公开(公告)号：US11906691B2

公开(公告)日：2024-02-20

申请号：US17050141

申请日：2019-04-22

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Paul R. Craddock ,  Laurent Mosse ,  Jeffrey R. Miles ,  Andrew E. Pomerantz

IPC: G01V5/10 ,  E21B49/00 ,  G01N21/35 ,  G01N33/24 ,  G01N21/3563

CPC classification number: G01V5/10 ,  E21B49/00 ,  G01N21/3563 ,  G01N33/241

Abstract: Embodiments of the present disclosure are directed towards a method for improving neutron interpretations in a subsurface formation. Embodiments may include estimating mineral concentrations and kerogen concentrations at one or more depths in the subsurface formation and determining kerogen properties at one or more depths in the subsurface formation. Embodiments may further include calculating mineral properties at one or more depths in the subsurface formation and calculating a neutron-based log response to a rock matrix based upon, at least in part, the kerogen properties and the mineral properties at one or more depths in the subsurface formation by subtracting.