METHOD FOR DYNAMICALLY ASSESSING PETROLEUM RESERVOIR COMPETENCY AND INCREASING PRODUCTION AND RECOVERY THROUGH ASYMMETRIC ANALYSIS OF PERFORMANCE METRICS
First Claim
1. A method of assessing the competency of a petroleum reservoir relative to production and recovery for purposes of initiating a plan of action to increase production and/or recovery of petroleum from the petroleum reservoir, comprising:
- establishing a plurality of reservoir performance metrics that relate to the production and recovery of petroleum from the reservoir, the performance metrics including one or more leading indicators and one or more lagging indicators;
weighting one or more of the reservoir performance metrics more heavily than at least one other of the reservoir performance metrics, including weighting at least one of the leading indicators more heavily than at least one of the lagging indicators, to facilitate asymmetric analysis of the reservoir performance metrics;
obtaining data relating to the reservoir performance metrics for the petroleum reservoir, the data being generated by at least one of (i) measuring a physical property of one or more producing oil wells and/or injector wells of the reservoir, (ii) taking and analyzing one or more core samples from the reservoir, or (iii) establishing a relationship between one or more different types of data from (i) or (ii);
generating the reservoir performance metrics for the petroleum reservoir from the data; and
determining a competency rating for the petroleum reservoir based on asymmetric analysis of the reservoir performance metrics, the competency rating relating to at least one of production or recovery of petroleum from the petroleum reservoir.
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Abstract
Methods for accurately assessing the condition of a petroleum reservoir and designing and implementing a plan of action to increase production and recovery of petroleum from the reservoir. Information is gathered using a unique set of metrics and information gathering techniques and analyzed in a targeted fashion by properly weighting the data in the context of the particular reservoir and goals of the producer. A reservoir rating is generated using asymmetric analysis of metrics and then used to formulate a plan of action. Production architecture (e.g., number, location and manner of constructing oil and injector wells) is then constructed according to the plan of action. Reservoir performance can be continuously monitored and used to verify production and recovery goals and/or provide triggers or alarms to alter production equipment.
57 Citations
45 Claims
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1. A method of assessing the competency of a petroleum reservoir relative to production and recovery for purposes of initiating a plan of action to increase production and/or recovery of petroleum from the petroleum reservoir, comprising:
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establishing a plurality of reservoir performance metrics that relate to the production and recovery of petroleum from the reservoir, the performance metrics including one or more leading indicators and one or more lagging indicators; weighting one or more of the reservoir performance metrics more heavily than at least one other of the reservoir performance metrics, including weighting at least one of the leading indicators more heavily than at least one of the lagging indicators, to facilitate asymmetric analysis of the reservoir performance metrics; obtaining data relating to the reservoir performance metrics for the petroleum reservoir, the data being generated by at least one of (i) measuring a physical property of one or more producing oil wells and/or injector wells of the reservoir, (ii) taking and analyzing one or more core samples from the reservoir, or (iii) establishing a relationship between one or more different types of data from (i) or (ii); generating the reservoir performance metrics for the petroleum reservoir from the data; and determining a competency rating for the petroleum reservoir based on asymmetric analysis of the reservoir performance metrics, the competency rating relating to at least one of production or recovery of petroleum from the petroleum reservoir. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 38, 39, 40)
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10-18. -18. (canceled)
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19. A method of implementing a plan of action for increasing production and recovery of petroleum from a petroleum reservoir, comprising:
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obtaining a plan of action designed using asymmetric analysis of the petroleum reservoir to determine reservoir competency, the asymmetric analysis being performed by weighting one or more reservoir performance metrics more heavily than at least one other reservoir performance metric, including weighting at least one leading indicator more heavily than at least one lagging indicator, the plan of action including production architecture relating to at least one of
1) new producing oil wells, including the number, location and how they are designed,
2) injection of ancillary fluids to help drive oil in the reservoir toward the producing wells, including the placement of one or more injector wells and volume of ancillary fluids injected through one or more injector wells,
3) establishing maximum contact well,
4) stimulation of one or more existing producing wells to increase productivity, or
5) modifying one or more existing producing wells to decrease output; andperforming one or more of the following; placing new producing oil wells in locations at the petroleum reservoir and constructing the new producing oil wells according to the plan of action; placing injector wells in locations at the petroleum reservoir according to the plan of action in order to help drive oil in the reservoir toward the new producing oil wells and optionally toward pre-existing oil wells of the petroleum reservoir; beginning to operate a maximum contact well at the petroleum reservoir having a primary well bore from which petroleum is removed and multiple well bore branches that extend laterally from the primary well bore, at least some of which well bore branches connecting to the primary well bore at different locations along the primary well bore; stimulating one or more first producing wells at the petroleum reservoir to increase productivity of the first producing wells;
ormodifying one or more second producing wells at the petroleum reservoir to decrease output of the second producing wells. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 41, 42)
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30. A computer implemented method of monitoring and tracking performance of a petroleum reservoir relative to at least one of production or recovery, comprising:
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taking or receiving measurements relating to oil well performance at a petroleum reservoir and inputting the measurements into a computer system having a processor and system memory; the computer system relating the measurements to performance metrics, at least some of which are leading indicators and lagging indicators of oil well performance at the petroleum reservoir, the computer system weighting at least one leading indicating indicator more heavily than at least one lagging indicator; the computer system comparing at least some of the measurements and/or performance metrics relating to oil well performance at the petroleum reservoir to predetermined alarm levels or triggers; and upon a measurement or performance metric exceeding an alarm level or trigger point by falling below a minimum or exceeding a maximum, the computer system performing at least one of
1) altering at least one production parameter by an oil well at the petroleum reservoir or
2) alerting a reservoir manager, owner and/or third party that an alarm level or trigger point has been exceeded relative to the petroleum reservoir. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37)
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43. A method of assessing the competency of a petroleum reservoir relative to production and recovery for purposes of initiating a plan of action to increase production and/or recovery, comprising:
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establishing a plurality of reservoir performance metrics that relate to the production and recovery of petroleum from the reservoir; weighting one or more of the reservoir performance metrics more heavily than at least one other of the reservoir performance metrics to facilitate asymmetric analysis of the reservoir performance metrics; obtaining data relating to the reservoir performance metrics, the data being generated by at least one of (i) measuring a physical property of one or more producing oil wells and/or injector wells of the reservoir, (ii) taking and analyzing one or more core samples from the reservoir, or (iii) establishing a relationship between one or more different types of data from (i) or (ii); generating the reservoir performance metrics from the data; and determining a competency rating for the petroleum reservoir relating to at least one of production or recovery of petroleum from the petroleum reservoir, the competency rating being based at least in part on a reservoir management rating for the petroleum reservoir, the reservoir management rating being determined by asymmetrically weighting performance metrics relating to the following categories;
reservoir management design, reserves appreciation, development and operating plan, reservoir surveillance, technology application, and knowledge management,the performance metrics relating to reservoir management design including recovery design, field depletion rate, well rate/drawdown, displacement process risk, and plateau sustainability, the performance metrics relating to reserves appreciation including oil OIIP/GIIP verification, sweep efficiency, displacement efficiency, reserves verification, and risk mitigation, the performance metrics relating to development and operating plan including production plan achievement, field productivity, pressure management, gas management, water management, and drawdown management, the performance metrics relating to reservoir surveillance including master plan design and master plan implementation, the performance metrics relating to technology application including drilling technology, completion technology, stimulation technology, and reservoir dynamics technology, and the performance metric relating to knowledge management including knowledge management index.
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44. A method of assessing the competency of a petroleum reservoir relative to production and recovery for purposes of initiating a plan of action to increase production and/or recovery, comprising:
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establishing a plurality of reservoir performance metrics that relate to the production and recovery of petroleum from the reservoir; weighting one or more of the reservoir performance metrics more heavily than at least one other of the reservoir performance metrics to facilitate asymmetric analysis of the reservoir performance metrics; obtaining data relating to the reservoir performance metrics, the data being generated by at least one of (i) measuring a physical property of one or more producing oil wells and/or injector wells of the reservoir, (ii) taking and analyzing one or more core samples from the reservoir, or (iii) establishing a relationship between one or more different types of data from (i) or (ii); generating the reservoir performance metrics from the data; and determining a competency rating for the petroleum reservoir relating to at least one of production or recovery of petroleum from the petroleum reservoir, the competency rating being based at least in part on a reservoir management rating for the petroleum reservoir, the reservoir management rating being determined by asymmetrically weighting performance metrics relating to the following categories;
reservoir management design, reserves appreciation, development and operating plan, reservoir surveillance, technology application, and knowledge management, wherein the reservoir management design and the reserves appreciation are weighted more heavily than the development and operating plan, the technology application, the reservoir surveillance, and the knowledge management. - View Dependent Claims (45)
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Specification