Auto-correction for water cut measurements from multi-phase flowmeter in undersaturated oil wells
AssigneeSaudi Arabian Oil Company
InventorsMohammed H. Alali, Anas A. Shuaibi, Abdulaziz S. Nuaim
Life of this patent
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Abstract
Systems and methods include a computer-implemented method for determining a gas-oil rate (GOR) for an oil well. A measured GOR is determined for an oil well. A measured water cut (WC) is determined for the oil well. An initial solution of the GOR is determined for the oil well. A corrected WC is determined for the oil well based on a function of the measured GOR, the measured WC, and the initial solution of the GOR.
Claims20
A computer-implemented method, comprising:
- determining a gas-oil rate (GOR) for an oil well measured before water injection;
- determining a measured water cut (WC) for the oil well;
- determining an initial solution GOR for the oil well;
- determining a corrected WC for the oil well based on a function comprising a difference between a ceiling value and a ratio of the GOR relative to the measured WC, and the initial solution GOR;
- presenting, in a user interface based on the corrected WC for the oil well, suggestions for implementing improvements in production at the oil well, comprising suggestions for changes to parameters used in drilling at the oil well;
- receiving, through the user interface, user selections of the suggestions for changes to parameters;
- and
- implementing, using the user selections to parameters, changes in drilling at the oil well.
A non-transitory, computer-readable medium storing one or more instructions executable by a computer system to perform operations comprising:
- determining a gas-oil rate (GOR) for an oil well measured before water injection;
- determining a measured water cut (WC) for the oil well;
- determining an initial solution GOR for the oil well;
- determining a corrected WC for the oil well based on a function comprising a difference between a ceiling value and a ratio of the GOR relative to the measured WC, and the initial solution GOR;
- presenting, in a user interface based on the corrected WC for the oil well, suggestions for implementing improvements in production at the oil well, comprising suggestions for changes to parameters used in drilling at the oil well;
- receiving, through the user interface, user selections of the suggestions for changes to parameters;
- and
- implementing, using the user selections to parameters, changes in drilling at the oil well.
A computer-implemented system, comprising:
- one or more processors;
- and
- a non-transitory computer-readable storage medium coupled to the one or more processors and storing programming instructions for execution by the one or more processors, the programming instructions instructing the one or more processors to perform operations comprising:
- determining a gas-oil rate (GOR) for an oil well measured before water injection;
- determining a measured water cut (WC) for the oil well;
- determining an initial solution GOR for the oil well;
- determining a corrected WC for the oil well based on a function comprising a difference between a ceiling value and a ratio of the GOR relative to the measured WC, and the initial solution GOR;
- presenting, in a user interface based on the corrected WC for the oil well, suggestions for implementing improvements in production at the oil well, comprising suggestions for changes to parameters used in drilling at the oil well;
- receiving, through the user interface, user selections of the suggestions for changes to parameters;
- and
- implementing, using the user selections to parameters, changes in drilling at the oil well.
Dependencies are inferred from the claim text.