平衡剖面的正演模拟方法
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摘要
简要介绍了复杂构造区平衡剖面解释中的正演模拟方法，并以塔里木盆地库车拗治中一个挤压构造的解释作为例证。正演模拟方法对于确定复杂构造的解释方案极为有用，其过程包括初步研究构造剖面（或地震剖面）、提出初始正演模型、将平衡的正演模型与构造剖面对比、模型修正、最终确定解释方案。认为库车拗陷中的哈桑托开背斜位于南天山前陆逆冲带的前锋三角带，由反冲断层、底板断层和逆冲断层的相互作用所形成，目前的构造面貌系多期运动的叠加。该区由于具备有利的烃类聚集条件，可望成为重要的勘探目标。图３参１１
The forward modeling of balanced cross-sections is discussed in structurally complex region. An example of compressional structure is given in Kuche depression, Tarim Basin. Forward modeling method is proven to be one of very useful tools in explaining complex structures anddefining final results. The process of forward modeling includes researching structural sections (orseismic sections), making a primitive forward model, comparing balanced forward model bath thestructural an d modifying model etc The Hasongtuokai anticline in Kuche depression is controlledbybackthrust, floorthrust and thru st that it is located in the front delta zone of foreland thrust and foldbelts in southern Tianshan mountain. Sturctural feathers of the Hasongtuokai anticline at present dayare caused by multiple phases superimposed tectonism. There are rich in hydrocarbon accumulationin this region and will become one of the important prospect area for oil and gas.
The forward modeling of balanced cross-sections is discussed in structurally complex region. An example of compressional structure is given in Kuche depression, Tarim Basin. Forward modeling method is proven to be one of very useful tools in explaining complex structures anddefining final results. The process of forward modeling includes researching structural sections (orseismic sections), making a primitive forward model, comparing balanced forward model bath thestructural an d modifying model etc The Hasongtuokai anticline in Kuche depression is controlledbybackthrust, floorthrust and thru st that it is located in the front delta zone of foreland thrust and foldbelts in southern Tianshan mountain. Sturctural feathers of the Hasongtuokai anticline at present dayare caused by multiple phases superimposed tectonism. There are rich in hydrocarbon accumulationin this region and will become one of the important prospect area for oil and gas.
引文
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