Realtime logging

Journal Article · Thu Jan 01 04:00:00 EST 1987 · Drilling-DCW; (United States)

OSTI ID:5991385

Whittaker, A; Kashuba, M J

This article reports that measurement-while-drilling (MWD) logging services have become an important new source of drilling and geological information on wildcats and some development wells. Sensors located within the bottomhole assembly, barely a few feet above the bit, make measurements on the formation, the borehole and the drill string itself. The MWD measurements are electronically processed and stored in the logging tool downhole. Simple MWD logging systems must wait until after tripping out of the hole for the MWD data to be downloaded from the logging tool to a surface computer in order for logs to be produced. This method is acceptable for some formation evaluation problems. But when well control, directional or completion decisions must be made, the benefit of MWD logging data is obtained only if the downhole measurements are available to the engineer in realtime.

• Research Organization: Exploration Logging Inc., Sacramento, CA
• OSTI ID: 5991385
• Journal Information: Drilling-DCW; (United States), Journal Name: Drilling-DCW; (United States) Vol. 48:1; ISSN DRDCD
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020200 -- Petroleum-- Reserves
Geology
& Exploration
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030200 -- Natural Gas-- Reserves
Geology
& Exploration
030300 -- Natural Gas-- Drilling
Production
& Processing
BOREHOLES
CAVITIES
COMPUTERS
DATA PROCESSING
DECISION MAKING
DOCUMENT TYPES
DRILL PIPES
DRILLING EQUIPMENT
EQUIPMENT
EXPLORATORY WELLS
MANAGEMENT
MEMORY DEVICES
MWD SYSTEMS
NATURAL GAS WELLS
OIL WELLS
PIPES
PROCESSING
REAL TIME SYSTEMS
RESERVOIR ROCK
REVIEWS
WELL LOGGING
WELLS