Means and method for facilitating measurements while coring

Patent · Tue Jul 22 04:00:00 EDT 1986

OSTI ID:5376789

Campbell, F L; Barnum, D C; Corea, W C

This patent describes an apparatus for monitoring detrimental conditions associated with extraction of a core from an earth formation penetrated by a well bore using a core barrel having a rotatable outer cylindrical barrel attached to and operationally rotated by, a drill string, and drilling fluid circulating within the well bore as the core is extracted, wherein rotation of a usually stationary inner core barrel coaxial of the outer core barrel during the extraction of the core and its placement thereof within the cylindrical inner barrel, is used to indicate the associated detrimental coring conditions.

• Assignee: Chevron Research Co., San Francisco, CA
• Patent Number(s): US 4601354
• OSTI ID: 5376789
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
CONTROL SYSTEMS
CORING EQUIPMENT
CYLINDERS
DRILL CORES
DRILL PIPES
DRILLING EQUIPMENT
DRILLING FLUIDS
EQUIPMENT
FLUIDS
MOTION
MWD SYSTEMS
NATURAL GAS WELLS
OIL WELLS
PIPES
ROTATION
SIGNALS
WELLS