Vertical Differential Structural Deformation of the Main Strike-slip Fault Zones in the Shunbei Area, Central Tarim Basin: Structural Characteristics, Deformation Mechanisms, and Hydrocarbon Accumulation Significance
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Vertical Differential Structural Deformation of the Main Strike-slip Fault Zones in the Shunbei Area, Central Tarim Basin: Structural Characteristics, Deformation Mechanisms, and Hydrocarbon Accumulation Significance
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We wish to sincerely thank the Northwest Oilfield Branch Company (SINOPEC) for granting us access to the data and use of the Petrel software platform. This study was financially supported by the China Petroleum & Chemical Corporation (SINOPEC) (Grant No. P18047-2), the National Natural Science Foundation of China (Grant No. U19B6003-01), and the National Key Research and Development Program of China (Grant No. 2017YFC0601405). And, we also sincerely thank the editors Dr. Zhang Shuichang and Dr. Fang Xiang, and reviewers for their work and valuable revision comments on our manuscript.

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    Vertical differential structural deformation (VDSD), one of the most significant structural characteristics of strike-slip fault zones (SSFZs) in the Shunbei area, is crucial for understanding deformation in the SSFZ and its hydrocarbon accumulation significance. Based on drilling data and high-precision 3-D seismic data, we analyzed the geometric and kinematic characteristics of the SSFZs in the Shunbei area. Coupled with the stratification of the rock mechanism, the structural deformations of these SSFZs in different formations were differentiated and divided into four deformation layers. According to comprehensive structural interpretations and comparisons, three integrated 3-D structural models could describe the VDSD of these SSFZs. The time-space coupling of the material basis (rock mechanism stratification), changing dynamic conditions (e.g., changing stress-strain states), and special deformation mechanism of the en echelon normal fault array uniformly controlled the formation of the VDSD in the SSFZs of the Shunbei area. The VDSD of the SSFZs in this area controlled the entire hydrocarbon accumulation process. Multi-stage structural superimposing deformation influenced the hydrocarbon migration, accumulation, distribution, preservation, and secondary adjustments.

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TIAN Fanglei, HE Dengfa, CHEN Jiajun, MAO Danfeng.2022. Vertical Differential Structural Deformation of the Main Strike-slip Fault Zones in the Shunbei Area, Central Tarim Basin: Structural Characteristics, Deformation Mechanisms, and Hydrocarbon Accumulation Significance[J]. ACTA GEOLOGICA SINICA(English edition),96(4):1415~1431

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  • 收稿日期:2022-02-09
  • 最后修改日期:2022-06-16
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  • 在线发布日期: 2022-08-29
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