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Journal Articles
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Workflow of our proposed method. The dashed box denotes the prediction of b...
Published Online: August 8, 2022
Fig. 1 Workflow of our proposed method. The dashed box denotes the prediction of bottom hole flowing and average formation pressure using LSTM algorithm. More
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Machine learning development involved in step 3 and step 4. The flowchart o...
Published Online: August 8, 2022
Fig. 2 Machine learning development involved in step 3 and step 4. The flowchart of step 3 on the left illustrates the input and output parameters of continuous feature selection strategy, and flowchart of step 4 on the right declare the input variables of the pressure predictive model. More
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Schematic diagram of time series  P  and  Q . DTW warping path of time seri...
Published Online: August 8, 2022
Fig. 3 Schematic diagram of time series P and Q . DTW warping path of time series P and Q (left). DTW mapping of time series P and Q (right). More
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Accumulative gas injection curves of W-6, W-11, and W-13.  X -axis refers t...
Published Online: August 8, 2022
Fig. 5 Accumulative gas injection curves of W-6, W-11, and W-13. X -axis refers to operating time of UGS, and Y -axis refers to accumulative gas injection. W-6 implements a smooth gas injection system, W-13 implements a high-intensity gas injection system, and W-11 implements a slower gas inject... More
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Accumulative gas production curve of W-6, W-11, and W-13.  X -axis refers t...
Published Online: August 8, 2022
Fig. 6 Accumulative gas production curve of W-6, W-11, and W-13. X -axis refers to operating time of UGS, and Y -axis refers to accumulative gas production. W-6 implements a smooth gas production system, W-13 implements a high-intensity gas production system, and W-11 implements a slower gas pro... More
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Average importance coefficient of different features.  X -axis refers to di...
Published Online: August 8, 2022
Fig. 7 Average importance coefficient of different features. X -axis refers to different features, and Y -axis refers to average importance coefficient and accumulative percent. The higher values indicate a higher ranking and significant. More
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Average importance coefficient of W-6, W-11, and W-13.  X -axis refers to a...
Published Online: August 8, 2022
Fig. 8 Average importance coefficient of W-6, W-11, and W-13. X -axis refers to average importance coefficient, and Y -axis refers to different features. The higher values indicate a higher ranking and significant. Liquid production related features have little effect on bottom hole flowing pres... More
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Cross-plot of actual versus predicted value of bottom hole flowing pressure...
Published Online: August 8, 2022
Fig. 9 Cross-plot of actual versus predicted value of bottom hole flowing pressure. The cross points fall on dotted line which indicates a perfect prediction, and solid curve is the fitting curve of cross point. The input variables of the bottom hole flowing pressure predictive model on the left a... More
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Cross-plot of actual versus predicted value of average formation pressure. ...
Published Online: August 8, 2022
Fig. 10 Cross-plot of actual versus predicted value of average formation pressure. The cross points fall on dotted line which indicates a perfect prediction, and solid curve is the fitting curve of cross point. The input variables of the average formation pressure predictive model on the left are ... More
Journal Articles
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Schematic diagram of wettability alteration in carbonates with ion adsorpti...
Published Online: July 28, 2022
Fig. 1 Schematic diagram of wettability alteration in carbonates with ion adsorption of potential-determining ions (Ca +2 , Mg +2 , SO 4 −2 ) More
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Comparison of simulation data against experimental data for ( a ) pH result...
Published Online: July 28, 2022
Fig. 2 Comparison of simulation data against experimental data for ( a ) pH results with experimental data at 25 °C in 0.005 M NaCl, data from Thompson and Pownall [ 50 ] and ( b ) pH results with experimental data at 25 °C in 0.1 M NaCl, data from Buckley et al. [ 52 ] More
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Comparison of simulation concentration data of different aqueous species wi...
Published Online: July 28, 2022
Fig. 3 Comparison of simulation concentration data of different aqueous species with Shehata et al. [ 32 ] experimental data at 90 °C for ( a ) calcium ion, ( b ) magnesium ion, and ( c ) sulfate ion More
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Effect of ionic strength on ion adsorption at 90 °C for ( a ) calcium ion, ...
Published Online: July 28, 2022
Fig. 4 Effect of ionic strength on ion adsorption at 90 °C for ( a ) calcium ion, ( b ) magnesium ion, and ( c ) sulfate ion More
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Effect of different waters (deionized, sulfate spiked, and sulfate diluted)...
Published Online: July 28, 2022
Fig. 6 Effect of different waters (deionized, sulfate spiked, and sulfate diluted) on adsorption at 90 °C and second cycle for ( a ) calcium ion, ( b ) magnesium ion, and ( c ) sulfate ion More
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Effect of different waters (deionized, spiked sulfate, and diluted sulfate)...
Published Online: July 28, 2022
Fig. 7 Effect of different waters (deionized, spiked sulfate, and diluted sulfate) on adsorption at 90 °C and second cycle for ( a ) surface charge and ( b ) pH number More
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Oil recovery data and concentration histories predictions of potential-dete...
Published Online: July 28, 2022
Fig. 8 Oil recovery data and concentration histories predictions of potential-determining ions for the experimental work of Shehata et al. [ 32 ] at 90 °C More