MY151713A - Methods and apparatus with high resolution electrode configuration for imaging in oil-based muds - Google Patents

Methods and apparatus with high resolution electrode configuration for imaging in oil-based muds

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Publication number
MY151713A
MY151713A MYPI20095447A MY151713A MY 151713 A MY151713 A MY 151713A MY PI20095447 A MYPI20095447 A MY PI20095447A MY 151713 A MY151713 A MY 151713A
Authority
MY
Malaysia
Prior art keywords
electrode
imaging
tool
oil
measurement electrode
Prior art date
Application number
Inventor
Hu Guoyu David
Smollinger Jay
Michael S Bittar
Original Assignee
Halliburton Energy Serv Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Halliburton Energy Serv Inc filed Critical Halliburton Energy Serv Inc
Priority to MYPI20095447 priority Critical patent/MY151713A/en
Publication of MY151713A publication Critical patent/MY151713A/en

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Abstract

VARIOUS DISCLOSED RESISTIVITY IMAGING TOOLS (26) AND METHODS PROVIDE A HIGH-RESOLUTION ELECTRODE CONFIGURATION FOR IMAGING IN OIL-BASED MUDS. SOME TOOL (26) EMBODIMENTS HAVE A SENSING SURFACE THAT COMPRISES: A MEASUREMENT ELECTRODE (402), A FOCUS ELECTRODE (404) SURROUNDING THE MEASUREMENT ELECTRODE (402), AND A RETURN ELECTRODE (406) SURROUNDING THE FOCUS ELECTRODE (404). THE SENSING SURFACE CAN BE PROVIDED ON AN EXTENDABLE SENSOR PAD OR ON THE WALL-CONTACTING PORTION OF A STABILIZER (302). SOME METHOD EMBODIMENTS INCLUDE MEASURING THE MEASUREMENT ELECTRODE (402) CURRENT WHILE DRIVING A VOLTAGE SIGNAL BETWEEN THE MEASUREMENT ELECTRODE (402) AND THE RETURN ELECTRODE (406). THE VOLTAGE SIGNAL MAY SIMULTANEOUSLY OR SEQUENTIALLY PROVIDE ENERGY AT DIFFERENT FREQUENCIES. THE RESISTIVITY MEASUREMENTS ARE COMBINED WITH TOOL (26) POSITION AND ORIENTATION MEASUREMENTS TO FORM A BOREHOLE (16) WALL IMAGE (902). ROBUST AND RELIABLE PERFORMANCE IS EXPECTED IN THE HOSTILE CONDITIONS OFTEN EXPERIENCED BY LOGGING WHILE DRILLING (LWD) TOOLS, COUPLED WITH THE ABILITY TO MAKE MICRO-RESISTIVITY MEASUREMENTS WITH A RESOLUTION APPROACHING THAT OF ELECTRODE-GRID TOOL DESIGNS.
MYPI20095447 2008-04-08 2008-04-08 Methods and apparatus with high resolution electrode configuration for imaging in oil-based muds MY151713A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MYPI20095447 MY151713A (en) 2008-04-08 2008-04-08 Methods and apparatus with high resolution electrode configuration for imaging in oil-based muds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MYPI20095447 MY151713A (en) 2008-04-08 2008-04-08 Methods and apparatus with high resolution electrode configuration for imaging in oil-based muds

Publications (1)

Publication Number Publication Date
MY151713A true MY151713A (en) 2014-06-30

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ID=52595758

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI20095447 MY151713A (en) 2008-04-08 2008-04-08 Methods and apparatus with high resolution electrode configuration for imaging in oil-based muds

Country Status (1)

Country Link
MY (1) MY151713A (en)

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