Apparatus including an equipotential housing and plurality of focused current electrodes for electrically logging a well formation at more than one lateral distance from a borehole

Patent · Tue Apr 21 04:00:00 EDT 1987

OSTI ID:6568321

Womack, T D

A well logging apparatus is described for obtaining information for measuring electrical properties of a formation intersected by a well bore, comprising: cable means for moving a housing through the well bore; an elongated housing having a continuous substantially equal potential along its length, the housing including: a first electrically conductive cylindrical member having a first threaded end portion; a first electrically conductive hub member having a second threaded end portion connected to the first threaded end portion. A second electrically conductive cylindrical member having a fourth threaded end portion connected to the third threaded end portion. A second electrically conductive hub member having a sixth threaded end portion connected to the fifth threaded end portion. A third electrically conductive cylindrical member having an eighth threaded end portion adapted to be connected to the seventh threaded end portion.

• Assignee: Halliburton Company, Duncan, OK
• Patent Number(s): US 4659993
• OSTI ID: 6568321
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
03 NATURAL GAS
030200 -- Natural Gas-- Reserves
Geology
& Exploration
BOREHOLES
CABLES
CAVITIES
CONDUCTOR DEVICES
CYLINDERS
DISTANCE
ELECTRIC CABLES
ELECTRIC CONDUCTIVITY
ELECTRIC LOGGING
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
ELECTRODES
EQUIPMENT
GEOLOGIC DEPOSITS
JOINTS
MINERAL RESOURCES
NATURAL GAS DEPOSITS
PETROLEUM DEPOSITS
PHYSICAL PROPERTIES
RESISTIVITY LOGGING
RESOURCES
THREADED JOINTS
WELL LOGGING
WELL LOGGING EQUIPMENT