Characteristics of Conversion Sedimentation Controlled by Differential Fault Activity in the Sangonghe Formation in the Moxizhuang Area

doi:10.3969/j.issn.1006-6535.2023.06.011

Abstract

Abstract: In response to the problems of complex oil and water distribution pattern, poor understanding of sand body depositional characteristics and depositional control factors in the second member of the Sangonghe Formation in the Moxizhuang area, the depositional characteristics of the area were analyzed, the depositional control factors were determined, and depositional modes were established in different periods to clarify the spatial location of sandstone reservoirs on the basis of the logging, coring, physical properties and seismic data and in combination with the fault activity. The study shows that in the Moxizhuang area, the braided river delta front sedimentary system is developed, which is divided into 8 kinds of lithofacies such as granularly supported conglomerate facies, sandy conglomerate facies,pebbly sandstone facies massive sandstone facies, cross-laminated sandstone facies, parallel-laminated sandstone facies, horizontal-laminated sandstone facies, mudstone facies and 6 kinds of sedimentary microfacies, such as braided watercourse, interdistributary bay, channel sand bar, mouth bar, distal bar, and shore-shallow lake microfacies according to the sedimentary characteristics; during the depositional period of the lower subsection of the second member of the Sangonghe Formation, the north fault activity was strong, so the slope-break geomorphology was formed in the study area, resulting in hydrodynamic conversion depositional features between the north and south parts of the study area; in the context of the lake level rising and hydrodynamic weakening, the activity of the south fault intensified during the depositional period of the upper subsection, which together with the graben tectonics formed by the north faults controlled the conversion of the deposition direction of the sand body in the southeastern part of the study area, and favored a shift in the depositional direction of the sand body to a nearly east-west direction. This study is of guiding significance in determining the spatial distribution of sand body reservoirs in the Moxizhuang Area.

Key words: sedimentary characteristics, fault activity, sedimentation control factors, sedimentation pattern, Moxizhuang Area, Sangonghe Formation

CLC Number:

TE121.3

Yang Yi, Han Changcheng, Li Zhipeng, Ma Cunfei, Li Jian, Fan Jiale, Cheng Xuhui, Sun Ruyuan. Characteristics of Conversion Sedimentation Controlled by Differential Fault Activity in the Sangonghe Formation in the Moxizhuang Area[J]. Special Oil & Gas Reservoirs, 2023, 30(6): 82-91.

References

[1] 曹雪娇.莫西庄地区三工河组二段油藏储层特征研究[D].石家庄:河北地质大学,2016.
CAO Xuejiao.Study on characterization of reservoirs in the Member 2 of Sangonghe Formation in the Moxizhuang Area[D].Shijiazhuang:Hebei GEO University,2016.
[2] 胡才志,张立宽,罗晓容,等.准噶尔盆地腹部莫西庄地区三工河组低孔渗砂岩储层成岩与孔隙演化研究[J].天然气地球科学,2015,26(12):2254-2266.
HU Caizhi,ZHANG Likuan,LUO Xiaorong,et al.Diagenesis and porosity evolution of the low-porosity and low-permeability sandstones:evidence from the lower Jurassic Sangonghe Formation in Moxizhuang Area,central Junggar Basin[J].Natural Gas Geoscience,2015,26(12):2254-2266.
[3] 刘传鹏.准噶尔盆地莫西庄地区三工河组二段储层微观特征及有效储层控制因素[J].中国地质,2013,40(5):1515-1522.
LIU Chuanpeng.Reservoir microscopic characteristics and effective reservoir control factors of J₁s₂ in Moxizhuang Area,Junggar Basin[J].Geology in China,2013,40(5):1515-1522.
[4] WEI Guoqi,ZHU Qiuying,YANG Wei,et al.Cambrian faults and their control on the sedimentation and reservoirs in the Ordos Basin,NW China[J].Petroleum Exploration and Development,2019,46(5):38-50.
[5] 周良,王洋,杜学斌,等.珠江三角洲西缘晚第四纪沉积演化和最大海侵古岸线的重建[J].沉积学报,2022,40(1):119-135.
ZHOU Liang,WANG Yang,DU Xuebin,et al.Sedimentary evolution and reconstruction of maximum coastline transgression during the Late Quaternary at the western margin of the pearl river delta[J].Acta Sedimentologica Sinica,2022,40(1):119-135.
[6] YANG Youxing,ZHANG Junfeng,ZHANG Jinhu,et al.Sedimentary characteristics and main controlling factors of the Middle-Upper Permian and Middle-Upper Triassic around Bogda Mountain of Xinjiang,NW China[J].Petroleum Exploration and Development,2022,49(4):770-784.
[7] 何登发,张磊,吴松涛,等.准噶尔盆地构造演化阶段及其特征[J].石油与天然气地质,2018,39(5):845-861.
HE Dengfa,ZHANG Lei,WU Songtao,et al.Tectonic evolution stages and features of the Junggar Basin[J].Oil & Gas Geology,2018,39(5):845-861.
[8] 郑胜.准中地区三工河组浅水三角洲沉积模式及油气勘探意义[J].特种油气藏,2019,26(1):87-93.
ZHENG Sheng.Sedimentary pattern of the shallow-water delta in the Sangonghe Formation of central Junggar Basin and its significance for hydrocarbon exploration[J].Special Oil & Gas Reservoirs,2019,26(1):87-93.
[9] 赵雪洁.准噶尔盆地中部Ⅰ区和Ⅲ区三工河组致密砂岩储层中方解石胶结物成因分析[D].成都:成都理工大学,2020.
ZHAO Xuejie.Analysis of the causes of calcite agglomerates in dense sandstone reservoirs of Sangonghe Formation in No.I Area and No.III Area in central Junggar Basin[D].Chengdu:Chengdu University of Technology,2020.
[10] 梅西,李学杰,密蓓蓓,等.中国海域表层沉积物分布规律及沉积分异模式[J].中国地质,2020,47(5):1447-1462.
MEI Xi,LI Xuejie,MI Beibei,et al.Distribution regularity and sedimentary differentiation patterns of China seas surface sediments[J].Geology in China,2020,47(5):1447-1462.
[11] WANG Zhaoyang,CHANG Xiangchun,LIU Zhongquan,et al.Sediment provenance and facies characteristics of the Lower Cretaceous Qingshuihe Formation in the hinterland of Junggar Basin(NW China)and its exploration implications[J].Arabian Journal of Geosciences,2022,15(7):635-639.
[12] 王飞,刘国文,廖宇斌.鄂尔多斯盆地安塞地区长6油层沉积相研究[J].矿产勘查,2019,10(5):1054-1060.
WANG Fei,LIU Guowen,LIAO Yubin.Study on the sedimentary facies of Chang6 oil layer in Ansai Area of Ordos Basin[J].Mineral Exploration,2019,10(5):1054-1060.
[13] DOU Luxing,HOU Jiagen,ZHANG Li,et al.Distribution pattern of deltaic sand bodies controlled by syn-depositional faults in a rift lacustrine basin[J].Petroleum Exploration and Development,2020,47(3):572-584.
[14] 胡明,姜宏军,付广,等.似花状断裂密集带富油差异性——以渤海湾盆地南堡凹陷中浅层为例[J].石油与天然气地质,2016,37(4):528-537.
HU Ming,JIANG Hongjun,FU Guang,et al.Characterization of petroleum pooling patterns in dense flower-like fault belts:taking the middle and shallow layers in Nanpu Sag of Bohai Bay Basin as an example[J].Oil & Gas Geology,2016,37(4):528-537.
[15] 杜世涛,廖清志,黄传松,等.准噶尔盆地侏罗系页岩气地质特征及勘探潜力区识别[J].非常规油气,2022,9(5):43-50.
DU Shitao,LIAO Qingzhi,HUANG Chuansong,et al.Geological characteristics of Jurassic shale gas and identification of potential exploration areas in Junggar Basin[J].Unconventional Oil & Gas,2022,9(5):43-50.
[16] 司学强,袁波,彭博,等. 准噶尔盆地南缘冲断带侏罗系喀拉扎组沉积特征[J]. 新疆石油地质,2021,42(4):389-398.
SI Xueqiang, YUAN Bo, PENG Bo, et al. Sedimentary characteristics of Jurassic Kalazha Formation in the thrust belt on the southern margin of Junggar Basin[J]. Xinjiang Petroloeum Geology, 2021,42(4):389-398.