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Structure and Filling Characteristics of Paleokarst Reservoirs in the Northern Tarim Basin, Revealed by Outcrop, Core and Borehole Images

文献类型：期刊论文

作者Tian, Fei1; Lu, Xinbian2; Zheng, Songqing3; Zhang, Hongfang3; Rong, Yuanshuai2; Yang, Debin2; Liu, Naigui1
刊名OPEN GEOSCIENCES
出版日期2017
卷号9期号:1页码:266-280
ISSN号2391-5447
关键词Paleokarst Reservoirs Structure Filling Borehole Images Tarim Basin
DOI10.1515/geo-2017-0022
文献子类Article
英文摘要The Ordovician paleokarst reservoirs in the Tahe oilfield, with burial depths of over 5300 m, experienced multiple phases of geologic processes and exhibit strong heterogeneity. Core testing can be used to analyse the characteristics of typical points at the centimetre scale, and seismic datasets can reveal the macroscopic outlines of reservoirs at the >10-m scale. However, neither method can identify caves, cave fills and fractures at the meter scale. Guided by outcrop investigations and calibrations based on core sample observations, this paper describes the interpretation of high longitudinal resolution borehole images, the identification of the characteristics of caves, cave fills ( sedimentary, breccia and chemical fills) and fractures in single wells, and the identification of structures and fill characteristics at the meter scale in the strongly heterogeneous paleokarst reservoirs. The paleogeomorphology, a major controlling factor in the distribution of paleokarst reservoirs, was also analysed. The results show that one well can penetrate multiple cave layers of various sizes and that the caves are filled with multiple types of fill. The paleogeomorphology can be divided into highlands, slopes and depressions, which controlled the structure and fill characteristics of the paleokarst reservoirs. The results of this study can provide fundamental meter-scale datasets for interpreting detailed geologic features of deeply buried paleocaves, can be used to connect core- and seismic-scale interpretations, and can provide support for the recognition and development of these strongly heterogeneous reservoirs.
WOS关键词TAHE OIL-FIELD ; TABEI UPLIFT ; NW CHINA ; CARBONATE RESERVOIRS ; WESTERN CHINA ; ORDOVICIAN ; SYSTEM ; ARCHITECTURE ; KARST ; SEA
WOS研究方向Geology
语种英语
出版者DE GRUYTER OPEN LTD
WOS记录号WOS:000408793300001
资助机构Chinese National Major Fundamental Research Developing Project(2017ZX05008-004) ; Chinese National Natural Science Foundation(41502149 ; China Postdoctoral Foundation Funded Project(2015M570148) ; 41372151 ; 41102078) ; Chinese National Major Fundamental Research Developing Project(2017ZX05008-004) ; Chinese National Natural Science Foundation(41502149 ; China Postdoctoral Foundation Funded Project(2015M570148) ; 41372151 ; 41102078) ; Chinese National Major Fundamental Research Developing Project(2017ZX05008-004) ; Chinese National Natural Science Foundation(41502149 ; China Postdoctoral Foundation Funded Project(2015M570148) ; 41372151 ; 41102078) ; Chinese National Major Fundamental Research Developing Project(2017ZX05008-004) ; Chinese National Natural Science Foundation(41502149 ; China Postdoctoral Foundation Funded Project(2015M570148) ; 41372151 ; 41102078)
源URL[http://ir.iggcas.ac.cn/handle/132A11/61896]  
专题地质与地球物理研究所_中国科学院油气资源研究重点实验室
通讯作者Tian, Fei
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China
2.SINOPEC, Tahe Oilfield Branch Co, Urumqi 830011, Peoples R China
3.SINOPEC, Petr Explorat & Prod Res Inst, Beijing 100083, Peoples R China
推荐引用方式
GB/T 7714		 Tian, Fei,Lu, Xinbian,Zheng, Songqing,et al. Structure and Filling Characteristics of Paleokarst Reservoirs in the Northern Tarim Basin, Revealed by Outcrop, Core and Borehole Images[J]. OPEN GEOSCIENCES,2017,9(1):266-280.
APA Tian, Fei.,Lu, Xinbian.,Zheng, Songqing.,Zhang, Hongfang.,Rong, Yuanshuai.,...&Liu, Naigui.(2017).Structure and Filling Characteristics of Paleokarst Reservoirs in the Northern Tarim Basin, Revealed by Outcrop, Core and Borehole Images.OPEN GEOSCIENCES,9(1),266-280.
MLA Tian, Fei,et al."Structure and Filling Characteristics of Paleokarst Reservoirs in the Northern Tarim Basin, Revealed by Outcrop, Core and Borehole Images".OPEN GEOSCIENCES 9.1(2017):266-280.

入库方式： OAI收割

来源：地质与地球物理研究所

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