公开(公告)号：US20170227672A1

公开(公告)日：2017-08-10

申请号：US15519008

申请日：2015-10-19

Applicant: BAKER HUGHES INCORPORATED

Inventor： Carl EDWARDS ,  Mohamed DAOUD ,  Sebastian CSUTAK ,  Alexandr Nikolaevich VASILEVSKIY

IPC: G01V7/06

CPC classification number: G01V7/06

Abstract: A method of estimating one or both of compaction or subsidence of a subterranean formation with gravity measurements. The free air gradient at surface is measured and compared with gravity measured in a borehole that intersects the formation. At a later point in time, values for gravity are re-measured, differences between the measured values at the initial point in time, and the later point in time are estimated. The differences are used to estimate the compaction or subsidence. A gravimeter can be used for measuring gravity, markers in the formation can be used in conjunction with the gravimeter.