Gas hydrates in near-mudline subsea sediments present significant challenges in the production of
underlying hydrocarbons, impacting wellbore integrity and placement of subsea equipment. As
the fluids of an underlying reservoir flow to the mudline, heat carried by the fluids warms nearwell
sediments and dissociates hydrates, which releases gas that can displace and fracture near
well soil. This gas release may be calculated with numerical simulations that model heat and
mass transfer in hydrate-bearing sediments. The nature and distribution of hydrates within the
sediments, the melting behavior of the hydrates, the thermal and mechanical properties of these
shallow sediments, and the amount of hydrates contained in the sediments are required for the
model simulations. Such information can be costly to acquire and characterize with certainty for
an offshore development. In this information environment, it is critical to understand what
information, processes, and calculations are required in order to ensure safe, robust systems, that
are not overly conservative, to produce the hydrocarbon reservoirs far below the hydrates.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:BVAU.2429/2327 |
| Date | 07 1900 |
| Creators | Peters, David, Hatton, Greg, Mehta, Ajay, Hadley, Chris |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | text |
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