Pore-Scale Investigations of Hydrate Bearing Sediments

Schindler, M.; Batzle, Michael

doi:10.1142/9789814623063_0007

Cited by 2 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure shows a schematic of the experimental setup. More detailed information about the experimental setup and methodology can be found in Schindler and Batzle ().…”

Section: Methodsmentioning

confidence: 99%

“…In this study, the hydrate‐bearing sample was monitored after the hydrate formation process was completed. Micro CT imaging of THF‐hydrate dissociation was discussed by Schindler and Batzle (). X‐ray source voltage of 150 kV and power of 6.2 W were used for all tomography scans.…”

Section: Methodsmentioning

confidence: 99%

“…Figure 3 shows a schematic of the experimental setup. More detailed information about the experimental setup and methodology can be found in Schindler and Batzle (2014). After the described sample preparation, an isostatic confining pressure of 3.3 MPa was applied, and the temperature was gradually decreased below hydrate stability temperature (4.3°C for 100% THF hydrate saturation).…”

Section: Ultrasonic Velocity Measurementsmentioning

confidence: 99%

See 2 more Smart Citations

Micro X‐Ray computed tomography imaging and ultrasonic velocity measurements in tetrahydrofuran‐hydrate‐bearing sediments

Schindler

Batzle

Prasad

2016

Geophysical Prospecting

Self Cite

View full text Add to dashboard Cite

Naturally occurring gas hydrates contain significant amounts of natural gas that might be produced as an energy resource in the foreseeable future. Thus, it is necessary to understand the pore‐space characteristics of hydrate reservoirs, particularly the pore‐scale distribution of the hydrate and its interaction with the sediment. Four end‐member models for hydrate distribution in the pore space are pore filling, sediment‐frame component, envelope cementing, and contact cementing. The goal of this study is to compare the models with pore‐scale hydrate distributions obtained in laboratory‐formed hydrates. Our results verify hydrate pore‐scale distributions by direct, visual observations that were previously implied by indirect, elastic property measurements. Laboratory measurements were conducted using tetrahydrofuran as a guest molecule since tetrahydrofuran hydrate can be used as a proxy for naturally occurring hydrates. We performed micro X‐ray computed tomography to obtain information about the distribution of hydrate in the pore space of synthetic sediment (glass beads). We also made ultrasonic velocity measurements on the same samples. Micro X‐ray computed tomography images and ultrasonic velocity measurements both indicate that the tetrahydrofuran hydrate forms in the pore space with a part of the hydrate bridging the grains without touching the grain surfaces. These hydrate‐bearing sediments appear to follow a pore‐filling model with a portion of the hydrate becoming a load‐bearing part of the sediment frame.

show abstract

“…Figure shows a schematic of the experimental setup. More detailed information about the experimental setup and methodology can be found in Schindler and Batzle ().…”

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Ultrasonic Velocity Measurementsmentioning

confidence: 99%

See 1 more Smart Citation

Micro X‐Ray computed tomography imaging and ultrasonic velocity measurements in tetrahydrofuran‐hydrate‐bearing sediments

Schindler

Batzle

Prasad

2016

Geophysical Prospecting

Self Cite

View full text Add to dashboard Cite

show abstract

“…On the other hand, the diameter of the sample should be big enough to make successful acoustic measurements with piezo-ceramic transducers. For example, a sample of 2 cm in diameter was used for acoustic measurements during the hydrate formation in sand (Schindler & Batzle, 2015).…”

Section: Introductionmentioning

confidence: 99%

Environmental cell for in situ X-ray synchrotron micro-CT imaging with simultaneous acoustic measurements

Drobchik

Никитин

Fokin

et al. 2022

J Synchrotron Radiat

View full text Add to dashboard Cite

Synchrotron radiation provides the necessary spatial and temporal resolution for non-invasive operando studies of dynamic processes under complex environmental conditions. Here a new environmental cell for simultaneous in situ dynamic X-ray imaging and measuring acoustic properties of geological samples is presented. The primary purpose of this cell is to study gas-hydrate formation in porous geo-materials and its influence on their acoustic properties. The cell is designed for cylindrical samples of 9 mm in diameter, confining and pore pressures up to 12 MPa, and temperatures from −20°C to room temperature. The cell is portable and can be easily assembled and operated at different X-ray sources. This cell enables a wide range of experiments studying physical/chemical processes in the Earth subsurface that change the mechanical properties of rocks (geochemical reactions, phase transitions, etc.).

show abstract

Pore-Scale Investigations of Hydrate Bearing Sediments

Cited by 2 publications

References 0 publications

Micro X‐Ray computed tomography imaging and ultrasonic velocity measurements in tetrahydrofuran‐hydrate‐bearing sediments

Micro X‐Ray computed tomography imaging and ultrasonic velocity measurements in tetrahydrofuran‐hydrate‐bearing sediments

Environmental cell for in situ X-ray synchrotron micro-CT imaging with simultaneous acoustic measurements

Contact Info

Product

Resources

About