| 1. | A seismic trace calculated from well-log data is called a synthetic seismogram .
由测井资料计算出来的地震记录道称为合成地震记录。 |
| 2. | The principal deficit in making synthetic seismograms is that the input data commonly are incomplete .
制作合成地震记录主要的不足之处是输入资料不全。 |
| 3. | 2 . the idea and method to velocity - zeroize artifical accelerations is put forward
2 、提出了对人工合成地震动进行速度归零化的观点和方法。 |
| 4. | In this study , a composite source model has been used to calculate the realistic strong ground motions in beijing area , caused by 1679 ms8 . 0 earthquake in sanhe - pinggu
摘要利用复合震源模型和人工合成地震图的算法，以1679年三河平谷m (下标s ) 8 . 0地震为例，计算了北京地区的宽频带强地面运动。 |
| 5. | In order to calculate synthetic seismograms in a layered half - space with the sources and the receivers at close or same depths , an efficient numerical integration method - the peak - trough averaging method ( ptam ) is proposed , based on the repeated averaging method
摘要为了计算在震源和接收点深度相同或相近情况下分层半空间介质中的合成地震图，在重复平均法的基础上加以改进，提出一种有效的数值积分方法峰谷平均法。 |
| 6. | In the area of interpretation , it is important to fully understand the characters of kinematics and dynamics for various wavefields for cross - well seismic data and to perform fine resolution calibration on cross - well seismic sections as well as complete synthetic logs in depth domain . then , we have defined the geological meanings to each reflection sets and a preliminary interpretation method has been set up
在资料解释方面，充分认识井间地震各种波场的运动学和动力学特征，对井间地震剖面的分辨率进行了精细的标定，完成了深度域的合成地震记录，对各个波组特征的物理意义赋予一定的地质意义，初步形成了一套井间地震解释方法。 |
| 7. | Thus many data of deflecting wells can be used for seismic inversion and the problem of multiple solutions can be solved to some degree . this technology comes up to advanced domestic standards . because the water base used to make up drilling mud comes from seawater , researches are made into the effects on resistivity of saltwater mud invasion and the values - selecting methods in reserves calculation are broken through , which continues to use terrestrial oilfields " parameters
针对胜利海上埋岛油田丛式开发井组5 / 6井为斜井这种实际情况，对斜井声波测井资料进行了环境校正，经过反复的攻关研究，通过合成地震记录求准速度，实现了斜井资料的地震标定，解决了建立初始波阻抗模型的技术难题，使大量的斜井资料参与反演工作，减少了地质模型的多解性，提高了储层预测的精度，该项技术达到了国内领先水平。 |
| 8. | The precious method to simulate earthquake accelerations is not perfect because the points on the interface still move according to the simulated acceleration when the points " motion ends , which is obviously a paradox . if the points " velocity is not zeroized , soil ' s damage value based on shear stress ' s peaks or extrema is overestimated in multi - point input analysis . the new method ' s rationality is analyzed
以往人工合成的地震波在地震结束时即地震加速度恒为零时速度不为零，这与合成地震动是“模拟输入点从静止到运动再到静止的运动过程”这一要求不一致，同时导致时域内多点输入分析时差动力过大以至算出的损伤值过大，于是本文提出了简易的地震动速度归零化方法并分析了其合理性。 |
| 9. | Because the synthetic seismic record and the seismic record data got in the surface are not well matching caused by the dispersion of seismic wave , frequent correction between them must be done before use . under control of well logging data , there are two important methods to get wave impedance from seismic data inversion : wave impedance inversion method based on convolution model and wave impedance inversion method based on wave equation . using seismic data attributes can predict the information of logs
测井资料和地震资料是地震勘探中两种最重要的资料，由于地震波的频散，使合成地震记录与地面地震记录不能完全匹配，因此使用之前必须对二者进行频率校正地震资料在测井资料约束下可以进行反演，以求取地下波阻抗，主要有两种方法：基于褶积模型的波阻抗反演方法和基于波动方程的波阻抗反演方法可以用多属性变换由地震资料预测测井信息。 |
| 10. | In order to calibrate properly the thin reservoir of hd4 oilfield with acoustic velocity , based on the theory of well - to - seismic calibration , the influence of the dominant frequency , kind and phase of the wavelet , and acoustic velocity on the synthetic traces was analyzed , moreover , the differences between interval velocity from stacking velocity and acoustic velocity were discussed
为了利用声波速度对薄储层进行有效的井震标定，从井震标定的原理出发，以哈得四油田的井震标定为例，分析了标定过程中子波的主频、类型和相位及声波速度对合成地震道的影响，同时分析了声波速度与叠加速度转换的层速度之间的差别。 |
