公开(公告)号：US20170160425A1

公开(公告)日：2017-06-08

申请号：US14960429

申请日：2015-12-06

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Jeffrey Miles ,  Mathilde Luycx

IPC: G01V5/00 ,  G01V99/00

CPC classification number: G01V5/00 ,  G01V5/104 ,  G01V99/005

Abstract: A method and system for determining at least one property of a geological formation employs at least one forward model to derive at least one synthetic detector measurement that relates to neutron-induced gamma-ray emission from geological formation. The forward model is also used to infer at least one property of the geological formation including bulk density of the geological formation.

公开(公告)号：US09568639B2

公开(公告)日：2017-02-14

申请号：US14279935

申请日：2014-05-16

Applicant: Schlumberger Technology Corporation

Inventor： James Grau ,  Jeffrey Miles

IPC: G01V5/04 ,  G01V5/12 ,  G01V13/00 ,  G01V5/10

CPC classification number: G01V5/12 ,  G01V5/101 ,  G01V13/00

Abstract: A borehole tool calibration method may include obtaining a measured energy spectrum for at least one geological constituent based upon a first borehole tool, generating a calculated energy spectrum for the at least one geological constituent for the first borehole tool, and generating a calculated energy spectrum for the at least one geological constituent for a second borehole tool different than the first borehole tool. The method may further include determining a relationship between the calculated energy spectra for the first and second borehole tools, and determining a calibration parameter for the second borehole tool based upon the measured energy spectrum and the relationship between the calculated energy spectra for the first and second borehole tools.

Abstract translation: 井眼工具校准方法可以包括基于第一钻孔工具获得至少一个地质构件的测量能谱，产生用于第一钻孔工具的至少一个地质构件的计算能谱，并产生计算的能谱 用于与第一钻孔工具不同的第二钻孔工具的至少一个地质构件。 该方法还可以包括确定所计算的第一和第二钻孔工具的能量谱之间的关系，以及基于所测量的能量谱和第一和第二钻孔工具的计算能谱之间的关系确定第二钻孔工具的校准参数 钻孔工具。