Special Oil & Gas Reservoirs >

2023 , Vol. 30 >Issue 3: 29 - 37

DOI: https://doi.org/10.3969/j.issn.1006-6535.2023.03.004

Geologic Exploration

Sedimentary Characteristics and Favorable Reservoir Evaluation of Braided Fluvial Alluvial Fan Controlled by Paleo Gully Geomorphology

  • Sun Yili ,
  • Fan Xiaoyi
Expand
  • 1. Sinopec Henan Oilfield Company, Nanyang, Henan 473132, China;
    2. Henan Provincial Key Laboratory of Enhanced Oil Recovery, Nanyang, Henan 473132, China

Received date: 2022-05-16

  Revised date: 2023-04-23

  Online published: 2023-07-13

Fold

Abstract

The stratigraphic space stacking pattern and sedimentary characteristics of alluvial fan controlled by paleo gully geomorphology are more complicated, making it difficult to conduct the study of sedimentary characteristics with existing model. Guided by the research results of the modern Baiyanghe alluvial fan and combined with seismic, core, well logging, physical properties, oil-bearing characteristics and other data, the fluvial alluvial fan controlled by paleo gully geomorphology in Shawan Formation, Chunguang Oilfield was systematically studied in terms of palaeogeomorphology, lithofacies characteristics, microfacies distribution and other sedimentary characteristics, and a dynamic sedimentary evolution model was established. The results of the study show that this area was featured by two-channel paleo gully geomorphology, and the formation went through the filling process of gully-filling-progradation-retrogradation, with unbalanced deposition. Limited by the regional location, sedimentary subfacies were developed only at the middle and rear of the fan. The early stage was a flood period, and the fan was dominated by sedimentation. Controlled by the paleo gully geomorphology, the restricted channelized fan deposits were also developed. From the middle to the end of the fan, gravity current deposition was converted to traction current deposition. The late stage was a flood regression period, and with the filling and consolidation of the strata, the unrestricted fan deposits were developed and dominated by sheet flow deposit. On the basis of fine identification of sedimentary microfacies, the classification and evaluation criteria for reservoirs were established, the study results were applied to the northwest of Chunguang Oilfield, and three favorable areas were selected, and new wells were deployed to achieve breakthrough in the paleo-gully alluvial fan reservoirs. The study results have deepened the understanding of sedimentary evolution characteristics of alluvial fans controlled by different landforms and have important significance for the study of sedimentary characteristics of paleo-gully alluvial fan reservoirs.

Key words： paleogully; braided fluvial alluvial fan; sedimentary characteristics; favorable reservoir; Chunguang Oilfield; Junggar Basin

Cite this article

Sun Yili , Fan Xiaoyi . Sedimentary Characteristics and Favorable Reservoir Evaluation of Braided Fluvial Alluvial Fan Controlled by Paleo Gully Geomorphology[J]. Special Oil & Gas Reservoirs, 2023 , 30(3) : 29 -37 . DOI: 10.3969/j.issn.1006-6535.2023.03.004

References

[1] 刘大卫,纪友亮,高崇龙,等.砾质辫状河型冲积扇沉积微相及沉积模式——以准噶尔盆地西北缘现代白杨河冲积扇为例[J].古地理学报,2018,20(3):435-451.
LIU Dawei,JI Youliang,GAO Chonglong,et al.Microfacies and sedimentary models of gravelly braided-river alluvial fan:a case study of modern Baiyanghe-river alluvial fan in northwestern margin of Junggar Basin[J].Journal of Paleogeography,2018,20(3):435-451.
[2] 印森林,刘忠保,陈燕辉,等.冲积扇研究现状及沉积模拟实验——以碎屑流和辫状河共同控制的冲积扇为例[J].沉积学报,2017,35(1):10-23.
YIN Senlin,LIU Zhongbao,CHEN Yanhui,et al.Research progress and sedimentation experiment simulation about alluvial fan:a case study on alluvial fan controlled by debris flow and braided river[J].Acta Sedimentologica Sinica,2017,35(1):10-23.
[3] 白振华,张源智,刘玉梅,等.百口泉油田百21井区夏一段冲积扇储层沉积微相分析[J].特种油气藏,2011,18(2):41-44.
BAI Zhenhua,ZHANG Yuanzhi,LIU Yumei,et al.Analysis of sedimentary microfacies in the alluvial fan reservoir of the first member of the Xiazijie Formation in the Bai-21 Well Block of the Baikouquan Oilfield[J].Special Oil & Gas Reservoirs,2011,18(2):41-44.
[4] ZHANG Huiping,LYU Yuanyuan.Geomorphometric features of the alluvial fans around the Chaka-Qinghai Lake in the northeastern Tibetan Plateau[J].Journal of Earth Science,2014,25(1):109-116.
[5] 李伟才.春光油田排2-400井区沉积微相研究[J].石油天然气学报(江汉石油学院学报),2014,36(12):38-43.
LI Weicai.Sedimentary microfacies of Wellblock Pai 2-400 in Chunguang Oilfield[J].Journal of Oil and Gas Technology(Journal of Jianghan Petroleum Institute),2014,36(12):38-43.
[6] 王勇,陈丽丽,李风勋,等.春光探区沙湾组沉积体系与油气分布特征[J].石油地质与工程,2015,29(1):8-10.
WANG Yong,CHEN Lili,LI Fengxun,et al.Sedimentary system and distribution characteristics of Shawan Formation in Chunguang Exploration Area[J].Petroleum Geology & Engineering,2015,29(1):8-10.
[7] 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.
FAN Xiaoyi,YAO Guangqing,YANG Zhenfeng,et al.Seismic sedimentology in multiple sources-complex depositional systems of Chepaizi Uplift,Junggar Basin[J].Journal of Earth Science,2018,43(3):786-801.
[8] 邢凤存,陆永潮,刘传虎,等.车排子地区构造-古地貌特征及其控砂机制[J].石油与天然气地质,2008,29(1):78-83.
XING Fengcun,LU Yongchao,LIU Chuanhu,et al.Structural-paleogeomorphologic features of Chepaizi Area and mechanism of their control on sandbodies[J].Oil & Gas Geology,2008,29(1):78-83.
[9] 仲维苹.准噶尔盆地车排子地区新近系沙湾组沉积特征研究[D].北京:中国石油大学(北京),2010.
ZHONG Weiping.Study on the sedimentary characteristics of the Neoproterozoic Shawan Formation in Chepaizi Area of Junggar Basin[D].Beijing:China University of Petroleum(Beijing),2010.
[10] 侯振,黎锡瑜,曲洁,等.春光油田西北部沟谷型冲积扇油藏复合砂体主控因素分析[J].石油地质与工程,2018,32(1):19-21.
HOU Zhen,LI Xiyu,QU Jie,et al.Main controlling factors analysis of the compound sand body from the gully type alluvial fan reservoir in the northwest of Chunguang Oilfield[J].Petroleum Geology & Engineering,2018,32(1):19-21.
[11] 高崇龙,纪友亮,靳军,等.阵发性洪水控制的河流型冲积扇沉积特征及沉积演化模式——以和什托洛盖盆地北缘现代白杨冲积扇为例[J].石油学报,2020,41(3):310-318.
GAO Chonglong,JI Youliang,JIN Jun,et al.Sedimentary characteristics and evolution model of fluvial fan dominated by intermittent flood flows:a case study of Baiyang alluvial fan within the northern margin of Heshituoluogai Basin[J].Acta Petrolei Sinica,2020,41(3):310-318.
[12] 秦国省,邹存友,赖令彬,等.准噶尔盆地西北缘百口泉地区三叠系冲积沉积体系与油气成藏[J].石油与天然气地质,2020,41(6):1197-1211.
QIN Guosheng,ZOU Cunyou,LAI Lingbin,et al.Alluvial depositional system and its controlling effect on hydrocarbon accumulation of the Triassic in the Baikouquan Area,northwestern Junggar Basin[J].Oil & Gas Geology,2020,41(6):1197-1211.
[13] 李国永,徐怀民,张兵,等.准噶尔盆地西北缘八区克下组冲积扇沉积微相研究[J].特种油气藏,2010,17(2):15-18.
LI Guoyong,XU Huaimin,ZHANG Bing,et al.Research on sedimentary microfacies for alluvial fan in lower Karamay Formation in the 8th zone of northwestern Junggar Basin[J].Special Oil & Gas Reservoirs,2010,17(2):15-18.
[14] 钟亚聪.克拉玛依油田七中区冲积扇储层质量研究[D].北京:中国石油大学(北京),2020.
ZHONG Yacong.Study on quality of alluvial fan reservoir in District Min-7 of Karamay Oilfield[D].Beijing:China University of Petroleum(Beijing),2020.
[15] 吴建邦,杨胜来,李强,等. 准噶尔盆地玛湖凹陷致密砂砾岩储层可动孔隙界限[J].大庆石油地质与开发,2022,41(6):167-174.
WU Jianbang,YANG Shenglai,LI Qiang,et al. Movable pore limits of tight glutenite reservoir in Mahu Sag of Junggar Basin[J].Petroleum Geology & Oilfield Development in Daqing,2022,41(6):167-174.
[16] 梁则亮,毛晨飞,肖华,等. 岩石物理相约束下的砂砾岩岩性粒级精细划分——以准噶尔盆地乌尔禾组为例[J].长江大学学报(自然科学版),2022,19(4):28-37.
LIANG Zeliang,MAO Chenfei,XIAO Hua,et al. Fine classification of lithologic grade of sand-conglomerate under the constraint of petrophysical facies:taking the Wuerhe Formation in the Junggar Basin as an example[J].Journal of Yangtze University( Natural Science Edition),2022,19(4):28-37.
[17] 金杰华,王永诗,操应长,等.准噶尔盆地车排子地区侏罗系下切谷充填特征及地质意义[J].断块油气田,2022,29(6):807-815.
JIN Jiehua,WANG Yongshi,CAO Yingchang,et al.Infilling characteristics of the jurassic incised valley and its geological significance in the Chepaizi Area of the Junggar Basin[J].Fault-Block Oil & Gas Field,2022,29(6):807-815.
[18] 张凤奇,刘伟,鲁雪松,等.喜马拉雅晚期构造应力场及其与油气分布的关系:以准噶尔盆地南缘为例[J].断块油气田,2021,28(4):433-439.
ZHANG Fengqi,LIU Wei,LU Xuesong,et al.Late Himalayan tectonic stress field and its relationship with hydrocarbon distribution: a case study of southern margin of Junggar Basin[J].Fault-Block Oil & Gas Field,2021,28(4):433-439.
[19] 王圣柱.准噶尔盆地博格达地区中二叠统芦草沟组岩相类型及页岩油储集特征[J].大庆石油地质与开发,2021,40(1):1-16.
WANG Shengzhu.Lithofacies types and shale-oil accumulating characteristics of Middle Permian Lucaogou Formation in Bogda Area of Junggar Basin[J].Petroleum Geology & Oilfield Development in Daqing,2021,40(1):1-16.
[20] 刘英辉.准噶尔盆地乌—夏地区风城组云质岩类沉积环境及成因探讨[J].吉林大学学报(地球科学版),2022,52(1):80-93.
LIU Yinghui.Origin of dolomitic tuff in Permian Fengcheng Formation in Wu-Xia Area of Junggar Basin[J]. Journal of Jilin University (Earth Science Edition) ,2022, 52(1):80-93.
[21] 马志欣, 吴正, 张吉, 等.基于动静态信息融合的辫状河储层构型表征及地质建模技术[J].天然气工业, 2022, 42(1):146-158.
MA Zhixin, WU Zheng, ZHANG Ji, et al.Static and dynamic information fusion based reservoir architecture characterization and 3D geological modeling technology for braided river reservoirs[J].Natural Gas Industry, 2022, 42(1):146-158.
[22] 张永波,佟莹,王东学,等. 准噶尔盆地玛湖凹陷东斜坡夏子街组油气成藏条件及下步勘探方向[J].大庆石油地质与开发,2022,41(4):12-19.
ZHANG Yongbo,TONG Ying,WANG Dongxue,et al. Hydrocarbon accumulation conditions and further exploration direction of Xiazijie Formation in east slope of Mahu Sag in Junggar Basin[J].Petroleum Geology & Oilfield Development in Daqing,2022,41(4):12-19.
Options
Outlines

/

〈 〉