A5035118280- Hydraulic Fracturing and Reservoir Analysis
- Reservoir Engineering and Simulation Methods
- Hydrocarbon exploration and reservoir analysis
- Geothermal Energy Systems and Applications
- Enhanced Oil Recovery Techniques
- CO2 Sequestration and Geologic Interactions
- earthquake and tectonic studies
- Drilling and Well Engineering
- Seismic Imaging and Inversion Techniques
- Carbon Dioxide Capture Technologies
- Geological and Geochemical Analysis
- High-pressure geophysics and materials
- Geochemistry and Geologic Mapping
- Wind Energy Research and Development
- Methane Hydrates and Related Phenomena
- Rock Mechanics and Modeling
- Oil and Gas Production Techniques
- Wind and Air Flow Studies
- Groundwater flow and contamination studies
- Gastrointestinal motility and disorders
- Geophysical and Geoelectrical Methods
- Seismology and Earthquake Studies
- Atmospheric and Environmental Gas Dynamics
- Geological formations and processes
- Geotechnical Engineering and Underground Structures
University of Auckland
2013-2023
Griffith University
2022-2023
Office for National Statistics
2019
Golder Associates (United Kingdom)
2003
Texas A&M University
2000-2002
Mitchell Institute
2000-2002
Stanford University
1997
This work develops a wind intensity interference coefficient which captures the caused by an upwind turbine on downwind in same flow. includes use of Weibull distribution to handle variability velocity, and also accounts for geometric relationship between turbines boundaries sector. then forms part mixed integer linear program (MILP) is used optimise locations within farm site. The MILP approach exact method that can guarantee determined model are optimal with respect priori chosen set...
Abstract Understanding injection‐induced microseismicity in geothermal systems can provide insight into reservoir connectedness. However, fault and complexity are difficult to represent simple analytical models, which makes it discern clear relationships from incidental associations. Here, we have used data‐driven models study how fluid injection related the Rotokawa (New Zealand) Hellisheiði (Iceland) fields. We tested two classes of model: (a) lagged linear regression seismicity rate as a...
Summary The focus of this work is on the behavior hydrocarbon-gas viscosity and gas density. hydrocarbon gases a function pressure, temperature, density, molecular weight, while density weight. This presents new approaches for prediction over practical ranges composition. These correlations can be used any production or transportation operations. In work, we created large database measured was to evaluate existing models We also provide viscosity, as well optimization models, using our...
The study of cardiac energetics commonly involves the use isolated muscle preparations (papillary muscles or trabeculae carneae). Their contractile performance has been observed to vary inversely with thickness. This inverse dependence attributed, almost without exception, inadequate diffusion oxygen into centers large diameter. It is thus hypothesized that radius-dependent diminution reflects development an anoxic core. We tested this hypothesis theoretically by solving a modification...
Abstract The goal of hydraulic stimulation is to increase formation permeability in the near vicinity a well. However, there remain technical challenges around measuring outcome this operation. During two enhanced geothermal system stimulations South Australia, Paralana 2011 and Habanero 2003, extensive catalogs microseismicity were recovered. It often assumed that shear failure existing fractures main mechanism behind both induced earthquakes any enhancement. This underpins common notion...
Summary Petroleum is generated from organic-rich sediments (source rocks) containing organic matter originating biological materials. During burial of sediments, the increase in temperature results a series geochemical reactions which leads biopolymers to geopolymers, often collectively called kerogen, are precursors petroleum. The amount, type and composition petroleum dependent upon nature geological history source rock. most important parameters rock its maturity governed by...
Abstract The dependence of reservoir permeability and porosity on pressure can have a significant impact well performance. This paper addresses this issue theoretically, via simulation, production data analysis type curves. presents the single phase fluid flow equation for slightly compressible in stress sensitive form which be solved Laplace space to generate profiles rate versus time (for constant bottomhole production). is achieved by writing terms derivatives function involving sum...
Depletion of interstitial cells Cajal (ICC) networks is known to occur in several gastrointestinal motility disorders. Although confocal microscopy can effectively image and visualize the spatial distribution ICC networks, current descriptors depletion are limited cell numbers volume computations. Spatial changes network structural properties have not been quantified. Given that generate electrical signals, organization a may also affect physiology. In this study, six numerical metrics were...
Abstract To obtain the fullest picture of geothermal systems, it is necessary to integrate different types data, for example, surface electromagnetic surveys, lithology, geochemistry, and temperature logs. Here, by joint modeling a multichannel data set we quantify spatial distribution heat transfer through hydrothermally altered, impermeable smectite layer that has developed atop Wairakei‐Tauhara system, New Zealand. Our approach involves first constraining magnetotelluric inversion models...
In geothermal exploration, magnetotelluric (MT) data and inversion models are commonly used to image shallow conductors typically associated with the presence of an electrically conductive clay cap that overlies main reservoir. However, these suffer from nonuniqueness uncertainty, inclusion useful geologic information is still limited. We have developed a Bayesian method integrates electrical resistivity distribution MT surveys borehole methylene blue (MeB) data, indicator content. The MeB...
Abstract The focus of this work is the behavior gas viscosity and density for hydrocarbon mixtures. hydro-carbon gases a function pressure, temperature, density, molecular weight, while weight. This presents new approaches prediction over practical ranges temperature composition. These correlations can be used any production or transportation operations. In we created an extensive database measured (>5000 points >8000 density). was to evaluate existing models density. provide...
Manometry is commonly used for diagnosis of esophageal and anorectal motility disorders. In the colon, manometry a useful tool, but clinical application remains uncertain. This uncertainty partly based on belief that cannot reliably detect non-occluding colonic contractions and, therefore, identify reliable markers dysmotility. study tests ability to record pressure signals in response non-lumen-occluding changes diameter, at different rates wall movement with content viscosities.A numerical...