/
| 〈 |
|
〉 |
Marine Origin Petroleum Geology >
Development characteristics of braided river delta under geomorphic control of fault step zone in Qiongdongnan Basin: taking the 3rd member of Oligocene Lingshui Formation in the northern slope of Baodao Sag as an example
|
DENG Xiaoliang, Engineer, mainly engaged in petroleum geology and reservoir geology. Add: Yufu International Building, Changbin 3rd Rd., Xiuying District, Haikou, Hainan 570312, China. E-mail: dengxl8@cnooc.com.cn |
Received date: 2024-09-02
Revised date: 2024-10-14
Online published: 2025-05-13
Qiongdongnan Basin, a passive continental deep-water basin in the north of the South China Sea, is an important natural gas base in China. The deep Oligocene Lingshui Formation in Qiongdongnan Basin represent a primary target for forthcoming exploration in the South China Sea, however, due to limited exploration efforts, the sedimentary system of the Lingshui Formation remains inadequately characterized. Based on core, logging and 3D seismic data, the sedimentary characteristics of Lingshui Formation in northern slope of Baodao Sag, Qiongdongnan Basin are systematically dissected. It is clear that Lingshui Formation can be subdivided into two third-order sequences. The sedimentation of the 3rd member of Lingshui Formation is a complete three-order sequence with low, transgressive and high system domains. Under the control of the fault co directional transition zone and transition slope formed by the differential activity of F12 fault, several large differentiated river delta groups of different scales in the west and east are developed in the 3rd member of Lingshui Formation. The fault step zone mainly developed the underwater distributary channel of braided river delta front in the late low and high system tracts, and it is a high-quality reservoir development interval with the thickness of sand body being large, the particle size being coarser, the separation being better, and the physical property being better. Therefore, the development model of multistage fault-controlled material source and transition fault-controlled sand body distribution of the 3rd member of Lingshui Formation in the northern fault step zone of Baodao Sag is established. The high quality reservoir of large-scale delta distributary channel of the 3rd member of Lingshui Formation directly covers the source rock of Yacheng Formation and forms a favorable transport system with source rock-linked fault. And it is covered by thick transgressive shallow-sea mudstone deposited in late depression period. High-quality reservoer-cap combination and transport system are the key to forming large gas fields in Baodao Sag, and are worth of more attention in the future exploration.
DENG Xiaoliang , WANG Ziling , YOU Li , ZHAN Yeping , ZHOU Chen . Development characteristics of braided river delta under geomorphic control of fault step zone in Qiongdongnan Basin: taking the 3rd member of Oligocene Lingshui Formation in the northern slope of Baodao Sag as an example[J]. Marine Origin Petroleum Geology, 2025 , 30(1) : 30 -40 . DOI: 10.3969/j.issn.1672-9854.2025.01.003
| [1] |
谢玉洪. 南海北部陆缘盆地深水区油气勘探新认识及攻关方向[J]. 天然气工业, 2024, 44(1): 13-25.
|
| [2] |
屈红军, 张功成, 孙晓晗, 等. 中国深水盆地油气勘探及成藏研究进展: 以中国南海北部为例[J]. 西北大学学报(自然科学版), 2022, 52(6): 1028-1043.
|
| [3] |
张功成, 纪沫, 陈莹, 等. 琼东南盆地“气聚集带”的成藏特征与勘探潜力[J]. 石油学报, 2024, 45(1): 226-240.
|
| [4] |
吴克强, 解习农, 裴健翔, 等. 超伸展陆缘盆地深部结构及油气勘探意义: 以琼东南盆地为例[J]. 石油与天然气地质, 2023, 44(3): 651-661.
|
| [5] |
尤丽, 江汝锋, 龚宇, 等. 琼东南盆地深水海底扇岩性圈闭成藏主控因素与勘探突破[J]. 地球科学, 2024, 49(2): 749-758.
|
| [6] |
尤丽, 吴仕玖, 代龙, 等. 琼东南盆地乐东—陵水凹陷梅山组海底扇高温超压储层成岩-孔隙演化[J]. 海相油气地质, 2024, 29(3): 280-290.
|
| [7] |
刘子玉, 贾万丽, 李建平, 等. 浊积扇沉积构成及主要单元储层差异:以琼东南盆地梅山组为例[J]. 地质科学, 2024, 59(5): 1268-1279.
|
| [8] |
李建平, 熊连桥, 黄琪斐, 等. 琼东南盆地梅山组浊积扇分类及其勘探意义[J]. 油气地质与采收率, 2023, 30(6): 1-12.
|
| [9] |
付超, 谢玉洪, 王晖, 等. 深水峡谷复合浊积砂体内隔夹层发育类型与沉积成因: 以琼东南盆地中央峡谷为例[J]. 天然气工业, 2023, 43(5): 23-33.
|
| [10] |
付超, 谢玉洪, 赵雨初, 等. 深水峡谷上游复合浊积砂岩储层类型及其展布规律: 以琼东南盆地中央峡谷陵水气田为例[J]. 石油与天然气地质, 2024, 45(2): 516-529.
|
| [11] |
徐长贵, 吴克强, 裴健翔, 等. 超深水超浅层天然气富集机理与成藏模式: 以琼东南盆地陵水36-1气田为例[J]. 石油勘探与开发, 2025, 52(1):44-56.
|
| [12] |
裴健翔, 王宇. 琼东南盆地深水区第四系超浅层大型气藏盖层类型及封盖机理[J]. 地球科学, 2025, 50(1):144-157.
|
| [13] |
裴健翔, 罗威, 呙诗阳, 等. 琼东南盆地宝岛凹陷南部渐新统陵水组三段三角洲的发现及石油地质意义[J]. 石油勘探与开发, 2024, 51(2): 299-310.
|
| [14] |
唐武, 谢晓军, 熊连桥, 等. 琼东南盆地深层源汇系统特征及富砂性预测:以松南低凸起中段陵三段为例[J]. 海洋地质与第四纪地质, 2024, 44(4): 123-133.
|
| [15] |
童亨茂, 范彩伟, 童传新, 等. 琼东南盆地宝岛变换带的特征、类型及其成因机制[J]. 石油与天然气地质, 2015, 36(6): 897-905.
|
| [16] |
赵海涛, 童亨茂. 琼东南盆地北部地区变换带构造特征及地质意义[J]. 中国石油大学学报(自然科学版), 2021, 45(2): 11-20.
|
| [17] |
廖计华, 王华, 吕明, 等. 琼东南盆地深水区松南—宝岛凹陷同沉积断裂活动及其对沉积充填的控制[J]. 中国矿业大学学报, 2016, 45(2): 336-346.
|
| [18] |
钟佳, 杨希冰, 朱沛苑, 等. 琼东南盆地宝岛—长昌凹陷陵水组储层差异演化特征[J]. 地球科学, 2019, 44(8): 2665-2676.
|
| [19] |
邓勇, 裴健翔, 胡林, 等. 南海西部海域宝岛21-1气田的发现与成藏模式[J]. 中国海上油气, 2022, 34(5): 13-22.
|
| [20] |
尤丽, 权永彬, 庹雷, 等. 琼东南盆地深水区宝岛21-1气田天然气来源及输导体系[J]. 石油与天然气地质, 2023, 44(5): 1270-1278.
|
| [21] |
徐长贵. 中国近海油气勘探新进展与勘探突破方向[J]. 中国海上油气, 2022, 34(1): 9-16.
|
| [22] |
徐长贵, 尤丽. 琼东南盆地松南—宝岛凹陷北坡转换带特征及其对大中型气田的控制[J]. 石油勘探与开发, 2022, 49(6): 1061-1072.
|
| [23] |
杨金海, 杨希冰, 周杰, 等. 琼东南盆地深水区松南—宝岛凹陷反转构造带发育特征及油气地质意义[J]. 海洋学报, 2019, 41(5): 97-106.
|
| [24] |
李增学, 刘莹, 李晓静, 等. 琼东南盆地古近纪泥炭沼泽破坏与重建作用对煤型源岩物质形成的控制[J]. 石油与天然气地质, 2022, 43(6): 1309-1320.
|
| [25] |
张远泽, 漆家福, 吴景富. 南海北部新生代盆地断裂系统及构造动力学影响因素[J]. 地球科学, 2019, 44(2): 603-625.
|
| [26] |
邓孝亮, 张迎朝, 陆江, 等. 文昌B凹陷北坡珠海组潮汐沉积特征及演化[J]. 沉积学报, 2020, 38(6): 1313-1326.
|
/
| 〈 |
|
〉 |