cn/Article/CJFDTOTAL-CJXB201403006.htm
[14]	晋剑利, 黄奇志, 赵国良, 等. 南苏丹Melut盆地Palogue油田古近系Yabus组河型演化规律及主控因素分析[J]. 古地理学报, 2018, 20(6): 951-962. https://www.cnki.com.cn/Article/CJFDTOTAL-GDLX201806004.htm JIN Jianli, HUANG Qizhi, ZHAO Guoliang, et al. Evolution of fluvial pattern and analysis of dominated factors in the Paleogene Yabus Formation of Palogue Oilfield in Melut Basin, South Sudan[J]. Journal of Palaeogeography, 2018, 20(6): 951-962. https://www.cnki.com.cn/Article/CJFDTOTAL-GDLX201806004.htm
[15]	费李莹, 王仕莉, 吴涛, 等. 坡折带对砂质碎屑流沉积的控制作用: 以准噶尔盆地盆1井西凹陷及周缘侏罗系三工河组为例[J]. 油气地质与采收率, 2020, 27(2): 26-34. https://www.cnki.com.cn/Article/CJFDTOTAL-YQCS202002005.htm FEI Liying, WANG Shili, WU Tao, et al. Control of slope break zone on sandy debris flow deposition: a case study of Jurassic Sangonghe Formation in west sag of Well Pen-1 and its periphery in Junggar Basin[J]. Petroleum Geology and Recovery Efficiency, 2020, 27(2): 26-34. https://www.cnki.com.cn/Article/CJFDTOTAL-YQCS202002005.htm
[16]	张瑞香, 王延章, 孔雪, 等. 断陷湖盆辫状河三角洲储层构型解剖: 以东辛油田营66断块沙二段为例[J]. 断块油气田, 2020, 27(2): 165-170. https://www.cnki.com.cn/Article/CJFDTOTAL-DKYT202002007.htm ZHANG Ruixiang, WANG Yanzhang, KONG Xue, et al. Architecture analysis of braided river delta reservoir in rift lake basin: taking second Member of Shahejie Formation in Ying 66 fault block of Dongxin Oilfield as an example[J]. Fault-Block Oil and Gas Field, 2020, 27(2): 165-170. https://www.cnki.com.cn/Article/CJFDTOTAL-DKYT202002007.htm
[17]	李胜利, 于兴河, 姜涛, 等. 河流辫-曲转换特点与废弃河道模式[J]. 沉积学报, 2017, 35(1): 1-9. https://www.cnki.com.cn/Article/CJFDTOTAL-CJXB201701001.htm LI Shengli, YU Xinghe, JIANG Tao, et al. Meander-braided transition features and abandoned channel patterns in fluvial environment[J]. Acta Sedimentologica Sinica, 2017, 35(1): 1-9. https://www.cnki.com.cn/Article/CJFDTOTAL-CJXB201701001.htm
[18]	刘海, 林承焰, 张宪国. 孔店油田馆陶组辫状河-曲流河转换及其控制因素[J]. 断块油气田, 2017, 24(6): 735-739. https://www.cnki.com.cn/Article/CJFDTOTAL-DKYT201706002.htm LIU Hai, LIN Chengyan, ZHANG Xianguo. Controlling factors and transformation from braided river to meandering river, Guantao Formation, Kongdian Oilfield[J]. Fault-Block Oil & Gas Field, 2017, 24(6): 735-739. https://www.cnki.com.cn/Article/CJFDTOTAL-DKYT201706002.htm
[19]	赵晨帆, 于兴河, 付超, 等. 曲流河三角洲-辫状河三角洲控制因素及演化过程探讨[J]. 沉积学报, 2019, 37(4): 768-784. https://www.cnki.com.cn/Article/CJFDTOTAL-CJXB201904010.htm ZHAO Chenfan, YU Xinghe, FU Chao, et al. Control factors and evolution progress of depositional system transition from meandering river delta to braided river delta: case study of Shan2 member to He8 member, Ordos Basin[J]. Acta Sedimentologica Sinica, 2019, 37(4): 768-784. https://www.cnki.com.cn/Article/CJFDTOTAL-CJXB201904010.htm
[20]	孔璞. 春光油田岩石物理特征研究与应用[D]. 成都: 成都理工大学, 2017. KONG Pu. Study and application of rock physics properties in Chunguang oilfield[D]. Chengdu: Chengdu University of Technology, 2017.
[21]	朱景修, 罗曦. 春光探区新近系沙湾组成藏主控因素[J]. 石油地质与工程, 2016, 30(3): 13-16. https://www.cnki.com.cn/Article/CJFDTOTAL-SYHN201603004.htm ZHU Jingxiu, LUO Xi. Main controlling factors of hydrocarbon accumulation in Chunguang exploration area[J]. Petroleum Geology and Engineering, 2016, 30(3): 13-16. https://www.cnki.com.cn/Article/CJFDTOTAL-SYHN201603004.htm
[22]	王坤, 任新成, 马奎, 等. 准噶尔盆地车排子凸起沙湾组油藏输导体系研究[J]. 高校地质学报, 2016, 22(2): 350-359. https://www.cnki.com.cn/Article/CJFDTOTAL-GXDX201602015.htm WANG Kun, REN Xincheng, MA Kui, et al. Migration pathway system of the reservoir in Shawan Formation in Chepaizi Salient, Junggar Basin[J]. Geological Journal of China Universities, 2016, 22(2): 350-359. https://www.cnki.com.cn/Article/CJFDTOTAL-GXDX201602015.htm
[23]	宋明水, 吕明久, 赵乐强, 等. 准噶尔盆地车排子凸起油气资源潜力与成藏模式[J]. 中国石油勘探, 2016, 21(3): 83-91. https://www.cnki.com.cn/Article/CJFDTOTAL-KTSY201603008.htm SONG Mingshui, LÜ Mingjiu, ZHAO Leqiang, et al. Hydrocarbon potential and accumulation model in Chepaizi uplift, Junggar Basin[J]. China Petroleum Exploration, 2016, 21(3): 83-91. https://www.cnki.com.cn/Article/CJFDTOTAL-KTSY201603008.htm