公开(公告)号：US20170075008A1

公开(公告)日：2017-03-16

申请号：US15309043

申请日：2015-05-06

Applicant: STATOIL PETROLEUM AS

Inventor： Harald WESTERDAHL ,  Mark THOMPSON ,  Lasse AMUNDSEN

IPC: G01V1/36 ,  G01V1/38

CPC classification number: G01V1/364 ,  G01V1/38 ,  G01V2210/1293 ,  G01V2210/1427 ,  G01V2210/324

Abstract: A method for use in surveying a subsurface region beneath a body of water by detecting S waves propagating through the subsurface region. The method comprises using a first sensor configuration to detect mixed S and P waves on or in the subsurface region, using a second sensor configuration located on or in relatively close proximity to the subsurface region to detect P waves in the water, and using the P waves detected in the water to compensate the detected mixed S and P waves, and thereby attenuate the effects of P waves in the mixed S and P waves.

Abstract translation: 通过检测通过地下区域传播的S波，用于测量水体下面的地下区域的方法。 该方法包括使用第一传感器配置来使用位于或相对靠近地下区域的第二传感器配置来检测地下区域或其中的混合S波和P波，以检测水中的P波，并且使用P 在水中检测到的波，以补偿检测到的混合S波和P波，从而衰减P波在混合S波和P波中的影响。

公开(公告)号：US20190250297A1

公开(公告)日：2019-08-15

申请号：US16393681

申请日：2019-04-24

Applicant: STATOIL PETROLEUM AS

Inventor： Harald WESTERDAHL ,  Mark THOMPSON ,  Lasse AMUNDSEN

IPC: G01V1/36 ,  G01V1/38

CPC classification number: G01V1/364 ,  G01V1/38 ,  G01V2210/1293 ,  G01V2210/1427 ,  G01V2210/324

Abstract: A method for use in surveying a subsurface region beneath a body of water by detecting compressional, P, waves propagating through the body of water includes locating one or more sensor systems in the water at or close to the subsurface region, using the or each sensor system to detect P waves in the water, and translating all or a portion of the data representing the detected P waves to a higher level above the subsurface region. In the method, the effects of S waves, propagating in the subsurface and converted at the water/subsurface interface into P waves propagating in the water or along the seabed interface, in the translated data is reduced.