Oil deposit numerical value simulation parameter sensibility analysis device and method

Abstract

The invention relates to an oil deposit numerical value simulation parameter sensibility analysis device and method. The technical scheme of the oil deposit numerical value simulation parameter sensibility analysis device is that the oil deposit numerical value simulation parameter sensibility analysis device comprises a parameter acquisition device, a model construction device, a solving device and an analysis device, wherein the parameter acquisition device, wherein the parameter acquisition device is used for connecting with an oil deposit numerical value simulator and obtaining the parameter and the data field of a simulation result; the model construction device is use for constructing an adjoint model of which the adjoint variable is independent of a simulation calculation variable and constructing the coefficient matrix of the adjoint model according to a simulator solving result; the solving device is used for solving the adjoint variable and utilizing the obtained adjoint variable to solve a sensitivity coefficient matrix, which relates to a model control variable, of the target function; and the analysis device carries out parameter sensitivity performance analysis according to an obtained result. The device has the beneficial effects that efficiency for oil deposit engineers to carry out history matching can be greatly improved, a high-quality matching result is obtained, a fitting period is obviously shortened, the oil deposit engineers do not need to focus energy on earlier stage complex reservoir physical property parameters, and therefore, personnel cost is lowered.

Description

technical field [0001] The invention relates to the field of petroleum and natural gas engineering, in particular to an oil reservoir numerical simulation parameter sensitivity analysis device and method. Background technique [0002] For reservoir engineers, numerical simulation technology is widely used to solve reservoir engineering problems. How to verify the reliability of numerical simulation simulation is the work of history matching. However, in the process of conventional history matching, only one well or well can be operated at a time. It is possible to operate a well group, but it is difficult to intuitively judge how the parameters of the reservoir affect the result of history matching, which is extremely subjective and takes a long time to go through trial and error. In order to speed up the accuracy and efficiency of history matching, various research methods are proposed. [0003] At present, in the field of petroleum engineering, the commercial software for...

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Problems solved by technology

The experimental design method also has certain limitations: the selection of the range of model parameters and the design of the test plan are subject to certain degree; it is necessary to design a variety of test plans, run the simulator many times, and the amount of calculation is large; when the required research When there are too many model parameters, the results obtained by statistical methods are not ideal, and the accuracy cannot meet the requirements

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