西藏伦坡拉盆地成藏动力学系统分析

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西藏伦坡拉盆地烃源岩经历了三期生油过程,发生了三期克注成藏作用。油气运移沿断层、不整合、孔隙或裂 隙连络体系进行,运移驱动力在牛堡组沉积期为异常高压,而丁青湖组沉积期则为静水压力。成藏动力学系统可分为下 部自源封闭、中部它源一自源半封闭一封闭及顶部它源开放一半封闭三种类型。在帕格拉挠曲带、爬错凹陷南斜坡、蒋日阿 错南斜坡及罗玛迪库区带以寻找自源封闭成藏动力学系统的油气藏为主;而在北部的红星梁-低鄂总、罗玛迪库以中部 它源-自源半封闭-封闭的成藏动力学系统的油气藏为主,同时兼顾顶部它源开放-半封闭成藏动力学系统的油气藏勘 探。 The source rock of the Lunpola Basin in Tibet has undergone three stages of oil generation and three episodes of Ke-injection reservoir formation have taken place. Hydrocarbon migration is carried out along fault, unconformity, pore or fissure contact system, and the driving force for migration is abnormally high pressure in the Niubo Formation during sedimentation, while hydrostatic pressure is the Dingqing Lake sedimentary period. Accumulation kinetics system can be divided into the lower self-source closed, the middle of its source of a semi-closed and a closed source and the top of the open source and closed half of the three types. In the Pugla flexure zone, the south slope of the Climbing Depression, the southern slope of the Chiang Rai-Ari and the Luomadiku area are mainly oil and gas reservoirs looking for self-closed dynamic system of accumulation and accumulation. In the northern part, E, Roma and Di Mukai in the central source it - from the source semi-closed-closed reservoir forming dynamic system of reservoirs dominated, taking into account the top of its open source - semi-closed reservoir dynamics system of reservoir exploration.
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