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Conceptual models for fracturing in fault related folds

Mining Science and Technology 2010年第1期20卷 103-108页

作者： LIN Xiubin CHEN Hanlin CHENG Xiaogan SHEN Zhongyan YANG Shufeng XIAO Ancheng Department of Earth Sciences Zhejiang University Hangzhou 310027 China Research Center for the Structures in Oil and Gas Bearing Basin Ministry of Education Hangzhou 310027 China

fault related folds and fractures, which always improve reservoirs and trap capacity, especially in the oil and gas fields in western China, are of extreme importance for oil and gas exploration. Based on four assumptions and fault related fold theory, we propose four conceptual models for fracturing in fault related folds, i.e., a simple-step parallel fault bend anticline, a simple-step parallel fault propagation anticline, a multiple-bend fault-bend fold and a break-forward imbricate. Fracture conditions depend on structural evolution and specific site conditions. A case study of the Kulongshan Anticline in the Jiuquan Basin shows that our conceptual models match reality data very well.

关键词： fracturing fault related fold oil and gas exploration

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Geometry and kinematics of tugerming structural belt in the east of Kuqa Depression,Tarim Basin

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Petroleum Research 2021年第4期6卷 333-350页

作者： Shaoye Chai Chuanxin Li Xuesong Lu Qingong Zhuo Yanjie Gong School of Energy Resources China University of Geosciences(Beijing)Beijing100083China PetroChina Research Institute of Petroleum Exploration and Development Beijing100083China Key Laboratory of Basin Structure and Hydrocarbon Accumulation CNPCBeijing100083China

Accurate interpretation of clutter seismic reflection is of great significance to make clear the structural geometry and kinematics *** on field investigations,boreholes and seismic data,forward modeling is carried out under the trishear model of fault-propagated fold principle,and the activity characteristics of the main faults in the study area are quantitatively analyzed using the balanced restoration technique,which may provide important indication for the potential petroleum exploration and *** results show that separated by Tuziluoke and Tugerming fault,the structural style of the study area can be divided into the deeply buried forelimb,the kink band and the tiny anticline backlimb *** Tuziluoke fault has been active with strong intensity since the sedimentary period of the Kuqa Formation and,which controls the formation of the growth strata in the deep buried forelimb of the Tuziluoke *** Tugerming fault has been active intermittently since the end of the Jurassic,causing the strata denudation of the Late Jurassic to Paleogene in varying degrees and the development of series of regulating *** multi-stage tectonic activities caused the structural high of the anticline migrated from east to west.

关键词： fault related fold Trishear Geometry Kinematics Balanced restoration Kuqa depression

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