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1. 发明授权

US4969130A System for monitoring the changes in fluid content of a petroleum reservoir 失效
标题翻译：用于监测石油储层流体含量变化的系统
公开(公告)号：US4969130A
公开(公告)日：1990-11-06
申请号：US414928
申请日：1989-09-29
申请人： Cameron B. Wason , Geoffrey A. King , Edward L. Shuck , E. Allen Breitenbach , Robert C. McFarlane
发明人： Cameron B. Wason , Geoffrey A. King , Edward L. Shuck , E. Allen Breitenbach , Robert C. McFarlane
IPC分类号： E21B49/00 , G01V1/42
CPC分类号： G01V1/42 , E21B49/00 , G01V2210/161
摘要： A system of monitoring the fluid contents of a petroleum reservoir, wherein a reservoir model is employed to predict the fluid flow in the reservoir, includes a check on the reservoir model by comparison of synthetic seismograms with the observed seismic data. If the synthetic output predicted by the model agrees with the observed seismic data, then it is assumed that the reservoir is being properly worked. If not then the reservoir model, in particular its reservoir description, is updated until it predicts the observed seismic response. The seismic survey may be periodically repeated during the productive life of the reservoir and the technique used to update the reservoir model so as to ensure that the revised reservoir description predicts the observed changes in the seismic data and hence reflects the current status of fluid saturations. Implementation of this invention results in more efficient reservoir management.
摘要翻译：一种监测石油储层的流体含量的系统，其中使用储层模型来预测储层中的流体流动，包括通过将合成地震图与观测的地震数据进行比较来检查储层模型。如果模型预测的合成输出与观测到的地震数据一致，则假定水库正在正常工作。如果不是，则储层模型，特别是其储层描述被更新，直到其预测观测到的地震反应。在储层的生产寿命期间可以周期性地重复地震勘测，以及用于更新储层模型的技术，以确保经修改的储层描述预测观测到的地震数据变化，从而反映当前的流体饱和状态。本发明的实施导致更有效的储层管理。

2. 发明授权

US4935903A Reinforcement of surface seismic wavefields 失效
标题翻译：表面地震波场的加固
公开(公告)号：US4935903A
公开(公告)日：1990-06-19
申请号：US398813
申请日：1989-08-25
申请人： Joe I. Sanders , Edward L. Shuck
发明人： Joe I. Sanders , Edward L. Shuck
IPC分类号： G01V1/36 , G01V1/38
CPC分类号： G01V1/3808 , G01V1/364 , G01V2210/3246
摘要： A marine seismic reflection prospecting system attenuates coherent noise through reinforcement of primary reflection data by the addition of corrected ghost reflection data. The system includes a seismic energy source, a detector, a wavefield separator, a time-shift element, and an element for generating an output signal representative of an additive linear combination of time-aligned primary and ghost signal components. The system's output is suitable for further pre-stack processing, e.g., NMO correction.

3. 发明授权

US4937793A Processing method for marine seismic surveying utilizing dual streamers 失效
标题翻译：利用双拖缆进行海洋地震勘测的处理方法
公开(公告)号：US4937793A
公开(公告)日：1990-06-26
申请号：US358887
申请日：1989-05-30
申请人： Edward L. Shuck , Joe I. Sanders , David Monk
发明人： Edward L. Shuck , Joe I. Sanders , David Monk
IPC分类号： G01V1/36 , G01V1/38
CPC分类号： G01V1/3808 , G01V1/364 , G01V2210/21
摘要： A processing method is disclosed for marine seismic surveying which utilizes two vertically spaced marine streamers each having a plurality of seismic detectors contained therein. A seismic energy source positioned at or near the surface of a body of water is utilized to generate seismic waves which propagate into earth formations below the water and reflect back up to be detected at each streamer. Seismic waves also reflect from the water/air interface back down toward the streamers and must be separated from the upgoing seismic waves to enhance the accuracy of the resultant trace. The seismic waves detected at two selected vertically displaced seismic detectors are combined to form a sum signal which is then combined with a scaled time integral of a difference signal to form a resultant signal which preserves either the upgoing or downgoing seismic waves. In a preferred embodiment of the present invention, the sum signal and the integral signal are both filtered to remove DC bias and low frequency components prior to the combination. Additionally, the time integral of the difference signal is preferably scaled by balancing the power therein with the power in the sum signal, thereby automatically adjusting for variations in detector spacing which may occur. In one embodiment of the present invention, the upgoing signal and downgoing signal are time shifted and combined to maximize the resultant signal-to-noise ratio.
摘要翻译：公开了一种用于海洋地震测量的处理方法，其利用两个垂直间隔的海上拖缆，每个海洋拖缆具有包含在其中的多个地震检测器。位于水体表面或附近的地震能量源被用于产生地震波，其传播到水下方的地层中并反射回以在每个流光船处检测。地震波也从水/空气界面反射回到拖缆，并且必须与上行地震波分离，以提高所得迹线的精度。在两个选定的垂直位移地震检测器处检测到的地震波被组合以形成和信号，然后将其与缩放的差分信号的时间积分组合，以形成保留上行或下行的地震波的合成信号。在本发明的优选实施例中，总和信号和积分信号都被滤波以去除组合之前的DC偏压和低频分量。此外，差分信号的时间积分优选地通过平衡和信号中的功率来平衡其功率，由此自动调整可能发生的检测器间隔的变化。在本发明的一个实施例中，上行信号和下行信号被时移并组合以最大化所得到的信噪比。

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