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Correction to: Journal of Petroleum Exploration and Production Technology https://doi.org/10.1007/s13202-024-01778-8
In this article the wrong figures appeared as Figs. 4, 5, 6, 8 and 9; the figures should have appeared as shown below.
The incorrect Fig. 4 is given below.
Fig. 4 Casing blowdown effect on the annular pressure (left) and fluid exchange process (right)
The correct Fig. 4 is given below.
Fig. 4 Casing blowdown effect on the annular pressure (left) and fluid exchange process (right)
The incorrect Fig. 5 is given below.
Fig. 5 Effects of production shifts (left) and initial gas column (right) on annular pressure
The correct Fig. 5 is given below.
Fig. 5 Effects of production shifts (left) and initial gas column (right) on annular pressure
The incorrect Fig. 6 is given below.
Fig. 6 Annular pressure rise trend of two leakage channels (left) and its schematic diagram of fluid exchange between the annulus and tubing string (right)
The correct Fig. 6 is given below.
Fig. 6 Annular pressure rise trend of two leakage channels (left) and its schematic diagram of fluid exchange between the annulus and tubing string (right)
The incorrect Fig. 8 is given below.
Fig. 8 Wellbore pressure profiles and fluid swap diagrams before (left) and after (right) installation of the downhole choke with a partial gaseous annulus above the leak
The correct Fig. 8 is given below.
Fig. 8 Wellbore pressure profiles and fluid swap diagrams before (left) and after (right) installation of the downhole choke with a partial gaseous annulus above the leak
The incorrect Fig. 9 is given below.
Fig. 9 Pressure profile (left) and fluid exchange between the tubing string and annular space (right) after placing the downhole choke below the lower leak point
The correct Fig. 9 is given below.
Fig. 9 Pressure profile (left) and fluid exchange between the tubing string and annular space (right) after placing the downhole choke below the lower leak point
The original article has been corrected.
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Wang, F., Qin, D., Zhang, B. et al. Correction: Application of downhole throttling technology to mitigate sustained casing pressure. J Petrol Explor Prod Technol (2024). https://doi.org/10.1007/s13202-024-01830-7
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DOI: https://doi.org/10.1007/s13202-024-01830-7