Controlling coning by sensing a formation fluid interface

• Main Authors: MATHEW G SCHMIDT, RICKY L WORKMAN, PETER S ARONSTAM
• Format: Patent
• Language: English
• Published: 25.04.2001
• Edition: 7
• Subjects: DETECTING MASSES OR OBJECTS; EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; MEASURING; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; PHYSICS; TESTING

A method of detecting a fluid interface (20) in a formation involves drilling a number of micro-boreholes (14, 15) away from the main production borehole (10) close to the zone containing the interface (20). Detectors (17a, 17b) are permanently implanted in the miro-boreholes (14, 15). By using tran...