Title:
METHOD FOR RUNNING TUBULARS IN WELLBORES
Document Type and Number:
WIPO Patent Application WO2006101606
Kind Code:
B1
Abstract:
Methods for installing tubulars (for example, conduits, casing or liners) into a highly deviated wellbore are disclosed. In a first embodiment, the method comprises a) drilling the well to the planned total depth of the interval, b) placing a first fluid into the wellbore below a prescribed measured depth in the high-angle portion of the wellbore, said first fluid having a density that causes the portion of the tubular that extends into the first fluid to become substantially neutrally buoyant, c) placing a second fluid into the wellbore above the prescribed measured depth, said second fluid having a density less than said first fluid, d) plugging the distal portion of the tubular with a lower plug (or check valve) and an upper plug, e) as the tubular is run into the wellbore, placing a lightweight fluid into the plugged section of tubular and a heavy fluid above the plugged section of tubular, and f) running the tubular into the wellbore to the planned total depth.
Inventors:
KELLER STUART R (US)
MONTGOMERY JOHN K (US)
SPIECKER PAUL M (US)
DALE BRUCE A (US)
MONTGOMERY JOHN K (US)
SPIECKER PAUL M (US)
DALE BRUCE A (US)
Application Number:
PCT/US2006/003887
Publication Date:
March 08, 2007
Filing Date:
February 03, 2006
Export Citation:
Assignee:
EXXONMOBIL UPSTREAM RES CO (US)
KELLER STUART R (US)
MONTGOMERY JOHN K (US)
SPIECKER PAUL M (US)
DALE BRUCE A (US)
KELLER STUART R (US)
MONTGOMERY JOHN K (US)
SPIECKER PAUL M (US)
DALE BRUCE A (US)
International Classes:
E21B7/04
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