Installation of subsea pipelines

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11796086
APP PUB NO 20210348698A1
SERIAL NO

17289679

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A method of installing a subsea pipeline supports at least one elongate pipe stalk at the surface of the sea at a first, relatively shallow-water location by virtue of buoyancy added to the pipe stalk. The pipe stalk is then towed at the surface to a second location that is in deeper water. There, with the pipe stalk supported between leading and trailing towing vessels, at least some of the added buoyancy is removed. This causes the pipe stalk to hang with catenary curvature beneath the surface between the vessels. The catenary-curved pipe stalk hanging between the vessels is then towed to a third location for subsea installation, which may involve upending the pipe stalk before landing a lower end portion of it on the seabed.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
SUBSEA 7 (US) LLC17220 KATY FREEWAY SUITE 100 HOUSTON TX 77094
TOTAL E&P RESEARCH & TECHNOLOGY USA LCC1201 LOUISIANA STREET SUITE 1800 HOUSTON TX 77002
SHELL INTERNATIONAL EXPLORATION AND PRODUCTION INC200 NORTH DAIRY ASHFORD ROAD HOUSTON TX 77079-1101

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Darilmaz, Ilkay Houston, US 2 0
Mateen, Khalid Katy, US 5 0
Mohan, Karthik Houston, US 3 37

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Apr 24, 2027
7.5 Year Payment $3600.00 $1800.00 $900.00 Apr 24, 2031
11.5 Year Payment $7400.00 $3700.00 $1850.00 Apr 24, 2035
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00