公开(公告)号：US20180106922A1

公开(公告)日：2018-04-19

申请号：US15567851

申请日：2016-04-20

Applicant: National Oilwell DHT, L.P.

Inventor： Gregory Edward LEUENBERGER ,  Aaron E. SCHEN ,  Jeries ABUJRIES ,  Kevin W. CLARK ,  Brandon EPPERSON ,  Robert WARNER ,  Jacob RIDDEL ,  Brian MCCARTHY ,  Alamzeb Hafeez KHAN

IPC: G01V1/52 ,  G01V1/46 ,  E21B12/02 ,  E21B47/09

CPC classification number: G01V1/52 ,  E21B12/02 ,  E21B47/09 ,  G01N27/205 ,  G01V1/46

Abstract: Some embodiments include a sensor assembly comprising a sensor to be carried by a movable component movably positionable about a tool body of a downhole tool. The sensor is to take wellsite measurements and the downhole tool is positionable in a wellbore. The sensor assembly further includes electronics positionable in the movable component. The electronics are to electrically connect to the sensor to receive the wellsite measurements from the sensor, and the wellsite measurements are usable to determine wellsite parameters.

公开(公告)号：US20180052131A1

公开(公告)日：2018-02-22

申请号：US15788889

申请日：2017-10-20

Applicant: National Oilwell DHT, L.P.

Inventor： Gregory Edward LEUENBERGER ,  Aaron E. SCHEN ,  Jeries ABUJRIES ,  Kevin W. CLARK ,  Brandon EPPERSON ,  Robert WARNER ,  Jacob RIDDEL ,  Brian MCCARTHY ,  Alamzeb Hafeez KHAN

IPC: G01N27/20

CPC classification number: G01V1/52 ,  E21B12/02 ,  E21B47/09 ,  G01N27/205 ,  G01V1/46

Abstract: A sensor assembly for a downhole tool including a tool body and a movable component movably positionable about the tool body is disclosed. The sensor assembly may include a wear sensor and/or a position sensor. The wear sensor may include a core with conductors at various depths to send a signal, whereby, upon wear of the core, a change in the signal at the depth of the wear is detectable. The position sensor may be carried by the movable component, and may be used with references comprising magnets distributed about the tool body. The position sensor includes magnets having polarity responsive to polarity of the references whereby a position of the movable component is determined. The sensor assembly may also include a chassis housing electronics coupled to the position sensor and/or the wear sensor.