Characterization method of matrix-fracture coupling in fractured carbonate rocks
A carbonate rock and matrix technology, applied in earthwork drilling, wellbore/well components, etc., can solve the problems of not considering the coupling effect of fractures and matrix, and reducing the accuracy of reservoir evaluation
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[0035] In order to make the above and other objects, features and advantages of the present invention more comprehensible, the preferred embodiments are listed below and shown in the accompanying drawings in detail as follows.
[0036] Such as figure 1 as shown, figure 1 It is a flow chart of the characterization method for coupling action between fractured carbonate rock matrix and fractures of the present invention. Firstly, flat plate fracture models with different fracture openings are constructed, and applied to the CT-scanned carbonate matrix digital core to construct a 3D digital core of fractured carbonate rock, and then the lattice Boltzmann method is used to simulate the digital core constructed above The seepage field distribution and permeability are calculated, and finally the permeability coupling coefficient is introduced to analyze the permeability results and determine the expression of the permeability coupling coefficient. Specific steps are as follo...
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