Patent application number | Description | Published |
20120125623 | COLLECTOR FOR CAPTURING FLOW DISCHARGED FROM A SUBSEA BLOWOUT - A collector for capturing flow discharged from a subsea blowout includes a tubular housing having a containment chamber; a seal connected to the housing; a tubular chimney connected to the housing, having a portion of a subsea connector, and having a diameter less than a diameter of the containment chamber; and a head connected to the housing and the chimney. | 05-24-2012 |
20120201604 | SUBSEA INJECTION OF OIL DISPERSANT - In one embodiment, dispersants are injected directly into a plume of oil in a subsea environment. The dispersant is supplied from a vessel, through a tubular string and flows through a routing manifold into a flexible hose. The hose then transports the dispersant to a distribution manifold, which is disposed on the sea floor, and permits injection of dispersants at multiple locations at the same time around the leaking oil. Injection of dispersants from the distribution manifold may be through injection wands, or the dispersant may be transferred to a containment or collection device located above the plume of oil, wherein nozzles are disposed around the circumference of such containment or collection device. If the dispersants are injected into the leaking oil through injection wands, such wands may be held and/or manipulated by an ROV. | 08-09-2012 |
20120273216 | METHODS OF ESTABLISHING AND/OR MAINTAINING FLOW OF HYDROCARBONS DURING SUBSEA OPERATIONS - Methods are disclosed of establishing and maintaining flow of hydrocarbon-bearing fluid from a subsea source while controlling or limiting hydrocarbon gas hydrate formation in a riser and a collection tool fluidly connected to a distal end of the riser during subsea positioning of the riser and tool. Riser sections are connected at or near the sea surface, and a collection tool may be connected to the distal end of the riser at the surface or picked up subsea by the riser. The riser and tool are deployed subsea near a subsea source of hydrocarbons. A low-density fluid is forced down the riser and tool, and then the riser and tool are positioned to collect hydrocarbons from the subsea source of hydrocarbons. Flow of a low-density fluid is gradually reduced to initiate flow of hydrocarbons up the tool and riser. | 11-01-2012 |
20120318516 | SUBSEA CONNECTOR WITH A LATCHING ASSEMBLY - A subsea connection device for connecting to an existing subsea joint comprises a body having a central axis, a first end, a second end opposite the first end, and a throughbore extending axially from the first end to the second end. The first end comprises a connector configured to couple the body to a capping stack. In addition, the device comprises a seal element mounted in the throughbore at the second end of the body. Further, the device comprises a latching assembly disposed about the second end of the body. The latching assembly includes a base coupled to the body and a plurality of circumferentially spaced latching members pivotally coupled to the base. | 12-20-2012 |
20120325489 | APPARATUS AND METHODS FOR USE IN ESTABLISHING AND/OR MAINTAINING CONTROLLED FLOW OF HYDROCARBONS DURING SUBSEA OPERATIONS - Apparatus includes a seal head having first and second ends and a sidewall having an internal diameter. The first end of the seal head is open to the environment, and the second end is closed to the environment by an end cap. The seal head includes an aperture configured to accommodate a subsea source. A tubular seal head extension is fluidly connected to the seal head end cap. The seal head extension has an external diameter, an external surface, and a length. A movable element having first and second ends and a sidewall structure having an internal diameter sufficiently larger than the external diameter of the extension forms an annulus between the movable element and the extension. The movable element first end opens to the environment, while its second end is closed by an end cap defining an exit fluidly connectable to a subsea collection system. | 12-27-2012 |
20130022400 | SUBSEA DISPERSANT INJECTION SYSTEMS AND METHODS - 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. | 01-24-2013 |
20130161022 | SYSTEMS AND METHODS FOR MECHANICAL HYDROCARBON DISPERSION - System and method provide a rapid mobilization and deployment technique for effectively mechanically dispersing marine oil spills that either eliminates or reduces the use of chemical dispersants. The disclosed systems and methods work by mechanically generating finely dispersed oil and gas droplets which may improve the dispersion of the hydrocarbons into the water column which can increase the rate of natural degradation of hydrocarbons in the water column. | 06-27-2013 |
20130284446 | SUBSEA TELESCOPING AND ROTATABLE SUB - A subsea telescoping and rotatable connector or sub is coupled into a riser. The sub includes two coupled bodies that are both axially and rotatably moveable relative to each other such that the sub enables the riser to move axially in response to tension or compression in the riser and rotate in response to surface vessel rotation or other torques. The sub expands and contracts in response to the tension or compression in the riser, and swivels in response to surface vessel rotation. | 10-31-2013 |