Coiled-tubing logging system

Journal Article · Tue Mar 01 04:00:00 EST 1988 · SPE (Society of Petroleum Engineers) Format. Eval.; (United States)

DOI:https://doi.org/10.2118/15489-PA· OSTI ID:6983428

Howell, E P; Smith, L J; Blount, C G

Techniques have been developed to use coiled tubing containing a seven-conductor wireline to facilitate logging operations. Equipment has been designed to permit the connection of conventional logging tools to the tubing and the recording of logs. Operating techniques have been developed and applied under various wellbore conditions. The system allows traditional log measurements in a well while wellbore conditions are controlled. Advantages of the system include reduced wellbore pressure during peroration to maximize perforation performance; lubrication during pulling or pushing a logging tool through a borehole so that a more uniform velocity can be maintained with a logging sonde; continued circulation and thus borehole stability during logging; temperature reduction for improved reliability of logging sonde electronics in hot holes; and more stable positioning of perforation equipment. The ability of coiled tubing to push tools down highly deviated or horizontal wellbores makes logging or perforating feasible in these wells. Expenses can often be reduced with coiled-tubing logging because a rig is unnecessary during many operations.

• Research Organization: Arco Oil and Gas Co. (US)
• OSTI ID: 6983428
• Journal Information: SPE (Society of Petroleum Engineers) Format. Eval.; (United States), Journal Name: SPE (Society of Petroleum Engineers) Format. Eval.; (United States) Vol. 3:1; ISSN SFEVE
• 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
DESIGN
ELECTRIC COILS
ELECTRICAL EQUIPMENT
EQUIPMENT
EXPLORATION
EXPLORATORY WELLS
GEOLOGIC DEPOSITS
GEOPHYSICS
MATERIALS HANDLING
MINERAL RESOURCES
NATURAL GAS DEPOSITS
OPERATION
PERFORATION
PETROLEUM DEPOSITS
POSITIONING
PROBES
RECORDING SYSTEMS
RESOURCES
TEMPERATURE EFFECTS
TUBES
WELL LOGGING
WELL LOGGING EQUIPMENT
WELLS