Back allocation method
AssigneeAbu Dhabi National Oil Company
InventorRobert MERRILL
Life of this patent
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Abstract
The present invention relates inter alia to a method for determining at least one hydrocarbon fluid flow rate, QiHC, of at least one of a plurality of wells connected to a common pipeline with a comingled hydrocarbon fluid flow from the plurality of wells and to adapt at least one operating parameter of at least one well of the plurality of wells. The method comprises the step of receiving comingled-flow measurement data from at least one sensor. Moreover, the method comprises the step of accessing historical well test data, of the ones of the plurality of wells, wherein the well test data are derived from past well tests at the ones of the plurality of wells.
Claims28
A method for determining at least one hydrocarbon fluid flow rate, QiHC, of at least one of a plurality of wells connected to a common pipeline with a comingled hydrocarbon fluid flow from the plurality of wells and to adapt at least one operating parameter of at least one well of the plurality of wells, the method comprising the following steps:
- receiving comingled-flow measurement data from at least one sensor, wherein the comingled-flow measurement data are representative of a comingled hydrocarbon fluid flow rate, QfieldHC;
- accessing historical well test data, wherein the well test data are representative of test hydrocarbon fluid flow rates, Qitest HC, of the ones of the plurality of wells, wherein the well test data are derived from past well tests at the ones of the plurality of wells;
- determining based on Lagrange multipliers, at least one hydrocarbon fluid flow rate, QiHC, of at least one of the plurality of wells using the received comingled-flow measurement data and the accessed historical well test data, and
- adapting at least one operating parameter of at least one well of the plurality of wells, wherein adapting is at least partially based on the at least one determined hydrocarbon fluid flow rate, QiHC, of the at least one of the plurality of wells.
A method for determining at least one hydrocarbon fluid flow rate, QiHC, of at least one of a plurality of wells connected to a common pipeline with a comingled hydrocarbon fluid flow from the plurality of wells, the method comprising the following steps:
- receiving comingled-flow measurement data from at least one sensor, wherein the comingled-flow measurement data are representative of a comingled hydrocarbon fluid flow rate, QfieldHC;
- accessing historical well test data, wherein the well test data are representative of test hydrocarbon fluid flow rates, Qitest HC, of the ones of the plurality of wells, wherein the well test data are derived from past well tests at the ones of the plurality of wells;
- determining, based on Lagrange multipliers, at least one hydrocarbon fluid flow rate, QiHC, of at least one of the plurality of wells using the received comingled-flow measurement data and the accessed historical well test data.
A system for determining at least one hydrocarbon fluid flow rate, QiHC, of at least one of a plurality of wells connected to a common pipeline with a comingled hydrocarbon fluid flow from the plurality of wells, the system comprising:
- a data storing means configured to:
- store historical well test data, wherein the well test data are representative of test hydrocarbon fluid flow rates, Qitest HC, of the ones of the plurality of wells, wherein the well test data are derived from past well tests at the ones of the plurality of wells;
- a data acquisition unit configured to:
- receive comingled-flow measurement data, wherein the comingled-flow measurement data are representative of a comingled hydrocarbon fluid flow rate, QfieldHC;
- and
- access historical well test data from the data storing means;
- and
- an optimizer unit being able to receive data from the data acquisition unit, the optimizer unit configured to:
- determine, based on Lagrange multipliers, at least one hydrocarbon fluid flow rate, QiHC, of at least one of the plurality of wells using the received comingled-flow measurement data and the accessed historical well test data.
Dependencies are inferred from the claim text.