Hydrocarbon Accumulation Law and Favorable Target Selection in Damiao Sag, Erlian Basin

doi:10.3969/j.issn.1006-6535.2023.01.007

Abstract

Abstract: In view of poor understanding of the tectonic development pattern and hydrocarbon accumulation law in Damiao Sag, Erlian Basin, the tectonic development pattern, reservoir development mode, and hydrocarbon accumulation law and high yield of Damiao Sag, Erlian Basin were studied based on the sedimentary facies study and logging-seismic joint inversion technology, so as to determine the resource potential and favorable target areas of Damiao Sag, Erlian Basin. The study results show that alluvial fan - fan delta - lake sedimentary system is mainly developed in the early stage of Damiao Sag; the glutenite in the alluvial fan, the fine sandstone in the remote distal bar and the glutenite in the shallow lake are developed with excellent reservoirs, and the semi-deep and deep lake mudstone is developed with good source beds; the favorable hydrocarbon accumulation is mainly distributed around hydrocarbon-rich sags, and Ai′ershan Formation and Member 1 of Tengge′er Formation are selected as the favorable exploration targets in Damiao Sag, Erlian Basin, with an estimated resource of 150.44×10⁴t, one well deployed, and an expected production capacity of 10 t/d. The study results are of great significance for the development of replacement areas of favorable oil and gas resources in Erlian Basin.

Key words: sedimentary facies, tectonic development, accumulation law, well deployment, Damiao Sag, Erlian Basin

CLC Number:

TE122

Qiu Wenbo, Cai Qinqin, Zhang Xuerui, Jiang Shaolong, Guo Long, Yuan Ziqi. Hydrocarbon Accumulation Law and Favorable Target Selection in Damiao Sag, Erlian Basin[J]. Special Oil & Gas Reservoirs, 2023, 30(1): 50-56.

References

[1] 林彧涵,蒋有录,苏圣民,等.二连盆地乌兰花凹陷下白垩统烃源岩有机碳含量预测[J].大庆石油地质与开发,2021,40(2):143-152.
LIN Yuhan,JIANG Youlu,SU Shengmin,et al.TOC prediction of Lower Cretaceous hydrocarbon source rock in Wulanhua Sag of Erlian Basin[J].Petroleum Geology & Oilfield Development in Daqing,2021,40(2):143-152.
[2] 曹思佳,李鹏,刘冬民,等.乌兰花凹陷转换带特征及控藏作用[J].石油地球物理勘探,2021,56(2):380-388.
CAO Sijia,LI Peng,LIU Dongmin,et al.Characteristics of the structural transition zone and its controll on reservoirs in Wulanhua Depression[J].Oil Geophysical Prospecting,2021,56(2):380-388.
[3] 郑立巍,董书宁,林进,等.二连盆地白北凹陷腾格尔组储层特征及分布规律[J].科学技术与工程,2019,19(26):141-150.
ZHENG Liwei,DONG Shuning,LIN Jin,et al.Reservoir characteristics and distribution law of Tengger Formation in Baibei Sag,Erlian Basin[J].Science Technology and Engineering,2019,19(26):141-150.
[4] 彭宇,熊骥禹,谢近平,等.二连盆地乌兰花凹陷安山岩成藏主控因素分析[J].天然气与工程,2019,37(4):83-89.
PENG Yu,XIONG Jiyu,XIE Jinping,et al.Analysis on accumulation controlling factors of andesite in Wulanhua Sag of Erlian Basin[J].Natural Gas and Oil,2019,37(4):83-89.
[5] 徐春华.顺向断块断层及地层倾角与断层启闭性的关系——以济阳坳陷勘探实践为例[J].断块油气田,2020,27(6):729-733.
XU Chunhua.Relationship between fault opening-closing and dip angles of fault and stratum in forward fault block:taking exploration practice of Jiyang Depression as an example[J].Fault-Block Oil & Gas Field,2020,27(6):729-733.
[6] 晏安语.济阳坳陷埕岛地区下古生界潜山断裂特征及控藏作用[J].科学技术与工程,2020,20(15):6011-6017.
YAN Anyu.Characteristics and control of faults on reservoir of lower Paleozoic buried hill in Chengdao Area,Jiyang Depression[J].Science Technology and Engineering,2020,20(15):6011-6017.
[7] 王志伟.新北油田右旋走滑应力场内断层封堵性及其对成藏的控制作用[J].地质科技情报,2019,38(4):145-152.
WANG Zhiwei.Analysis of fault sealing in the right hand strike-slip stress field of the Xinbei Oilfield and its controlling effect on the reservoir[J].Geological Science and Technology Information,2019,38(4):145-152.
[8] 赵孟军,王招明,张水昌,等.库车前陆盆地天然气成藏过程及聚集特征[J].地质学报,2005,79(3):413-422.
ZHAO Mengjun,WANG Zhaoming,ZHANG Shuichang,et al.Ac
cumulation and features of natural gas in the Kuqa Foreland Basin[J].Acta Geologica Sinica,2005,79(3):413-422.
[9] HINDLE A D.Petroleum migration pathways and charge concentration:a three 2 dimensional model[J].AAPG Bulletin,1997,81(9):1451-1481.
[10] 罗群,庞雄奇,姜振学.一种有效追踪油气运移轨迹的新方法——断面优势运移通道的提出及其应用[J].地质论评,2005,51(2):156-162.
LUO Qun,PANG Xiongqi,JIANG Zhenxue.A new method for effective trace petroleum migration path-concept of fault section dominant migrating channel and its application[J].Geological Review,2005,51(2):156-162.
[11] 周波,罗晓容,侯平,等.单个裂隙中油运移实验及特征分析[J].地质学报,2006,80(3):454-458.
ZHOU Bo,LUO Xiaorong,HOU Ping,et al.Experiments and characterization of oil migration in a single fracture[J].Acta Geologica Sinica,2006,80(3):454-458.
[12] 宋岩,夏新宇,王震亮,等.天然气运移和聚集动力的耦合作用[J].科学通报,2001,46(22):1906-1910.
SONG Yan,XIA Xinyu,WANG Zhenliang,et al.Coupling of natural gas transport and aggregation dynamics[J].Chinese Science Bulletin,2001,46(22):1906-1910.
[13] 柳广弟,李剑,李景明,等.天然气成藏过程有效性的控制因素与评价方法[J].天然气地球科学,2005,16(1):1-6.
LIU Guangdi,LI Jian,LI Jingming,et al.The controls and the assessment method for the effectiveness of natural gas migration and accumulation process[J].Natural Gas Geoscience,2005,16(1):1-6.
[14] 付广,孙永河,吕延防.输导通道类型对天然气聚集效率的影响[J].地质论评,2006,52(2):236-243.
FU Guang,SUN Yonghe,LYU Yanfang.Influence of transporting pathway on gas accumulation efficiency[J].Geological Review,2006,52(2):236-243.
[15] COX S F.Faulting processes at high fluid pressures:an example of fault valve behavior from the Wattle Gully Fault,Victoria,Australia[J].Journal of Geophysical Research,1995,100(B7):12841-12859.