Sweet and Sour Gas Injection as an Enhanced Oil Recovery Method in Abu Dhabi Offshore Oil Fields

2008 ◽  
Author(s):  
Ryoji Uchiyama ◽  
Yutaka Yamada ◽  
Hiroshi Ishii ◽  
Lutfi Aref Salameh
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Gas Injection ◽  
Oil Fields ◽  
Abu Dhabi ◽  
Recovery Method ◽  
Offshore Oil ◽  
Sour Gas

scholarly journals Assessment of CO2 flooding as enhanced oil recovery

2021 ◽  
Vol 340 ◽  
pp. 01021
Author(s):  
Akhat Makhambetov ◽  
Nursultan Azilkhanov
Keyword(s):  
Carbon Dioxide ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Carbonate Reservoir ◽  
Oil Fields ◽  
Co2 Flooding ◽  
Carbon Dioxide Injection ◽  
Recovery Method ◽  
Stage Of Development ◽  
Temperature And Pressure

This article discusses evaluating CO2 injection as an enhanced oil recovery method. Carbon dioxide injection is a secondary and tertiary enhanced oil recovery method and is used in the final stage of development. Carbon dioxide mixes well with oil and can dissolve heavy components. Also, CO2 maintains reservoir pressure, which prevents the flow rate from dropping. In order for carbon dioxide and oil to mix, it must be brought to a critical state by increasing the temperature and pressure. After reaching the required conditions, both substances are fully compatible. The result of this combination is a medium that can easily seep through a porous medium. In fact, gas injection would be appropriate to use in a carbonate reservoir, and in our country and all over the world there are many oil fields that are located in carbonate rock. This work is based on data on a field located in the Krasnoyarsk region, which is part of the Angara fold zones. The field itself is represented mainly by carbonate reservoirs. Also, application of this method for Kazakhstan oilfield will be considered, using an example Zhetybay oilfield.

Gas Re-Injection in the Laminaria and Corallina Fields, Timor Sea: Established Techniques, New Environmental and Commercial Benefits

2002 ◽  
Author(s):  
David M. Gordon ◽  
Scott A. Ryan ◽  
Steve K. Twartz
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Emission Reduction ◽  
Gas Injection ◽  
Oil Field ◽  
Emissions Reduction ◽  
Timor Sea ◽  
Operational Expenditure ◽  
Offshore Oil ◽  
Dual Objectives

This paper describes a gas re-injection project designed with the dual objectives of emissions reduction and enhanced oil recovery in an Australian offshore oil field. While gas injection for enhancing oil recovery is common oilfield practice, there are fewer projects that look exclusively at greenhouse gas (GHG) control (either by sequestration or emission reduction), although there is increasing environmental awareness in the industry on the benefits of doing so. The predominant contribution to total GHG CO2-e emissions is from flaring. Significant reductions in flaring have been achieved since completion of commissioning of injection. Flare CO2 emissions at the beginning of 2000 (February-March) reduced from approximately 163,000 tonnes per month to an average of approximately 26,000 tonnes per month over the remainder of 2000, and to 9,800 tonnes per month, over the first half of 2001. GHG efficiency, evident in the ratio of GHGs emitted per tonne of hydrocarbon produced, reduced from approximately 0.4 tonnes CO2-e per tonne of total hydrocarbon produced before injection to 0.08 after injection over the remainder of 2000, and to 0.06 over the first half of 2001. Miscible displacement is expected to add around 6 million barrels to ultimate recovery from the Corallina reservoir. The use of stored gas as a fuel is expected to achieve significant reductions in operational expenditure later in field life.

scholarly journals Study of the impact of injection parameters on the performance of miscible sour gas injection for enhanced oil recovery

2019 ◽  
Vol 10 (4) ◽  
pp. 1575-1589
Author(s):  
Aminu Yau Kaita ◽  
Oghenerume Ogolo ◽  
Xingru Wu ◽  
Isah Mohammed ◽  
Emmanuel Akaninyene Akpan
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Gas Injection ◽  
Research Work ◽  
Gas Concentration ◽  
Acid Gas ◽  
Minimum Miscibility Pressure ◽  
Injection Parameters ◽  
The Impact ◽  
Sour Gas

AbstractSour gas reservoirs have faced critics for environmental concerns and hazards, necessitating a novel outlook to how the produced sour gases could be either utilized or carefully disposed. Over the years of research and practice, several methods of sour gas processing and utilization have been developed, from the solid storage of sulfur to reinjecting the sour gas into producing or depleted light oil reservoir for miscible flooding enhanced oil recovery. This paper seeks to investigate the impact of injection parameters on the performance of sour gas injection for enhance oil recovery. In designing a miscible gas flooding project, empirical correlations are used and the key parameter which impacts the phase behavior is identified to be the minimum miscibility pressure (MMP). A compositional simulator was utilized in this research work to study the effect of injection parameters such as minimum miscibility pressure, acid gas concentration, injection pressure and injection rate on the performance of miscible sour gas injection for enhanced oil recovery. The findings showed that methane concentration had a significant impact on the MMP of the process. Additionally, an increase in acid gas concentration decreases the MMP of the process as a result of an increase in gas viscosity, consequently extending the plateau period resulting in late gas breakthrough and increased overall recovery of the process.

scholarly journals Screening selection of enhanced oil recovery methods based on analytics of worldwide oilfield data with reference to offshore oil fields in Vietnam

2021 ◽  
Vol 6 ◽  
pp. 4-17
Author(s):  
Doan Huy Hien ◽  
Hoang Long ◽  
Pham Quy Ngoc
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Oil And Gas ◽  
Oil Field ◽  
Oil Fields ◽  
Screening Guidelines ◽  
Reservoir Fluid ◽  
Special Cases ◽  
Key Factor ◽  
Offshore Oil

Selecting a proper enhanced oil recovery (EOR) method for a prospective reservoir is a key factor for successful application of EOR techniques. Reservoir engineers usually refer to screening guidelines to identify potential EOR processes for a given reservoir. However, these guidelines are often too general. In this study, we develop an advanced EOR screening technique based on the statistical analyses with boxplot in combination with some initial deep learning analyses to select the most suitable EOR method for a given mature oil field. At first, a database and the screening guidelines were established by compiling the information of 1,098 EOR projects from various publications in different languages, including Oil and Gas Journal (OGJ) biannual EOR surveys, SPE publications, DOE reports, and Chinese publications, etc. Boxplots were used to detect the special cases for each reservoir/fluid property and to present the graphical screening results. A case study was used to demonstrate that with a simple input of reservoir/fluid information, the proposed procedure could effectively give recommendations for EOR method selection. With the inputs (reservoir and fluid properties) from Vietnam offshore oil fields, the EOR methods recommended by this study are mostly chemical, including polymer and surfactant injection.

Investigation of gas injection flooding performance as enhanced oil recovery method

2016 ◽  
Vol 29 ◽  
pp. 37-45 ◽  
Author(s):  
Mehdi Bayat ◽  
Mostafa Lashkarbolooki ◽  
Ali Zeinolabedini Hezave ◽  
Shahab Ayatollahi
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Gas Injection ◽  
Recovery Method
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