Match!
P.G. Ranjith
Monash University
403Publications
40H-index
5,322Citations
Publications 403
Newest
Published on Dec 1, 2019in Journal of CO 2 Utilization5.19
B.L. Avanthi Isaka1
Estimated H-index: 1
(Monash University),
P.G. Ranjith40
Estimated H-index: 40
(Monash University)
+ 3 AuthorsAsadul Haque17
Estimated H-index: 17
(Monash University)
Abstract Supercritical carbon dioxide (ScCO 2 ) fracturing is an attractive method which has favourable physical and chemical characteristics for the enhancement of underground reservoir permeability, and as a replacement for the current water-based fracturing in reservoir stimulation. However, the behaviour of ScCO 2 as a fracturing fluid and the reservoir response to the injection of ScCO 2 remain unclear in the geothermal environment. Therefore, in this study, a series of ScCO 2 fracturing te...
Published on 2019in Journal of Petroleum Science and Engineering2.89
Xin Li (XJU: Xinjiang University), Xuehai Fu12
Estimated H-index: 12
(CUMT: China University of Mining and Technology)
+ 7 AuthorsShun Liang (CUMT: China University of Mining and Technology)
Abstract High volatile bituminous coal (HVBC) reservoirs are now regarded as one of the most important targets for coalbed methane (CBM) exploration and development in northwestern China. Water invasion during coalbed methane reservoir fracturing can induce water blockage damage, leading to decreased relative permeability of gas and reduced production of CBM well. To study the influences of heterogeneities of seepage pore and fracture on water invasion degree (WID), water flooding experiment usi...
Published on Nov 1, 2019in Fuel5.13
Guanglei Zhang1
Estimated H-index: 1
(Monash University),
P.G. Ranjith40
Estimated H-index: 40
(Monash University)
+ 3 AuthorsD.Y. Li2
Estimated H-index: 2
Abstract Microstructural evolution in coal due to CO 2 injection directly influences the gas transport and storage properties of coal during CO 2 sequestration in deep coal seams. Using synchrotron X-ray tomography, we performed CT imaging under simulated reservoir conditions with a novel X-ray transparent core holder and investigated the time-dependent evolution of 3-D microstructures of an anthracite coal with 1.37% moisture as-received interacted with supercritical CO 2 (ScCO 2 ). Three sets ...
Published on Jul 1, 2019in Engineering Geology3.91
Mostafa Asadizadeh3
Estimated H-index: 3
,
Mahdi Moosavi11
Estimated H-index: 11
(UT: University of Tehran)
+ 2 AuthorsP.G. Ranjith40
Estimated H-index: 40
(Monash University)
Abstract Understanding the mechanical behaviour of jointed rock particularly under uniaxial compression is so important for an appropriate design of structures on or within a rock mass. Jointed rocks may consist of persistent or non-persistent joints. Typically, the persistent joints can dominate the whole mechanical behaviour of jointed rocks while the effects of non-persistent joints on the rock masses require careful consideration during the characterisation process. Majority of the earlier s...
Published on Oct 1, 2019in Engineering Fracture Mechanics2.91
V.R.S. De Silva4
Estimated H-index: 4
(Monash University),
P.G. Ranjith40
Estimated H-index: 40
(Monash University)
Abstract Artificial fracture stimulation in host rock formations is a potential technique to improve the recovery efficiency of in-situ leaching mining applications, which is gradually creeping in as an alternative mining method for mineral extraction in low-grade ore deposits. In this study, we report two new methods of fracture stimulation by injecting a modified Soundless Cracking Demolition Agent (SCDA) into a target rock through an injection well as opposed to completely filling the injecti...
Published on Oct 1, 2019in Journal of CO 2 Utilization5.19
Xiaogang Zhang (Monash University), P.G. Ranjith40
Estimated H-index: 40
(Monash University)
Abstract Enhanced coalbed methane (ECBM) recovery performed by injecting CO 2 into coal reservoirs has been found to be a viable option for methane recovery, while CO 2 injection into coal seams, especially unmineable ones, has great potential to sequestrate large volumes of CO 2 to mitigate greenhouse gas accumulation in the atmosphere. This study was therefore initiated to investigate the effect of CO 2 flooding on ECBM recovery and CO 2 storage in coal. A series of CO 2 core flooding tests wa...
Published on Oct 1, 2019in Fuel5.13
M.A.A Ahamed , M.S.A. Perera24
Estimated H-index: 24
+ 2 AuthorsStephan K. Matthäi28
Estimated H-index: 28
Abstract Coal seam gas has attracted global interest due to its economic feasibility, high gas storage capacity, and its capacity to cater to the world energy crisis in the long run. One of the most effective ways of extracting coal seam gas is through the hydraulic fracturing process. For the success of the hydraulic fracturing process, the proppant performance plays a key role. Poor proppant performance is a common observation in the field, and studies on shale and siltstone reservoirs show th...
Published on May 22, 2019in Computational particle mechanics
Z. Q. Zhou , P.G. Ranjith40
Estimated H-index: 40
(Monash University)
+ 3 AuthorsZ. H. Li
The discrete element method (DEM) cannot effectively account for macroscale problems because of its high computational cost and time-consuming nature, especially for fluid–solid coupling problems. Therefore, a spatially scaled-down model, which should be established based on a set of scaling laws, is commonly employed to study the behaviors of the macroscale prototype. In the present study, various basic scaling relationships proposed by previous researchers for a scaled-down model are summarize...
Published on Jan 31, 2019in Natural resources research
Guanglei Zhang1
Estimated H-index: 1
(Monash University),
P.G. Ranjith40
Estimated H-index: 40
(Monash University)
+ 2 AuthorsXavier Choi5
Estimated H-index: 5
(Monash University)
High-volatile bituminous coal samples were reacted in deionized water with supercritical CO2 (ScCO2–water) under simulated in situ pressure and temperature conditions (8 MPa and 40 °C) in unconfined stress state for 14 days, in order to characterize potential CO2–water–coal reactions. Micro-structural changes were identified pre- and post-experiment using X-ray powder diffraction (XRD) analysis for powdered coal (mineralogical changes), optical microscopy and scanning electron microscopy (SEM) f...
12345678910