Directional drilling pipelay
Patent
·
OSTI ID:5770966
A method is described for laying a pipeline beneath a seabottom subject to ice gouging, comprising: forming a borehole with drilling means; gripping the inside of the borehole with at least one tractor; applying thrust from at least one tractor to propel the drilling means forward until a deep arcuate borehole is formed beneath the seabottom sufficiently deep to avoid ice gouging and inserting a pipeline into the borehole.
- Assignee:
- Shell Oil Co., Houston, TX
- Patent Number(s):
- US 4700788
- OSTI ID:
- 5770966
- Resource Relation:
- Patent File Date: Filed date 6 May 1985
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
03 NATURAL GAS
42 ENGINEERING
DRILL PIPES
DRILLING
INSTALLATION
BOREHOLES
ICEBERGS
NATURAL GAS WELLS
OFFSHORE DRILLING
OIL WELLS
SEA BED
CAVITIES
DRILLING EQUIPMENT
EQUIPMENT
ICE
PIPES
WELLS
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing
423000 - Engineering- Marine Engineering- (1980-)
03 NATURAL GAS
42 ENGINEERING
DRILL PIPES
DRILLING
INSTALLATION
BOREHOLES
ICEBERGS
NATURAL GAS WELLS
OFFSHORE DRILLING
OIL WELLS
SEA BED
CAVITIES
DRILLING EQUIPMENT
EQUIPMENT
ICE
PIPES
WELLS
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing
423000 - Engineering- Marine Engineering- (1980-)