Invention Grant
US08953412B2 Method and assembly for determining landing of logging tools in a wellbore
有权
用于确定测井工具在井筒中的着陆的方法和装配
- Patent Title: Method and assembly for determining landing of logging tools in a wellbore
- Patent Title (中): 用于确定测井工具在井筒中的着陆的方法和装配
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Application No.: US14119421Application Date: 2012-12-26
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Publication No.: US08953412B2Publication Date: 2015-02-10
- Inventor: Yuanhang Chen , Wei Sun , Andrew Albert Hrametz
- Applicant: Halliburton Energy Services, Inc.
- Applicant Address: US TX Houston
- Assignee: Halliburton Energy Services, Inc.
- Current Assignee: Halliburton Energy Services, Inc.
- Current Assignee Address: US TX Houston
- Agency: Fish & Richardson P.C.
- Agent Anthony Iannitelli
- International Application: PCT/US2012/071624 WO 20121226
- International Announcement: WO2014/105007 WO 20140703
- Main IPC: E21B47/16
- IPC: E21B47/16 ; E21B47/18 ; E21B47/04

Abstract:
An assembly using an onboard controller employs sensors to precisely determine the landing status of downhole logging tools. A control algorithm of the onboard controller can enable an intelligent management of the battery system and memory system of the logging tools. Sensors are used to verify landing having been reached. The sensors may include a real time clock, a pressure sensor, a temperature sensor, and a proximity/position sensor. The sensors can send measurement signals to the controller for determining if the measurement values are within an acceptable range indicating the logging tools having landed. As a correct landing has been confirmed or verified, the controller can trigger an onset for data logging (e.g., powering up the battery system and/or memory system). A method of determining landing of a logging tool in a wellbore is disclosed.
Public/Granted literature
- US20140340990A1 Method And Assembly For Determining Landing Of Logging Tools In A Wellbore Public/Granted day:2014-11-20
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