Article
Energy & Fuels
Zhang Wenbiao, Duan Taizhong, Li Meng, Zhao Huawei, Shang Xiaofei, Wang Yang
Summary: This study focuses on the types and characteristics of Ordovician fault-controlled karst reservoir architectures in the Tuoputai area of the Tahe oilfield, using various data analysis methods. Different levels of architectural elements are identified based on the concept of genetic geologic body, with specific characterization techniques optimized for each element. The interpretation and characterization technology for fault-controlled karst reservoirs in three-dimensional space has been developed, complementing the development theory and technologies for this type of reservoirs in the Tahe oilfield.
PETROLEUM EXPLORATION AND DEVELOPMENT
(2021)
Article
Energy & Fuels
Zhang San, Jin Qiang, Hu Mingyi, Han Qichao, Sun Jianfang, Cheng Fuqi, Zhang Xudong
Summary: By analyzing the karst drainages and flowing channels in different paleogeomorphic units of the Tahe area, Tarim Basin, it was found that the differential structures of karst zone and hydrocarbon distribution lead to variations in oil and gas accumulation. The karst paleogeomorphy of Ordovician in Tahe area consists of watershed, karst valley, and karst basin, each with unique water flowing patterns contributing to differing levels of oil and gas production.
PETROLEUM EXPLORATION AND DEVELOPMENT
(2021)
Article
Geosciences, Multidisciplinary
Yong-Bin Niu, Meng-Yuan Cheng, Li-Jun Zhang, Jian-Hua Zhong, Sheng-Xin Liu, Duan Wei, Zi-Lu Xu, Pei-Jun Wang
Summary: Bioturbation plays a significant role in enhancing the reservoir capacity of tight reservoirs. This study examined the petrophysical characteristics of bioturbation and host sediments in carbonate rocks and analyzed their effects on the properties of the rocks. The results show that multiple burrows created by bioturbation formed large-scale bioturbated carbonate rocks with lateral continuity and vertical connectivity, which were further improved by diagenesis.
JOURNAL OF PALAEOGEOGRAPHY-ENGLISH
(2022)
Article
Chemistry, Multidisciplinary
Tao Feng, Yong Feng, Jiguang Tang, Yue Cui, Bin Wang, Fuxing Peng, Dechao Qin, Yue Zhang
Summary: The main types of diagenesis and diagenetic minerals in the Ordovician ultradeep carbonate reservoir were determined through microscopic observations, fluorescence detection, and luminescence analysis. The time sequence of reservoir diagenesis and hydrocarbon-related events was established by analyzing hydrocarbon inclusions and their relationship with host minerals. The Ordovician formations experienced multiple periods of hydrocarbon charging and structural transformation in relation to diagenesis processes.
Article
Energy & Fuels
Zhang San, Jin Qiang, Sun Jianfang, Wei Hehua, Cheng Fuqi, Zhang Xudong
Summary: The formation, fracture-caves types and hydrocarbon distribution of hoodoo-upland on the Ordovician karst slope in the Tahe area, Tarim Basin, were discussed by analyzing faults and strata thickness. The positive flower structure under the settings of strike-slip compression controlled the early formation of the hoodoo-upland, resulting in differences of drainage distribution and karstification. The hoodoo-upland with lean water suffered weaker karstification, had thicker residual stratum, and was higher in terrain, forming a complex network of fractures and caves in rainy season.
PETROLEUM EXPLORATION AND DEVELOPMENT
(2021)
Article
Energy & Fuels
Jinhu Zhang, Youxing Yang, Yongjin Gao, Sumei Li, Bingsong Yu, Xiaoxing Gong, Zhongkai Bai, Miaoqing Miao, Yuanyin Zhang, Zhichao Sun, Zhaolin Qi
Summary: This study focuses on the Neogene hydrocarbons of the Wensu uplift along with their geochemical characteristics and origin. The results show that crude oils from the Wensu uplift display typical lacustrine characteristics, distinct from the adjacent marine crude oils.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Energy & Fuels
Jian-Ping Bao, Cui-Shan Zhu, Xi Yang
Summary: This study analyzed wax compounds in marine oils from the Tarim Basin in China and identified various hopanes and secohopanes. The findings suggest that these compounds could serve as important indicators for oil-source correlation.
Article
Energy & Fuels
Bao Jianping, Yang Xi, Zhu Cuishan
Summary: 8,14-secohopanes were detected in marine oils from the Tazhong area in the Tarim Basin using gas chromatography-mass spectrometry, with their distributions and compositions compared to study their potential significances in oil-source correlation. Different distributions of 8,14-secohopanes in different types of end-member oils suggest their geochemical significance, while the relative abundance of these biomarkers can effectively distinguish between different crude oils from the Tazhong area. The formation of 8,14-secohopanes in type-A and type-B oils may require specific geological-geochemical conditions.
PETROLEUM EXPLORATION AND DEVELOPMENT
(2021)
Article
Energy & Fuels
N'Guessan Francois De Sales Konan, Meijun Li, Shengbao Shi, Amoako Kojo, Abdulkareem Toyin, Nancy Pearl Osei Boakye, Tiantian Li
Summary: This study provides new evidence for source input contribution and identifies the controlling factors of isotope composition in oils from three oilfields in the Tarim Basin. It suggests that the delta C-13 values of certain aromatic isomers plotted against specific ratios can effectively discriminate organic matter variations in different oilfields. The study also reveals that the selected oil samples are derived from a mixing of marine and terrestrial sources, with marine organic matter dominating the oils from Tahe and Yakela.
Article
Energy & Fuels
Hanyu Deng, Haizu Zhang, Yiman Zhang, Naidong Chen, Tao Mo, Bin Cheng, Zewen Liao
Summary: This study successfully establishes a line chart model for distinguishing light oil and condensate based on the analysis of the component and stable hydrogen isotope distribution of C-7 light hydrocarbons. By comparing the differences between different values, the sedimentary facies of the source rocks for light oil and condensate can be effectively determined.
INTERNATIONAL JOURNAL OF COAL GEOLOGY
(2023)
Article
Environmental Sciences
Feng Geng, Bin Li, Suju Yang, Beicheng Hu, Jianchao Zheng
Summary: This study improves the accuracy of reserve calculation for fractured-vuggy reservoirs in the Tahe Oilfield by using the probability method. The research findings indicate that reservoirs controlled by weathering crust are the most favorable, while Aidingbei and Yuqi porous reservoirs have better resource prospects.
ENVIRONMENTAL EARTH SCIENCES
(2022)
Article
Geosciences, Multidisciplinary
Wenbiao Zhang, Zhiliang He, Taizhong Duan, Meng Li, Huawei Zhao
Summary: This study successfully quantitatively characterized and geologically modeled the fault/fracture-controlled paleokarsts through the establishment of a hierarchical structure and a hierarchical modeling method. The research was validated in the Tahe oilfield and can reflect the spatial structure of fault/fracture-controlled paleokarst carbonate reservoirs.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Huabiao Qiu, Shang Deng, Jibiao Zhang, Huixi Lin, Cheng Huang, Jun Han, Wei Lin, Xin Zhu
Summary: This study uses high-quality 3-D seismic data to investigate the strike-slip fault network in the Guchengxu High of the Tarim Basin and its relationship with the Tethys tectonics. The results show that the fault network is an immediate response to the Tethys tectonics at plate boundaries. The different orientations of the faults are a result of sequential evolution, and their formation can be linked to Late Ordovician orogeny and internal tectonic activities.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Energy & Fuels
Wenlong Dang, Gang Gao, Xincai You, Jun Wu, Shiju Liu, Qi Yan, Wenjun He, Liulinbo Guo
Summary: Based on geological and geochemical analysis, as well as thermal simulation experiments, the study investigates the source, genesis, and distribution of different types of oils in the Mahu large oil province. It finds that the Permian Fengcheng Formation has the highest hydrocarbon generation potential, while other formations have lower potential with different types of organic matter. The oils in the Mahu Sag can be classified into three types, with different distribution patterns and levels of maturity. The study provides important guidance for oil exploration and prediction in the Mahu Sag.
PETROLEUM EXPLORATION AND DEVELOPMENT
(2023)
Article
Energy & Fuels
Yang Peng, Liu Keyu, Li Zhen, Mcinnes Brent Ian Alexander, Liu Jianliang
Summary: Based on various analyses, the study systematically determines the charge and evolution history of the YJ1X ultra-deep oil reservoir in the southwestern part of the Tabei Uplift. It reveals that the reservoir oil, free oil, and inclusion oil have similar characteristics and maturities, suggesting a common marine source. The study also identifies two types of oil inclusion assemblages in the reservoir and demonstrates that the reservoir experienced one oil charge during the Early Devonian and has been well preserved since.
PETROLEUM EXPLORATION AND DEVELOPMENT
(2022)