Investigating Multiphase Flow Phenomena in Fine-Grained Reservoir Rocks: Insights from Using Ethane Permeability Measurements over a Range of Pore Pressures
Joint Authors
Letham, Eric Aidan
Bustin, Robert Marc
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-03-07
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
The ability to quantify effective permeability at the various fluid saturations and stress states experienced during production from shale oil and shale gas reservoirs is required for efficient exploitation of the resources, but to date experimental challenges prevent measurement of the effective permeability of these materials over a range of fluid saturations.
To work towards overcoming these challenges, we measured effective permeability of a suite of gas shales to gaseous ethane over a range of pore pressures up to the saturated vapour pressure.
Liquid/semiliquid ethane saturation increases due to adsorption and capillary condensation with increasing pore pressure resulting in decreasing effective permeability to ethane gas.
By how much effective permeability to ethane gas decreases with adsorption and capillary condensation depends on the pore size distribution of each sample and the stress state that effective permeability is measured at.
Effective permeability decreases more at higher stress states because the pores are smaller at higher stress states.
The largest effective permeability drops occur in samples with dominant pore sizes in the mesopore range.
These pores are completely blocked due to capillary condensation at pore pressures near the saturated vapour pressure of ethane.
Blockage of these pores cuts off the main fluid flow pathways in the rock, thereby drastically decreasing effective permeability to ethane gas.
American Psychological Association (APA)
Letham, Eric Aidan& Bustin, Robert Marc. 2018. Investigating Multiphase Flow Phenomena in Fine-Grained Reservoir Rocks: Insights from Using Ethane Permeability Measurements over a Range of Pore Pressures. Geofluids،Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1157923
Modern Language Association (MLA)
Letham, Eric Aidan& Bustin, Robert Marc. Investigating Multiphase Flow Phenomena in Fine-Grained Reservoir Rocks: Insights from Using Ethane Permeability Measurements over a Range of Pore Pressures. Geofluids No. 2018 (2018), pp.1-13.
https://search.emarefa.net/detail/BIM-1157923
American Medical Association (AMA)
Letham, Eric Aidan& Bustin, Robert Marc. Investigating Multiphase Flow Phenomena in Fine-Grained Reservoir Rocks: Insights from Using Ethane Permeability Measurements over a Range of Pore Pressures. Geofluids. 2018. Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1157923
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1157923