公开(公告)号：US20170315258A1

公开(公告)日：2017-11-02

申请号：US15143267

申请日：2016-04-29

Applicant: Schlumberger Technology Corporation

Inventor： Diogenes David Molina ,  Eugene Janssen ,  Krishnamurthy Ganesan ,  Nicholas Heaton ,  Vassilis Varveropoulos

IPC: G01V3/32 ,  G01R33/58 ,  G01R33/44 ,  G01N15/08

CPC classification number: G01V3/32 ,  G01N15/08 ,  G01N2015/0846 ,  G01R33/3671 ,  G01R33/448 ,  G01R33/58

Abstract: A method to calibrate a nuclear magnetic resonance tool is disclosed having steps of starting a nuclear magnetic resonance sequence from the nuclear magnetic resonance tool, disabling an active damping circuit in the nuclear magnetic resonance tool, collecting auxiliary calibration data for the nuclear magnetic resonance tool, estimating a natural Q value for the nuclear magnetic resonance tool, determining an optimal active damping setting for the tool, deploying the optimal active damping setting for the tool, collecting nuclear magnetic resonance response data generated from the nuclear magnetic resonance sequence and calibrating the nuclear magnetic resonance data.

公开(公告)号：US10185051B2

公开(公告)日：2019-01-22

申请号：US15143267

申请日：2016-04-29

Applicant: Schlumberger Technology Corporation

Inventor： Diogenes David Molina ,  Eugene Janssen ,  Krishnamurthy Ganesan ,  Nicholas Heaton ,  Vassilis Varveropoulos

IPC: G01R33/58 ,  G01V3/32 ,  G01R33/44 ,  G01N15/08

Abstract: A method to calibrate a nuclear magnetic resonance tool is disclosed having steps of starting a nuclear magnetic resonance sequence from the nuclear magnetic resonance tool, disabling an active damping circuit in the nuclear magnetic resonance tool, collecting auxiliary calibration data for the nuclear magnetic resonance tool, estimating a natural Q value for the nuclear magnetic resonance tool, determining an optimal active damping setting for the tool, deploying the optimal active damping setting for the tool, collecting nuclear magnetic resonance response data generated from the nuclear magnetic resonance sequence and calibrating the nuclear magnetic resonance data.

公开(公告)号：US10151175B2

公开(公告)日：2018-12-11

申请号：US14435757

申请日：2013-10-15

Applicant: Schlumberger Technology Corporation

Inventor： John A. Booker ,  Eugene Janssen

IPC: E21B34/14 ,  E21B34/06

Abstract: A remotely deployed untethered device for actuation of a downhole application. The device may be equipped with inductive measurement capacity for interaction with a downhole well architecture. Such capacity affords the ability to trigger an actuation remotely at a site specific location in the well without further intervention relative surface equipment.

公开(公告)号：US10316645B2

公开(公告)日：2019-06-11

申请号：US14891625

申请日：2014-05-16

Applicant: Schlumberger Technology Corporation

Inventor： Derek Ingraham ,  Eugene Janssen

IPC: E21B47/09 ,  E21B23/01 ,  E21B23/10

Abstract: A technique includes deploying an untethered object though a passageway of a tubular member; and acquiring a plurality of measurements that represent an environment of the tubular member as the object is being communicated through the passageway. The technique includes cross-correlating the plurality of measurements and using results of the cross-correlating to identify at least one feature of the tubular member.

公开(公告)号：US20150260013A1

公开(公告)日：2015-09-17

申请号：US14435757

申请日：2013-10-15

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： John A. Booker ,  Eugene Janssen

IPC: E21B34/14 ,  E21B34/06

CPC classification number: E21B34/14 ,  E21B34/066

Abstract: A remotely deployed untethered device for actuation of a downhole application. The device may be equipped with inductive measurement capacity for interaction with a downhole well architecture. Such capacity affords the ability to trigger an actuation remotely at a site specific location in the well without further intervention relative surface equipment.

Abstract translation: 用于致动井下应用的远程部署的无连接装置。 该装置可以配备感应测量能力以与井下井结构相互作用。 这样的能力提供了在井的位置特定位置处远程触发致动器的能力，而无需进一步干预相对表面设备。