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Keywords: depressurization
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Proceedings Papers

Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-31067-MS
... energy with environmental considerations. flow in porous media porous medium flow assurance upstream oil & gas hydrate dissociation process artificial intelligence normalized permeability depressurization hyd relation dissociation hydrate dissociation hydrate saturation permeability...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30663-MS
...Abstract Abstract Two major concerns in offshore production are Methane Hydrates and Paraffin Plugs. They may stop wells for months, causing high financial losses. Sometimes, depressurization techniques allow hydrate removal. Another strategy is using coiled tubing or a similar unit to perform...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30779-MS
...-up and shutdown; production Ramp-up; maximum no-touch time without hydrates; Depressurization of the network to remove hydrates and ensure flaring system adequacy; Optimized well routing; and Hydrodynamic slugging. All the simulations accounted for the uncertainty of the associated controlling...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30784-MS
... annulus seal assembly casing and cementing qualification procedure hanger shutdown procedure subsea system compression well integrity offshore technology conference depressurization Campos , G. , Piedade , T. S. , Ramos , A.C. , Anjos , J. L. , Azevedo , A. C...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29374-MS
... in onshore Arctic regions as well as in deepwater regions offshore Japan and China, with further testing planned in other offshore areas. The tests conducted in the Arctic provided a proof of concept that gas hydrates can be dissociated and produced by simple depressurization below the hydrate stability...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29432-MS
... requirements. thermal conductivity gas production discretization boundary drillstem testing depressurization hydrate fluid dynamics hydrate dissociation hydrate deposit hydrate accumulation investigation drillstem/well testing production test saturation moridis field test spatial...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29237-MS
... with Anti-Agglomerant Injection in a Subsea Tieback . Offshore Technology Conference . blockage hydrate hydrate blockage flow assurance deposit shutdown fraction modeling & simulation flowline depressurized restart likelihood depressurization restart hydrate equilibrium region high...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29315-MS
... This study investigates how the variation in sediment layer geometry of hydrate-bearing sediments (HBS) affects geomechanical behaviors of HBS under depressurization. Two reservoir models with different layering structures but with the same hydrate quantity were constructed and the reservoir...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2018
Paper Number: OTC-28759-MS
... 3 in the South China Sea and it was supported by fully self-developed technology, process and facilities. complex reservoir reservoir characterization exploitation shallow layer hydrate solid fluidization exploitation marine natural gas hydrate hydrate depressurization field...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2018
Paper Number: OTC-28919-MS
... data engineering assessment remediation of hydrates oilfield chemistry manifold dead oil blockage remediation depressurization offshore technology conference remediation hydrate remediation orange line scale inhibition upstream oil & gas pt sensor operation scale remediation...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2016
Paper Number: OTC-27001-MS
... coiled tubing hydrate inhibition pipeline remediate remediation of hydrates hydrate remediation wax remediation asphaltene inhibition pipeline blockage hydrate plug injection offshore technology conference inhibitor depressurization deposition active heating Marcelo , A. L...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2016
Paper Number: OTC-27043-MS
... drilling fluids and materials subsea flowline efficiency cable hydrate inhibition production logging depressurization production monitoring reservoir surveillance drilling fluid formulation electrically trace paraffin remediation eth blanket trace heating cable oilfield chemistry...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2015
Paper Number: OTC-25739-MS
...). us government production method depressurization probability gas hydrate gulf production system infrastructure methane hydrate boswell pipeline natural gas price mexico united states natural gas offshore technology conference economic viability upstream oil & gas export...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2014
Paper Number: OTC-25243-MS
.... The technique used to dissociate the ice-like material was "depressurization method" that had been applied in the previous production test in Mallik site, the Northwest Territories, Canada in 2007-2008. Japan Oil, Gas and Metals National Corporation (JOGMEC) as a part of MH21, the Research Consortium...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2014
Paper Number: OTC-25308-MS
... instability. In this study, 2D axisymmetric numerical modeling is conducted to simulate gas hydrate production from the Ulleung basin by depressurization. The simulation incorporates the physical processes of hydrate dissociation, the pore fluid flow and the geomechanical response of hydrate-bearing sediments...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2014
Paper Number: OTC-25384-MS
... depressurization flow assurance hydrate deposit dissociation field test gas hydrate upstream oil & gas hydrate gas production boundary hydrate accumulation Chough , S.K. , Lee , H.J. , and Yoon , S.H. 2000 . Marine Geology of Korean Seas , 2nd edition , Chap. 3, Sec. 3.13...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 2010
Paper Number: OTC-20548-MS
... hydrates by means of depressurization and thermal stimulation using a single horizontal well placed in the middle of the HBL. The simulation results indicated that the hydrates dissociate along cylindrical interfaces around the well, and along horizontal dissociation interfaces at the top and bottom...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 2010
Paper Number: OTC-20551-MS
... the production potential of hydrate accumulations in the Shenhu area. We simulate the hydrate dissociation and the corresponding gas production induced by depressurization at a single vertical well. We also test the gas production potential by alternately producing fluid and injecting hot water (huff-and-puff...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 2010
Paper Number: OTC-21048-MS
... by heating from the well with associated gas release and forced pressure increase, which could undermine the stability of the slope. In the second case, depressurization leads to hydrate dissociation over a large lateral distance that may provide a weakening potential slip surface along the sloping hydrate...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2008
Paper Number: OTC-19572-MS
... Abstract In this study we investigated coupled multiphase flow, thermal, thermodynamic and geomechanical behavior of oceanic Hydrate Bearing Sediments (HBS), during depressurization-induced gas production in general, and potential wellbore instability and casing deformation in particular. We...

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