scholarly journals Development of an integrated in-situ remediation technology. Draft topical report for Task {number_sign}7.2 entitled ``Field scale test`` (January 10, 1996--December 31, 1997)

1997 ◽  
Author(s):  
C. Athmer ◽  
S.V. Ho ◽  
B.M. Hughes
Keyword(s):  
In Situ Remediation ◽  
Field Scale ◽  
Remediation Technology ◽  
Scale Test

Simulations of In-Situ Upgrading Process: Interpretation of Laboratory Experiments and Study of Field-Scale Test

SPE Journal ◽  
2019 ◽  
Vol 24 (06) ◽  
pp. 2711-2730
Author(s):  
A.. Perez–Perez ◽  
M.. Mujica Chacín ◽  
I.. Bogdanov ◽  
A.. Brisset ◽  
O.. Garnier
Keyword(s):  
Experimental Data ◽  
Numerical Model ◽  
Field Test ◽  
Energy Efficient ◽  
Computer Assisted ◽  
Solid Residue ◽  
Test Results ◽  
Field Scale ◽  
Scale Test

Summary In–situ upgrading (IU) is a promising method of improved viscous– and heavy–oil recovery. The IU process implies a reservoir heating up and exposure to a temperature higher than 300°C for a time period long enough to promote a series of chemical reactions. The pyrolysis reactions produce lighter oleic and gaseous components, while a solid residue remains underground. In this work, we developed a numerical model of IU using laboratory experience (kinetics measurements and core experiments) and validated the results by applying our model to an IU field–scale test published in the literature. Finally, we studied different operational conditions in a search for energy–efficient configurations. In this work, two types of IU experimental data are used from two vertical–tube experiments with Canadian bitumen cores (0.15 and 0.69 m). A general IU numerical model for the different experimental setups has been developed and compared with experimental data, using a commercial reservoir–simulator framework. This model is capable of representing the phase distribution of pseudocomponents, the thermal decomposition reactions of bitumen fractions, and the generation of gases and residue (solid) under thermal cracking conditions. Simulation results for the cores exposed to a temperature of 380°C and production pressure of 15 bar have shown that oil production (per pseudocomponent) and oil–sample quality were well–predicted by the model. Some differences in gas production and total solid residue were observed with respect to laboratory measurements. Computer–assisted history matching was performed using an uncertainty–analysis tool with the most–important model parameters. To better understand IU field–scale test results, the Shell Viking pilot (Peace River) was modeled and analyzed with the proposed IU model. The appropriate gridblock size was determined and the calculation time was reduced using the adaptive mesh–refinement (AMR) technique. The quality of products, the recovery efficiency, and the energy expenses obtained with our model were in good agreement with the field test results. In addition, the conversion results (upgraded oil, gas, and solid residue) from the experiments were compared with those obtained in the field test. Additional analysis was performed to identify energy–efficient configurations and to understand the role of some key variables (e.g., heating period and rate and the production pressure) in the global IU upgrading performance. We discuss these results, which illustrate and quantify the interplay between energy efficiency and productivity indicators.

scholarly journals Abiotic reduction of aquifer materials by dithionite: A promising in-situ remediation technology

10.2172/43791 ◽  
1994 ◽  
Author(s):  
J.E. Amonette ◽  
J.E. Szecsody ◽  
H.T. Schaef ◽  
Y.A. Gorby ◽  
J.S. Fruchter ◽  
...  
Keyword(s):  
In Situ Remediation ◽  
Remediation Technology ◽  
Abiotic Reduction

Study on the Electrokinetic Remediation Technology of Cr (VI) Polluted Soil

2013 ◽  
Vol 726-731 ◽  
pp. 1751-1754
Author(s):  
Feng Chen ◽  
Ji Hong Xing ◽  
Zhang Wei Cao
Keyword(s):  
Soil Moisture ◽  
Applied Voltage ◽  
Treatment Time ◽  
Potassium Dichromate ◽  
Electrokinetic Remediation ◽  
Polluted Soil ◽  
In Situ Remediation ◽  
Remediation Technology ◽  
Initial Concentration

Electrokinetic remediation is in-situ remediation technique. Potassium dichromate was chosen as the pollutant and its initial concentration was 500mg·kg-1 in Kaolin soil. This experiment, we are to study the feasibility ,the factors which influence the whole course, including applied voltage, treatment time, soil moisture, OH- produced at the cathode and its control. It indicate that, there is separating out oxygen at anode, hydry at cathode. Cr2O72-and CrO42- absorb electron to change to Cr3+, and unite to Cr (OH)3. The experiment results show OH- produced at the cathode has crucial effects on the removal efficiency of chromium; secondly the applied voltage and treatment time have important influence on the efficiency, and the soil moisture affects the efficiency in some degree.

Developing thermally enhanced in situ remediation technology by experiment and numerical simulation

2004 ◽  
Vol 42 (sup1) ◽  
pp. 173-183 ◽  
Author(s):  
Theurer T. Vegas ◽  
Winkler A. Vegas ◽  
Hiester U. Vegas ◽  
Koschitzky H.-P. Vegas
Keyword(s):  
Numerical Simulation ◽  
In Situ Remediation ◽  
Remediation Technology

Simulations of In-Situ Upgrading Process: Interpretation of Laboratory Experiments and Study of Field-Scale Test

2018 ◽  
Author(s):  
A. Perez-Perez ◽  
M. Mujica ◽  
I. Bogdanov ◽  
A. Brisset ◽  
O. Garnier
Keyword(s):  
Laboratory Experiments ◽  
Field Scale ◽  
Scale Test
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