US 8,784,004 B2Granted

Subsea dispersant injection systems and methods

AssigneeBP Corporation North America Inc.

InventorsPierre Albert Beynet, Patrick Michael Cargol, Jr., Michael Duggan Drieu, Jonathan Eryl Rogers, Stanley Silva

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Abstract

A system for supplying a chemical dispersant to a subsea hydrocarbon discharge site comprises a dispersant source and a dispersant pump configured to pump dispersant from the dispersant source. In addition, the system comprises a first flow line coupled to the pump. Further, the system comprises a subsea dispersant distribution system coupled to the first flow line. Still further, the system comprises a dispersant injection device coupled to the distribution system and configured to inject dispersant from the dispersant source into a subsea hydrocarbon stream.

Claims31

Dependent claims

A system for supplying a chemical dispersant to a subsea hydrocarbon discharge site, comprising:

a dispersant source and a dispersant pump configured to pump dispersant from the dispersant source;
a first flow line coupled to the pump;
a subsea dispersant distribution system coupled to the first flow line;
a dispersant injection device coupled to the distribution system and configured to inject dispersant from the dispersant source into a subsea hydrocarbon stream;
wherein the dispersant source comprises a dispersant storage tank disposed on a surface vessel;
wherein the first flow line extends subsea from the vessel to the dispersant distribution system;
and
wherein the subsea dispersant distribution system comprises:
a subsea distribution panel hung from a lower end of the first flow line, wherein the distribution panel includes an inlet and a plurality of outlets;
a subsea manifold positioned at the sea floor, wherein the manifold includes a plurality of inlets and a plurality of outlets;
at least one flow line extending from the distribution panel to the manifold;
and
a flow line extending from the manifold to the injection device.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/455,724Filed 25 Apr 2012 · us provisional application
Priority: 28 Apr 2011
Published: US 2013/0022400 A124 Jan 2013
Granted: 22 Jul 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

E21B 43/0122
Specially adapted for obtaining from underwater installations: collecting oil or the like from a submerged leakage
C02F 2103/08
Nature of the water, waste water, sewage or sludge to be treated: seawater, e.g. for desalination
C02F 2103/10
Nature of the water, waste water, sewage or sludge to be treated: from quarries or from mining activities
C02F 2209/003
Controlling or monitoring parameters in water treatment: downstream control, i.e. outlet monitoring, e.g. to check the treating agents, such as…

Family

Application61/479,888Us provisional application · filed 28 Apr 2011
US 2013/0022400 A1Pre-grant publication · published 24 Jan 2013
US 8,784,004 B2This patent

From the US filing history. Foreign family members aren’t listed.

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