Petroleum Engineering Commons^™

Optimization Of Co2 Wag Processes In A Selected Carbonate Reservoir: Laboratory Study, Mohamed Elwy Abdalla Amin

Theses

Miscible gas flooding using carbon dioxide is currently investigated as a possible EOR process for a number of United Arab Emirates (UAE) reservoirs. The major factors affecting the implementation of CO₂ floods are the availability of CO₂ at economic prices and the net utilization ratio of CO₂ per barrel of additional oil recovered.Minimizing net utilization requires controlling the high mobility ratio which causes lower sweep. To control the mobility ratio, the Water-Alternating CO₂-gas (WAG) technique is proposed.

The objective of this work is to experimentally assess the recovery of oil with CO₂ injection in …

Supercritical Co2 Extraction Of Oil From Henna Flower: Experimental, Mathematical Modeling, And Antioxidant Activity, Bushra Saeed Mohammed Dohai

Theses

Henna is a plant that has been used traditionally for coloring nail, skin, and hair, and as medicinal plant. The supercritical fluid technology offers a considerable promise as extraction media due to its advantages over other conventional extraction techniques. The extraction of volatile components from flowers of henna was studied using supercritical carbon dioxide at temperatures and pressures ranging from 35 to 55°C and 80 to 120 bar, respectively. A maximum extraction yield of 31 % from 2g of henna flowers was obtained at 45 °C and 120 bar. The composition of the extracts was investigated by gas chromatography technique. …

Recovery Of Carbon Dioxide From Flue Gases, Fahad Husain Al-Masabi

Theses

In this thesis, the modeling and simulation of the absorption of dilute CO₂ into falling film of aqueous solutions of a sterically hindered amine, 2-anino-2-methyl-1-propanol (AMP), was carried out using COMSOL Multiphysics Version 3.3. The operating cases were divided in two groups: (1) gas turbine operating cases (CO₂ 3 mol %) and (II) boiler operating cases (CO₂ 8.5 mol %). The key operating parameters for the studied cases are CO₂ partial pressure, operating temperature and amine concentration in the aqueous solution. The simulation focused on the following: (1) CO₂ Loading in aqueous AMP solution; (2) …

Carbon Dioxide Capture From Flue Gases, Mohamed Rashid Al Rashid

Theses

Global warming and climate change are believed to be caused by the greenhouse effect. CO₂ has been regarded as the main contributor to global climate change which directly results in serious environmental problems. Half of the anthropogenic CO₂ emission sources are emitted from the combustion of fossil fuels in industries and power plants worldwide. The absorption behavior of Carbon dioxide from flue gases can be studied using conventional absorber and polymeric hollow fiber membrane contractors. An industrial absorber data was compared with simulated data using hollow fiber membrane contractor using the gPROMs software package. In this analysis, with …

Optimum Non Hydrocarbon Gas Injection Development Process And Ultimate Recovery Maximization., Abdulla A.F. Abed

Theses

A multi layered heterogeneous reservoir was selected for this study. The integrated reservoir characterization model and the pertinent transformed reservoir simulation history matched model were quality assured and quality checked.

The development scheme was identified and selected where the pattern and completion of the wells were defined to fit the heterogeneity of the reservoir characterization model. Lateral and maximum block contact holes were investigated.

The development processes studied were mainly hydrogen sulphide, carbon dioxide, nitrogen and rich hydrocarbon gas. The Water Alternating Gas/ Simultaneous Water Alternating Gas (WAG/SWAG) processes were also assured. In addition to the main gas and WAG/SWAG …

Low Salinity Flooding In A Selected Carbonate Reservoir: Experimental Approach, Mohamed Yehia Mohamed Mahmoud

Theses

Low-salinity water flooding LoSal^TM has been used to improve oil recovery for many decades. Historically, the mechanisms behind this improvement in oil recovery were attributed to the pressure maintenance and displacement of oil by injected water, i.e. physical mechanism. Recently, evidence from laboratory and field tests indicated that water flooding also involves chemical processes and that modifying of the injection brine salinity and its ionic composition can significantly impact the oil recovery. Several theories regarding the mechanism of LoSal^TM flooding have been discussed in the literature. These include interfacial tension reduction, wettability alteration (cation exchange), change in pH …