scholarly journals Reuse of Produced Water from CO2 Enhanced Oil Recovery, Coal-Bed Methane, and Mine Pool Water by Coal-Based Power Plants

2012 ◽  
Author(s):  
Chad Knutson ◽  
Seyed A. Dastgheib ◽  
Yaning Yang ◽  
Ali Ashraf ◽  
Cole Duckworth ◽  
...  
Energy ◽  
2004 ◽  
Vol 29 (9-10) ◽  
pp. 1611-1621 ◽  
Author(s):  
F. van Bergen ◽  
J. Gale ◽  
K.J. Damen ◽  
A.F.B. Wildenborg

2021 ◽  
Author(s):  
Abiola Oyatobo ◽  
Amalachukwu Muoghalu ◽  
Chinaza Ikeokwu ◽  
Wilson Ekpotu

Abstract Ineffective methods of increasing oil recovery have been one of the challenges, whose solutions are constantly sought after in the oil and gas industry as the number of under-produced reservoirs increases daily. Water injection is the most extended technology to increase oil recovery, although excessive water production can pose huge damage ranging from the loss of the well to an increase in cost and capital investment requirement of surface facilities to handle the produced water. To mitigate these challenges and encourage the utilization of local contents, locally produced polymers were used in polymer flooding as an Enhanced Oil Recovery approach to increase the viscosity of the injected fluids for better profile control and reduce cost when compared with foreign polymers as floppan. Hence this experimental research was geared towards increasing the efficiency of oil displacement in sandstone reservoirs using locally sourced polymers in Nigeria and also compared the various polymers for optimum efficiency. Starch, Ewedu, and Gum Arabic were used in flooding an already obtained core samples and comparative analysis of this shows that starch yielded the highest recovery due to higher viscosity value as compared to Ewedu with the lowest mobility ratio to Gum Arabic. Finally, the concentration of Starch or Gum Arabic should be increased for optimum recovery.


2008 ◽  
Vol 48 (1) ◽  
pp. 21
Author(s):  
Changhong Gao

Capture of emulsion droplets in porous media can be costly or beneficial. When produced water is injected into reservoir for pressure maintenance, the oil droplets in produced water can plug reservoir rocks and cause the well to lose injectivity. Enhanced oil recovery (EOR) technology takes advantage of this feature and plugs high-injectivity zones with emulsions. Previous studies reveal that interception and straining are the mechanisms of permeability decline. Established models rely on filtration data to determine key parameters. In this work, a network model is proposed to simulate capture of oil droplets in reservoir rocks and resultant permeability reduction. The model is validated with test data and reasonably good results are obtained. The simulation also reveals that the wettability of the tested porous media was altered by injection of emulsions. The new approach considers the characteristics of the porous media and incorporates the damage mechanisms, thus providing more scientific insights into the flow and capture of droplets in porous media.


2018 ◽  
Author(s):  
Muhammad Khalil

Indonesia memiliki power plants yang tersebar di berbagai daerah baik milik PLN ataupun perusahaan swasta (Non PLN). Setiap perusahaan akan mengemisikan Karbon dioksida (CO2) dari hasil pembakaran pada power plant. Sebagai suatu polutan, CO2 memiliki potensi untuk digunakan pada proses industri seperti Enhanced Oil Recovery (EOR). CO2 EOR merupakan suatu usaha meningkatkan produksi minyak dengan cara injeksi CO2 ke dalam suatu sumur produksi tahap tersier. CO2 EOR dapat diterapkan di Indonesia dikarenakan terdapat beberapa power plants (sources) dan perusahaan minyak (sinks), khususnya di Jawa Timur. Hal ini memungkinkan untuk dapat mendistribusikan CO2 dari sources menuju sinks menggunakan perpipaan. Akan tetapi untuk mengaplikasikannya, dibutuhkan biaya (cost) CO2 captured, perpipaan, dan fasilitas EOR. Cost tersebut bergantung pada jumlah CO2 yang dialirkan, jarak dan teknologi yang digunakan, sehingga dibutuhkan optimisasi dikarenakan adanya variasi jumlah CO2 dan jarak. Dalam hal ini variabel optimisasi yaitu jalur perpipaan dan mass flowrate CO2 captured. Terdapat tujuh CO2 sources dengan kapasitas dan lokasi yang berbeda. Selain itu, terdapat tujuh sinks dengan kebutuhan injeksi CO2 yang berbeda pula. Hasil optimisasi menunjukkan CAPEX dan OPEX minimal. Nilai CAPEX dan OPEX setiap source bergantung pada jarak antara source dan sink beserta jumlah mass flowrate CO2 yang didistribusikan. Adapun source CO2 yang terpilih yaitu source 1,3,4 dan 7. Source yang tersisa (2, 5


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