Shankar Uluvana Bhat - Houston TX, US John Christian Hartley Mungall - Houston TX, US David Brian Andersen - Houston TX, US Kevin Gerard Haverty - Houston TX, US Sean K. Barr - Magnolia TX, US Davinder Manku - Magnolia, AU
Assignee:
Kellogg Brown & Root LLC - Houston TX
International Classification:
E21B 29/12
US Classification:
166355, 166350, 166367, 4052244
Abstract:
Disclosed are compliant variable tension risers () to connect deep-water subsea wellheads () to a single floating platform () in wet tree or dry try systems. The variable tension risers () allow several subsea wellheads (), in water depths from 1220 to 3050 meters, at lateral offsets from one-tenth to twice the depth or more, to tie back to a single floating platform (). Also disclosed are methods to counter buoyancy and install variable tension risers using a weighted chain ballast line ().
Dry Tree Subsea Well Communications Methods Using Variable Tension Large Offset Risers
Shankar Uluvana Bhat - Houston TX, US John Christian Hartley Mungall - Houston TX, US Kevin Gerard Haverty - Houston TX, US David Brian Andersen - Houston TX, US William Lewis Greiner - Houston TX, US
Assignee:
Kellogg Brown & Root LLC - Houston TX
International Classification:
E21B 29/12
US Classification:
166367, 166355, 4052244
Abstract:
Disclosed are methods to counter buoyancy and install variable tension risers using a weighted chain ballast line. An example of an apparatus used in conjunction with the embodiments includes compliant variable tension risers to connect deep-water subsea wellheads to a single floating platform. The variable tension risers allow several subsea wellheads, in water depths from 4,000 to 10,000 feet, at lateral offsets from one-tenth to one-half of the depth, to tie back to a single floating dry tree semi-submersible platform.
Dry Tree Subsea Well Communications Apparatus Using Variable Tension Large Offset Risers
Shankar Uluvana Bhat - Houston TX, US John Christian Hartley Mungall - Houston TX, US Kevin Gerard Haverty - Houston TX, US David Brian Andersen - Houston TX, US William Lewis Greiner - Houston TX, US
Assignee:
Kellogg Brown & Root LLC - Houston TX
International Classification:
E21B 29/12
US Classification:
166355, 166350, 166367, 4052244
Abstract:
Disclosed are compliant variable tension risers () to connect deep-water subsea wellheads () to a single floating platform (). The variable tension risers () allow several subsea wellheads (), in water depths from 4,000 to 10,000 feet, at lateral offsets from one-tenth to one-half of the depth, to tie back to a single floating dry tree semi-submersible platform ().
Subsea Well Communications Apparatus And Method Using Variable Tension Large Offset Risers
Shankar U. Bhat - Houston TX, US John Christian Hartley Mungall - Houston TX, US David Brian Andersen - Houston TX, US Kevin Gerard Haverty - Houston TX, US Sean K. Barr - Magnolia TX, US Davinder Manku - Perth, GB
Assignee:
Kellogg Brown & Root LLC - Houston TX
International Classification:
E21B 29/12
US Classification:
166355, 166350, 166367, 4052244
Abstract:
The current subject matter relates to compliant variable tension risers to connect deep-water subsea wellheads to a single floating platform in wet tree or dry try systems. The variable tension risers allow several subsea wellheads, in water depths from 1220 to 3050 meters, at lateral offsets from one-tenth to twice the depth or more, to tie back to a single floating platform. Also, the current subject matter relates to methods to counter buoyancy and install variable tension risers using a weighted chain ballast line.
Dry Tree Subsea Well Communications Apparatus And Method Using Variable Tension Large Offset Risers
Shankar Bhat - Houston TX, US John Mungall - Houston TX, US Kevin Haverty - Houston TX, US David Andersen - Houston TX, US William Greiner - Houston TX, UY
Assignee:
KELLOGG BROWN AND ROOT, INC. - Houston TX
International Classification:
E21B 29/12
US Classification:
166352000, 166367000
Abstract:
Disclosed are compliant variable tension risers () to connect deep-water subsea wellheads () to a single floating platform (). The variable tension risers () allow several subsea wellheads (), in water depths from 4,000 to 10,000 feet, at lateral offsets from one-tenth to one-half of the depth, to tie back to a single floating dry tree semi-submersible platform (). Also disclosed are methods to counter buoyancy and install variable tension risers using a weighted chain ballast line ().
Flexible Catenary Riser Having Distributed Sag Bend Ballast
Shankar Bhat - Houston TX, US Kartik Sharma - Houston TX, US Mark Kalman - Houston TX, US
Assignee:
DEEPFLEX INC. - Houston TX
International Classification:
E21B 17/01
US Classification:
166367
Abstract:
The present disclosure relates to a subsea catenary and a method of distributing ballast on a pipe. The subsea catenary includes a flexible pipe, and a selected amount of ballast attached to the flexible pipe, in which the ballast is distributed in a wave pattern on a sag bend of the subsea catenary. The method includes identifying a position of a sag bend in a flexible pipe of the subsea catenary, and applying ballast in a wave distribution along the subsea pipe at the identified position.
Consultant
Intecsea
Marine Pipelines Riser Discipline Manager
Deepflex Sep 2006 - Jan 2010
Director For Systems and Applications Engineering
Kbr / Granherne 2000 - Aug 2006
Senior Technical Advisor and Riser Engineering Manager
Abb 1999 - 2000
Principal Naval Architect In Deepwater Group
Education:
Massachusetts Institute of Technology 1981 - 1985
Indian Institute of Technology, Kharagpur 1973 - 1978
Skills:
Feed Fpso Pre Feed Subsea Engineering Orcaflex Offshore Drilling Pipelines Oil/Gas Risers Upstream Petroleum Epc Deepwater Engineering Energy Field Development