公开(公告)号：US09772424B2

公开(公告)日：2017-09-26

申请号：US15032213

申请日：2013-12-30

申请人： Halliburton Energy Services, Inc.

发明人： Qi Cao ,  Chi Wei Lim ,  Alberto Quintero ,  William J. Schaecher

IPC分类号： G01V3/00 ,  G01V3/08 ,  G01V3/18 ,  G01V3/20 ,  G01V3/34 ,  G01V3/40

CPC分类号： G01V3/20

摘要： In one aspect, a resistivity logging tool for a fluid-producing formation if provided. The resistivity logging tool includes at least one transmitter device connected to at least one excitation electrode, multiple receiver devices respectively connected to monitoring electrodes, and a controller. The transmitter can inject an excitation current into the formation via the excitation electrode. Each receiver device can determine a respective voltage level induced by the excitation current. The controller can determine whether a voltage level measured by at least one receiver device is within a specified range. Based on the measured voltage level, the controller can select a global amplitude adjustment algorithm for modifying excitation currents or a localized amplitude adjustment algorithm for modifying one or more gains of one or more receiver devices. The controller can modify the excitation current or gains by executing the selected algorithm.

公开(公告)号：US20160274261A1

公开(公告)日：2016-09-22

申请号：US15032213

申请日：2013-12-30

申请人： HALLIBURTON ENERGY SERVICES, INC.

发明人： Qi Cao ,  Chi Wei Lim ,  Alberto Quintero ,  William J. Schaecher

IPC分类号： G01V3/20

CPC分类号： G01V3/20

摘要： In one aspect, a resistivity logging tool for a fluid-producing formation if provided. The resistivity logging tool includes at least one transmitter device connected to at least one excitation electrode, multiple receiver devices respectively connected to monitoring electrodes, and a controller. The transmitter can inject an excitation current into the formation via the excitation electrode. Each receiver device can determine a respective voltage level induced by the excitation current. The controller can determine whether a voltage level measured by at least one receiver device is within a specified range. Based on the measured voltage level, the controller can select a global amplitude adjustment algorithm for modifying excitation currents or a localized amplitude adjustment algorithm for modifying one or more gains of one or more receiver devices. The controller can modify the excitation current or gains by executing the selected algorithm.

摘要翻译： 一方面，如果提供用于流体产生层的电阻率测井工具。 电阻率测井工具包括至少一个连接到至少一个激励电极的发射器装置，分别连接到监测电极的多个接收器装置和控制器。 变送器可以通过激励电极将激励电流注入地层。 每个接收机设备可以确定由激励电流引起的相应电压电平。 控制器可以确定由至少一个接收机设备测量的电压电平是否在指定范围内。 基于测量的电压电平，控制器可以选择用于修改激励电流的全局幅度调整算法或用于修改一个或多个接收机设备的一个或多个增益的局部幅度调整算法。 控制器可以通过执行所选择的算法来修改激励电流或增益。