Multi-scale evaluation of fractured carbonate reservoir and its implication to sweet-spot optimization: A case study of Tazhong oilfield, Central Tarim Basin, China

被引:11
作者
Chen, Siyu [1 ]
Wang, Yingjin [1 ]
Guo, Junyang [2 ]
He, Qinglin [2 ]
Yin, Xinran [3 ]
机构
[1] Shenzhen Univ, Coll Civil & Transportat Engn, Inst Deep Earth Sci & Green Energy, Guangdong Prov Key Lab Deep Earth Sci & Geotherma, Shenzhen 518060, Peoples R China
[2] Petrochina Tarim Oilfield Co, Explorat & Dev Res Inst, Korla 841000, Peoples R China
[3] SINOPEC, Shengli Oilfield Co, Lusheng Petr Dev Co Ltd, Dongying 257000, Shandong, Peoples R China
基金
中国国家自然科学基金; 中国博士后科学基金;
关键词
Tarim Basin; Fractured carbonate; Buried hill; FMI; Sweet-spot; QINSHUI BASIN; ACCUMULATION; UPLIFT; EXPLORATION; EVOLUTION; ORIGIN; AREA; GAS;
D O I
10.1016/j.egyr.2021.05.017
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Ordovician limestone and Cambrian dolomite are the main oil and gas producing layers in eastern Tazhong field, Tarim basin. Industrial oil flow has been obtained from drilling in this zone, proving that the Lower Paleozoic strata is important for oil and gas exploration and development. However, the main controlling factors and distribution of high-quality reservoirs remain unclear. Based on the logging constrained seismic inversion, FMI (Fullbore Formation MicroImager) log interpretation and core analysis of six wells, the main controlling factors of Paleozoic carbonate reservoirs in the study area were investigated. The results reveal that the two buried cuestas control the distribution of the Cambrian and Ordovician strata, the ratio of mudstone in north buried cuesta (NBC) is more than that in south buried cuesta (SBC), and the average porosity of epsilon(3xq) dolomite formation is more than that of O1- 2y limestone formation. FMI logging interpretation results show that fracture density of well TZ-1 is significantly higher than that of well TZ-2, combined with core observation and microscopic analysis we can believe that reconstructed dolomite reservoir has developed dissolution pores and vugs. By the means of seismic impedance reconstruction, the most favorable production areas, so-called sweetspots, are karst residual mounds that formed independent small anticlinal high points and have been depicted. Finally, total 28 traps in the Cambrian-Ordovician carbonate buried hill are characterized, covering an area of 66.4 km(2). 17 anticline traps with an area of 26.9 km(2) in dolomite reservoirs are optimized to be the next exploration targets. (C) 2021 The Authors. Published by Elsevier Ltd.
引用
收藏
页码:2976 / 2988
页数:13
相关论文
共 44 条
[1]   From fractures to flow: A field-based quantitative analysis of an outcropping carbonate reservoir [J].
Agosta, F. ;
Alessandroni, M. ;
Antonellini, M. ;
Tondi, E. ;
Giorgioni, M. .
TECTONOPHYSICS, 2010, 490 (3-4) :197-213
[2]   Fracture, Dissolution, and Cementation Events in Ordovician Carbonate Reservoirs, Tarim Basin, NW China [J].
Baques, Vinyet ;
Ukar, Estibalitz ;
Laubach, Stephen E. ;
Forstner, Stephanie R. ;
Fall, Andras .
GEOFLUIDS, 2020, 2020
[3]   Petroleum geological conditions and exploration potential of Lower Paleozoic carbonate rocks in Gucheng Area, Tarim Basin, China [J].
Cao Yinghui ;
Wang Shan ;
Zhang Yajin ;
Yang Min ;
Yan Lei ;
Zhao Yimin ;
Zhang Junlong ;
Wang Xiandong ;
Zhou Xiaoxiao ;
Wang Hongjiang .
PETROLEUM EXPLORATION AND DEVELOPMENT, 2019, 46 (06) :1165-1181
[4]   Analysis of hydraulic fracturing techniques: hybrid fuzzy approaches [J].
Davarpanah, Afshin ;
Shirmohammadi, Reza ;
Mirshekari, Behnam ;
Aslani, Alireza .
ARABIAN JOURNAL OF GEOSCIENCES, 2019, 12 (13)
[5]   Integrated production logging tools approach for convenient experimental individual layer permeability measurements in a multi-layered fractured reservoir [J].
Davarpanah, Afshin ;
Mirshekari, Behnam ;
Behbahani, Taraneh Jafari ;
Hemmati, Mahmoud .
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY, 2018, 8 (03) :743-751
[6]   Structural characterization of intracratonic strike-slip faults in the central Tarim Basin [J].
Deng, Shang ;
Li, Huili ;
Zhang, Zhongpei ;
Zhang, Jibiao ;
Yang, Xin .
AAPG BULLETIN, 2019, 103 (01) :109-137
[7]  
Ding Z.W., 2020, TARIM BASIN PETROL E, V47, P84
[8]   Accumulation conditions and play targets of oil and gas in the Cambrian subsalt dolomite, Tarim Basin, NW China [J].
Du Jinhu ;
Pan Wenqing .
PETROLEUM EXPLORATION AND DEVELOPMENT, 2016, 43 (03) :360-374
[9]   Microfacies and depositional environments of the Late Ordovician Lianglitage Formation at the Tazhong Uplift in the Tarim Basin of Northwest China [J].
Gao, Da ;
Lin, Changsong ;
Yang, Haijun ;
Zuo, Fanfan ;
Cai, Zhenzhong ;
Zhang, Lijuan ;
Liu, Jingyan ;
Li, Hong .
JOURNAL OF ASIAN EARTH SCIENCES, 2014, 83 :1-12
[10]   Advances in carbonate exploration and reservoir analysis [J].
Garland, J. ;
Neilson, J. ;
Laubach, S. E. ;
Whidden, K. J. .
ADVANCES IN CARBONATE EXPLORATION AND RESERVOIR ANALYSIS, 2012, 370 :1-15