盐丘

Salt Dome is a mushroom-shaped or plug-shaped diapir made of salt , commonly having an overlying cap rock .

盐丘是褶曲的平面形态中浑圆形褶曲的一种，穹隆构造，其核部为很厚的岩盐层，并刺穿上覆岩层，此种穹隆称为盐丘

Keywords salt dome;velocity field;subsalt structure;processing in time domain;ray

盐丘； 速度场；盐下构造；时间域处理；射线

In seismic exploration, subsurface salt dome , as a high-velocity geologic body, brought about a series of problems to ordinary processing in time domain and interpretation, for example, false image of subsalt structure and abnormal stack velocity field.

在地震勘探中，地下盐丘作为一个高速地质体会给常规时间域处理和解释带来一系列的问题，如盐下构造的假象和叠加速度场异常等。

The underground gasstorage salt cavern is to artificially dissolve the thick salt layer or salt dome to form a storage cavern for natural gas. It's a main type of gas storage sites.

盐穴地下储气库是利用地下较厚的盐层或盐丘，采用人工方式在盐层或盐丘中水溶形成洞穴储存空间来存储天然气，是储气库的主要类型之一。

The main characteristics of formation are :the salt formation is so developed that may reach about to 3000 meter thickness in Permian above main area of salt dome .

肯基亚克盐下油田的主要地质特点是：下二叠系盐层发育，在盐丘主体部位钻井，盐层厚度可达 30 0 0m ；石炭系灰岩油层孔隙压力系数高达 1。

On the basis of analyzing the forming conditions, establishing reservoir forming pattern of vertical migration-fault sealing, developing petroleum reservoir types of fault sealing and fault together with anticline, it is pointed out that the traps near the deep depression and non-piercement salt dome should be the first choice of exploration target area.

在对该区油气成藏条件分析基础上，建立了研究区盐上层系垂向运移－断层封堵型成藏模式，形成断层遮挡型及断层与背斜组合型两种油藏类型，并指出距离盐上深洼陷较近的、盐丘非刺穿构造上的圈闭是首选的勘探目标区。

The data processing result demonstrates that using the above treatment scheme can dearly image the subsalt sod salt dome flank and effectively remove the structure artifact caused by the velocity anomaly.

上述特色处理技术的应用，使得哈萨克斯坦滨里海盆地盐下及盐丘侧翼反射清楚，有效消除了由速度异常造成的构造假象。

There are massive salt dome s of great thickness,which ranges from several dozen meters to 3,700 meters,in pre-salt Carboniferous carbonate reservoirs of the Pre-Caspian Basin.

由于盐丘和围岩间存在巨大的速度差异，因此导致盐体本身和下伏地层在常规地震资料中出现反射品质降低、构造失真、畸变(如盐下石炭系目的层地震反射层在盐丘部位出现构造上拉现象)，消除盐层的影响是含盐油气盆地勘探的重要课题。

Aiming at these problems, we have designed the processing workflow to effectively suppress the surface Wave interference, regular interference, high energy interference, and other random noise interference. The treatment clue was from thick to thin. Firstly, the spectral analysis method was used to establish macroscopic velocity field. Then, the ray tomography method was used to enhance the accuracy of velocity analysis and to establish a more accurate velocity model. Finally, the finite difference pre-stack depth migration on method in -k domain was adopted to solve the imaging problem of subsalt and salt dome flank.

通过合理组织处理流程，有效压制了面波干扰、规则于扰、强能量干扰和随机噪声干扰；采用由粗到细的思路，先利用谱分析方法建立宏现速度场，再利用射线层析成像方法提高速度分析精度，建立了较为准确的速度模型；利用频率－空间域有限差分叠前深度偏移解决了盐下及盐丘侧翼的成像问题。

The big velocity difference between salt domes and surrounding rocks leads to poor reflection and distortion of salt bodies and substrata.

由于盐丘和围岩间存在巨大的速度差异，因此导致盐体本身和下伏地层在常规地震资料中出现反射品质降低、构造失真、畸变（如盐下石炭系目的层地震反射层在盐丘部位出现构造上拉现象），消除盐层的影响是含盐油气盆地勘探的重要课题。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。