公开(公告)号：US20160178780A1

公开(公告)日：2016-06-23

申请号：US14957543

申请日：2015-12-02

Applicant: Schlumberger Technology Corporation

Inventor： Joshua W. Gibson ,  Libo Yang ,  Gary A. Hazen ,  Mark A. Fredette ,  Fernando Garcia-Osuna

IPC: G01V3/10 ,  G01R31/28

CPC classification number: G01V3/10 ,  G01R31/2822 ,  G01V3/18 ,  G01V13/00

Abstract: Systems and methods for antenna transmitter health determinations and borehole compensation for an electromagnetic measurement tools are provided. The input current to an antenna transmitter of an electromagnetic measurement tool may be measured using a current measurement circuit. An output voltage proportional to the input current may be provided and compared to a threshold to determine the health of the antenna transmitter. A replacement borehole compensation matrix for calculating a combined attenuation measurement may be selected based on an identified unhealthy antenna transmitter.

Abstract translation: 提供用于电磁测量工具的天线发射器健康测定和钻孔补偿的系统和方法。 可以使用电流测量电路测量到电磁测量工具的天线发射器的输入电流。 可以提供与输入电流成比例的输出电压，并将其与阈值进行比较，以确定天线发射器的健康状况。 可以基于所识别的不健康天线发射器来选择用于计算组合衰减测量的替换钻孔补偿矩阵。

公开(公告)号：US20170139074A1

公开(公告)日：2017-05-18

申请号：US15346242

申请日：2016-11-08

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Christian Stoller ,  Matthieu Simon ,  David Alan Rose ,  Libo Yang ,  Onur Ozen ,  Sicco Beekman

IPC: G01V5/08 ,  E21B49/00

CPC classification number: G01V5/08 ,  E21B47/1015 ,  E21B49/00 ,  G01V5/04

Abstract: The present disclosure describes a downhole tool including an electrically operated radiation generator that selectively output radiation to a surrounding environment based at least in part on supply of electrical power; and a control system that determines likelihood of exposing living beings in the surrounding environment to output radiation by determining whether one or more check conditions is met; determine that each of the one or more check conditions is met before instructing the electrically operated radiation generator to output radiation; and instruct the electrically operated radiation generator to cease output of radiation when at least one of the one or more check conditions is no longer met.