IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
UP-0499391
(2006-08-04)
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등록번호 |
US-7599803
(2009-10-20)
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발명자
/ 주소 |
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출원인 / 주소 |
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인용정보 |
피인용 횟수 :
0 인용 특허 :
9 |
초록
▼
Methods and systems for testing a hydrocarbon well. Real time monitoring of the flow stream discharging from a well is used to collect physical and electromagnetic characterization data on the flow stream. A data filter is used to exclude data points uncharacteristic of the true performance of the w
Methods and systems for testing a hydrocarbon well. Real time monitoring of the flow stream discharging from a well is used to collect physical and electromagnetic characterization data on the flow stream. A data filter is used to exclude data points uncharacteristic of the true performance of the well at that time in the operational cycle of the well. A statistical evaluation during or after at least some data has been collected is used to determine when the data set meets an acceptable level of data quality. The filtering parameters are adjusted to improve future detection, correction, and filtering of uncharacteristic data. Corrective transforms can be derived and applied to selected uncharacteristic data to recondition and retain the data. The filtered and completed data set is used to generate a hindsight determination of crude petroleum oil production output, including petroleum oil, water, and gas fractions and production rates.
대표청구항
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What is claimed is: 1. A method for characterizing a multiphase fluid produced by a hydrocarbon well, comprising the actions of: storing a time series of electromagnetic characterization measurements and non-electrical characterization measurements taken on a liquid stream of the multiphase fluid i
What is claimed is: 1. A method for characterizing a multiphase fluid produced by a hydrocarbon well, comprising the actions of: storing a time series of electromagnetic characterization measurements and non-electrical characterization measurements taken on a liquid stream of the multiphase fluid in a memory; filtering, by a characterization system, the electromagnetic characterization measurements and the non-electrical characterization measurements to remove measurements that are uncharacteristic of the hydrocarbon well during steady state operation; calculating, by the characterization system, a first water percentage of the liquid stream for each time in the time series based on the filtered electromagnetic characterization measurements; calculating, by the characterization system, a second water percentage of the liquid stream for each time in the time series based on the filtered non-electrical characterization measurements; and assessing, by the characterization system, an agreement between the first water percentage and the second water percentage for each time in the filtered time series to determine an overall data quality of the filtered electromagnetic characterization measurements and non-electrical characterization measurements. 2. The method of claim 1 further comprising: if the overall data quality is at or above a threshold quality, outputting, by the characterization system, at least one characterization output pertaining to the hydrocarbon well; and if the overall data quality is below the threshold quality, recalculating, by the characterization system, the first water percentage and the second water percentage using additional electromagnetic characterization measurements and non-electrical characterization measurements taken on the liquid stream. 3. The method of claim 1, wherein the measurements that are uncharacteristic of the hydrocarbon well comprises measurements that are above a maximum value or below a minimum value. 4. The method of claim 1, wherein the measurements that are uncharacteristic of the hydrocarbon well comprises measurements that are taken during a start-up of the hydrocarbon well. 5. The method of claim 2, wherein the at least one characterization output is an average selected from the group consisting of water percentage, oil percentage, and gas percentage of the hydrocarbon well. 6. The method of claim 3, wherein the measurements that are uncharacteristic of the hydrocarbon well comprises measurements that are outside the liquid level constraints of a gas-liquid separator of the characterization system. 7. The method of claim 3, wherein the characterization system adjusts the maximum value and the minimum value based at least partly on the overall data quality. 8. A system for characterizing a multiphase fluid produced by a hydrocarbon well, comprising: a memory for storing a time series of electromagnetic characterization measurements and non-electrical characterization measurements taken on a liquid stream of the multiphase fluid; and a processor for: filtering the electromagnetic characterization measurements and the non-electrical characterization measurements to remove measurements that are uncharacteristic of the hydrocarbon well during steady state operation, calculating a first water percentage of the liquid stream for each time in the time series based on the filtered electromagnetic characterization measurements, calculating a second water percentage of the liquid stream for each time in the time series based on the filtered non-electrical characterization measurements, and assessing an agreement between the first water percentage and the second water percentage for each time in the filtered time series to determine an overall data quality of the filtered electromagnetic characterization measurements and non-electrical characterization measurements. 9. The system of claim 8, wherein if the overall data quality is at or above a threshold quality, the processor outputs at least one characterization output pertaining to the hydrocarbon well, and if the overall data quality is below the threshold quality, the processor recalculates the first water percentage and the second water percentage using additional electromagnetic characterization measurements and non-electrical characterization measurements taken on the liquid stream. 10. The system of claim 8, wherein the measurements that are uncharacteristic of the hydrocarbon well comprises measurements that are above a maximum value or below a minimum value. 11. The system of claim 8, wherein the measurements that are uncharacteristic of the hydrocarbon well comprises measurements that are taken during a start-up of the hydrocarbon well. 12. The system of claim 9, wherein the at least one characterization output is an average selected from the group consisting of water percentage, oil percentage, and gas percentage of the hydrocarbon well. 13. The system of claim 10, wherein the measurements that are uncharacteristic of the hydrocarbon well comprises measurements that are outside the liquid level constraints of a gas-liquid separator of the characterization system. 14. The system of claim 10, wherein the characterization system adjusts the maximum value and the minimum value based at least partly on the overall data quality.
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