公开(公告)号：US11927711B2

公开(公告)日：2024-03-12

申请号：US17601990

申请日：2019-05-21

申请人： HALLIBURTON ENERGY SERVICES, INC.

发明人： Ruijia Wang ,  Baichun Sun

IPC分类号： G01V1/50 ,  E21B49/00 ,  G01V1/46 ,  G01V1/52

CPC分类号： G01V1/50 ,  E21B49/00 ,  G01V1/46 ,  G01V1/52 ,  E21B2200/20 ,  G01V2210/1299 ,  G01V2210/1429 ,  G01V2210/324 ,  G01V2210/47 ,  G01V2210/614 ,  G01V2210/6222 ,  G01V2210/66

摘要： Apparatus, methods, and systems for determining body wave slowness values for a target formation zone. A method includes selecting a target axial resolution based on the size of a receiver array, obtaining a plurality of waveform data sets corresponding to a target formation zone and each acquired at a different shot position, reconstructing the plurality of waveform data sets to generate a plurality of subarray data sets corresponding to the target formation zone, determining a slowness value for each subarray data set and determining a slowness versus offset value for each subarray data set. The method may also include generating a borehole model having at least one alteration formation zone and a virgin formation zone and generating a slowness versus offset model based at least in part on the borehole model. The method may also include determining a radial depth of the alteration formation zone.

公开(公告)号：US20190025451A1

公开(公告)日：2019-01-24

申请号：US16068967

申请日：2017-03-28

申请人： HALLIBURTON ENERGY SERVICES, INC.

发明人： Ruijia WANG ,  Chung CHANG ,  John Philip GRANVILLE ,  Gary Wayne KAINER

IPC分类号： G01V1/50

CPC分类号： G01V1/50 ,  G01V1/44 ,  G01V1/48 ,  G01V2200/14 ,  G01V2210/47 ,  G01V2210/6224 ,  G01V2210/74

摘要： Techniques for estimating and visually presenting formation slowness are disclosed herein. The techniques include receiving acoustic signal responses from adjacent formations at a plurality of depths in a borehole environment, mapping a distribution of the acoustic signal responses at each depth according to slowness and a frequency values, determining at least one confidence interval to define a coherence threshold for the distribution of the acoustic signal responses at each depth, generating a variable density log for each depth based on the distribution of acoustic signals responses that satisfy the confidence interval for one or more frequency ranges, determining a formation slowness value for each depth based on the variable density log for the each depth, and presenting a semblance map that includes a slowness axis, a depth axis, the formation slowness value for each depth, and at least a portion of the distribution of acoustic signal responses at each depth.

公开(公告)号：US20180267189A1

公开(公告)日：2018-09-20

申请号：US15542718

申请日：2015-12-18

申请人： CGG SERVICES SA

发明人： Ross HAACKE ,  Robert ZIETAL

IPC分类号： G01V1/36 ,  G01V1/38

CPC分类号： G01V1/362 ,  G01V1/38 ,  G01V2210/47 ,  G01V2210/532 ,  G01V2210/58

摘要： Effects of time variability of water velocities in seismic surveys are addressed. Traveltime discontinuities in the input seismic data which are associated with the time-variable water velocities are determined. The input seismic data is transformed from a data space that contains the traveltime discontinuities into a model space which does not contain the traveltime discontinuities. Then the transformed seismic data is reverse transformed from the model space back into the data space.

公开(公告)号：US20170329031A1

公开(公告)日：2017-11-16

申请号：US15533962

申请日：2015-08-28

申请人： HALLIBURTON ENERGY SERVICES, INC.

发明人： Mark Vincent Collins

IPC分类号： G01V1/50 ,  E21B49/00 ,  E21B47/18

CPC分类号： G01V1/50 ,  E21B47/101 ,  E21B47/18 ,  E21B49/00 ,  G01V1/284 ,  G01V1/306 ,  G01V1/34 ,  G01V2210/47 ,  G01V2210/626 ,  G01V2210/74

摘要： An acoustic logging method includes obtaining first horizontal transverse isotropy (“HTI”) angles resulting from a time domain HTI algorithm. The method further includes obtaining one or more second HTI angles resulting from a frequency domain HTI algorithm. The method further includes generating a first HTI anisotropy log including a relative angle log based on the first and second HTI angles. The method further includes generating a first color map of the first HTI anisotropy log and displaying the first color map.

公开(公告)号：US20150198729A1

公开(公告)日：2015-07-16

申请号：US14593297

申请日：2015-01-09

申请人： CGG SERVICES SA

发明人： Ping WANG ,  Kawin NIMSAILA

IPC分类号： G01V1/32

CPC分类号： G01V1/325 ,  G01V1/38 ,  G01V2210/46 ,  G01V2210/47 ,  G01V2210/74

摘要： Presented are methods and systems for regularizing seismic data. The method includes receiving the seismic data, transforming the seismic data into the tau-p domain and regularizing the seismic data to desired positions in the tau-p domain using at least one low rank sparse inversion.

摘要翻译： 提出了用于规范地震数据的方法和系统。 该方法包括接收地震数据，将地震数据变换成τ-p域，并使用至少一个低秩稀疏反演将地震数据规范化为τ-p域中的期望位置。

公开(公告)号：US20140043936A1

公开(公告)日：2014-02-13

申请号：US13927566

申请日：2013-06-26

申请人： CGG SERVICES SA

发明人： Gordon POOLE

IPC分类号： G01V1/38

CPC分类号： G01V1/38 ,  G01V1/36 ,  G01V1/3861 ,  G01V2210/24 ,  G01V2210/46 ,  G01V2210/47 ,  G01V2210/55 ,  G01V2210/56

摘要： Computing device, computer instructions and method for directional designature of seismic data d with a given source directivity. The method includes obtaining directional operators r; calculating a model u with a modified source directivity based on (1) seismic data d, and (2) an operator that is a combination of the directional operators r and a reverse transform operator L; using the model u to obtain seismic data dfree with modified source directivity; and generating a final image of the subsurface using seismic data dfree.

摘要翻译： 具有给定源方向性的地震数据定向设计的计算设备，计算机指令和方法。 该方法包括获得定向算子r; 基于（1）地震数据d计算具有修改的源方向性的模型u，以及（2）作为方向运算符r和反向变换算子L的组合的运算符; 使用模型u获得具有修改的源方向性的地震数据; 并使用地震数据dfree生成地下的最终图像。

公开(公告)号：US08625390B2

公开(公告)日：2014-01-07

申请号：US12858626

申请日：2010-08-18

申请人： Tsili Wang ,  Paul Boonen

发明人： Tsili Wang ,  Paul Boonen

IPC分类号： G01V1/40

CPC分类号： G01V1/46 ,  G01V2210/47

摘要： A method for making acoustic logging measurements includes grouping received acoustic waveforms into one of a plurality of groups, each group being representative of a measured borehole condition (e.g., a range of measured standoff values and/or a range of measured azimuth angles). The waveforms stored in at least one of the groups are stacked so as to obtain an averaged waveform. The averaged waveform may be further processed, for example, via a semblance algorithm to obtain at least one acoustic wave slowness.

摘要翻译： 用于进行声学测井测量的方法包括将接收到的声波形分组成多个组中的一个组，每组代表测量的井眼状况（例如，测量的间隔值的范围和/或测量的方位角的范围）。 存储在至少一个组中的波形被堆叠以获得平均波形。 可以例如经由相似算法进一步处理平均波形以获得至少一个声波慢度。

公开(公告)号：US4628492A

公开(公告)日：1986-12-09

申请号：US569820

申请日：1984-01-11

申请人： Randy A. Winney

发明人： Randy A. Winney

IPC分类号： G01V1/32 ,  G01V1/36

CPC分类号： G01V1/32 ,  G01V1/362 ,  G01V2210/47

摘要： A method for avoiding aliasing in .tau.-p transformation or "slant stacking" of seismic data is disclosed which features identification of frequency components of the data likely to be aliased during correlative summation steps and removal thereof from the data prior to summing.

摘要翻译： 公开了一种用于避免地震数据的τ-p变换或“倾斜层叠”中的混叠的方法，其特征在于在相关求和步骤期间可能被鉴别的数据的频率分量的识别，并且在求和之前将其从数据中移除。

公开(公告)号：US20240288599A1

公开(公告)日：2024-08-29

申请号：US18174494

申请日：2023-02-24

申请人： SAUDI ARABIAN OIL COMPANY

发明人： Taqi Yousuf Alyousuf ,  Daniele Colombo

IPC分类号： G01V1/28 ,  G01V1/50 ,  G01V11/00

CPC分类号： G01V1/282 ,  G01V1/50 ,  G01V11/002 ,  G01V2210/47 ,  G01V2210/6163 ,  G01V2210/6165 ,  G01V2210/6169 ,  G01V2210/6222 ,  G01V2210/665

摘要： A method may include obtaining seismic data for a geological region of interest. The method may further include obtaining geophysical data for the geological region of interest. The method may further includes determining various pressure wavefields using a slowness model and a reflectivity model. The method may further include determining various slowness gradients for the slowness model based on the geophysical data, the pressure wavefields, the seismic data, and a geophysical constraint. The geophysical constraint may correspond to an objective function that determines a misfit between the geophysical data and the slowness model. The method may further includes updating the slowness model using the slowness gradients to produce an updated slowness model. The method may further include generating, based on the updated slowness model and the reflectivity model, a subsurface image of the geological region of interest.

公开(公告)号：US20180045845A1

公开(公告)日：2018-02-15

申请号：US15672414

申请日：2017-08-09

申请人： Schlumberger Technology Corporation

发明人： Alain Dumont ,  Ayaka Abe

IPC分类号： G01V1/50 ,  G01V1/46

CPC分类号： G01V1/50 ,  G01V1/46 ,  G01V1/48 ,  G01V2210/3246 ,  G01V2210/44 ,  G01V2210/47

摘要： A method for processing sonic data acquired with a downhole sonic tool is provided. The method comprises detecting coherent noise based on a plurality of waveforms obtained from one or more receivers issued by one or more transmitters. The plurality of waveforms correspond to propagating acoustic waves in a formation. In addition, the method comprises building a slowness filter for removing the coherent noise, and applying the slowness filter to the plurality of waveforms.