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1. 发明申请

WO2018044309A1 REAL-TIME PROCESSING AND CONTROL OF DAS VSP SURVEYS 审中-公开
标题翻译： DAS VSP调查的实时处理和控制
公开(公告)号：WO2018044309A1
公开(公告)日：2018-03-08
申请号：PCT/US2016/049793
申请日：2016-08-31
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： WILSON, Glenn, Andrew , WU, Xiang , ELLMAUTHALER, Andreas , WILLIS, Mark, Elliott
IPC分类号： E21B47/00 , G01V1/40 , G01V1/48
摘要： A system for processing DAS VSP surveys in real-time is provided. The system includes a DAS data collection system coupled to at least one optical fiber at least partially positioned within a wellbore and configured to repeatedly activate a seismic source of energy. The system further includes an information processing system connected to the DAS data collection system. A seismic dataset is received from the DAS data collection system. The seismic dataset includes a plurality of seismic data records. Two or more of the plurality of seismic data records are combined into a stack. A quality metric indicative of a desired signal-to-noise ratio or incoherence of the stack is determined for each processed seismic dataset collected from a repeated source. Instructions are sent to the DAS data collection system to stop activating the seismic source, in response to determining that the quality metric has reached a predefined threshold.
摘要翻译：
提供了一个实时处理DAS VSP调查的系统。该系统包括耦合到至少一个光纤的DAS数据收集系统，所述至少一个光纤至少部分地位于井眼内并且被配置为重复激活地震能量源。该系统还包括连接到DAS数据收集系统的信息处理系统。从DAS数据收集系统接收地震数据集。地震数据集包括多个地震数据记录。多个地震数据记录中的两个或更多个被组合成堆叠。对于从重复源收集的每个经处理的地震数据集，确定指示期望的信噪比或不一致性的质量度量。响应于确定质量度量已达到预定义的阈值，将指令发送到DAS数据收集系统以停止激活地震源。

2. 发明申请

WO2018118046A1 DOWNHOLE SENSING CABLE SYSTEM FOR IMPROVED SEISMIC ENERGY COUPLING TO THE CABLE SYSTEM 审中-公开
公开(公告)号：WO2018118046A1
公开(公告)日：2018-06-28
申请号：PCT/US2016/068052
申请日：2016-12-21
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： LEBLANC, Michel, Joseph , WILLIS, Mark, Elliott
IPC分类号： G01B11/16 , G06Q50/10 , G02B6/38 , G01D5/353
摘要： A sensing system may comprise a deployment device having an optical fiber cable with a predetermined curvature or an intrinsic curvature. The sensing system may be deployed into a location that is remote or difficult to navigate, for example, a large vessel or a borehole of a well. A deployment device may deploy the optical fiber cable and a tension control tool may maintain the deployment device along with the optical fiber cable in a straight or non-curved shape until the optical fiber cable has reached a predetermined location or position. A force may then be applied to the optical fiber cable to cause a portion of the optical fiber cable to contact an interior wall of the area or location, for example, a borehole or the deployment device. Measurements may be retrieved from the optical fiber cable, for example, measurements used in distributed acoustic sensing in vertical seismic profiling.

3. 发明申请

WO2015026594A1 GEOPHYSICAL PROSPECTING BY PROCESSING VERTICAL SEISMIC PROFILES USING DOWNWARD CONTINUATION 审中-公开
标题翻译：使用下行连续性处理垂直地震剖面的地球物理前景
公开(公告)号：WO2015026594A1
公开(公告)日：2015-02-26
申请号：PCT/US2014/050848
申请日：2014-08-13
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： WILLIS, Mark, Elliott , DU, Yue
IPC分类号： E21B47/00 , G01V1/40 , G01V1/48
CPC分类号： E21B49/00 , E21B7/00 , G01V1/42 , G01V1/50 , G01V2210/125 , G01V2210/161 , G01V2210/52 , G01V2210/53 , G01V2210/57
摘要： Geophysical prospecting may be achieved using borehole seismic data and processing velocity seismic profiles using downward continuation to simulate the seismic source being at the depth of the borehole receivers. Such methods may involve collecting seismic data for a subterranean formation with at least one borehole receiver; grouping the seismic data into a one common receiver gather corresponding to each borehole receiver; performing a downward continuation on at least one of the common receiver gathers to produce corresponding downward continued common receiver gathers; performing a normal moveout analysis on at least one of the downward continued common receiver gathers to produce corresponding semblance velocity spectra; and analyzing at least one of the semblance velocity spectra for a zone of interest in the subterranean formation.
摘要翻译：可以使用井下地震数据和处理速度地震剖面来实现地球物理勘探，使用向下延续来模拟井眼接收器深度处的地震源。这种方法可以涉及用至少一个钻孔接收器收集地下地层的地震数据; 将地震数据分组成对应于每个钻孔接收器的一个公共接收机收集器; 在至少一个公共接收器集合上执行向下延续以产生相应的向下连续的公共接收机集合; 对下行连续的公共接收机集合中的至少一个进行正常的移动分析以产生对应的相似速度谱; 以及分析地下地层中感兴趣区域的至少一个外观速度谱。

4. 发明申请

WO2020251554A1 RETRIEVABLE FIBER OPTIC VERTICAL SEISMIC PROFILING DATA ACQUISITION SYSTEM WITH INTEGRATED LOGGING TOOL FOR GEOPHONE-EQUIVALENT DEPTH ACCURACY 审中-公开
公开(公告)号：WO2020251554A1
公开(公告)日：2020-12-17
申请号：PCT/US2019/036550
申请日：2019-06-11
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： ELLMAUTHALER, Andreas , SHAW, Simon , LEBLANC, Michel, Joseph , WILLIS, Mark, Elliott , WU, Xiang
IPC分类号： G01V1/46 , G01V1/50 , G01V8/24
摘要： A wellbore system includes a logging unit having a retrievable logging cable coupled to a downhole tool within a wellbore and a depth correlation unit in the downhole tool that provides current depth data for the wellbore through the retrievable logging cable for recording of a current depth by the logging unit. The wellbore system also includes a distributed acoustic sensing unit that includes a seismic processing unit and a seismic profiling unit connected to a separate optical cable of the retrievable logging cable having distributed acoustic sensing channels, wherein an assignment of the distributed acoustic sensing channels along the separate optical cable is determined by an offset distance between the current depth of a formation reference region within the wellbore and a previous reference depth of the formation reference region within the wellbore. A distributed acoustic sensing method is also included.

5. 发明申请

WO2019027466A1 VERTICAL SEISMIC PROFILING FORMATION VELOCITY ESTIMATION 审中-公开
公开(公告)号：WO2019027466A1
公开(公告)日：2019-02-07
申请号：PCT/US2017/045364
申请日：2017-08-03
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： WILLIS, Mark, Elliott , PADHI, Amit
IPC分类号： G01V1/28
摘要： A method for processing vertical seismic profiling (VSP) data is provided. The method includes receiving VSP data in response to seismic energy applied to the formation, processing a down-going portion of the VSP data associated with a down-going wave field, outputting a first set of estimation values based on processing the down-going portion of the VSP data, the first set of estimation values estimating at least one of slowness or velocity, processing an up-going portion of the VSP data associated with an up-going wave field, outputting a second set of estimation values based on processing the up-going portion of the VSP data, the second set of estimation values estimating at least one of slowness or velocity, and determining an estimation associated with the formation based on the first and second sets of estimation values.

6. 发明申请

WO2018063156A8 ITERATIVE MIGRATION VELOCITY OPTIMIZATION FOR A VSP SURVEY USING SEMBLANCE 审中-公开
公开(公告)号：WO2018063156A8
公开(公告)日：2018-04-05
申请号：PCT/US2016/053953
申请日：2016-09-27
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： PADHI, Amit , WILLIS, Mark, Elliott
IPC分类号： E21B47/00 , G01V1/40 , G01V1/48
摘要： A method to process vertical seismic profile (VSP) data includes receiving VSP data, migrating the VSP data output using an initial velocity model to produce migrated depth values associated with the respective receivers, sorting and collecting the migrated depth values corresponding to each receiver to produce a migrated common receiver gather (CRG) associated with each receiver, stacking the migrated depth values of the CRGs corresponding to respective fixed lateral positions in an image volume to produce a common image gather (CIG) associated with each lateral position, and generating a semblance panel having the stacked depth migration values plotted as contours on a first axis for velocity ratio (vr), which is based on migration velocity and true velocity) and a second axis for true depth (Zt). The method further includes updating the initial velocity model based on a plurality of data points selected from the semblance panel to provide an updated velocity model.

7. 发明申请

WO2020081156A1 METHOD TO IMPROVE DAS CHANNEL LOCATION ACCURACY USING GLOBAL INVERSION 审中-公开
公开(公告)号：WO2020081156A1
公开(公告)日：2020-04-23
申请号：PCT/US2019/049349
申请日：2019-09-03
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： PADHI, Amit , WILLIS, Mark, Elliott , WU, Xiang , ELLMAUTHALER, Andreas
IPC分类号： G01V1/50 , E21B49/00 , G01V1/46 , G01V99/00
摘要： A method for identifying a location of a distributed acoustic system channel in a distributed acoustic system. The method may comprise generating a two or three dimensional layer model interface with an information handling system, preparing a P-wave first arrival pick time table, estimating an initial model layer properties, estimating a location of the distributed acoustic system channels, preparing an overburden file of layer properties, running an anisotropic ray tracing, defining an upper and a lower limits for model parameters, specifying parameters for the inversion, running an inversion, selecting a solution based at least in part on stored error predictions, and calculating a mean and a standard deviation of an inverted model parameter.

8. 发明申请

WO2018063156A1 ITERATIVE MIGRATION VELOCITY OPTIMIZATION FOR A VSP SURVEY USING SEMBLANCE 审中-公开
标题翻译：用SEM研究VSP测量的迭代偏移速度优化
公开(公告)号：WO2018063156A1
公开(公告)日：2018-04-05
申请号：PCT/US2016/053953
申请日：2016-09-27
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： PADHL, Amit , WILLIS, Mark, Elliott
IPC分类号： E21B47/00 , G01V1/40 , G01V1/48
CPC分类号： G01V1/42 , G01V1/303 , G01V1/40 , G01V1/48 , G01V2210/1295 , G01V2210/1429 , G01V2210/161 , G01V2210/48 , G01V2210/512 , G01V2210/52 , G01V2210/6222
摘要： A method to process vertical seismic profile (VSP) data includes receiving VSP data, migrating the VSP data output using an initial velocity model to produce migrated depth values associated with the respective receivers, sorting and collecting the migrated depth values corresponding to each receiver to produce a migrated common receiver gather (CRG) associated with each receiver, stacking the migrated depth values of the CRGs corresponding to respective fixed lateral positions in an image volume to produce a common image gather (CIG) associated with each lateral position, and generating a semblance panel having the stacked depth migration values plotted as contours on a first axis for velocity ratio (vr), which is based on migration velocity and true velocity) and a second axis for true depth (Zt). The method further includes updating the initial velocity model based on a plurality of data points selected from the semblance panel to provide an updated velocity model.
摘要翻译：处理垂直地震剖面（VSP）数据的方法包括接收VSP数据，使用初始速度模型迁移VSP数据输出以产生与各个接收器相关联的迁移的深度值，分类和收集迁移的对应于每个接收器的深度值以产生与每个接收器相关联的迁移的公共接收器集合（CRG），将与各个固定横向位置对应的CRG的迁移深度值堆叠在图像体积中以产生与以下关联的公共图像集合（CIG）每个侧向位置，并且生成具有堆积的深度偏移值作为第一轴上的轮廓的速度比（vr）（其基于偏移速度和真实速度）和第二轴的真实深度（Zt）绘制的相似面板。该方法还包括基于从相似面板中选择的多个数据点来更新初始速度模型，以提供更新的速度模型。

9. 发明申请

WO2016053582A1 TRACE DOWNSAMPLING OF DISTRIBUTED ACOUSTIC SENSOR DATA 审中-公开
标题翻译：分布式声学传感器数据跟踪
公开(公告)号：WO2016053582A1
公开(公告)日：2016-04-07
申请号：PCT/US2015/048968
申请日：2015-09-08
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： ELLMAUTHALER, Andreas , WILLIS, Mark, Elliott , LEUNG, Victor King, Hong , WU, Xiang
IPC分类号： E21B47/00 , G01V1/40 , G01V1/48
CPC分类号： G01V11/002 , E21B47/123 , G01H9/004 , G01V2210/324 , G01V2210/57
摘要： In accordance with embodiments of the present disclosure, systems and methods for downsampling DAS data in a way that enables accurate interpretation of acoustic events occurring in the data are provided. Such methods may be particularly useful when interpreting large sets of data, such as DAS VSP data collected during hydrocarbon recovery operations. The methods generally involve identifying data channels affected by noise from a DAS data set, and then interpolating from the surrounding data. This may improve the quality of the resulting downsampled data, with respect to the signal to noise ratio, compared to what would have occurred by merely decimating unwanted data channels. In addition, a priori information about channel fading, the desired downsampling rate, and the slowest expected elastic waves may be used to filter the DAS data. This may achieve a higher signal- to-noise ratio in the downsampled data.
摘要翻译：根据本公开的实施例，提供了以能够精确地解释数据中发生的声学事件的方式对DAS数据进行下采样的系统和方法。当解释大量数据（例如在烃回收操作期间收集的DAS VSP数据）时，这种方法可能是特别有用的。这些方法通常涉及识别受DAS数据集影响的噪声影响的数据通道，然后从周围的数据内插。与仅通过仅抽取不需要的数据信道所发生的情况相比，这可以提高相对于信噪比的结果下采样数据的质量。此外，可以使用关于信道衰落，期望的下采样率和最慢预期弹性波的先验信息来过滤DAS数据。这可能在下采样数据中实现更高的信噪比。

10. 发明申请

WO2016039928A1 NOISE REMOVAL FOR DISTRIBUTED ACOUSTIC SENSING DATA 审中-公开
标题翻译：用于分布式声学传感数据的噪声去除
公开(公告)号：WO2016039928A1
公开(公告)日：2016-03-17
申请号：PCT/US2015/045092
申请日：2015-08-13
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： ELLMAUTHALER, Andreas , WILLIS, Mark, Elliott , BARFOOT, David, Andrew , WALKER, Kristoffer, Thomas
IPC分类号： G01V1/40 , G01V1/46 , E21B47/00
CPC分类号： G01V1/42 , G01H9/004 , G01V1/226 , G01V2200/14 , G01V2210/161 , G01V2210/20 , G01V2210/30
摘要： An example method includes at least partially positioning within a wellbore an optical fiber of a distributed acoustic sensing (DAS) data collection system. Seismic data from the DAS data collection system may be received. The seismic data may include seismic traces associated with a plurality of depths in the wellbore. A quality factor may be determined for each seismic trace. One or more seismic traces may be removed from the seismic data based, at least in part, on the determined quality factors.
摘要翻译：示例性方法包括在井眼内至少部分地定位分布式声学感测（DAS）数据收集系统的光纤。可以接收来自DAS数据采集系统的地震数据。地震数据可以包括与井筒中的多个深度相关联的地震迹线。可以为每个地震迹线确定品质因数。至少部分地基于所确定的质量因素，可以从地震数据中去除一个或多个地震迹线。

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