Douglas Paul Blalock
Engineering at Rolling Mdw Ln, Katy, TX

2012027, Nov 1, 2012

Apr 19, 2012

13/451426

Graeme Steele - Tomball TX, US
Douglas Paul Blalock - Katy TX, US
Steve Eggert - Houston TX, US
Chau Nguyen - Houston TX, US
Paul Shepherd - Houston TX, US
Trevor Smith - Spring TX, US
David Wilkinson - Houston TX, US

BP Corporation North America Inc. - Houston TX

E21B 43/16

166345

A system for transferring fluids from a free-standing riser to a surface vessel comprises a first valve assembly including a first valve spool and a first isolation valve configured to control the flow of fluids through the first valve spool. In addition, the system comprises a second valve assembly releasably coupled to the first valve assembly with a hydraulically actuated connector. The second valve assembly includes a second valve spool and a second isolation valve configured to control the flow of fluids through the second valve spool. Further, the system comprises a deployment/retrieval rigging coupled to the first valve assembly and configured to suspend the first valve assembly and the second valve assembly from the surface vessel. Each isolation valve has an open position allowing fluid flow therethrough and a closed position restricting fluid flow therethrough, and each isolation valve is biased to the closed position.

2013004, Feb 28, 2013

Apr 26, 2012

13/457074

Pierre Albert Beynet - Houston TX, US
Douglas Paul Blalock - Katy TX, US
Kevin James Devers - Katy TX, US
Trent James Fleece - Houston TX, US
Kinton Lowell Lawler - Fulshear TX, US
Jason Edward Waligura - Bellaire TX, US

BP CORPORATION NORTH AMERICA INC. - Houston TX

E21B 43/01

166341, 166344

A device for capturing hydrocarbons discharged from a subsea flow passage comprises an elongate tubular structure having a central axis, a first end, and a second end opposite the first end. The second end is open and in fluid communication with the first end. The tubular structure includes a rigid stabbing member extending axially from the second end and configured to he inserted into the flow passage. In addition, the device comprises an annular flexible skirt disposed about the stabbing member. The skirt is secured to the stabbing member and extends radially outward from the stabbing member. The skirt is configured to flex from an unflexed position to a flexed position upon insertion of the stabbing member into the flow passage. The skirt is biased to the unflexed position and has an outer diameter in the unflexed position that is greater than the inner diameter of the flow passage.

2012032, Dec 27, 2012

Apr 26, 2012

13/457062

Pierre Albert Beynet - Houston TX, US
Douglas Paul Blalock - Katy TX, US
Kevin James Devers - Katy TX, US

BP CORPORATION NORTH AMERICA INC. - Houston TX

E21B 43/013, E21B 17/01, E21B 33/038

166353, 166368, 166367

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.

2012027, Nov 1, 2012

Apr 26, 2012

13/457005

Pierre Albert Beynet - Houston TX, US
Kevin James Denver - Katy TX, US
Norman Dennis McMullen - Cypress TX, US
Douglas Paul Blalock - Katy TX, US

BP CORPORATION NORTH AMERICA INC. - Houston TX

E21B 43/01

166345

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.

2012027, Nov 1, 2012

Apr 26, 2012

13/456937

Douglas Paul Blalock - Katy TX, US
Michael Patrick Cleary - Denver CO, US
Thomas Patrick Mataway - Spring TX, US
Steven Dirk Koepke - Houston TX, US

BP CORPORATION NORTH AMERICA INC. - Houston TX

E21B 17/01, E21B 43/013, E21B 33/13, E21B 33/064

166341, 166367, 166363, 166335

A riser system connects a subsea source of hydrocarbons to a collection vessel. The system includes a riser, a lower end of the riser fluidly coupled to a seal stem, the seal stem in turn fluidly attached to a lower riser assembly through a polished bore receptacle. The upper end of the riser is connected to the collection vessel, the riser being maintained in a near vertical position. Methods of installing and using the riser systems for killing and cementing wells are described.