Invention Grant
- Patent Title: Method and apparatus for precise positioning of a borehole measurement instrument
- Patent Title (中): 钻孔测量仪的精确定位方法和装置
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Application No.: US12698667Application Date: 2010-02-02
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Publication No.: US09002648B2Publication Date: 2015-04-07
- Inventor: Harold G. Pfutzner
- Applicant: Harold G. Pfutzner
- Applicant Address: US TX Sugar Land
- Assignee: Schlumberger Technology Corporation
- Current Assignee: Schlumberger Technology Corporation
- Current Assignee Address: US TX Sugar Land
- Agent Cathy Hewitt
- Main IPC: G01V1/40
- IPC: G01V1/40 ; G01V7/06 ; G01V1/24 ; G01V1/16 ; E21B47/09 ; E21B23/00

Abstract:
A system and method for use in a downhole tool having distance measurement, feature detection, and primary measurement devices positioned therein are provided. In one example, the method includes recording a first plurality of features and corresponding positions in a first log using the feature detection device and the distance measurement device, respectively. A first feature of the first plurality of features is selected and the position corresponding to the first feature is identified. The feature detection device is aligned relative to the first feature based on the identified position. A first primary measurement is taken using the primary measurement device while the feature detection device is aligned relative to the first feature. The steps of recording, selecting, moving, and taking are repeated to obtain a second primary measurement while the feature detection device is aligned relative to a second feature of a second plurality of features.
Public/Granted literature
- US20110185806A1 METHOD AND APPARATUS FOR PRECISE POSITIONING OF A BOREHOLE MEASUREMENT INSTRUMENT Public/Granted day:2011-08-04
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