12 Result(s)
within
Eswaran Padmanabhan
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Article
Open AccessApplication of benchtop humidity and temperature chamber in the measurement of water vapor sorption in US shales from Mancos, Marcellus, Eagle Ford and Wolfcamp formations
A benchtop humidity and temperature chamber was used to assess water vapor sorption in four US shale samples at 90 °C. Water sorption isotherms were measured at relative humidity ranging from 10 to 99% and tem...
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Article
Characterizing pyrolysis behavior and kinetic parameters of shale using thermogravimetry
Clear understanding of thermal and compositional properties of shales is important as it is directly linked to gas-flow properties (such as porosity and permeability) that would benefit shale gas development f...
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Article
Open AccessCharacterization of lauryl betaine foam in the Hele-Shaw cell at high foam qualities (80%–98%)
Lauryl betaine (LB) as an amphoteric surfactant carries both positive and negative charges and should be able to generate stable foam through electrostatic interaction with nanoparticles and co-surfactants. Ho...
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Article
Open AccessOptimization of coiled tubing nozzle for sand removal from wellbore
Production is hampered by sand and scale that impede flow and require intervention. Although coiled tubing jetting tools have been very successful in wellbore cleaning operations, the coiled tubing unit has ce...
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Article
Effect of pH on the stability of quartz in a multi-phase system of kaolinite, hydrous Al (hydr)oxide and quartz
The stability of quartz in a multi-phase system of kaolinite and Al (hydr)oxides and quartz has been addressed in quite a few studies. However, the impact of pH on these multi-mineral interactions has not been...
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Chapter and Conference Paper
Spatial Variations Prediction in Carbonate Porosity Using Artificial Neural Network: Subis Limestones, Sarawak, Malaysia
The estimation and modeling of carbonate porosity is of increasing interest in different aspects of geology. Several models have been developed to visualize the pore network systems of carbonate rocks. However...
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Chapter and Conference Paper
Prediction of Lamination Patterns in Heterolithic Sedimentary Sequence, Offshore Sarawak (Malaysia)
This paper aimed at predicting spatio-temporal variations and new lamination patterns based on available core samples and core images. For this purpose, a scan line method was applied on core photographs showi...
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Article
Incorporation of silica into the goethite structure: a microscopic and spectroscopic study
Quartz and iron (hydr)oxide are reactive surface phases that are often associated with one another in soils and sediments. Despite the several studies on the coating of quartz with iron oxides, the reactivity ...
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Article
An enhanced approach to predict permeability in reservoir sandstones using artificial neural networks (ANN)
A key challenge in the oil and gas industry is the ability to predict key petrophysical properties such as porosity and permeability. The predictability of such properties is often complicated by the complex n...
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Article
Geochemistry of Miocene sedimentary rocks from offshore West Baram Delta, Sarawak Basin, Malaysia, South China Sea: implications for weathering, provenance, tectonic setting, paleoclimate and paleoenvironment of deposition
Geochemistry, paleoweathering, provenance, tectonic setting, paleoclimate and paleoenvironment of deposition of offshore Miocene sedimentary rocks in the West Baram Delta have been examined through multi-eleme...
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Chapter and Conference Paper
Hydrocarbon Bond Variation in Some Shales from Batu Gajah, Malaysia
This study demonstrates the variation in aliphatic hydrocarbons in shales by Fourier transform infrared (FTIR) spectroscopic characterization from an isolated outcrop of Batu Gajah area, Malaysia. IR spectra o...
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Article
The origin of oil in the Cretaceous succession from the South Pars Oil Layer of the Persian Gulf
The origin of the oil in Barremian–Hauterivian and Albian age source rock samples from two oil wells (SPO-2 and SPO-3) in the South Pars oil field has been investigated by analyzing the quantity of total organ...
