Method for enhancing production allocation in an integrated reservoir and surface flow system
First Claim
1. A method for enhancing allocation of fluid flow rates among a plurality of wellbores coupled to surface facilities, comprising:
- modeling fluid flow characteristics of the wellbores and at least one reservoir penetrated thereby;
modeling fluid flow characteristics of the surface facilities;
operating an optimizer to determine an enhanced value of an objective function, the objective function corresponding simultaneously to the modeled fluid flow characteristics of the wellbores and the surface facilities, the objective function relating to at least one production system performance parameter comprising maximum oil production rate; and
allocating fluid flow rates among the plurality of wellbores as determined by operating the optimizer.
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Abstract
A method for enhancing allocation of fluid flow rates among a plurality of wellbores coupled to surface facilities is disclosed. The method includes modeling fluid flow characteristics of the wellbores and reservoirs penetrated by the wellbores. The method includes modeling fluid flow characteristics of the surface facilities. An optimizer adapted to determine an enhanced value of an objective function corresponding to the modeled fluid flow characteristics of the wellbores and the surface facilities is then operated. The objective function relates to at least one production system performance parameter. Fluid flow rates are then allocated according to the optimization.
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Citations
63 Claims
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1. A method for enhancing allocation of fluid flow rates among a plurality of wellbores coupled to surface facilities, comprising:
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modeling fluid flow characteristics of the wellbores and at least one reservoir penetrated thereby; modeling fluid flow characteristics of the surface facilities; operating an optimizer to determine an enhanced value of an objective function, the objective function corresponding simultaneously to the modeled fluid flow characteristics of the wellbores and the surface facilities, the objective function relating to at least one production system performance parameter comprising maximum oil production rate; and allocating fluid flow rates among the plurality of wellbores as determined by operating the optimizer.
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2. A method for enhancing allocation of fluid flow rates among a plurality of wellbores coupled to surface facilities, comprising:
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modeling fluid flow characteristics of the wellbores and at least one reservoir penetrated thereby; modeling fluid flow characteristics of the surface facilities; operating an optimizer to determine an enhanced value of an objective function, the objective function corresponding simultaneously to the modeled fluid flow characteristics of the wellbores and the surface facilities, the objective function relating to at least one production system performance parameter comprising maximum ultimate recovery; and allocating fluid flow rates among the plurality of wellbores as determined by operating the optimizer.
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3. A method for enhancing allocation of fluid flow rates among a plurality of wellbores coupled to surface facilities, comprising:
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modeling fluid flow characteristics of the wellbores and at least one reservoir penetrated thereby; modeling fluid flow characteristics of the surface facilities; operating an optimizer to determine an enhanced value of an objective function, the objective function corresponding simultaneously to the modeled fluid flow characteristics of the wellbores and the surface facilities, the objective function relating to at least one production system performance parameter, wherein the objective function is optimized by successive quadratic programming; and allocating fluid flow rates among the plurality of wellbores as determined by operating the optimizer.
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4. A method for enhancing allocation of fluid flow rates among a plurality of wellbores coupled to surface facilities, comprising:
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modeling fluid flow characteristics of the wellbores and at least one reservoir penetrated thereby; modeling fluid flow characteristics of the surface facilities; operating an optimizer to determine an enhanced value of an objective function, the objective function corresponding simultaneously to the modeled fluid flow characteristics of the wellbores and the surface facilities, the objective function relating to at least one production system performance parameter; allocating fluid flow rates among the plurality of wellbores as determined by operating the optimizer; determining non-convergence of the objective function; adjusting at least one constraint on the objective function; recalculating the objective function; and repeating the adjusting at least one constraint and recalculating until the objective function converges. - View Dependent Claims (5, 6, 7, 8)
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9. A method for enhancing allocation of fluid flow rates among a plurality of wellbores coupled to surface facilities, comprising:
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modeling fluid flow characteristics of the wellbores and at least one reservoir penetrated thereby; modeling fluid flow characteristics of the surface facilities; operating an optimizer to determine an enhanced value of an objective function, the objective function corresponding simultaneously to the modeled fluid flow characteristics of the wellbores and the surface facilities, the objective function relating to at least one production system performance parameter; allocating fluid flow rates among the plurality of wellbores as determined by operating the optimizer; calculating a fluid pressure distribution in the at least one reservoir after a selected time interval; recalculating fluid flow rates from the wellbores in response to the fluid pressure distribution calculation; and repeating the operating the optimizer and reallocating fluid flow rates among the wellbores in response to the repeated operating the optimizer.
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10. A method for enhancing allocation of fluid flow rates among a plurality of wellbores coupled to surface facilities, comprising:
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modeling fluid flow characteristics of the wellbores and at least one reservoir penetrated thereby; modeling fluid flow characteristics of the surface facilities; operating an optimizer to determine an enhanced value of an objective function, the objective function corresponding simultaneously to the modeled fluid flow characteristics of the wellbores and the surface facilities, the objective function relating to at least one production system performance parameter; and allocating fluid flow rates among the plurality of wellbores as determined by operating the optimizer; determining a sensitivity of the objective function to at least one system constraint; adjusting the at least one constraint and recalculating the objective function using the adjusted constraint; and reallocating fluid flow rates among the plurality of wellbores as determined by the recalculated objective function. - View Dependent Claims (11)
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12. A method for enhancing allocation of fluid flow rates among a plurality of wellbores coupled to surface facilities, comprising:
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modeling fluid flow characteristics of the wellbores and at least one reservoir penetrated thereby; modeling fluid flow characteristics of the surface facilities; operating an optimizer to determine an enhanced value of an objective function, the objective function corresponding simultaneously to the modeled fluid flow characteristics of the wellbores and the surface facilities, the objective function relating to at least one production system performance parameter, wherein the optimizer comprises at least one constraint corresponding to a target value of at least one system parameter, the optimizer reaching convergence when a value of the at least one constraint is within a range bounded by the target value; and
allocating fluid flow rates among the plurality of wellbores as determined by operating the optimizer. - View Dependent Claims (13, 14)
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15. A method for enhancing allocation of fluid flow rates among a plurality of wellbores coupled to surface facilities, comprising:
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modeling fluid flow characteristics of the wellbores and at least one reservoir penetrated thereby; modeling fluid flow characteristics of the surface facilities; operating an optimizer adapted to determine an optimal value of an objective function, the objective function corresponding to the modeled fluid flow characteristics of the wellbores and the surface facilities, the objective function relating to at least one production system performance parameter, the optimizing comprising at least one constraint corresponding to a target value of at least one system operating parameter, the optimizer reaching convergence when a value of the at least one constraint is within a range bounded by the target value; and allocating fluid flow rates among the plurality of wellbores as determined by operating the optimizer. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A method for enhancing allocation of fluid flow rates among a plurality of wellbores coupled to surface facilities, comprising:
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modeling fluid flow characteristics of the wellbores and at least one reservoir penetrated thereby; modeling fluid flow characteristics of the surface facilities; optimizing an objective function, the objective function corresponding simultaneously to the modeled fluid flow characteristics of the wellbores and the surface facilities, the objective function relating to at least one production system performance parameter, wherein the at least one production system performance parameter comprises oil production rate; and allocating fluid flow rates among the plurality of wellbores as determined by the optimizing.
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34. A method for optimizing allocation of fluid flow rates among a plurality of wellbores coupled to surface facilities, comprising:
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modeling fluid flow characteristics of the wellbores and at least one reservoir penetrated thereby; modeling fluid flow characteristics of the surface facilities; optimizing an objective function, the objective function corresponding simultaneously to the modeled fluid flow characteristics of the wellbores and the surface facilities, the objective function relating to at least one production system performance parameter, wherein the at least one production system performance parameter comprises ultimate recovery; and allocating fluid flow rates among the plurality of wellbores as determined by the optimizing.
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35. A method for optimizing allocation of fluid flow rates among a plurality of wellbores coupled to surface facilities, comprising:
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modeling fluid flow characteristics of the wellbores and at least one reservoir penetrated thereby; modeling fluid flow characteristics of the surface facilities; optimizing an objective function, the objective function corresponding simultaneously to the modeled fluid flow characteristics of the wellbores and the surface facilities, the objective function relating to at least one production system performance parameter, wherein the at least one production system performance parameter, wherein the objective function is optimized by successive quadratic programming; allocating fluid flow rates among the plurality of wellbores as determined by the optimizing.
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36. A method for optimizing allocation of fluid flow rates among a plurality of wellbores coupled to surface facilities, comprising:
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modeling fluid flow characteristics of the wellbores and at least one reservoir penetrated thereby; modeling fluid flow characteristics of the surface facilities; optimizing an objective function, the objective function corresponding simultaneously to the modeled fluid flow characteristics of the wellbores and the surface facilities, the objective function relating to at least one production system performance parameter, wherein the at least one production system performance parameter; and allocating fluid flow rates among the plurality of wellbores as determined by the optimizing; determining non-convergence of the objective function; adjusting at least one constraint on the objective function; recalculating the objective function; and repeating the adjusting at least one constraint and recalculating until the objective function converges. - View Dependent Claims (37, 38, 39, 40)
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41. A method for optimizing allocation of fluid flow rates among a plurality of wellbores coupled to surface facilities, comprising:
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modeling fluid flow characteristics of the wellbores and at least one reservoir penetrated thereby; modeling fluid flow characteristics of the surface facilities; optimizing an objective function, the objective function corresponding simultaneously to the modeled fluid flow characteristics of the wellbores and the surface facilities, the objective function relating to at least one production system performance parameter, wherein the at least one production system performance parameter; and allocating fluid flow rates among the plurality of wellbores as determined by the optimizing; calculating a fluid pressure distribution in the at least one reservoir after a selected time interval; recalculating fluid flow rates from the wellbores in response to the fluid pressure distribution calculation; repeating the optimizing the objective function; and reallocating fluid flow among the plurality of wellbores in response to the repeated optimizing.
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42. A method for optimizing allocation of fluid flow rates among a plurality of wellbores coupled to surface facilities, comprising:
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modeling fluid flow characteristics of the wellbores and at least one reservoir penetrated thereby; modeling fluid flow characteristics of the surface facilities; optimizing an objective function, the objective function corresponding simultaneously to the modeled fluid flow characteristics of the wellbores and the surface facilities, the objective function relating to at least one production system performance parameter, wherein the at least one production system performance parameter; allocating fluid flow rates among the plurality of wellbores as determined by the optimizing; determining a sensitivity of the objective function to at least one system constraint; adjusting the at least one constraint and recalculating the objective function using the adjusted constraint; and reallocating fluid flow rates among the plurality of wellbores as determined by the recalculated objective function. - View Dependent Claims (43)
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44. A method for optimizing allocation of fluid flow rates among a plurality of wellbores coupled to surface facilities, comprising:
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modeling fluid flow characteristics of the wellbores and at least one reservoir penetrated thereby; modeling fluid flow characteristics of the surface facilities; optimizing an objective function, the objective function corresponding simultaneously to the modeled fluid flow characteristics of the wellbores and the surface facilities, the objective function relating to at least one production system performance parameter, wherein the at least one production system performance parameter, wherein the optimizing comprises at least one constraint corresponding to a target value of at least one system parameter, the optimizing adapted to converge when a value of the at least one constraint is within a range bounded by the target value. allocating fluid flow rates among the plurality of wellbores as determined by the optimizing; - View Dependent Claims (45, 46)
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47. A method for optimizing allocation of fluid flow among a plurality of wellbores coupled to surface facilities, comprising:
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modeling fluid flow characteristics of the wellbores and at least one reservoir penetrated thereby; modeling fluid flow characteristics of the surface facilities; optimizing an objective function, the objective function corresponding to the modeled fluid flow characteristics of the wellbores and the surface facilities, the objective function relating to at least one production system performance parameter; determining a sensitivity of the objective function to at least one system constraint; adjusting the at least one system constraint and recalculating the objective function using the adjusted system constraint; and reallocating fluid flow rates among the plurality of wellbores as determined by the recalculated objective function; and allocating fluid flow rates among the plurality of wellbores as determined by the optimizing. - View Dependent Claims (48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63)
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Specification