Abstract
In view of the problem of huge computations and multiple solutions, a method for optimizing and accelerating the progress of history matching by using material balance analysis was established. Based on simple measuring data, such as average pressure, daily production rate and PVT test, a material balance model can be constructed for a three phase system of hydrocarbon reservoir. According to the material balance calculation, original oil in place and aquifer parameters can be obtained as optimized parameters for numerical simulation, which contributes to solve the multi-solutions problem of history matching. Besides, by conducting uncertainty analysis using Monte-Carlo simulation method, one can determine the adjustment range of input parameters, which helps the engineer definite a clear direction, reduce the number of computations and consequently accelerate the progress of history matching. The reliability of the proposed method was verified according to two examples.
Highlights
The advantage of reservoir numerical simulation is that it can integrate different types of data, such as geology, geophysics, reservoir fluid and rock properties, into one platform for production prediction
There is a great deal of uncertainty in reservoir model, which needs to be modified by history matching
History matching has a huge amount of computation and the results have multiple solutions, If a reasonable initial condition and adjustable range of parameters can be screened out before history matching, the uncertainty can be greatly reduced, the process of matching can be optimized and more reasonable combination of reservoir parameters can be obtained
Summary
The advantage of reservoir numerical simulation is that it can integrate different types of data, such as geology, geophysics, reservoir fluid and rock properties, into one platform for production prediction. With the continuous development of computer technology, the material balance method based on zero dimensional model is gradually replaced by exquisite three-dimensional reservoir numerical simulation. (3) The material balance analysis method studies the relationship between the geological reserves, the remaining reserves and the recovery of the reservoir It does not involve the flow direction of the fluid, and does not consider the spatial changes of rock and fluid properties, the hydrodynamic factors of fluid flow in porous media, fluid differentiation, reservoir geometry, well location or production of different fluids. This paper establishes an accelerated method of historical matching optimization of reservoir numerical simulation based on material balance analysis. Through the research of predicting global sensitivity parameters and uncertainty analysis, it forms the overall macro understanding of the reservoir and accelerates the process of historical matching
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
