Jun Yoneda

2D and 3D Geomechanical Numerical Simulation for Evaluating Well-Stability and Reservoir Consolidation during the Production from the HYDRATE P1 Well on the Alaska North Slope

Abstract Methane hydrate production via depressurization can induce geomechanical changes in hydrate-bearing sediments, thereby impacting production performance and risking subsidence and wellbore instability. Here, a fully coupled thermo-hydro-mechanical simulator (COTHMA) is ap...

Alaska North Slope HYDRATE 02 Geo Data Well Multicomponent Inversion and NMR Log and Core Analysis of the B1 Sand Gas Hydrate Reservoir

Abstract The Collaborative Gas Hydrate R&D Project in Alaska, a joint initiative by the Japan Organization for Metals and Energy Security, the U.S. Department of Energy, and the U.S. Geological Survey, aims to advance understanding of gas hydrate reservoir systems and their produ...

Lithological Control of Gas Hydrate Saturation Determined by Pressure Core Analysis in Subpermafrost Reservoirs of the Alaska North Slope (HYDRATE-02 Geo Data Well)

Abstract Quantitatively degassing pressure cores by controlled depressurization is a key approach to characterizing gas hydrate reservoirs by measuring the gas hydrate saturation (Sh) of sediments. We measured Sh for 53 core sections from the Alaska North Slope during the JOGMEC-...

Strength, Stiffness, and Poisson’s Ratio Measurements for Cements Used in the Well Completions for the Extended-Duration Gas Production Test on the Alaskan North Slope

Abstract As part of an extended-duration production test from a natural gas hydrate reservoir on the Alaska North Slope, a suite of optical-fiber sensors was encased in the completion cement to provide stable downhole monitoring around each of the four project wells. How the sens...