公开(公告)号：US20180172876A1

公开(公告)日：2018-06-21

申请号：US15383978

申请日：2016-12-19

Applicant: BAKER HUGHES INCORPORATED

Inventor： Feyzi INANC ,  Douglas PATTERSON ,  Elizaveta ONEGOVA ,  Rocco DIFOGGIO ,  Otto FANINI

IPC: G01V5/04 ,  G01V5/12

CPC classification number: G01V5/045 ,  G01V5/12 ,  G01V5/125

Abstract: Methods, systems, devices, and products for estimating at least one parameter of interest of a volume of interest of an earth formation using nuclear radiation based measurements. Logging tools include a limited aperture collimated radiation beam source, detectors, and at least one processor configured to take measurements. The source is configured to emit a beam of radiation radially from the logging tool into an elongated volume of interest outside the wellbore such that the beam penetrates a plurality of zones of the volume of interest. Each zone represents a range of radial depths corresponding to a respective infrastructure component associated with the wellbore, such as nested tubulars. Each detector has a unique angle of detection and is configured to generate measurement information in response to spatially coherent backscattered gamma rays. Each detector is associated with scattering events at one of the plurality of zones.

公开(公告)号：US20170168192A1

公开(公告)日：2017-06-15

申请号：US14968437

申请日：2015-12-14

Applicant: BAKER HUGHES INCORPORATED

Inventor： Maxim VASILYEV ,  Toyli ANNIYEV ,  Bair V. BANZAROV ,  Steven M. Bliven ,  Feyzi INANC ,  Alexandr A. VINOKUROV

IPC: G01V5/10 ,  G01T1/20

CPC classification number: G01V5/102 ,  G01T1/20 ,  G01V5/101

Abstract: Methods, systems, and devices for evaluating an earth formation intersected by a borehole. Methods may include irradiating the earth formation using a radiation source to provoke radiation from the formation responsive to the irradiation; taking a radiation measurement and thereby generating radiation measurement information by producing light scintillations from a scintillation material responsive to the absorption by the scintillation material of the radiation from the formation and substantial intrinsic radiation of the scintillation material; and estimating a parameter of interest of the earth formation using the radiation measurement information.