专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2007135359A2 ELECTROMAGNETIC SURVEYING 审中-公开
标题翻译：电磁测量
公开(公告)号：WO2007135359A2
公开(公告)日：2007-11-29
申请号：PCT/GB2007/001497
申请日：2007-04-24
申请人： OHM LIMITED , MACGREGOR, Lucy , ANDREIS, David , BARKER, Neville
发明人： MACGREGOR, Lucy , ANDREIS, David , BARKER, Neville
CPC分类号： G01V3/083
摘要： A method of analysing results from a controlled source electromagnetic survey of a region of interest containing a previously identified geological structure suitable for bearing hydrocarbons is described. The method comprises providing a first survey data set obtained outside the region of interest, i.e. off-target, for a range of source-receiver orientations and offsets, and providing a second survey data set obtained inside the region of interest, i.e. on target, for a range of source-receiver offsets. The method further comprises performing a mathematical inversion of the first survey data set to provide a model of the subterranean strata outside the region of interest, and processing the second survey data set to provide a model of the subterranean strata inside the region of interest, wherein the processing of the second survey data set takes account of the results of the inversion of the first survey data set.
摘要翻译：描述了从包含先前确定的适于承载烃的地质结构的感兴趣区域的受控源电磁勘测中分析结果的方法。该方法包括：在源 - 接收器取向和偏移的范围内提供在感兴趣区域之外获得的第一勘测数据集，即偏靶，以及提供在感兴趣区域内即即目标上获得的第二勘测数据集，用于一系列源 - 接收器偏移。该方法还包括执行第一勘测数据集的数学倒置以提供感兴趣区域外的地下层的模型，以及处理第二勘测数据集以提供感兴趣区域内的地下层的模型，其中第二勘测数据集的处理考虑了第一勘测数据集的反转结果。

2. 发明申请

WO2009037419A2 ELECTROMAGNETIC SURVEYING 审中-公开
标题翻译：电磁测量
公开(公告)号：WO2009037419A2
公开(公告)日：2009-03-26
申请号：PCT/GB2008/002921
申请日：2008-08-29
申请人： OHM LIMITED , ANDREIS, David , MACGREGOR, Lucy , GOLUBEV, Nikolay
发明人： ANDREIS, David , MACGREGOR, Lucy , GOLUBEV, Nikolay
IPC分类号： G01V3/12
CPC分类号： G01V3/12 , E21B2043/0115 , G01V3/083
摘要： A method of analysing results from an electromagnetic survey of an area that is thought or known to contain a subterranean resistive or conductive body within a background strata configuration is described. The method comprises providing a set of electromagnetic field data obtained using at least one electromagnetic receiver and at least one electromagnetic source for a range of source-receiver separations, e.g. providing conventional controlled-source electromagnetic survey data. A subset of the electromagnetic field data is identified that comprises data obtained for source-receiver separations greater than a selected threshold offset. The threshold offset is chosen so that data beyond this offset are characteristic of magnetotelluric data. Thus the subset of data is then processed in accordance with a first technique to obtain information on the background strata configuration. Other electromagnetic field data obtained for source-receiver separations less than the threshold offset may then be processed in accordance with a second technique to obtain information on any subterranean resistive or conductive body within the background strata configuration.
摘要翻译：描述了一种分析来自在背景层构造中被认为或已知含有地下电阻或导电体的区域的电磁勘测的结果的方法。该方法包括提供使用至少一个电磁接收器获得的一组电磁场数据和用于一系列源 - 接收器分离的至少一个电磁源。提供常规的受控源电磁勘测数据。识别电磁场数据的子集，其包括为大于所选阈值偏移的源 - 接收器分离获得的数据。选择阈值偏移，使得超出该偏移的数据是大地电磁数据的特征。因此，根据第一技术来处理数据子集以获得关于背景层配置的信息。然后可以根据第二技术来处理获得的小于阈值偏移的源 - 接收器分离的其它电磁场数据，以获得关于背景层构造内的任何地下电阻或导电体的信息。

3. 发明申请

WO2005081016A1 ELECTROMAGNETIC SURVEYING FOR RESISTIVE OR CONDUCTIVE BODIES 审中-公开
标题翻译：用于电阻或导电体的电磁测量
公开(公告)号：WO2005081016A1
公开(公告)日：2005-09-01
申请号：PCT/GB2005/000360
申请日：2005-02-03
申请人： OHM LIMITED , MACGREGOR, Lucy, M. , ANDREIS, David , TOMPKINS, Michael
发明人： MACGREGOR, Lucy, M. , ANDREIS, David , TOMPKINS, Michael
IPC分类号： G01V3/12
CPC分类号： G01V3/12 , G01V3/083 , Y02A90/344
摘要： A method of analysing electromagnetic survey data from an area of seafloor (6) that is thought or known to contain a conductive or resistive body, such as a subterranean hydrocarbon reservoir (12), is described. The method includes providing electric field data and magnetic field data, for example magnetic flux density, obtained by at least one receiver (25) from a horizontal electric dipole (HED) transmitter (22) and determining a vertical gradient in the electric field data. The vertical gradient in the electric field data and the magnetic field data are then combined to generate combined response data. The combined response data is compared with background data specific to the area being surveyed to obtain difference data sensitive to the presence of a subterranean hydrocarbon reservoir. Because the combined response data are relatively insensitive to the transverse electric (TE) mode component of the transmitted signal, the method allows hydrocarbon reservoirs to be detected in shallow water where the TE mode component interacting with the air would otherwise dominate. Furthermore, because there is no mixing between the TE and transverse magnetic (TM) modes in the combined response data, data from all possible transmitter and receiver orientations may be used. The background data may be provided by magneto-telluric surveying, controlled source electromagnetic surveying or from direct geophysical measurement.
摘要翻译：描述了从被认为或已知含有导电或电阻体（例如地下油气藏（12））的海底区域（6）分析电磁勘测数据的方法。该方法包括从水平电偶极子（HED）发射器（22）提供由至少一个接收器（25）获得的电场数据和磁场数据，例如磁通密度，并确定电场数据中的垂直梯度。然后组合电场数据和磁场数据中的垂直梯度以产生组合响应数据。将组合的响应数据与被调查区域特定的背景数据进行比较，以获得对地下油气藏的存在敏感的差异数据。由于组合的响应数据对于传输信号的横向电（TE）模式分量相对不敏感，所以该方法允许在浅水中检测碳氢化合物储层，其中TE模式分量与空气相互作用将主导。此外，由于在组合的响应数据中TE和横向磁（TM）模式之间没有混合，所以可以使用来自所有可能的发射器和接收器取向的数据。背景数据可以通过磁碲测量，受控源电磁测量或直接地球物理测量来提供。

4. 发明申请

WO2006090105A1 ELECTROMAGNETIC SURVEYING FOR RESISTIVE OR CONDUCTIVE BODIES 审中-公开
标题翻译：用于电阻或导电体的电磁测量
公开(公告)号：WO2006090105A1
公开(公告)日：2006-08-31
申请号：PCT/GB2006/000369
申请日：2006-02-03
申请人： OHM LIMITED , ANDREIS, David
发明人： ANDREIS, David
IPC分类号： G01V3/12
CPC分类号： G01V3/12 , G01V3/083 , Y02A90/344
摘要： A method of analysing electromagnetic survey data from an area of seafloor (6) that is thought or known to contain a resistive or conductive body, for example a subterranean hydrocarbon reservoir (12), is described. The method includes providing horizontal electromagnetic field data obtained by at least one receiver (125) from at least one horizontal electric dipole transmitter (22). Horizontal gradients in the electromagnetic field data are determined for a first component of the electromagnetic field data along a first direction and for a second component of the electromagnetic field data along a second direction. The first and second components can be the electric field along the first and second directions, or the magnetic field perpendicular to the first direction and second directions. The gradients are then combined to provide combined response data. Because the combined response data are relatively insensitive to the transverse electric (TE) mode component of the transmitted signal, the method allows hydrocarbon reservoirs to be detected in shallow water where the TE mode component interacting with the air would otherwise dominate.
摘要翻译：描述了一种从被认为或已知含有电阻或导电体（例如地下油气藏（12））的海底区域（6）分析电磁勘测数据的方法。该方法包括提供由至少一个水平电偶极子发射器（22）至少一个接收器（125）获得的水平电磁场数据。沿着第一方向为电磁场数据的第一分量和沿着第二方向的电磁场数据的第二分量确定电磁场数据中的水平梯度。第一和第二组分可以是沿着第一和第二方向的电场或垂直于第一方向和第二方向的磁场。然后将梯度组合以提供组合的响应数据。由于组合的响应数据对于传输信号的横向电（TE）模式分量相对不敏感，所以该方法允许在浅水中检测碳氢化合物储层，其中TE模式分量与空气相互作用将主导。

5. 发明公开

EP2021834A2 ELECTROMAGNETIC SURVEYING 审中-公开
标题翻译： ELEKTROMAGNETISCHE VERMESSUNGEN
公开(公告)号：EP2021834A2
公开(公告)日：2009-02-11
申请号：EP07732536.3
申请日：2007-04-24
申请人： OHM Limited
发明人： MACGREGOR, Lucy , ANDREIS, David , BARKER, Neville
IPC分类号： G01V3/12
CPC分类号： G01V3/083
摘要： A method of analysing results from a controlled source electromagnetic survey of a region of interest containing a previously identified geological structure suitable for bearing hydrocarbons is described. The method comprises providing a first survey data set obtained outside the region of interest, i.e. off-target, for a range of source-receiver orientations and offsets, and providing a second survey data set obtained inside the region of interest, i.e. on target, for a range of source-receiver offsets. The method further comprises performing a mathematical inversion of the first survey data set to provide a model of the subterranean strata outside the region of interest, and processing the second survey data set to provide a model of the subterranean strata inside the region of interest, wherein the processing of the second survey data set takes account of the results of the inversion of the first survey data set.
摘要翻译：描述了一种分析来自感兴趣区域的受控源电磁勘测的结果的方法，其包含先前确定的适于承载烃的地质结构。该方法包括提供在感兴趣区域之外获得的第一勘测数据集，所述第一勘测数据集在源 - 接收者取向和偏移的范围内，即在目标区域内获得的第二勘测数据集，用于一系列源 - 接收器偏移。该方法还包括执行第一勘测数据集的数学倒置以提供感兴趣区域外的地层的模型，以及处理第二勘测数据集以提供感兴趣区域内的地下层的模型，其中第二勘测数据集的处理考虑了第一勘测数据集的反转结果。

6. 发明公开

EP1714169A1 ELECTROMAGNETIC SURVEYING FOR RESISTIVE OR CONDUCTIVE BODIES 审中-公开
标题翻译：电磁测量用于恶劣或进行BODY
公开(公告)号：EP1714169A1
公开(公告)日：2006-10-25
申请号：EP05702100.8
申请日：2005-02-03
申请人： OHM Limited
发明人： MACGREGOR, Lucy, M. , ANDREIS, David , TOMPKINS, Michael
IPC分类号： G01V3/12
CPC分类号： G01V3/12 , G01V3/083 , Y02A90/344
摘要： A method of analyzing electromagnetic survey data from an area of seafloor (6) that is thought or known to contain a conductive or resistive body, such as a subterranean hydrocarbon reservoir (12), is described. The method includes providing electric field data and magnetic field data, for example magnetic flux density, obtained by at least one receiver (25) from a horizontal electric dipole (HED) transmitter (22) and determining a vertical gradient in the electric field data. The vertical gradient in the electric field data and the magnetic field data are then combined to generate combined response data. The combined response data is compared with background data specific to the area being surveyed to obtain difference data sensitive to the presence of a subterranean hydrocarbon reservoir. Because the combined response data are relatively insensitive to the transverse electric (TE) mode component of the transmitted signal, the method allows hydrocarbon reservoirs to be detected in shallow water where the TE mode component interacting with the air would otherwise dominate. Furthermore, because there is no mixing between the TE and transverse magnetic (TM) modes in the combined response data, data from all possible transmitter and receiver orientations may be used. The background data may be provided by magneto-telluric surveying, controlled source electromagnetic surveying or from direct geophysical measurement.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式