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利用线形流形的射影方法推导出新息序列统计特性，构造新息AKF，基于新息序列不断地修正状态噪声和量测噪声，实时地反映模型当前真实的统计特性。通过隔河岩大坝实测数据处理，表明该方法能很好地提高随机模型不准确和变形突变影响下的变形估计与预报精度。 相似文献
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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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下载免费PDF全文 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. 相似文献
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塔北古隆起的三维地质结构及相关问题探讨 总被引：1，自引：0，他引：1
盆地深层构造地质学的研究可以揭示沉积盆地早期的物质记录，揭示盆地深层地质结构、构造样式及其变化特点，还原构造古地理环境等。塔北古隆起是塔里木盆地油气最富集的构造单元之一，是研究板块内部变形的理想场所。对塔北古隆起地质结构的精细解析有利于加深对古隆起控油气理论的理解，对深层海相油气勘探具有指导意义。文中基于整个塔北地区的地震资料以及大量钻井资料，建立其三维地质结构，通过Petrel软件实现三维可视化。塔北古隆起存在12个不整合面，可划分为五大构造层：基底(AnZ)、震旦系-下古生界(ZS)、上古生界(D3dP)、中生界(TK1)、新生界(EQ)构造层。塔北古隆起的地质结构受其深层主干断裂系统控制，依据深层主干断裂发育模式的差异，可将古隆起分为4段：(Ⅰ)温宿凸起段；(Ⅱ)英买力低凸起段；(Ⅲ)哈拉哈塘凹陷与轮南低凸起段；(Ⅳ)草湖凹陷与库尔勒鼻状凸起段。哈拉哈塘凹陷库尔勒鼻状凸起(甚至包括孔雀河斜坡)的古生界构造层保留了NE-SW向的古生代构造形迹，与近E-W向深层主干断裂系统斜交，可能指示塔北古隆起在晚古生代处于右旋压扭性或NW-SE向主应力环境，直到侏罗纪-早白垩世才发生改变。 相似文献
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