Integrated Study On The Applicability Of Co₂-Eor In Unconventional Liquids Rich Reservoirs,
2018
Missouri University of Science and Technology
Integrated Study On The Applicability Of Co₂-Eor In Unconventional Liquids Rich Reservoirs, Dheiaa Khafief Khashan Alfarge
Doctoral Dissertations
"Unconventional Liquids Rich Reservoirs (ULR) such as Bakken, Niobrara, and Eagle Ford have become the main target for oil and gas investors as conventional formations started to deplete and diminish in number. These unconventional plays have a huge oil reserve; however, the predicted primary oil recovery is still low as an average of 7.5 %. Unconventional Improved Oil Recovery (UIOR) techniques are still a new concept in the oil industry because there is no commercial project for any IOR technique so far. Injecting carbon dioxide (CO₂) might be the most potential strategy to improve oil recovery in such complex plays. …
Ore Reserves Estimation Of The Nam Nga Coal Deposit, Lao Pdr, Using Geostatistical Method,
2018
Faculty of Engineering
Ore Reserves Estimation Of The Nam Nga Coal Deposit, Lao Pdr, Using Geostatistical Method, Tongvang Bliachongvang
Chulalongkorn University Theses and Dissertations (Chula ETD)
This research study focuses on estimating the coal deposit quantity and qualities as CV and AC at Nam Nga coal deposit, Lao PDR using OK and SGS geostatistical methods. A total of 295 assays data from 51 exploration drill holes collected from LID Company were used. The results reveal that OK produces geological resource of 2.2 MT with an average CV of 3,733 kcal/kg and an average AC of 48.68 %. The mineable reserve computed from OK's ultimate pit design and pit adjustment are 0.55 MT. The OK method produces 9.32 MT of wastes, yielding a stripping ratio of 10.4:1. …
Designing Binary Low Ift Surfactant System Using Hld Concept For Oil Recovery,
2018
The Petroleum and Petrochemical College
Designing Binary Low Ift Surfactant System Using Hld Concept For Oil Recovery, Tukta Jamprakhon
Chulalongkorn University Theses and Dissertations (Chula ETD)
Surfactant-based microemulsion technology is widely used in tertiary enhanced oil recovery applications (EOR). The formulation of suitable surfactant system is a key success in production and economic feasibility of this technology. The middle phase or Winsor Type III microemulsions, employed for selecting appropriate surfactant system, can offer an optimal salinity at which the high oil solubilization capacity and minimum interfacial tension (IFT) or ultralow IFT (<0.01 mN/m) are obtained. By this technology, more remaining oil in the reservoir can be solubilized and mobilized which leads to an improvement of oil recovery. This study aims to formulate surfactant systems for the oil recovery through microemulsion formulation. The novel mixed anionic surfactant system of a sodium dioctyl sulfosuccinate (AOT) and an internal olefin sulfonates (IOS) with different alkyl chain lengths (C15-18, C19-23, C24-28) were used due to its mixture avoiding the surfactant precipitation. The result found that the binary mixture of AOT and (IOS C15-18 and IOS C19-23) can form the middle phase at the mixing ratios of 5:5 to 9:1 (by molar ratio) with heptane and decane. When the fraction of IOS increased in the mixed AOT/IOS system, the optimal salinity (S*) also increased. For the effects of a carbon tail length of IOS surfactant was observed that the tail length increased with decreasing the optimal salinity. The hydrophilic-lipophilic deviation (HLD) for the mixed surfactant system was investigated to individually determine the K and Cc values for the IOS surfactants. The finding from this work provided a guide for surfactant selection through HLD concept to formulate microemulsion-based surfactant flooding for EOR application.
Study Of Gas Production From Shale Reservoirs With Multi-Stage Hydraulic Fracturing Horizontal Well Considering Multiple Transport Mechanisms,
2018
Missouri University of Science and Technology
Study Of Gas Production From Shale Reservoirs With Multi-Stage Hydraulic Fracturing Horizontal Well Considering Multiple Transport Mechanisms, Chaohua Guo, Mingzhen Wei, Hong Liu
Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works
Development of unconventional shale gas reservoirs (SGRs) has been boosted by the advancements in two key technologies: horizontal drilling and multi-stage hydraulic fracturing. A large number of multi-stage fractured horizontal wells (MsFHW) have been drilled to enhance reservoir production performance. Gas flow in SGRs is a multi-mechanism process, including: desorption, diffusion, and non-Darcy flow. The productivity of the SGRs with MsFHW is influenced by both reservoir conditions and hydraulic fracture properties. However, rare simulation work has been conducted for multi-stage hydraulic fractured SGRs. Most of them use well testing methods, which have too many unrealistic simplifications and assumptions. Also, no …
An Integrated Method For Forecasting Well Deliverability In Gas Condensate Reservoirs With Bottom Aquifer Drive,
2018
Missouri University of Science and Technology
An Integrated Method For Forecasting Well Deliverability In Gas Condensate Reservoirs With Bottom Aquifer Drive, Abdulaziz Ellafi, Ralph E. Flori, Shari Dunn-Norman
Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works
Gas condensate reservoirs constitute a significant portion of global hydrocarbon reserves. In these reservoirs, liquids develop in the pore space once bottomhole pressure falls below dew point. This results in the formation of a liquid bank near the wellbore region which decreases gas mobility, which then reduces gas inflow. In such complex reservoirs, it is important to correctly describe PVT impacts, adjustments to well test analysis and inflow performance, and then combine all effects in the reservoir analysis. The literature contains many references to individual adjustments of PVT analysis, well testing, or inflow performance for gas condensate reservoirs, but few …
Learning From Experience: An Automatic Ph Neutralization System Using Hybrid Fuzzy System And Neural Network,
2018
Missouri University of Science and Technology
Learning From Experience: An Automatic Ph Neutralization System Using Hybrid Fuzzy System And Neural Network, Ethar H.K. Alkamil, Seaar Al-Dabooni, Ahmed K. Abbas, Ralph Flori, Donald C. Wunsch
Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works
In oil and gas industry, the pH level is one of the most important indicators of mud contamination while drilling. Although the process has simple components, the pH neutralization process is complicated in the mud circulation system. This difficulty is due to the high nonlinearity of the process. In this paper, the fuzzy neural network (FNN) is integrated to the fuzzy logic controller (FLC) to create a system which identifies pH fluctuation into a drilling mud system, assesses and signals its severity. And then, it automatically actuates a chemical treating fluids valve (CTFV), such as Caustic Soda (CS), for neutralizing …
Effects Of Monovalent Ions On Low Salinity Waterflooding In Shaly-Sandstone Reservoir,
2018
Faculty of Engineering
Effects Of Monovalent Ions On Low Salinity Waterflooding In Shaly-Sandstone Reservoir, Ativish Yomchan
Chulalongkorn University Theses and Dissertations (Chula ETD)
Multi-component Ion Exchange (MIE) was proved to be a major mechanism occurred during Low Salinity Waterflooding (LSWF). Reduction of both total salinity and concentration of divalent ions of injected water together with a presence of monovalent ion results in dissolution of divalent ions linking between rock surface and oil. As a consequence, oil is liberated from rock surface. This study aims to study effects of monovalent ions in MIE mechanism. Stirring test is performed and results show that ion with less hydration radius tends to be more active in MIE; hence, potassium ion and cesium ion illustrate potential in oil …
Evaluation Of Wax Deposition Prevention For Crude Oil Production From Mae Soon Oil Field,
2018
Faculty of Engineering
Evaluation Of Wax Deposition Prevention For Crude Oil Production From Mae Soon Oil Field, Htet Myat Min
Chulalongkorn University Theses and Dissertations (Chula ETD)
Waxy crude oils are normally found in petroleum reservoirs. Crude oil with the wax formation is one of the crucial problems for flow assurance of pipeline transportation in oil and gas production. This issue can commonly cause wax deposition problem and it has made a huge amount of economic losses such as production, time and maintenance cost. Therefore, it is a critical aspect to deal with wax deposition for crude oil flow assurance, especially at the surface region in cold climate. In this study, n-heptane and poly (maleic anhydride-alt-1-octadecane) or MA as the inhibitors with different concentrations will be measured …
Pre-Feasibility Study Of Silica Sand Processing Plant In Sihanoukville Province, Cambodia,
2018
Faculty of Engineering
Pre-Feasibility Study Of Silica Sand Processing Plant In Sihanoukville Province, Cambodia, Sochea Ros
Chulalongkorn University Theses and Dissertations (Chula ETD)
Nowadays, bottom ash and flue gas desulfurization (FGD) gypsum are by-products of the coal combustion process from coal-fired power plant. Bottom ash has been applied in many applications such as landfill, cement industry etc., and FGD gypsum is applied in cement and wallboard industry. Also, they can be used in agricultural activities for soil amendment but the amount of bottom ash and FGD used in this function is still low. Furthermore, biochar has long been used to improve soil fertility. The positive impacts of biochar amendment on soils are that it can increase soil capacity to adsorb plant nutrients, decrease …
Utilization Of Biochar Coupled With Coal Combustion Products For Degraded Soil Amendment,
2018
Faculty of Engineering
Utilization Of Biochar Coupled With Coal Combustion Products For Degraded Soil Amendment, Thidphavanh Sengsingkham
Chulalongkorn University Theses and Dissertations (Chula ETD)
Low Salinity Waterflooding (LSWF) has been intensively studied worldwide as it is a low-cost technique. By injecting water with very low salinity compared to formation water in the reservoir, the method changes equilibrium between rock surface, oil and surrounding water, causing wettability alteration through Multi-component Ion Exchange (MIE) mechanism. In this study, ammonium ion is added into low salinity water to facilitate the MIE mechanism in shaly-sandstones reservoir. Experiments are performed with shaly-sandstone rock as it contains both calcium and magnesium ions as part of clays and ammonium ion can express its potential by triggering MIE mechanism. Stirring test, spontaneous …
Adsorption Of Methane And Carbon Dioxide On Activated Carbon And Metal Organic Frameworks,
2018
The Petroleum and Petrochemical College
Adsorption Of Methane And Carbon Dioxide On Activated Carbon And Metal Organic Frameworks, Chutima Sudsuansi
Chulalongkorn University Theses and Dissertations (Chula ETD)
Natural gas has gain popularity for transportation among other fuels since it is the cleanest burning fossil fuel. However, the important challenge for utilizing natural gas is its comparatively low volumetric energy storage density. Consequently, a suitable natural gas storage is needed. Adsorbed natural gas (ANG) is an interesting alternative because it could be expected to reduce the cost and potential damage from compressed natural gas (CNG) and liquefied natural gas (LNG) technology. Comparative adsorption of methane and carbon dioxide on activated carbon ZIF-8, UiO-66, and MIL-53 (Al) was investigated at 35 °C and up to 100 psi. The addition …
Identification Of Crude Oils And Fuel Oils After Weathering Using Biomarkers, Pyrogenic Index And Asphaltenes Contents,
2018
The Petroleum and Petrochemical College
Identification Of Crude Oils And Fuel Oils After Weathering Using Biomarkers, Pyrogenic Index And Asphaltenes Contents, Hathairat Thongkorn
Chulalongkorn University Theses and Dissertations (Chula ETD)
Oil spills have become a global problem. This is one of the serious problems in marine environment. The spills are generally from reservoir zipping, accident or unauthorized drainage. Typically, the spilled oils are fuel oils or crude oils which are difficult to differentiate. After oil spill incident, oils are undergone weathering processes such as evaporation, dissolution, and biodegradation etc., which are main factor of depleting hydrocarbon. This work focuses on the distribution of hydrocarbon and diagnostic ratio of polycyclic aromatic hydrocarbons such as pristane, phytane, phenanthrene, pyrene, chrysene and biomarker in hopane group after weathering processes. Moreover, measuring of Al, …
Heat Exchanger Network Retrofit Under Fouling Effect,
2018
The Petroleum and Petrochemical College
Heat Exchanger Network Retrofit Under Fouling Effect, Jaturaporn Yanyongsak
Chulalongkorn University Theses and Dissertations (Chula ETD)
The energy conservation by heat exchanger network (HEN) is important in process design according to an increase of energy costs and global environmental concerns. To minimize the energy consumption with positive net present value (NPV), the retrofitted HEN plays an important role in process energy systems. The HEN retrofit model is based on stage-wise superstructure by Yee and Grossmann (1990). In addition, fouling deposition on the surface area of heat exchangers causes extra energy consumption, production loss and maintenance costs. The new proposed model is retrofitting HEN with fouling effects. This method achieves HEN with the optimal trade-offs between energy …
Methane Hydrate Formation And Dissociation : Roles Of Promoters,
2018
The Petroleum and Petrochemical College
Methane Hydrate Formation And Dissociation : Roles Of Promoters, Kimhak Neak
Chulalongkorn University Theses and Dissertations (Chula ETD)
Roles of promoters become necessary in methane hydrate formation for the attempt of gas storage application, but some additives might cause unwanted results in gas recovery. The effects of amino acids (l-leucine and l-valine) and surfactants, sodium dodecyl sulfate (SDS), and methyl ester sulfonate (MES) was investigated at 8 MPa and 2 to 4 °C. L-leucine system enhanced hydrate formation because of its surface activity and surface adsorption at interfaces. A noticeable methane uptake yield was also observed in the l-valine solution. Its influences might be from the nature of l-valine that has non-polar, aliphatic hydrophobic side chain resulting in …
Optimization Of Single Refrigerant Conocophillips Lng Cascade Process,
2018
The Petroleum and Petrochemical College
Optimization Of Single Refrigerant Conocophillips Lng Cascade Process, Naken Saetang
Chulalongkorn University Theses and Dissertations (Chula ETD)
An LNG cascade process operates under high pressure and extremely low temperature to liquefy natural gas, requiring very high work input to the compressors. This thesis performed the optimization of the single refrigerant ConocoPhillips LNG process by a global optimization technique based on the domain and image partitioning methodology (Faria and Bagajewicz, 2012) to minimize work input to the system. The procedure consists of an NLP upper bound and MILP lower bound models. The lower bound model was formulated by discretizing and linear relaxation of the upper bound non-linear equations by assigning new integer variables and a set of linear …
Energy And Exergy Analysis For Cryogenic Process Design/Retrofit,
2018
The Petroleum and Petrochemical College
Energy And Exergy Analysis For Cryogenic Process Design/Retrofit, Nattawat Threerachannarong
Chulalongkorn University Theses and Dissertations (Chula ETD)
Energy and Exergy analysis are one of alternative techniques to analyze chemical processes in term of energy quality parameters such as enthalpy, entropy and exergetic temperature. The exergetic temperature can conduct Exergy Composite Curves diagram (ECCs) (Marmolejo-Correa, 2012) which represents exergy targets: exergy requirement, exergy rejection and exergy destruction etc. In addition, these targets can be used for improving processes. The strength points of these analysis are to design the new process and to improve the utility performance. Therefore, these analysis methods have been applied to low-temperature process that requires a large amount of energy consumption. In this work, there …
Removal Of Mixed Vocs Of Benzene, Toluene And Xylene By A Multistage Corona Discharge System,
2018
The Petroleum and Petrochemical College
Removal Of Mixed Vocs Of Benzene, Toluene And Xylene By A Multistage Corona Discharge System, Nitikorn Ditthawat
Chulalongkorn University Theses and Dissertations (Chula ETD)
The oxidation of mixed volatile organic compounds (VOCs) of benzene, tol-uene and xylene in non-thermal plasma corona discharge was investigated. An initial total VOCs concentration of 100 ppm and feed flow rate of 50.0 ml/min were firstly fixed to investigate the effects of an applied voltage and input frequency on VOCs conversion, power consumption and CO₂ and CO selectivities. For a single stage plasma system, under the optimum applied voltage of 8 kV and input frequency of 500 Hz, the system gave the high CO₂ selectivity with the low CO selectivity and the lowest power consumption. At the optimum operationable …
Life Cycle Assessment Of End Of Life Strategies For Waste From Petroleum Production,
2018
The Petroleum and Petrochemical College
Life Cycle Assessment Of End Of Life Strategies For Waste From Petroleum Production, Nuntawat Urairat
Chulalongkorn University Theses and Dissertations (Chula ETD)
The waste treatment and disposal of oil refining industry sector are one of the significant aspects of environmental concerns. Because they are not only generated in substantial amounts, but also contained with various hazardous substances such as waste oils, spent catalysts, and mercury-contaminated materials. This study aimed to develop and evaluate the waste management strategies, from waste generator (WG) to waste processors (WP), using the material flow analysis (MFA, STAN v.2.6.601) and life cycle assessment (LCA, SimaPro v.8.3.0.0) as an assessment tool. The functional unit is the amount of waste generated from six refineries in the year 2015. The waste …
Effecst Of Water On The Methane Hydrate Formation And Dissociation With Hollow Silica And Activated Carbon,
2018
The Petroleum and Petrochemical College
Effecst Of Water On The Methane Hydrate Formation And Dissociation With Hollow Silica And Activated Carbon, Sarocha Rungrussamee
Chulalongkorn University Theses and Dissertations (Chula ETD)
The porous materials, hollow silica (HSC) and activated carbon (AC), were selected to investigate their effects with water on methane hydrate formation and dissociation. The methane hydrate formation with the porous materials was conducted at 8 MPa and 277 K. The dissociation of hydrates was achieved by thermal stimulation with 294 K temperature driving force. The result showed that the hydrate formation of the system with 1:14 HSC to water ratio, the system with excess water, provided the highest methane consumed and water conversion to hydrates. That is because the HSC has low density allowing it to float on water …
Heat Exchanger Network Design/Retrofit With Partitioning Technique For Linearization Of Specific Heat Capacity-Temperature Relation,
2018
The Petroleum and Petrochemical College
Heat Exchanger Network Design/Retrofit With Partitioning Technique For Linearization Of Specific Heat Capacity-Temperature Relation, Siwat Valeekiatkul
Chulalongkorn University Theses and Dissertations (Chula ETD)
Heat Exchanger Network (HEN) design has been studied for 40 years starting from heuristic technique; pinch analysis and design method to mathematical programming. The stage-wise superstructure by mathematical programming from Yee and Grossmann (1990) was one of the famous models suitable for industrial HEN design under assumption of constant average specific heat capacity (Cp) which generally should be fitted by empirical form of cubic equation. Zhu and Asante (1999) and Ayotte-Sauvé et al. (2017) used piece-wise linearization called stream segment model, to approximate Cp. Their Cp approximation techniques used high number of piece-wises to calculate Cp accurately. This paper presents …
