Methane recovery from gas hydrate-bearing sediments: An experimental study on the gas permeation characteristics under varying pressure

Anthony Okwananke, Aliakbar Hassanpouyouzband, Mehrdad Vasheghani Farahani, Jinhai Yang, Bahman Tohidi, Evgeny Chuvilin, Vladimir Istomin, Boris Bukhanov

Research output: Contribution to journalArticle

Abstract

In this paper, characteristics of gas permeation through gas hydrate-bearing sediments were explored under varying differential pressure for three types of sedimentary core samples, including 100 wt % silica sand, 95 wt % silica sand +5 wt % montmorillonite clay, and consolidated sandstone using a standard core-holder. Results of the experiments indicate that capillary breakthrough, hydrate-forced heave or agglomeration and also Klinkenberg effect play important roles in controlling the gas permeation through different porous sediments, depending on the sediment type and properties such as grain/pore size distribution and degree of consolidation. It was observed that due to the presence of large pores in unconsolidated silica sand core samples, the gas flow is dominated at both hydrate-free and hydrate-bearing cases by the capillary breakthrough mechanism rather than the gas slippage which resulted in direct relationship between the gas permeability and the differential pressure. This mechanism was also observed to be dominant while measuring the gas permeability for the hydrate-free sandstone core sample. For the unconsolidated sand-clay core samples, higher saturation of methane hydrate led to relatively higher gas permeability due to hydrate-forced heave phenomenon which pushed the sediment grains apart from each other or hydrate agglomeration that formed inter-grain pores. Klinkenberg effect became significant for the hydrate-free sand-clay and hydrate-bearing sandstone core samples; however, it was not observed to be dominant in the hydrate-bearing sand-clay core samples due to the hydrate-forced heave and agglomeration until the inlet pressure was sufficiently high.

Original languageEnglish
Pages (from-to)435-444
Number of pages10
JournalJournal of Petroleum Science and Engineering
Volume180
Early online date26 May 2019
DOIs
Publication statusPublished - Sep 2019

Fingerprint

Bearings (structural)
Gas hydrates
gas hydrate
Hydrates
Permeation
Sediments
Methane
experimental study
methane
Core samples
Recovery
sand
heave
Gases
agglomeration
gas
sediment
clay
silica
sandstone

Keywords

  • Breakthrough capillary pressure
  • Gas permeability
  • Hydrate-forced heave and agglomeration
  • Klinkenberg effect
  • Methane hydrate
  • Methane recovery

ASJC Scopus subject areas

  • Fuel Technology
  • Geotechnical Engineering and Engineering Geology

Cite this

Okwananke, Anthony ; Hassanpouyouzband, Aliakbar ; Vasheghani Farahani, Mehrdad ; Yang, Jinhai ; Tohidi, Bahman ; Chuvilin, Evgeny ; Istomin, Vladimir ; Bukhanov, Boris. / Methane recovery from gas hydrate-bearing sediments: An experimental study on the gas permeation characteristics under varying pressure. In: Journal of Petroleum Science and Engineering. 2019 ; Vol. 180. pp. 435-444.
@article{d5309b85e95349adb3af624a1b29adbc,
title = "Methane recovery from gas hydrate-bearing sediments: An experimental study on the gas permeation characteristics under varying pressure",
abstract = "In this paper, characteristics of gas permeation through gas hydrate-bearing sediments were explored under varying differential pressure for three types of sedimentary core samples, including 100 wt {\%} silica sand, 95 wt {\%} silica sand +5 wt {\%} montmorillonite clay, and consolidated sandstone using a standard core-holder. Results of the experiments indicate that capillary breakthrough, hydrate-forced heave or agglomeration and also Klinkenberg effect play important roles in controlling the gas permeation through different porous sediments, depending on the sediment type and properties such as grain/pore size distribution and degree of consolidation. It was observed that due to the presence of large pores in unconsolidated silica sand core samples, the gas flow is dominated at both hydrate-free and hydrate-bearing cases by the capillary breakthrough mechanism rather than the gas slippage which resulted in direct relationship between the gas permeability and the differential pressure. This mechanism was also observed to be dominant while measuring the gas permeability for the hydrate-free sandstone core sample. For the unconsolidated sand-clay core samples, higher saturation of methane hydrate led to relatively higher gas permeability due to hydrate-forced heave phenomenon which pushed the sediment grains apart from each other or hydrate agglomeration that formed inter-grain pores. Klinkenberg effect became significant for the hydrate-free sand-clay and hydrate-bearing sandstone core samples; however, it was not observed to be dominant in the hydrate-bearing sand-clay core samples due to the hydrate-forced heave and agglomeration until the inlet pressure was sufficiently high.",
keywords = "Breakthrough capillary pressure, Gas permeability, Hydrate-forced heave and agglomeration, Klinkenberg effect, Methane hydrate, Methane recovery",
author = "Anthony Okwananke and Aliakbar Hassanpouyouzband and {Vasheghani Farahani}, Mehrdad and Jinhai Yang and Bahman Tohidi and Evgeny Chuvilin and Vladimir Istomin and Boris Bukhanov",
year = "2019",
month = "9",
doi = "10.1016/j.petrol.2019.05.060",
language = "English",
volume = "180",
pages = "435--444",
journal = "Journal of Petroleum Science and Engineering",
issn = "0920-4105",
publisher = "Elsevier",

}

Methane recovery from gas hydrate-bearing sediments: An experimental study on the gas permeation characteristics under varying pressure. / Okwananke, Anthony; Hassanpouyouzband, Aliakbar; Vasheghani Farahani, Mehrdad; Yang, Jinhai; Tohidi, Bahman; Chuvilin, Evgeny; Istomin, Vladimir; Bukhanov, Boris.

In: Journal of Petroleum Science and Engineering, Vol. 180, 09.2019, p. 435-444.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Methane recovery from gas hydrate-bearing sediments: An experimental study on the gas permeation characteristics under varying pressure

AU - Okwananke, Anthony

AU - Hassanpouyouzband, Aliakbar

AU - Vasheghani Farahani, Mehrdad

AU - Yang, Jinhai

AU - Tohidi, Bahman

AU - Chuvilin, Evgeny

AU - Istomin, Vladimir

AU - Bukhanov, Boris

PY - 2019/9

Y1 - 2019/9

N2 - In this paper, characteristics of gas permeation through gas hydrate-bearing sediments were explored under varying differential pressure for three types of sedimentary core samples, including 100 wt % silica sand, 95 wt % silica sand +5 wt % montmorillonite clay, and consolidated sandstone using a standard core-holder. Results of the experiments indicate that capillary breakthrough, hydrate-forced heave or agglomeration and also Klinkenberg effect play important roles in controlling the gas permeation through different porous sediments, depending on the sediment type and properties such as grain/pore size distribution and degree of consolidation. It was observed that due to the presence of large pores in unconsolidated silica sand core samples, the gas flow is dominated at both hydrate-free and hydrate-bearing cases by the capillary breakthrough mechanism rather than the gas slippage which resulted in direct relationship between the gas permeability and the differential pressure. This mechanism was also observed to be dominant while measuring the gas permeability for the hydrate-free sandstone core sample. For the unconsolidated sand-clay core samples, higher saturation of methane hydrate led to relatively higher gas permeability due to hydrate-forced heave phenomenon which pushed the sediment grains apart from each other or hydrate agglomeration that formed inter-grain pores. Klinkenberg effect became significant for the hydrate-free sand-clay and hydrate-bearing sandstone core samples; however, it was not observed to be dominant in the hydrate-bearing sand-clay core samples due to the hydrate-forced heave and agglomeration until the inlet pressure was sufficiently high.

AB - In this paper, characteristics of gas permeation through gas hydrate-bearing sediments were explored under varying differential pressure for three types of sedimentary core samples, including 100 wt % silica sand, 95 wt % silica sand +5 wt % montmorillonite clay, and consolidated sandstone using a standard core-holder. Results of the experiments indicate that capillary breakthrough, hydrate-forced heave or agglomeration and also Klinkenberg effect play important roles in controlling the gas permeation through different porous sediments, depending on the sediment type and properties such as grain/pore size distribution and degree of consolidation. It was observed that due to the presence of large pores in unconsolidated silica sand core samples, the gas flow is dominated at both hydrate-free and hydrate-bearing cases by the capillary breakthrough mechanism rather than the gas slippage which resulted in direct relationship between the gas permeability and the differential pressure. This mechanism was also observed to be dominant while measuring the gas permeability for the hydrate-free sandstone core sample. For the unconsolidated sand-clay core samples, higher saturation of methane hydrate led to relatively higher gas permeability due to hydrate-forced heave phenomenon which pushed the sediment grains apart from each other or hydrate agglomeration that formed inter-grain pores. Klinkenberg effect became significant for the hydrate-free sand-clay and hydrate-bearing sandstone core samples; however, it was not observed to be dominant in the hydrate-bearing sand-clay core samples due to the hydrate-forced heave and agglomeration until the inlet pressure was sufficiently high.

KW - Breakthrough capillary pressure

KW - Gas permeability

KW - Hydrate-forced heave and agglomeration

KW - Klinkenberg effect

KW - Methane hydrate

KW - Methane recovery

UR - http://www.scopus.com/inward/record.url?scp=85066263440&partnerID=8YFLogxK

U2 - 10.1016/j.petrol.2019.05.060

DO - 10.1016/j.petrol.2019.05.060

M3 - Article

VL - 180

SP - 435

EP - 444

JO - Journal of Petroleum Science and Engineering

JF - Journal of Petroleum Science and Engineering

SN - 0920-4105

ER -