公开(公告)号：US20130249705A1

公开(公告)日：2013-09-26

申请号：US13426414

申请日：2012-03-21

申请人： David P. SHARP ,  John L. Maida ,  Etienne M. Samson

发明人： David P. SHARP ,  John L. Maida ,  Etienne M. Samson

IPC分类号： G01V3/00

CPC分类号： E21B47/0905 ,  E21B47/123

摘要： Disclosed are wireline tool systems including a casing collar locator tool and one or more logging tool(s). The logging tool(s) collects information regarding a formation property or a physical condition downhole, and produces a modulated magnetic field to communicate at least some of the collected information. The casing collar locator tool includes a light source and a sensor. The light source transmits light along an optical fiber in accordance with a sensor signal. The sensor produces the sensor signal in response to magnetic field changes attributable to passing collars in a casing string, and to the modulated magnetic field produced by the logging tool(s). Related telemetry methods are also described.

摘要翻译： 公开了包括套管定位器工具和一个或多个测井工具的有线工具系统。 记录工具收集关于井下的形成特性或物理条件的信息，并且产生调制磁场以传达所收集的信息中的至少一些。 套管定位器工具包括光源和传感器。 光源根据传感器信号沿着光纤传输光。 传感器响应于归因于套管柱中的通过套环的磁场变化以及由测井工具产生的调制磁场而产生传感器信号。 还描述了相关的遥测方法。