Carbonate rock surface fracture reservoir body characterization method
A carbonate rock, fracture-cavity storage technology, applied in complex mathematical operations, seismic signal processing, seismology for logging records, etc. Collectively describe problems such as leakage to achieve the effect of improving the coincidence rate and improving the recovery rate
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Embodiment 1
[0051] In order to solve the above-mentioned technical problems existing in the prior art, an embodiment of the present invention provides a method for characterizing fracture-vug reservoirs on the surface of carbonate rocks.
[0052] figure 1 A flow chart of the method for characterizing fractured-vuggy reservoirs on the surface of carbonate rocks according to Embodiment 1 of the present invention is shown.
[0053] refer to figure 1 In this embodiment, the fracture-vuggy reservoir description method on the surface of carbonate rocks includes:
[0054] Step S1: Calculate the root mean square amplitude attribute in the first depth range of the carbonate rock surface.
[0055] Step S2: Calculate the relative wave impedance property in the second depth range of the carbonate rock surface.
[0056] Step S3: Establish a regression function between the root mean square amplitude attribute and the relative wave impedance attribute.
[0057] Specifically, through the above-mentio...
Embodiment 2
[0066] In this embodiment, on the basis of the first embodiment, steps S1-S3 and S5 are further limited, and step S4 is further defined differently from the first embodiment.
[0067] In this embodiment, the method for describing fractured-vuggy reservoirs on the surface of carbonate rocks includes:
[0068] Step S1 : Calculating the root mean square amplitude attribute in the first depth range of the carbonate rock surface.
[0069] Specifically, according to the original seismic data volume in the first depth range of the carbonate rock surface layer, the root mean square amplitude value in the first depth range of the carbonate rock surface layer is obtained; the obtained root mean square amplitude value is reciprocated , and the reciprocal of the root mean square amplitude value is homogenized to obtain the root mean square amplitude attribute in the first depth range of the carbonate rock surface. Among them, the calculation of the root mean square amplitude value is: sq...
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